SPC Aug 16, 2024 0600 UTC Day 2 Convective Outlook

11 months ago
SPC 0600Z Day 2 Outlook
Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 0100 AM CDT Fri Aug 16 2024 Valid 171200Z - 181200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS FROM PARTS OF THE OZARKS NORTHEASTWARD TO THE UPPER OHIO VALLEY...AND IN PARTS OF THE PACIFIC NORTHWEST... ...SUMMARY... Marginally severe thunderstorms will be possible on Saturday afternoon and evening from the Ozarks and lower Mississippi northeastward into the upper Ohio Valley. Isolated severe storms may also occur across parts of the Pacific Northwest. ...Ozarks/Lower Mississippi Valley... Northwest mid-level flow will remain today from the mid Missouri Valley into the mid Mississippi Valley. At the surface, a moist airmass will be located from the Ozarks into the mid Mississippi Valley. Moderate instability is expected to develop throughout this moist airass by afternoon. As temperatures warm during the day, scattered thunderstorms will be possible across a broad area from the Ohio and Tennessee Valley eastward into the Appalachians. Model forecasts in the Ozarks by afternoon increase MLCAPE into the 1000 to 2000 J/kg range, and show moderate deep-layer shear in most areas. This should be enough for a marginal severe threat during the late afternoon and early evening. Although supercells will be possible, line segments may also develop. Hail and strong gusty winds will be possible with supercells. Severe wind gusts will be the primary threat with line segments. ...Ohio and Tennessee Valleys/Southern and Central Appalachians... An upper-level low will move across the Great Lakes on Saturday, as southwest mid-level flow remains in place from the Ohio and Tennessee Valleys into the Appalachians. Moderate instability is expected to develop by early this afternoon along an axis of maximized low-level moisture from middle Tennessee northeastward into southern and eastern Ohio. Isolated to scattered thunderstorms will likely develop during the afternoon throughout this moist airmass. RAP forecast soundings in the early afternoon from middle Tennessee to southern Ohio show moderate deep-layer shear across much of the region. This could support an isolated severe threat with cells that develop in areas with the strongest instability. However, low to mid-level lapse rates and large-scale ascent are forecast to be relatively weak suggesting that any severe threat will remain marginal. ...Pacific Northwest... An upper-level low will remain in the far eastern Pacific. Ahead of this feature, mid-level flow will be southwesterly across much of the northwestern U.S. At the surface, a moist airmass is forecast to be in place across western Oregon and western Washington. As surface temperatures warm, a narrow corridor of moderate instability is expected to develop near the moist axis, with storms forming during the afternoon. In addition to the instability, model forecasts suggest that 0-6 km shear will be in the 45 to 55 knot range. This, combined with steep mid-level lapse rates may support an isolated severe threat. Cells that form within this area of moderate instability, could obtain a marginal severe threat with hail and severe gusts possible. ..Broyles.. 08/16/2024 Read more

SPC Aug 16, 2024 0600 UTC Day 2 Convective Outlook

11 months ago
SPC 0600Z Day 2 Outlook
Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 0100 AM CDT Fri Aug 16 2024 Valid 171200Z - 181200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS FROM PARTS OF THE OZARKS NORTHEASTWARD TO THE UPPER OHIO VALLEY...AND IN PARTS OF THE PACIFIC NORTHWEST... ...SUMMARY... Marginally severe thunderstorms will be possible on Saturday afternoon and evening from the Ozarks and lower Mississippi northeastward into the upper Ohio Valley. Isolated severe storms may also occur across parts of the Pacific Northwest. ...Ozarks/Lower Mississippi Valley... Northwest mid-level flow will remain today from the mid Missouri Valley into the mid Mississippi Valley. At the surface, a moist airmass will be located from the Ozarks into the mid Mississippi Valley. Moderate instability is expected to develop throughout this moist airass by afternoon. As temperatures warm during the day, scattered thunderstorms will be possible across a broad area from the Ohio and Tennessee Valley eastward into the Appalachians. Model forecasts in the Ozarks by afternoon increase MLCAPE into the 1000 to 2000 J/kg range, and show moderate deep-layer shear in most areas. This should be enough for a marginal severe threat during the late afternoon and early evening. Although supercells will be possible, line segments may also develop. Hail and strong gusty winds will be possible with supercells. Severe wind gusts will be the primary threat with line segments. ...Ohio and Tennessee Valleys/Southern and Central Appalachians... An upper-level low will move across the Great Lakes on Saturday, as southwest mid-level flow remains in place from the Ohio and Tennessee Valleys into the Appalachians. Moderate instability is expected to develop by early this afternoon along an axis of maximized low-level moisture from middle Tennessee northeastward into southern and eastern Ohio. Isolated to scattered thunderstorms will likely develop during the afternoon throughout this moist airmass. RAP forecast soundings in the early afternoon from middle Tennessee to southern Ohio show moderate deep-layer shear across much of the region. This could support an isolated severe threat with cells that develop in areas with the strongest instability. However, low to mid-level lapse rates and large-scale ascent are forecast to be relatively weak suggesting that any severe threat will remain marginal. ...Pacific Northwest... An upper-level low will remain in the far eastern Pacific. Ahead of this feature, mid-level flow will be southwesterly across much of the northwestern U.S. At the surface, a moist airmass is forecast to be in place across western Oregon and western Washington. As surface temperatures warm, a narrow corridor of moderate instability is expected to develop near the moist axis, with storms forming during the afternoon. In addition to the instability, model forecasts suggest that 0-6 km shear will be in the 45 to 55 knot range. This, combined with steep mid-level lapse rates may support an isolated severe threat. Cells that form within this area of moderate instability, could obtain a marginal severe threat with hail and severe gusts possible. ..Broyles.. 08/16/2024 Read more

SPC Aug 16, 2024 0600 UTC Day 2 Convective Outlook

11 months ago
SPC 0600Z Day 2 Outlook
Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 0100 AM CDT Fri Aug 16 2024 Valid 171200Z - 181200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS FROM PARTS OF THE OZARKS NORTHEASTWARD TO THE UPPER OHIO VALLEY...AND IN PARTS OF THE PACIFIC NORTHWEST... ...SUMMARY... Marginally severe thunderstorms will be possible on Saturday afternoon and evening from the Ozarks and lower Mississippi northeastward into the upper Ohio Valley. Isolated severe storms may also occur across parts of the Pacific Northwest. ...Ozarks/Lower Mississippi Valley... Northwest mid-level flow will remain today from the mid Missouri Valley into the mid Mississippi Valley. At the surface, a moist airmass will be located from the Ozarks into the mid Mississippi Valley. Moderate instability is expected to develop throughout this moist airass by afternoon. As temperatures warm during the day, scattered thunderstorms will be possible across a broad area from the Ohio and Tennessee Valley eastward into the Appalachians. Model forecasts in the Ozarks by afternoon increase MLCAPE into the 1000 to 2000 J/kg range, and show moderate deep-layer shear in most areas. This should be enough for a marginal severe threat during the late afternoon and early evening. Although supercells will be possible, line segments may also develop. Hail and strong gusty winds will be possible with supercells. Severe wind gusts will be the primary threat with line segments. ...Ohio and Tennessee Valleys/Southern and Central Appalachians... An upper-level low will move across the Great Lakes on Saturday, as southwest mid-level flow remains in place from the Ohio and Tennessee Valleys into the Appalachians. Moderate instability is expected to develop by early this afternoon along an axis of maximized low-level moisture from middle Tennessee northeastward into southern and eastern Ohio. Isolated to scattered thunderstorms will likely develop during the afternoon throughout this moist airmass. RAP forecast soundings in the early afternoon from middle Tennessee to southern Ohio show moderate deep-layer shear across much of the region. This could support an isolated severe threat with cells that develop in areas with the strongest instability. However, low to mid-level lapse rates and large-scale ascent are forecast to be relatively weak suggesting that any severe threat will remain marginal. ...Pacific Northwest... An upper-level low will remain in the far eastern Pacific. Ahead of this feature, mid-level flow will be southwesterly across much of the northwestern U.S. At the surface, a moist airmass is forecast to be in place across western Oregon and western Washington. As surface temperatures warm, a narrow corridor of moderate instability is expected to develop near the moist axis, with storms forming during the afternoon. In addition to the instability, model forecasts suggest that 0-6 km shear will be in the 45 to 55 knot range. This, combined with steep mid-level lapse rates may support an isolated severe threat. Cells that form within this area of moderate instability, could obtain a marginal severe threat with hail and severe gusts possible. ..Broyles.. 08/16/2024 Read more

SPC Aug 16, 2024 0600 UTC Day 2 Convective Outlook

11 months ago
SPC 0600Z Day 2 Outlook
Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 0100 AM CDT Fri Aug 16 2024 Valid 171200Z - 181200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS FROM PARTS OF THE OZARKS NORTHEASTWARD TO THE UPPER OHIO VALLEY...AND IN PARTS OF THE PACIFIC NORTHWEST... ...SUMMARY... Marginally severe thunderstorms will be possible on Saturday afternoon and evening from the Ozarks and lower Mississippi northeastward into the upper Ohio Valley. Isolated severe storms may also occur across parts of the Pacific Northwest. ...Ozarks/Lower Mississippi Valley... Northwest mid-level flow will remain today from the mid Missouri Valley into the mid Mississippi Valley. At the surface, a moist airmass will be located from the Ozarks into the mid Mississippi Valley. Moderate instability is expected to develop throughout this moist airass by afternoon. As temperatures warm during the day, scattered thunderstorms will be possible across a broad area from the Ohio and Tennessee Valley eastward into the Appalachians. Model forecasts in the Ozarks by afternoon increase MLCAPE into the 1000 to 2000 J/kg range, and show moderate deep-layer shear in most areas. This should be enough for a marginal severe threat during the late afternoon and early evening. Although supercells will be possible, line segments may also develop. Hail and strong gusty winds will be possible with supercells. Severe wind gusts will be the primary threat with line segments. ...Ohio and Tennessee Valleys/Southern and Central Appalachians... An upper-level low will move across the Great Lakes on Saturday, as southwest mid-level flow remains in place from the Ohio and Tennessee Valleys into the Appalachians. Moderate instability is expected to develop by early this afternoon along an axis of maximized low-level moisture from middle Tennessee northeastward into southern and eastern Ohio. Isolated to scattered thunderstorms will likely develop during the afternoon throughout this moist airmass. RAP forecast soundings in the early afternoon from middle Tennessee to southern Ohio show moderate deep-layer shear across much of the region. This could support an isolated severe threat with cells that develop in areas with the strongest instability. However, low to mid-level lapse rates and large-scale ascent are forecast to be relatively weak suggesting that any severe threat will remain marginal. ...Pacific Northwest... An upper-level low will remain in the far eastern Pacific. Ahead of this feature, mid-level flow will be southwesterly across much of the northwestern U.S. At the surface, a moist airmass is forecast to be in place across western Oregon and western Washington. As surface temperatures warm, a narrow corridor of moderate instability is expected to develop near the moist axis, with storms forming during the afternoon. In addition to the instability, model forecasts suggest that 0-6 km shear will be in the 45 to 55 knot range. This, combined with steep mid-level lapse rates may support an isolated severe threat. Cells that form within this area of moderate instability, could obtain a marginal severe threat with hail and severe gusts possible. ..Broyles.. 08/16/2024 Read more

SPC Aug 16, 2024 0600 UTC Day 2 Convective Outlook

11 months ago
SPC 0600Z Day 2 Outlook
Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 0100 AM CDT Fri Aug 16 2024 Valid 171200Z - 181200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS FROM PARTS OF THE OZARKS NORTHEASTWARD TO THE UPPER OHIO VALLEY...AND IN PARTS OF THE PACIFIC NORTHWEST... ...SUMMARY... Marginally severe thunderstorms will be possible on Saturday afternoon and evening from the Ozarks and lower Mississippi northeastward into the upper Ohio Valley. Isolated severe storms may also occur across parts of the Pacific Northwest. ...Ozarks/Lower Mississippi Valley... Northwest mid-level flow will remain today from the mid Missouri Valley into the mid Mississippi Valley. At the surface, a moist airmass will be located from the Ozarks into the mid Mississippi Valley. Moderate instability is expected to develop throughout this moist airass by afternoon. As temperatures warm during the day, scattered thunderstorms will be possible across a broad area from the Ohio and Tennessee Valley eastward into the Appalachians. Model forecasts in the Ozarks by afternoon increase MLCAPE into the 1000 to 2000 J/kg range, and show moderate deep-layer shear in most areas. This should be enough for a marginal severe threat during the late afternoon and early evening. Although supercells will be possible, line segments may also develop. Hail and strong gusty winds will be possible with supercells. Severe wind gusts will be the primary threat with line segments. ...Ohio and Tennessee Valleys/Southern and Central Appalachians... An upper-level low will move across the Great Lakes on Saturday, as southwest mid-level flow remains in place from the Ohio and Tennessee Valleys into the Appalachians. Moderate instability is expected to develop by early this afternoon along an axis of maximized low-level moisture from middle Tennessee northeastward into southern and eastern Ohio. Isolated to scattered thunderstorms will likely develop during the afternoon throughout this moist airmass. RAP forecast soundings in the early afternoon from middle Tennessee to southern Ohio show moderate deep-layer shear across much of the region. This could support an isolated severe threat with cells that develop in areas with the strongest instability. However, low to mid-level lapse rates and large-scale ascent are forecast to be relatively weak suggesting that any severe threat will remain marginal. ...Pacific Northwest... An upper-level low will remain in the far eastern Pacific. Ahead of this feature, mid-level flow will be southwesterly across much of the northwestern U.S. At the surface, a moist airmass is forecast to be in place across western Oregon and western Washington. As surface temperatures warm, a narrow corridor of moderate instability is expected to develop near the moist axis, with storms forming during the afternoon. In addition to the instability, model forecasts suggest that 0-6 km shear will be in the 45 to 55 knot range. This, combined with steep mid-level lapse rates may support an isolated severe threat. Cells that form within this area of moderate instability, could obtain a marginal severe threat with hail and severe gusts possible. ..Broyles.. 08/16/2024 Read more

SPC Aug 16, 2024 0600 UTC Day 2 Convective Outlook

11 months ago
SPC 0600Z Day 2 Outlook
Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 0100 AM CDT Fri Aug 16 2024 Valid 171200Z - 181200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS FROM PARTS OF THE OZARKS NORTHEASTWARD TO THE UPPER OHIO VALLEY...AND IN PARTS OF THE PACIFIC NORTHWEST... ...SUMMARY... Marginally severe thunderstorms will be possible on Saturday afternoon and evening from the Ozarks and lower Mississippi northeastward into the upper Ohio Valley. Isolated severe storms may also occur across parts of the Pacific Northwest. ...Ozarks/Lower Mississippi Valley... Northwest mid-level flow will remain today from the mid Missouri Valley into the mid Mississippi Valley. At the surface, a moist airmass will be located from the Ozarks into the mid Mississippi Valley. Moderate instability is expected to develop throughout this moist airass by afternoon. As temperatures warm during the day, scattered thunderstorms will be possible across a broad area from the Ohio and Tennessee Valley eastward into the Appalachians. Model forecasts in the Ozarks by afternoon increase MLCAPE into the 1000 to 2000 J/kg range, and show moderate deep-layer shear in most areas. This should be enough for a marginal severe threat during the late afternoon and early evening. Although supercells will be possible, line segments may also develop. Hail and strong gusty winds will be possible with supercells. Severe wind gusts will be the primary threat with line segments. ...Ohio and Tennessee Valleys/Southern and Central Appalachians... An upper-level low will move across the Great Lakes on Saturday, as southwest mid-level flow remains in place from the Ohio and Tennessee Valleys into the Appalachians. Moderate instability is expected to develop by early this afternoon along an axis of maximized low-level moisture from middle Tennessee northeastward into southern and eastern Ohio. Isolated to scattered thunderstorms will likely develop during the afternoon throughout this moist airmass. RAP forecast soundings in the early afternoon from middle Tennessee to southern Ohio show moderate deep-layer shear across much of the region. This could support an isolated severe threat with cells that develop in areas with the strongest instability. However, low to mid-level lapse rates and large-scale ascent are forecast to be relatively weak suggesting that any severe threat will remain marginal. ...Pacific Northwest... An upper-level low will remain in the far eastern Pacific. Ahead of this feature, mid-level flow will be southwesterly across much of the northwestern U.S. At the surface, a moist airmass is forecast to be in place across western Oregon and western Washington. As surface temperatures warm, a narrow corridor of moderate instability is expected to develop near the moist axis, with storms forming during the afternoon. In addition to the instability, model forecasts suggest that 0-6 km shear will be in the 45 to 55 knot range. This, combined with steep mid-level lapse rates may support an isolated severe threat. Cells that form within this area of moderate instability, could obtain a marginal severe threat with hail and severe gusts possible. ..Broyles.. 08/16/2024 Read more

SPC Aug 16, 2024 0600 UTC Day 2 Convective Outlook

11 months ago
SPC 0600Z Day 2 Outlook
Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 0100 AM CDT Fri Aug 16 2024 Valid 171200Z - 181200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS FROM PARTS OF THE OZARKS NORTHEASTWARD TO THE UPPER OHIO VALLEY...AND IN PARTS OF THE PACIFIC NORTHWEST... ...SUMMARY... Marginally severe thunderstorms will be possible on Saturday afternoon and evening from the Ozarks and lower Mississippi northeastward into the upper Ohio Valley. Isolated severe storms may also occur across parts of the Pacific Northwest. ...Ozarks/Lower Mississippi Valley... Northwest mid-level flow will remain today from the mid Missouri Valley into the mid Mississippi Valley. At the surface, a moist airmass will be located from the Ozarks into the mid Mississippi Valley. Moderate instability is expected to develop throughout this moist airass by afternoon. As temperatures warm during the day, scattered thunderstorms will be possible across a broad area from the Ohio and Tennessee Valley eastward into the Appalachians. Model forecasts in the Ozarks by afternoon increase MLCAPE into the 1000 to 2000 J/kg range, and show moderate deep-layer shear in most areas. This should be enough for a marginal severe threat during the late afternoon and early evening. Although supercells will be possible, line segments may also develop. Hail and strong gusty winds will be possible with supercells. Severe wind gusts will be the primary threat with line segments. ...Ohio and Tennessee Valleys/Southern and Central Appalachians... An upper-level low will move across the Great Lakes on Saturday, as southwest mid-level flow remains in place from the Ohio and Tennessee Valleys into the Appalachians. Moderate instability is expected to develop by early this afternoon along an axis of maximized low-level moisture from middle Tennessee northeastward into southern and eastern Ohio. Isolated to scattered thunderstorms will likely develop during the afternoon throughout this moist airmass. RAP forecast soundings in the early afternoon from middle Tennessee to southern Ohio show moderate deep-layer shear across much of the region. This could support an isolated severe threat with cells that develop in areas with the strongest instability. However, low to mid-level lapse rates and large-scale ascent are forecast to be relatively weak suggesting that any severe threat will remain marginal. ...Pacific Northwest... An upper-level low will remain in the far eastern Pacific. Ahead of this feature, mid-level flow will be southwesterly across much of the northwestern U.S. At the surface, a moist airmass is forecast to be in place across western Oregon and western Washington. As surface temperatures warm, a narrow corridor of moderate instability is expected to develop near the moist axis, with storms forming during the afternoon. In addition to the instability, model forecasts suggest that 0-6 km shear will be in the 45 to 55 knot range. This, combined with steep mid-level lapse rates may support an isolated severe threat. Cells that form within this area of moderate instability, could obtain a marginal severe threat with hail and severe gusts possible. ..Broyles.. 08/16/2024 Read more

SPC Aug 16, 2024 0600 UTC Day 1 Convective Outlook

11 months ago
SPC 1200Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1246 AM CDT Fri Aug 16 2024 Valid 161200Z - 171200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS PORTIONS OF THE CENTRAL/SOUTHERN PLAINS INTO THE OZARKS OF NORTHWEST ARKANSAS... ...SUMMARY... Isolated-scattered severe thunderstorms are expected across portions of the central and southern Plains, extending into northwest Arkansas. Less concentrated severe is possible across the Midwest into the Tennessee Valley. ...Central/Southern Plains Region... MS Valley trough is forecast to shift into the upper Great Lakes/Midwest region by late afternoon while a dominant upper anticyclone will hold across the southern Rockies. This lead trough will result in a pronounced surface front arcing across the Ozarks-southern KS-northeast CO/NE Panhandle at peak heating. Additionally, there is some indication that a weak short-wave trough may top the southern Rockies ridge and turn southeast along this frontal zone during the latter half of the period. Latest model guidance suggests very strong surface heating will lead to steep 0-3km lapse rates across the central High Plains into northern OK. Forecast soundings depict convective temperatures being breached by 22-23z as surface readings rise through the upper 90s/100F. This boundary should serve as the focus for robust convection shortly after peak heating. Additionally, any storms that develop should grow upscale during the evening as the LLJ is expected to increase across the TX Panhandle into southeast KS in response to the ridge-topping short wave. Initial storm mode may be high based, but potentially supercellular in nature. However, convection should gradually expand in areal coverage and storm mergers are expected along a favorable corridor of low-level warm advection. As a result, one or more MCSs should evolve which will propagate southeast along the front toward the Ozarks during the overnight hours. Severe gusts and very large hail could be noted across the Plains before MCS maturation. ...Midwest/TN Valley... Scattered robust convection is currently ongoing ahead of the MS Valley trough, notably across IL into southern MO. This activity will propagate downstream ahead of the progressive trough and likely be ongoing at the start of the day1 period, especially across the lower OH Valley along the nose of a veered LLJ. Remnants of this convection should propagate southeast across middle TN as the LLJ weakens. With 500mb flow forecast to strengthen there is some concern this activity could advance further into the northern Gulf States than currently anticipated. Some organization is also possible which may necessitate higher severe probabilities. However, nature/extent of the early-day MCS remains a bit too uncertain to warrant more than MRGL at this time. A narrow corridor of stronger boundary-layer heating is expected across eastern IA/northwest IL into extreme southern WI by mid day. This should aid buoyancy and isolated strong/severe thunderstorms are expected to develop immediately ahead of the upper low. Hail/wind are possible with storms that evolve along this corridor of stronger instability. ..Darrow/Halbert.. 08/16/2024 Read more

SPC Aug 16, 2024 0600 UTC Day 1 Convective Outlook

11 months ago
SPC 1200Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1246 AM CDT Fri Aug 16 2024 Valid 161200Z - 171200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS PORTIONS OF THE CENTRAL/SOUTHERN PLAINS INTO THE OZARKS OF NORTHWEST ARKANSAS... ...SUMMARY... Isolated-scattered severe thunderstorms are expected across portions of the central and southern Plains, extending into northwest Arkansas. Less concentrated severe is possible across the Midwest into the Tennessee Valley. ...Central/Southern Plains Region... MS Valley trough is forecast to shift into the upper Great Lakes/Midwest region by late afternoon while a dominant upper anticyclone will hold across the southern Rockies. This lead trough will result in a pronounced surface front arcing across the Ozarks-southern KS-northeast CO/NE Panhandle at peak heating. Additionally, there is some indication that a weak short-wave trough may top the southern Rockies ridge and turn southeast along this frontal zone during the latter half of the period. Latest model guidance suggests very strong surface heating will lead to steep 0-3km lapse rates across the central High Plains into northern OK. Forecast soundings depict convective temperatures being breached by 22-23z as surface readings rise through the upper 90s/100F. This boundary should serve as the focus for robust convection shortly after peak heating. Additionally, any storms that develop should grow upscale during the evening as the LLJ is expected to increase across the TX Panhandle into southeast KS in response to the ridge-topping short wave. Initial storm mode may be high based, but potentially supercellular in nature. However, convection should gradually expand in areal coverage and storm mergers are expected along a favorable corridor of low-level warm advection. As a result, one or more MCSs should evolve which will propagate southeast along the front toward the Ozarks during the overnight hours. Severe gusts and very large hail could be noted across the Plains before MCS maturation. ...Midwest/TN Valley... Scattered robust convection is currently ongoing ahead of the MS Valley trough, notably across IL into southern MO. This activity will propagate downstream ahead of the progressive trough and likely be ongoing at the start of the day1 period, especially across the lower OH Valley along the nose of a veered LLJ. Remnants of this convection should propagate southeast across middle TN as the LLJ weakens. With 500mb flow forecast to strengthen there is some concern this activity could advance further into the northern Gulf States than currently anticipated. Some organization is also possible which may necessitate higher severe probabilities. However, nature/extent of the early-day MCS remains a bit too uncertain to warrant more than MRGL at this time. A narrow corridor of stronger boundary-layer heating is expected across eastern IA/northwest IL into extreme southern WI by mid day. This should aid buoyancy and isolated strong/severe thunderstorms are expected to develop immediately ahead of the upper low. Hail/wind are possible with storms that evolve along this corridor of stronger instability. ..Darrow/Halbert.. 08/16/2024 Read more

SPC Aug 16, 2024 0600 UTC Day 1 Convective Outlook

11 months ago
SPC 1200Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1246 AM CDT Fri Aug 16 2024 Valid 161200Z - 171200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS PORTIONS OF THE CENTRAL/SOUTHERN PLAINS INTO THE OZARKS OF NORTHWEST ARKANSAS... ...SUMMARY... Isolated-scattered severe thunderstorms are expected across portions of the central and southern Plains, extending into northwest Arkansas. Less concentrated severe is possible across the Midwest into the Tennessee Valley. ...Central/Southern Plains Region... MS Valley trough is forecast to shift into the upper Great Lakes/Midwest region by late afternoon while a dominant upper anticyclone will hold across the southern Rockies. This lead trough will result in a pronounced surface front arcing across the Ozarks-southern KS-northeast CO/NE Panhandle at peak heating. Additionally, there is some indication that a weak short-wave trough may top the southern Rockies ridge and turn southeast along this frontal zone during the latter half of the period. Latest model guidance suggests very strong surface heating will lead to steep 0-3km lapse rates across the central High Plains into northern OK. Forecast soundings depict convective temperatures being breached by 22-23z as surface readings rise through the upper 90s/100F. This boundary should serve as the focus for robust convection shortly after peak heating. Additionally, any storms that develop should grow upscale during the evening as the LLJ is expected to increase across the TX Panhandle into southeast KS in response to the ridge-topping short wave. Initial storm mode may be high based, but potentially supercellular in nature. However, convection should gradually expand in areal coverage and storm mergers are expected along a favorable corridor of low-level warm advection. As a result, one or more MCSs should evolve which will propagate southeast along the front toward the Ozarks during the overnight hours. Severe gusts and very large hail could be noted across the Plains before MCS maturation. ...Midwest/TN Valley... Scattered robust convection is currently ongoing ahead of the MS Valley trough, notably across IL into southern MO. This activity will propagate downstream ahead of the progressive trough and likely be ongoing at the start of the day1 period, especially across the lower OH Valley along the nose of a veered LLJ. Remnants of this convection should propagate southeast across middle TN as the LLJ weakens. With 500mb flow forecast to strengthen there is some concern this activity could advance further into the northern Gulf States than currently anticipated. Some organization is also possible which may necessitate higher severe probabilities. However, nature/extent of the early-day MCS remains a bit too uncertain to warrant more than MRGL at this time. A narrow corridor of stronger boundary-layer heating is expected across eastern IA/northwest IL into extreme southern WI by mid day. This should aid buoyancy and isolated strong/severe thunderstorms are expected to develop immediately ahead of the upper low. Hail/wind are possible with storms that evolve along this corridor of stronger instability. ..Darrow/Halbert.. 08/16/2024 Read more

SPC Aug 16, 2024 0600 UTC Day 1 Convective Outlook

11 months ago
SPC 1200Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1246 AM CDT Fri Aug 16 2024 Valid 161200Z - 171200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS PORTIONS OF THE CENTRAL/SOUTHERN PLAINS INTO THE OZARKS OF NORTHWEST ARKANSAS... ...SUMMARY... Isolated-scattered severe thunderstorms are expected across portions of the central and southern Plains, extending into northwest Arkansas. Less concentrated severe is possible across the Midwest into the Tennessee Valley. ...Central/Southern Plains Region... MS Valley trough is forecast to shift into the upper Great Lakes/Midwest region by late afternoon while a dominant upper anticyclone will hold across the southern Rockies. This lead trough will result in a pronounced surface front arcing across the Ozarks-southern KS-northeast CO/NE Panhandle at peak heating. Additionally, there is some indication that a weak short-wave trough may top the southern Rockies ridge and turn southeast along this frontal zone during the latter half of the period. Latest model guidance suggests very strong surface heating will lead to steep 0-3km lapse rates across the central High Plains into northern OK. Forecast soundings depict convective temperatures being breached by 22-23z as surface readings rise through the upper 90s/100F. This boundary should serve as the focus for robust convection shortly after peak heating. Additionally, any storms that develop should grow upscale during the evening as the LLJ is expected to increase across the TX Panhandle into southeast KS in response to the ridge-topping short wave. Initial storm mode may be high based, but potentially supercellular in nature. However, convection should gradually expand in areal coverage and storm mergers are expected along a favorable corridor of low-level warm advection. As a result, one or more MCSs should evolve which will propagate southeast along the front toward the Ozarks during the overnight hours. Severe gusts and very large hail could be noted across the Plains before MCS maturation. ...Midwest/TN Valley... Scattered robust convection is currently ongoing ahead of the MS Valley trough, notably across IL into southern MO. This activity will propagate downstream ahead of the progressive trough and likely be ongoing at the start of the day1 period, especially across the lower OH Valley along the nose of a veered LLJ. Remnants of this convection should propagate southeast across middle TN as the LLJ weakens. With 500mb flow forecast to strengthen there is some concern this activity could advance further into the northern Gulf States than currently anticipated. Some organization is also possible which may necessitate higher severe probabilities. However, nature/extent of the early-day MCS remains a bit too uncertain to warrant more than MRGL at this time. A narrow corridor of stronger boundary-layer heating is expected across eastern IA/northwest IL into extreme southern WI by mid day. This should aid buoyancy and isolated strong/severe thunderstorms are expected to develop immediately ahead of the upper low. Hail/wind are possible with storms that evolve along this corridor of stronger instability. ..Darrow/Halbert.. 08/16/2024 Read more

SPC Aug 16, 2024 0600 UTC Day 1 Convective Outlook

11 months ago
SPC 1200Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1246 AM CDT Fri Aug 16 2024 Valid 161200Z - 171200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS PORTIONS OF THE CENTRAL/SOUTHERN PLAINS INTO THE OZARKS OF NORTHWEST ARKANSAS... ...SUMMARY... Isolated-scattered severe thunderstorms are expected across portions of the central and southern Plains, extending into northwest Arkansas. Less concentrated severe is possible across the Midwest into the Tennessee Valley. ...Central/Southern Plains Region... MS Valley trough is forecast to shift into the upper Great Lakes/Midwest region by late afternoon while a dominant upper anticyclone will hold across the southern Rockies. This lead trough will result in a pronounced surface front arcing across the Ozarks-southern KS-northeast CO/NE Panhandle at peak heating. Additionally, there is some indication that a weak short-wave trough may top the southern Rockies ridge and turn southeast along this frontal zone during the latter half of the period. Latest model guidance suggests very strong surface heating will lead to steep 0-3km lapse rates across the central High Plains into northern OK. Forecast soundings depict convective temperatures being breached by 22-23z as surface readings rise through the upper 90s/100F. This boundary should serve as the focus for robust convection shortly after peak heating. Additionally, any storms that develop should grow upscale during the evening as the LLJ is expected to increase across the TX Panhandle into southeast KS in response to the ridge-topping short wave. Initial storm mode may be high based, but potentially supercellular in nature. However, convection should gradually expand in areal coverage and storm mergers are expected along a favorable corridor of low-level warm advection. As a result, one or more MCSs should evolve which will propagate southeast along the front toward the Ozarks during the overnight hours. Severe gusts and very large hail could be noted across the Plains before MCS maturation. ...Midwest/TN Valley... Scattered robust convection is currently ongoing ahead of the MS Valley trough, notably across IL into southern MO. This activity will propagate downstream ahead of the progressive trough and likely be ongoing at the start of the day1 period, especially across the lower OH Valley along the nose of a veered LLJ. Remnants of this convection should propagate southeast across middle TN as the LLJ weakens. With 500mb flow forecast to strengthen there is some concern this activity could advance further into the northern Gulf States than currently anticipated. Some organization is also possible which may necessitate higher severe probabilities. However, nature/extent of the early-day MCS remains a bit too uncertain to warrant more than MRGL at this time. A narrow corridor of stronger boundary-layer heating is expected across eastern IA/northwest IL into extreme southern WI by mid day. This should aid buoyancy and isolated strong/severe thunderstorms are expected to develop immediately ahead of the upper low. Hail/wind are possible with storms that evolve along this corridor of stronger instability. ..Darrow/Halbert.. 08/16/2024 Read more

SPC Aug 16, 2024 0600 UTC Day 1 Convective Outlook

11 months ago
SPC 1200Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1246 AM CDT Fri Aug 16 2024 Valid 161200Z - 171200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS PORTIONS OF THE CENTRAL/SOUTHERN PLAINS INTO THE OZARKS OF NORTHWEST ARKANSAS... ...SUMMARY... Isolated-scattered severe thunderstorms are expected across portions of the central and southern Plains, extending into northwest Arkansas. Less concentrated severe is possible across the Midwest into the Tennessee Valley. ...Central/Southern Plains Region... MS Valley trough is forecast to shift into the upper Great Lakes/Midwest region by late afternoon while a dominant upper anticyclone will hold across the southern Rockies. This lead trough will result in a pronounced surface front arcing across the Ozarks-southern KS-northeast CO/NE Panhandle at peak heating. Additionally, there is some indication that a weak short-wave trough may top the southern Rockies ridge and turn southeast along this frontal zone during the latter half of the period. Latest model guidance suggests very strong surface heating will lead to steep 0-3km lapse rates across the central High Plains into northern OK. Forecast soundings depict convective temperatures being breached by 22-23z as surface readings rise through the upper 90s/100F. This boundary should serve as the focus for robust convection shortly after peak heating. Additionally, any storms that develop should grow upscale during the evening as the LLJ is expected to increase across the TX Panhandle into southeast KS in response to the ridge-topping short wave. Initial storm mode may be high based, but potentially supercellular in nature. However, convection should gradually expand in areal coverage and storm mergers are expected along a favorable corridor of low-level warm advection. As a result, one or more MCSs should evolve which will propagate southeast along the front toward the Ozarks during the overnight hours. Severe gusts and very large hail could be noted across the Plains before MCS maturation. ...Midwest/TN Valley... Scattered robust convection is currently ongoing ahead of the MS Valley trough, notably across IL into southern MO. This activity will propagate downstream ahead of the progressive trough and likely be ongoing at the start of the day1 period, especially across the lower OH Valley along the nose of a veered LLJ. Remnants of this convection should propagate southeast across middle TN as the LLJ weakens. With 500mb flow forecast to strengthen there is some concern this activity could advance further into the northern Gulf States than currently anticipated. Some organization is also possible which may necessitate higher severe probabilities. However, nature/extent of the early-day MCS remains a bit too uncertain to warrant more than MRGL at this time. A narrow corridor of stronger boundary-layer heating is expected across eastern IA/northwest IL into extreme southern WI by mid day. This should aid buoyancy and isolated strong/severe thunderstorms are expected to develop immediately ahead of the upper low. Hail/wind are possible with storms that evolve along this corridor of stronger instability. ..Darrow/Halbert.. 08/16/2024 Read more

SPC Aug 16, 2024 0600 UTC Day 1 Convective Outlook

11 months ago
SPC 1200Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1246 AM CDT Fri Aug 16 2024 Valid 161200Z - 171200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS PORTIONS OF THE CENTRAL/SOUTHERN PLAINS INTO THE OZARKS OF NORTHWEST ARKANSAS... ...SUMMARY... Isolated-scattered severe thunderstorms are expected across portions of the central and southern Plains, extending into northwest Arkansas. Less concentrated severe is possible across the Midwest into the Tennessee Valley. ...Central/Southern Plains Region... MS Valley trough is forecast to shift into the upper Great Lakes/Midwest region by late afternoon while a dominant upper anticyclone will hold across the southern Rockies. This lead trough will result in a pronounced surface front arcing across the Ozarks-southern KS-northeast CO/NE Panhandle at peak heating. Additionally, there is some indication that a weak short-wave trough may top the southern Rockies ridge and turn southeast along this frontal zone during the latter half of the period. Latest model guidance suggests very strong surface heating will lead to steep 0-3km lapse rates across the central High Plains into northern OK. Forecast soundings depict convective temperatures being breached by 22-23z as surface readings rise through the upper 90s/100F. This boundary should serve as the focus for robust convection shortly after peak heating. Additionally, any storms that develop should grow upscale during the evening as the LLJ is expected to increase across the TX Panhandle into southeast KS in response to the ridge-topping short wave. Initial storm mode may be high based, but potentially supercellular in nature. However, convection should gradually expand in areal coverage and storm mergers are expected along a favorable corridor of low-level warm advection. As a result, one or more MCSs should evolve which will propagate southeast along the front toward the Ozarks during the overnight hours. Severe gusts and very large hail could be noted across the Plains before MCS maturation. ...Midwest/TN Valley... Scattered robust convection is currently ongoing ahead of the MS Valley trough, notably across IL into southern MO. This activity will propagate downstream ahead of the progressive trough and likely be ongoing at the start of the day1 period, especially across the lower OH Valley along the nose of a veered LLJ. Remnants of this convection should propagate southeast across middle TN as the LLJ weakens. With 500mb flow forecast to strengthen there is some concern this activity could advance further into the northern Gulf States than currently anticipated. Some organization is also possible which may necessitate higher severe probabilities. However, nature/extent of the early-day MCS remains a bit too uncertain to warrant more than MRGL at this time. A narrow corridor of stronger boundary-layer heating is expected across eastern IA/northwest IL into extreme southern WI by mid day. This should aid buoyancy and isolated strong/severe thunderstorms are expected to develop immediately ahead of the upper low. Hail/wind are possible with storms that evolve along this corridor of stronger instability. ..Darrow/Halbert.. 08/16/2024 Read more

SPC Aug 16, 2024 0600 UTC Day 1 Convective Outlook

11 months ago
SPC 1200Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1246 AM CDT Fri Aug 16 2024 Valid 161200Z - 171200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS PORTIONS OF THE CENTRAL/SOUTHERN PLAINS INTO THE OZARKS OF NORTHWEST ARKANSAS... ...SUMMARY... Isolated-scattered severe thunderstorms are expected across portions of the central and southern Plains, extending into northwest Arkansas. Less concentrated severe is possible across the Midwest into the Tennessee Valley. ...Central/Southern Plains Region... MS Valley trough is forecast to shift into the upper Great Lakes/Midwest region by late afternoon while a dominant upper anticyclone will hold across the southern Rockies. This lead trough will result in a pronounced surface front arcing across the Ozarks-southern KS-northeast CO/NE Panhandle at peak heating. Additionally, there is some indication that a weak short-wave trough may top the southern Rockies ridge and turn southeast along this frontal zone during the latter half of the period. Latest model guidance suggests very strong surface heating will lead to steep 0-3km lapse rates across the central High Plains into northern OK. Forecast soundings depict convective temperatures being breached by 22-23z as surface readings rise through the upper 90s/100F. This boundary should serve as the focus for robust convection shortly after peak heating. Additionally, any storms that develop should grow upscale during the evening as the LLJ is expected to increase across the TX Panhandle into southeast KS in response to the ridge-topping short wave. Initial storm mode may be high based, but potentially supercellular in nature. However, convection should gradually expand in areal coverage and storm mergers are expected along a favorable corridor of low-level warm advection. As a result, one or more MCSs should evolve which will propagate southeast along the front toward the Ozarks during the overnight hours. Severe gusts and very large hail could be noted across the Plains before MCS maturation. ...Midwest/TN Valley... Scattered robust convection is currently ongoing ahead of the MS Valley trough, notably across IL into southern MO. This activity will propagate downstream ahead of the progressive trough and likely be ongoing at the start of the day1 period, especially across the lower OH Valley along the nose of a veered LLJ. Remnants of this convection should propagate southeast across middle TN as the LLJ weakens. With 500mb flow forecast to strengthen there is some concern this activity could advance further into the northern Gulf States than currently anticipated. Some organization is also possible which may necessitate higher severe probabilities. However, nature/extent of the early-day MCS remains a bit too uncertain to warrant more than MRGL at this time. A narrow corridor of stronger boundary-layer heating is expected across eastern IA/northwest IL into extreme southern WI by mid day. This should aid buoyancy and isolated strong/severe thunderstorms are expected to develop immediately ahead of the upper low. Hail/wind are possible with storms that evolve along this corridor of stronger instability. ..Darrow/Halbert.. 08/16/2024 Read more

SPC Aug 16, 2024 0600 UTC Day 1 Convective Outlook

11 months ago
SPC 1200Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1246 AM CDT Fri Aug 16 2024 Valid 161200Z - 171200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS PORTIONS OF THE CENTRAL/SOUTHERN PLAINS INTO THE OZARKS OF NORTHWEST ARKANSAS... ...SUMMARY... Isolated-scattered severe thunderstorms are expected across portions of the central and southern Plains, extending into northwest Arkansas. Less concentrated severe is possible across the Midwest into the Tennessee Valley. ...Central/Southern Plains Region... MS Valley trough is forecast to shift into the upper Great Lakes/Midwest region by late afternoon while a dominant upper anticyclone will hold across the southern Rockies. This lead trough will result in a pronounced surface front arcing across the Ozarks-southern KS-northeast CO/NE Panhandle at peak heating. Additionally, there is some indication that a weak short-wave trough may top the southern Rockies ridge and turn southeast along this frontal zone during the latter half of the period. Latest model guidance suggests very strong surface heating will lead to steep 0-3km lapse rates across the central High Plains into northern OK. Forecast soundings depict convective temperatures being breached by 22-23z as surface readings rise through the upper 90s/100F. This boundary should serve as the focus for robust convection shortly after peak heating. Additionally, any storms that develop should grow upscale during the evening as the LLJ is expected to increase across the TX Panhandle into southeast KS in response to the ridge-topping short wave. Initial storm mode may be high based, but potentially supercellular in nature. However, convection should gradually expand in areal coverage and storm mergers are expected along a favorable corridor of low-level warm advection. As a result, one or more MCSs should evolve which will propagate southeast along the front toward the Ozarks during the overnight hours. Severe gusts and very large hail could be noted across the Plains before MCS maturation. ...Midwest/TN Valley... Scattered robust convection is currently ongoing ahead of the MS Valley trough, notably across IL into southern MO. This activity will propagate downstream ahead of the progressive trough and likely be ongoing at the start of the day1 period, especially across the lower OH Valley along the nose of a veered LLJ. Remnants of this convection should propagate southeast across middle TN as the LLJ weakens. With 500mb flow forecast to strengthen there is some concern this activity could advance further into the northern Gulf States than currently anticipated. Some organization is also possible which may necessitate higher severe probabilities. However, nature/extent of the early-day MCS remains a bit too uncertain to warrant more than MRGL at this time. A narrow corridor of stronger boundary-layer heating is expected across eastern IA/northwest IL into extreme southern WI by mid day. This should aid buoyancy and isolated strong/severe thunderstorms are expected to develop immediately ahead of the upper low. Hail/wind are possible with storms that evolve along this corridor of stronger instability. ..Darrow/Halbert.. 08/16/2024 Read more

Eastern North Pacific Tropical Weather Outlook

11 months ago

000
ABPZ20 KNHC 160532
TWOEP

Tropical Weather Outlook
NWS National Hurricane Center Miami FL
1100 PM PDT Thu Aug 15 2024

For the eastern North Pacific...east of 140 degrees west longitude:

Offshore of Southwestern Mexico:
A large area of disorganized showers and thunderstorms located a
few hundred miles south of the southwestern coast of Mexico are
associated with a tropical wave. Environmental conditions appear
conducive for gradual development of this system during the next few
days, and a tropical depression is likely to form early next week
while it moves west-northwestward away from the coast of Mexico.
* Formation chance through 48 hours...low...20 percent.
* Formation chance through 7 days...high...80 percent.

Western Portion of the East Pacific:
A broad area of low pressure could form by this weekend well to the
west-southwest of the southern tip of the Baja California peninsula.
Some slow development of this system is possible during the early
and middle parts of next week while it moves generally westward
across the western portion of the East Pacific.
* Formation chance through 48 hours...low...near 0 percent.
* Formation chance through 7 days...low...30 percent.

$$
Forecaster Kelly
NHC Webmaster

SPC MD 1916

11 months ago
MD 1916 CONCERNING SEVERE THUNDERSTORM WATCH 626... FOR NORTHERN ILLINOIS
Mesoscale Discussion 1916 NWS Storm Prediction Center Norman OK 1134 PM CDT Thu Aug 15 2024 Areas affected...northern Illinois Concerning...Severe Thunderstorm Watch 626... Valid 160434Z - 160600Z The severe weather threat for Severe Thunderstorm Watch 626 continues. SUMMARY...Risk for gusty/damaging outflow winds continues across portions of northern Illinois. DISCUSSION...Latest radar loop shows a bowing cluster of strong/severe storms moving eastward across portions of northern Illinois at around 40 kt. The strongest convection is crossing Stark and Peoria counties at this time, and will affect Marshall and Woodford Counties shortly. The storms are currently moving through the axis of instability (1500 to 2000 J/kg mixed-layer CAPE per RAP-based objective analysis), and as such, should maintain intensity over the next 1 to 2 hours before eventually encountering a more stable/increasingly capped airmass beginning just west of the Indiana border. Until then, local gusts in excess of 50 kt will remain possible. ..Goss.. 08/16/2024 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...LOT...ILX...LSX...DVN... LAT...LON 40179131 40838999 41218998 41378849 40338831 39878863 40179131 Read more

SPC MD 1917

11 months ago
MD 1917 CONCERNING SEVERE THUNDERSTORM WATCH 625... FOR NORTHEASTERN OKLAHOMA...NORTHWESTERN ARKANSAS...AND SOUTHERN MISSOURI
Mesoscale Discussion 1917 NWS Storm Prediction Center Norman OK 1144 PM CDT Thu Aug 15 2024 Areas affected...northeastern Oklahoma...northwestern Arkansas...and southern Missouri Concerning...Severe Thunderstorm Watch 625... Valid 160444Z - 160515Z The severe weather threat for Severe Thunderstorm Watch 625 continues. SUMMARY...Severe risk continues to gradually diminish across the Ozarks region and into northeastern Oklahoma. DISCUSSION...Latest radar loop shows a continued/gradual decreasing trend in terms of the intensity of the ongoing/isolated convection across the remaining portions of the watch. Two clusters of storms - one moving east-southeastward across northeastern Oklahoma and a second over south-central Missouri just north of the Arkansas border -- remain fairly vigorous, and capable of a locally damaging wind gust or two in the short term. With time, a continued/gradual decrease in convective intensity/severe potential is expected, as the boundary layer continues to gradually stabilize. However, ample instability suggests that storms -- and perhaps a sporadic/strong gust -- may continue into the overnight hours locally. Still, with the overall wane in risk, the scheduled 16/05Z expiration of the WW appears appropriate, with new WW issuance not required. ..Goss.. 08/16/2024 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...PAH...LSX...LZK...SGF...TSA... LAT...LON 35359624 35939608 36779370 37049317 37719202 37199083 36649092 36119372 35229563 35359624 Read more

SPC Severe Thunderstorm Watch 625 Status Reports

11 months ago
WW 0625 Status Updates
STATUS REPORT ON WW 625 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 30 SE CQB TO 5 NNW CQB TO 30 NNE CQB TO 30 ESE GMJ TO 30 SE SGF TO 15 SSE VIH. ..GOSS..08/16/24 ATTN...WFO...TSA...ICT...SGF...OUN... STATUS REPORT FOR WS 625 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS ARC007-015-143-160540- AR . ARKANSAS COUNTIES INCLUDED ARE BENTON CARROLL WASHINGTON MOC043-065-067-091-105-149-153-161-169-203-209-213-215-225-229- 160540- MO . MISSOURI COUNTIES INCLUDED ARE CHRISTIAN DENT DOUGLAS HOWELL LACLEDE OREGON OZARK PHELPS PULASKI SHANNON STONE TANEY TEXAS WEBSTER WRIGHT OKC001-021-037-041-097-107-111-143-145-160540- OK . OKLAHOMA COUNTIES INCLUDED ARE Read more