Severe Storms

SPC 1730Z Day 2 Outlook
Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1227 PM CDT Mon Jul 21 2025 Valid 221200Z - 231200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER PARTS OF THE NORTHERN PLAINS AND UPPER MISSISSIPPI VALLEY... ...SUMMARY... Scattered severe thunderstorms are expected over parts of the northern Plains into the upper Mississippi Valley Tuesday and Tuesday night. Isolated strong wind gusts may occur over parts of the Southeast during the afternoon. ...Northern Plains to Upper MS Valley... Southwest flow aloft will persist over the region on Tuesday, with an early wave associated with ongoing convection expected from ND into northern MN. This activity will be supported by a southerly low-level jet around 40 kt. Some of this activity may be elevated early on with a warm front into northern MN, however, the ample instability and PWAT may still lead to damaging winds. In addition, large hail will be possible, conditional on storm mode, given strong deep-layer shear. South of this activity, very strong instability is forecast, with MLCAPE to around 4000 J/kg. This will develop ahead of a cold front from near the Red River southwestward into central SD, and south of the effective warm front over northern MN. Storms are expected to develop along the front near 00Z, and persist into the evening across much of MN and into western WI and perhaps western Upper MI. Eventual upscale growth to an MCS with damaging winds is most likely. While predictability is low for exact placement of MCSs, greater concentrations may occur anywhere within the Slight Risk area. ...Southeast... Gradual height rises will occur over the area, with a surface trough developing with daytime heating from southeast GA into SC. The air mass will remain very moist with high PWAT content, and scattered afternoon storms will be common. Multiple initiation zones are likely, including elevated terrain, sea breeze, and surface trough. Areas of strong outflow are likely, with some damaging gusts possible. ..Jewell.. 07/21/2025 Read more

No watches are valid as of Mon Jul 21 21:07:02 UTC 2025.

SPC 2000Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0255 PM CDT Mon Jul 21 2025 Valid 212000Z - 221200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF THE NORTHERN PLAINS... ...SUMMARY... Severe thunderstorms capable of producing large hail, severe gusts, and perhaps a tornado or two will be possible late this afternoon into tonight across parts of the northern Plains. ...20Z Update... The previous forecast remains on track, and only minor adjustments were made with this update. In the northern Plains, the Slight risk was expanded eastward in portions of ND, driven by 15-percent wind probabilities. The latest model guidance is in relatively good agreement, depicting an eastward-moving cluster of storms through the early morning hours -- aided by a strengthening low-level jet and convectively augmented midlevel impulse. Farther south, the Marginal risk was expanded slightly southward across central KS. Here, continued diurnal heating/destabilization amid rich boundary-layer moisture and steep lapse rates will favor severe wind gusts with any storm clusters that evolve through this evening. ..Weinman.. 07/21/2025 .PREV DISCUSSION... /ISSUED 1132 AM CDT Mon Jul 21 2025/ ...Northern Plains into the Upper Midwest... Water-vapor imagery shows a mid-level trough progressing eastward across the Pacific Northwest towards the northern Rockies. A lead mid-level vorticity max rotating through the base of the trough is forecast to pivot east-northeastward from north-central ID into MT by the early evening. In the low levels, a stationary frontal zone extends from near the NE/SD border west-northwestward to near the ID/WY/MT border with an easterly component to the low-level flow being maintained across eastern into central portions of MT. A moisture plume protrudes northwestward along and north of this boundary with a reservoir of 70s F dewpoints over NE to lower 60s in southeast MT (850-mb dewpoints around 16 deg C per objective analysis). A notable capping inversion will likely inhibit storm development until mid afternoon and the initial storm activity will likely focus near higher terrain and over southern MT. Steep mid-level lapse rates and 30-45 kt southwesterly 500-mb flow will support supercells with large to very large hail accompanying these storms from near the Black Hills into southern MT. A tornado risk may develop where locally backed flow in the presence of smaller temperature-dewpoint spreads could evolve near the boundary. Upscale growth into one or more clusters or an MCS seems plausible this evening into the overnight as storms move/develop east into the Dakotas. ...Central Plains... No change was made to the previous forecast for the Central Plains region. Much of the central Plains will remain capped today, as the upper ridge and warm temperatures aloft exert their influence. A surface trough is expected to extend southward across the central High Plains this afternoon, and a remnant MCV related to earlier convection should move eastward along/near the NE/KS border. Both of these features may aid in at least isolated thunderstorm development this afternoon, in the presence of moderate to strong instability amid modest deep-layer shear. Isolated severe hail and wind gusts may occur with any of the more robust cores that can develop and be maintained in an otherwise weak forcing regime. ...Tennessee Valley into the Southeast... Midday visible-satellite imagery shows an agitated cumulus field from southern GA northwestward into the southern Appalachians and Cumberland Plateau. 12 UTC raobs from Jacksonville, Atlanta, and Charleston showed PW in excess of 2 inches, signifying a very moist, deep troposphere. Surface temperatures will continue to warm into the 90s F, thereby steepening 0-2 km lapse rates. As storms develop, some of the stronger water-loaded downdrafts may yield a threat for localized 50-65 mph gusts and pockets of wind damage. This activity will likely diminish by the evening. Read more

SPC 2000Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0255 PM CDT Mon Jul 21 2025 Valid 212000Z - 221200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF THE NORTHERN PLAINS... ...SUMMARY... Severe thunderstorms capable of producing large hail, severe gusts, and perhaps a tornado or two will be possible late this afternoon into tonight across parts of the northern Plains. ...20Z Update... The previous forecast remains on track, and only minor adjustments were made with this update. In the northern Plains, the Slight risk was expanded eastward in portions of ND, driven by 15-percent wind probabilities. The latest model guidance is in relatively good agreement, depicting an eastward-moving cluster of storms through the early morning hours -- aided by a strengthening low-level jet and convectively augmented midlevel impulse. Farther south, the Marginal risk was expanded slightly southward across central KS. Here, continued diurnal heating/destabilization amid rich boundary-layer moisture and steep lapse rates will favor severe wind gusts with any storm clusters that evolve through this evening. ..Weinman.. 07/21/2025 .PREV DISCUSSION... /ISSUED 1132 AM CDT Mon Jul 21 2025/ ...Northern Plains into the Upper Midwest... Water-vapor imagery shows a mid-level trough progressing eastward across the Pacific Northwest towards the northern Rockies. A lead mid-level vorticity max rotating through the base of the trough is forecast to pivot east-northeastward from north-central ID into MT by the early evening. In the low levels, a stationary frontal zone extends from near the NE/SD border west-northwestward to near the ID/WY/MT border with an easterly component to the low-level flow being maintained across eastern into central portions of MT. A moisture plume protrudes northwestward along and north of this boundary with a reservoir of 70s F dewpoints over NE to lower 60s in southeast MT (850-mb dewpoints around 16 deg C per objective analysis). A notable capping inversion will likely inhibit storm development until mid afternoon and the initial storm activity will likely focus near higher terrain and over southern MT. Steep mid-level lapse rates and 30-45 kt southwesterly 500-mb flow will support supercells with large to very large hail accompanying these storms from near the Black Hills into southern MT. A tornado risk may develop where locally backed flow in the presence of smaller temperature-dewpoint spreads could evolve near the boundary. Upscale growth into one or more clusters or an MCS seems plausible this evening into the overnight as storms move/develop east into the Dakotas. ...Central Plains... No change was made to the previous forecast for the Central Plains region. Much of the central Plains will remain capped today, as the upper ridge and warm temperatures aloft exert their influence. A surface trough is expected to extend southward across the central High Plains this afternoon, and a remnant MCV related to earlier convection should move eastward along/near the NE/KS border. Both of these features may aid in at least isolated thunderstorm development this afternoon, in the presence of moderate to strong instability amid modest deep-layer shear. Isolated severe hail and wind gusts may occur with any of the more robust cores that can develop and be maintained in an otherwise weak forcing regime. ...Tennessee Valley into the Southeast... Midday visible-satellite imagery shows an agitated cumulus field from southern GA northwestward into the southern Appalachians and Cumberland Plateau. 12 UTC raobs from Jacksonville, Atlanta, and Charleston showed PW in excess of 2 inches, signifying a very moist, deep troposphere. Surface temperatures will continue to warm into the 90s F, thereby steepening 0-2 km lapse rates. As storms develop, some of the stronger water-loaded downdrafts may yield a threat for localized 50-65 mph gusts and pockets of wind damage. This activity will likely diminish by the evening. Read more

No Mesoscale Discussions are in effect as of Mon Jul 21 20:00:02 UTC 2025.

SPC 1930Z Day 3 Outlook
Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0226 PM CDT Mon Jul 21 2025 Valid 231200Z - 241200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER PARTS OF THE UPPER MISSISSIPPI VALLEY TO UPPER GREAT LAKES REGION... ...SUMMARY... A few organizing clusters of storms posing a risk for severe wind and perhaps some hail are possible across parts of the Upper Midwest into adjacent Great Lakes region Wednesday through Wednesday night. ...Discussion... An upper ridge will exist over the eastern CONUS, with a belt of moderate winds aloft from the upper MS Valley and Great Lakes. A surface trough will extend roughly from Lake Superior southwestward into NE, with rich moisture to the south and east. Storms are likely to be ongoing over the upper Great Lakes region early on Wednesday, supported by southwest winds at 850 mb within a theta-e plume. Some of this early activity could product strong wind gusts. Behind this activity, destabilization will occur near the surface trough, and new development is likely during the late afternoon from MN into SD and NE. With only subtle features aloft, this activity will likely develop into clusters of storms with east/southeastward propagation and attendant outflow/severe gust threat. Otherwise, isolated severe cells with hail will be possible over the High Plains over southeast MT, eastern WY and CO, as moisture backs westward into the steeper lapse rate environment. Longer hodographs over MT/WY could support a supercell or two, and this area will be monitored for higher probabilities in later outlooks. ..Jewell.. 07/21/2025 Read more

SPC 1930Z Day 3 Outlook
Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0226 PM CDT Mon Jul 21 2025 Valid 231200Z - 241200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER PARTS OF THE UPPER MISSISSIPPI VALLEY TO UPPER GREAT LAKES REGION... ...SUMMARY... A few organizing clusters of storms posing a risk for severe wind and perhaps some hail are possible across parts of the Upper Midwest into adjacent Great Lakes region Wednesday through Wednesday night. ...Discussion... An upper ridge will exist over the eastern CONUS, with a belt of moderate winds aloft from the upper MS Valley and Great Lakes. A surface trough will extend roughly from Lake Superior southwestward into NE, with rich moisture to the south and east. Storms are likely to be ongoing over the upper Great Lakes region early on Wednesday, supported by southwest winds at 850 mb within a theta-e plume. Some of this early activity could product strong wind gusts. Behind this activity, destabilization will occur near the surface trough, and new development is likely during the late afternoon from MN into SD and NE. With only subtle features aloft, this activity will likely develop into clusters of storms with east/southeastward propagation and attendant outflow/severe gust threat. Otherwise, isolated severe cells with hail will be possible over the High Plains over southeast MT, eastern WY and CO, as moisture backs westward into the steeper lapse rate environment. Longer hodographs over MT/WY could support a supercell or two, and this area will be monitored for higher probabilities in later outlooks. ..Jewell.. 07/21/2025 Read more

SPC 1930Z Day 3 Outlook
Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0226 PM CDT Mon Jul 21 2025 Valid 231200Z - 241200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER PARTS OF THE UPPER MISSISSIPPI VALLEY TO UPPER GREAT LAKES REGION... ...SUMMARY... A few organizing clusters of storms posing a risk for severe wind and perhaps some hail are possible across parts of the Upper Midwest into adjacent Great Lakes region Wednesday through Wednesday night. ...Discussion... An upper ridge will exist over the eastern CONUS, with a belt of moderate winds aloft from the upper MS Valley and Great Lakes. A surface trough will extend roughly from Lake Superior southwestward into NE, with rich moisture to the south and east. Storms are likely to be ongoing over the upper Great Lakes region early on Wednesday, supported by southwest winds at 850 mb within a theta-e plume. Some of this early activity could product strong wind gusts. Behind this activity, destabilization will occur near the surface trough, and new development is likely during the late afternoon from MN into SD and NE. With only subtle features aloft, this activity will likely develop into clusters of storms with east/southeastward propagation and attendant outflow/severe gust threat. Otherwise, isolated severe cells with hail will be possible over the High Plains over southeast MT, eastern WY and CO, as moisture backs westward into the steeper lapse rate environment. Longer hodographs over MT/WY could support a supercell or two, and this area will be monitored for higher probabilities in later outlooks. ..Jewell.. 07/21/2025 Read more

SPC 1930Z Day 3 Outlook
Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0226 PM CDT Mon Jul 21 2025 Valid 231200Z - 241200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER PARTS OF THE UPPER MISSISSIPPI VALLEY TO UPPER GREAT LAKES REGION... ...SUMMARY... A few organizing clusters of storms posing a risk for severe wind and perhaps some hail are possible across parts of the Upper Midwest into adjacent Great Lakes region Wednesday through Wednesday night. ...Discussion... An upper ridge will exist over the eastern CONUS, with a belt of moderate winds aloft from the upper MS Valley and Great Lakes. A surface trough will extend roughly from Lake Superior southwestward into NE, with rich moisture to the south and east. Storms are likely to be ongoing over the upper Great Lakes region early on Wednesday, supported by southwest winds at 850 mb within a theta-e plume. Some of this early activity could product strong wind gusts. Behind this activity, destabilization will occur near the surface trough, and new development is likely during the late afternoon from MN into SD and NE. With only subtle features aloft, this activity will likely develop into clusters of storms with east/southeastward propagation and attendant outflow/severe gust threat. Otherwise, isolated severe cells with hail will be possible over the High Plains over southeast MT, eastern WY and CO, as moisture backs westward into the steeper lapse rate environment. Longer hodographs over MT/WY could support a supercell or two, and this area will be monitored for higher probabilities in later outlooks. ..Jewell.. 07/21/2025 Read more

SPC 1930Z Day 3 Outlook
Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0226 PM CDT Mon Jul 21 2025 Valid 231200Z - 241200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER PARTS OF THE UPPER MISSISSIPPI VALLEY TO UPPER GREAT LAKES REGION... ...SUMMARY... A few organizing clusters of storms posing a risk for severe wind and perhaps some hail are possible across parts of the Upper Midwest into adjacent Great Lakes region Wednesday through Wednesday night. ...Discussion... An upper ridge will exist over the eastern CONUS, with a belt of moderate winds aloft from the upper MS Valley and Great Lakes. A surface trough will extend roughly from Lake Superior southwestward into NE, with rich moisture to the south and east. Storms are likely to be ongoing over the upper Great Lakes region early on Wednesday, supported by southwest winds at 850 mb within a theta-e plume. Some of this early activity could product strong wind gusts. Behind this activity, destabilization will occur near the surface trough, and new development is likely during the late afternoon from MN into SD and NE. With only subtle features aloft, this activity will likely develop into clusters of storms with east/southeastward propagation and attendant outflow/severe gust threat. Otherwise, isolated severe cells with hail will be possible over the High Plains over southeast MT, eastern WY and CO, as moisture backs westward into the steeper lapse rate environment. Longer hodographs over MT/WY could support a supercell or two, and this area will be monitored for higher probabilities in later outlooks. ..Jewell.. 07/21/2025 Read more

SPC 1930Z Day 3 Outlook
Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0226 PM CDT Mon Jul 21 2025 Valid 231200Z - 241200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER PARTS OF THE UPPER MISSISSIPPI VALLEY TO UPPER GREAT LAKES REGION... ...SUMMARY... A few organizing clusters of storms posing a risk for severe wind and perhaps some hail are possible across parts of the Upper Midwest into adjacent Great Lakes region Wednesday through Wednesday night. ...Discussion... An upper ridge will exist over the eastern CONUS, with a belt of moderate winds aloft from the upper MS Valley and Great Lakes. A surface trough will extend roughly from Lake Superior southwestward into NE, with rich moisture to the south and east. Storms are likely to be ongoing over the upper Great Lakes region early on Wednesday, supported by southwest winds at 850 mb within a theta-e plume. Some of this early activity could product strong wind gusts. Behind this activity, destabilization will occur near the surface trough, and new development is likely during the late afternoon from MN into SD and NE. With only subtle features aloft, this activity will likely develop into clusters of storms with east/southeastward propagation and attendant outflow/severe gust threat. Otherwise, isolated severe cells with hail will be possible over the High Plains over southeast MT, eastern WY and CO, as moisture backs westward into the steeper lapse rate environment. Longer hodographs over MT/WY could support a supercell or two, and this area will be monitored for higher probabilities in later outlooks. ..Jewell.. 07/21/2025 Read more

SPC 1930Z Day 3 Outlook
Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0226 PM CDT Mon Jul 21 2025 Valid 231200Z - 241200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER PARTS OF THE UPPER MISSISSIPPI VALLEY TO UPPER GREAT LAKES REGION... ...SUMMARY... A few organizing clusters of storms posing a risk for severe wind and perhaps some hail are possible across parts of the Upper Midwest into adjacent Great Lakes region Wednesday through Wednesday night. ...Discussion... An upper ridge will exist over the eastern CONUS, with a belt of moderate winds aloft from the upper MS Valley and Great Lakes. A surface trough will extend roughly from Lake Superior southwestward into NE, with rich moisture to the south and east. Storms are likely to be ongoing over the upper Great Lakes region early on Wednesday, supported by southwest winds at 850 mb within a theta-e plume. Some of this early activity could product strong wind gusts. Behind this activity, destabilization will occur near the surface trough, and new development is likely during the late afternoon from MN into SD and NE. With only subtle features aloft, this activity will likely develop into clusters of storms with east/southeastward propagation and attendant outflow/severe gust threat. Otherwise, isolated severe cells with hail will be possible over the High Plains over southeast MT, eastern WY and CO, as moisture backs westward into the steeper lapse rate environment. Longer hodographs over MT/WY could support a supercell or two, and this area will be monitored for higher probabilities in later outlooks. ..Jewell.. 07/21/2025 Read more

SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0217 PM CDT Mon Jul 21 2025 Valid 221200Z - 231200Z No changes are needed to the D2 Fire Weather Outlook. ..Thornton.. 07/21/2025 .PREV DISCUSSION... /ISSUED 0201 AM CDT Mon Jul 21 2025/ ...Synopsis... The upper-level trough in the Northwest will become more diffuse on Tuesday. Mid-level winds will slacken across the Great Basin. A weak surface trough/boundary will remain in northern Nevada. ...Southern/central Nevada... While surface winds will generally be weaker than previous days, the surface pressure gradient near the boundary will support 15-20 mph in portions of southern/central Nevada. RH of 15-20% appears possible during the afternoon. Area fuels remain dry enough to support elevated fire weather conditions. ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0217 PM CDT Mon Jul 21 2025 Valid 221200Z - 231200Z No changes are needed to the D2 Fire Weather Outlook. ..Thornton.. 07/21/2025 .PREV DISCUSSION... /ISSUED 0201 AM CDT Mon Jul 21 2025/ ...Synopsis... The upper-level trough in the Northwest will become more diffuse on Tuesday. Mid-level winds will slacken across the Great Basin. A weak surface trough/boundary will remain in northern Nevada. ...Southern/central Nevada... While surface winds will generally be weaker than previous days, the surface pressure gradient near the boundary will support 15-20 mph in portions of southern/central Nevada. RH of 15-20% appears possible during the afternoon. Area fuels remain dry enough to support elevated fire weather conditions. ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0217 PM CDT Mon Jul 21 2025 Valid 221200Z - 231200Z No changes are needed to the D2 Fire Weather Outlook. ..Thornton.. 07/21/2025 .PREV DISCUSSION... /ISSUED 0201 AM CDT Mon Jul 21 2025/ ...Synopsis... The upper-level trough in the Northwest will become more diffuse on Tuesday. Mid-level winds will slacken across the Great Basin. A weak surface trough/boundary will remain in northern Nevada. ...Southern/central Nevada... While surface winds will generally be weaker than previous days, the surface pressure gradient near the boundary will support 15-20 mph in portions of southern/central Nevada. RH of 15-20% appears possible during the afternoon. Area fuels remain dry enough to support elevated fire weather conditions. ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0217 PM CDT Mon Jul 21 2025 Valid 221200Z - 231200Z No changes are needed to the D2 Fire Weather Outlook. ..Thornton.. 07/21/2025 .PREV DISCUSSION... /ISSUED 0201 AM CDT Mon Jul 21 2025/ ...Synopsis... The upper-level trough in the Northwest will become more diffuse on Tuesday. Mid-level winds will slacken across the Great Basin. A weak surface trough/boundary will remain in northern Nevada. ...Southern/central Nevada... While surface winds will generally be weaker than previous days, the surface pressure gradient near the boundary will support 15-20 mph in portions of southern/central Nevada. RH of 15-20% appears possible during the afternoon. Area fuels remain dry enough to support elevated fire weather conditions. ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0217 PM CDT Mon Jul 21 2025 Valid 221200Z - 231200Z No changes are needed to the D2 Fire Weather Outlook. ..Thornton.. 07/21/2025 .PREV DISCUSSION... /ISSUED 0201 AM CDT Mon Jul 21 2025/ ...Synopsis... The upper-level trough in the Northwest will become more diffuse on Tuesday. Mid-level winds will slacken across the Great Basin. A weak surface trough/boundary will remain in northern Nevada. ...Southern/central Nevada... While surface winds will generally be weaker than previous days, the surface pressure gradient near the boundary will support 15-20 mph in portions of southern/central Nevada. RH of 15-20% appears possible during the afternoon. Area fuels remain dry enough to support elevated fire weather conditions. ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0217 PM CDT Mon Jul 21 2025 Valid 221200Z - 231200Z No changes are needed to the D2 Fire Weather Outlook. ..Thornton.. 07/21/2025 .PREV DISCUSSION... /ISSUED 0201 AM CDT Mon Jul 21 2025/ ...Synopsis... The upper-level trough in the Northwest will become more diffuse on Tuesday. Mid-level winds will slacken across the Great Basin. A weak surface trough/boundary will remain in northern Nevada. ...Southern/central Nevada... While surface winds will generally be weaker than previous days, the surface pressure gradient near the boundary will support 15-20 mph in portions of southern/central Nevada. RH of 15-20% appears possible during the afternoon. Area fuels remain dry enough to support elevated fire weather conditions. ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0217 PM CDT Mon Jul 21 2025 Valid 221200Z - 231200Z No changes are needed to the D2 Fire Weather Outlook. ..Thornton.. 07/21/2025 .PREV DISCUSSION... /ISSUED 0201 AM CDT Mon Jul 21 2025/ ...Synopsis... The upper-level trough in the Northwest will become more diffuse on Tuesday. Mid-level winds will slacken across the Great Basin. A weak surface trough/boundary will remain in northern Nevada. ...Southern/central Nevada... While surface winds will generally be weaker than previous days, the surface pressure gradient near the boundary will support 15-20 mph in portions of southern/central Nevada. RH of 15-20% appears possible during the afternoon. Area fuels remain dry enough to support elevated fire weather conditions. ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0217 PM CDT Mon Jul 21 2025 Valid 221200Z - 231200Z No changes are needed to the D2 Fire Weather Outlook. ..Thornton.. 07/21/2025 .PREV DISCUSSION... /ISSUED 0201 AM CDT Mon Jul 21 2025/ ...Synopsis... The upper-level trough in the Northwest will become more diffuse on Tuesday. Mid-level winds will slacken across the Great Basin. A weak surface trough/boundary will remain in northern Nevada. ...Southern/central Nevada... While surface winds will generally be weaker than previous days, the surface pressure gradient near the boundary will support 15-20 mph in portions of southern/central Nevada. RH of 15-20% appears possible during the afternoon. Area fuels remain dry enough to support elevated fire weather conditions. ...Please see www.spc.noaa.gov/fire for graphic product... Read more