SPC MD 2047

10 months 2 weeks ago
MD 2047 CONCERNING SEVERE POTENTIAL...WATCH UNLIKELY FOR PORTIONS OF SOUTHERN WY...NORTHWESTERN CO...NORTHEASTERN UT...AND FAR WESTERN NE
Mesoscale Discussion 2047 NWS Storm Prediction Center Norman OK 0106 PM CDT Wed Sep 04 2024 Areas affected...portions of southern WY...northwestern CO...northeastern UT...and far western NE Concerning...Severe potential...Watch unlikely Valid 041806Z - 042000Z Probability of Watch Issuance...20 percent SUMMARY...Scattered thunderstorm development is expected this afternoon across southern WY, northern CO, and portions of northeastern UT and far western NE. The strongest storms may pose a threat for local severe wind gusts and small hail. DISCUSSION...Deeper updraft development is underway across the region, predominantly in advance of a mid-level wave progressing eastward through the region. Associated upper-level ventilation is supporting storm maturation across southeastern WY. Convective development is also occurring in northeastern UT, aided by enhanced westerlies aloft and diurnal heating amidst the Uinta Mountains. Continued updraft intensification is expected through the afternoon as the wave propagates eastward through the area and diurnal heating continues to ramp up. Surface conditions are relatively cool across the area in the wake of a cold frontal passage. As such, MLCAPE values are relatively low (around 250-500 J/kg) and some convective inhibition remains. However, diurnal heating will support continued updraft development across the area. Updrafts will be relatively high-based, but steep mid-level lapse rates -- owing to synoptic-scale ascent ahead of the mid-level wave -- could yield MLCAPE around 500-1000 J/kg in some areas. Lengthening, relatively straight hodographs, characterized by bulk shear around 30-40 kts, could support a few more persistent, supercellular structures. Some severe wind gusts and small hail will be the primary threat with these storms through the afternoon. The threat is expected to remain rather localized in nature, and watch issuance is not anticipated at this time. ..Flournoy/Squitieri/Mosier.. 09/04/2024 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...BOU...CYS...RIW...GJT...SLC... LAT...LON 40041022 40911053 42051009 43190817 43250573 42610421 41640359 40310366 39440567 39450839 40041022 Read more

SPC Sep 4, 2024 1930 UTC Day 3 Severe Thunderstorm Outlook

10 months 2 weeks ago
SPC 1930Z Day 3 Outlook
Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0231 PM CDT Wed Sep 04 2024 Valid 061200Z - 071200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe-thunderstorm potential appears relatively low for Friday, though a few strong storms will be possible from near Lake Erie into parts of the Ohio Valley. ...Synopsis... An upper-level trough is forecast to amplify as it digs southeastward across the Great Lakes and Ohio Valley regions on Friday. A mid/upper-level cyclone is forecast to develop with time, as a strong embedded shortwave moves southeastward into the base of the trough by Friday evening. A leading cold front is forecast to slow down and weaken across parts of the Ohio Valley, as a reinforcing front moves through parts of the Great Lakes and Midwest. ...Lake Erie/Ohio Vicinity... Thunderstorms are expected to develop along a cold front Friday afternoon as it moves through the Ohio Valley. Weak lapse rates and a lack of richer low-level moisture will result in only modest instability, but strong forcing ahead of the approaching trough should permit for some stronger storms to develop Friday afternoon. A well-mixed, inverted-v type thermodynamic profile will support some gusty winds. However, the lack of stronger lower tropospheric flow or greater instability will likely preclude a more widespread damaging wind threat. Nonetheless, if greater instability appears possible, severe probabilities may eventually be warranted. ..Bentley.. 09/04/2024 Read more

SPC Sep 4, 2024 1930 UTC Day 3 Severe Thunderstorm Outlook

10 months 2 weeks ago
SPC 1930Z Day 3 Outlook
Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0231 PM CDT Wed Sep 04 2024 Valid 061200Z - 071200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe-thunderstorm potential appears relatively low for Friday, though a few strong storms will be possible from near Lake Erie into parts of the Ohio Valley. ...Synopsis... An upper-level trough is forecast to amplify as it digs southeastward across the Great Lakes and Ohio Valley regions on Friday. A mid/upper-level cyclone is forecast to develop with time, as a strong embedded shortwave moves southeastward into the base of the trough by Friday evening. A leading cold front is forecast to slow down and weaken across parts of the Ohio Valley, as a reinforcing front moves through parts of the Great Lakes and Midwest. ...Lake Erie/Ohio Vicinity... Thunderstorms are expected to develop along a cold front Friday afternoon as it moves through the Ohio Valley. Weak lapse rates and a lack of richer low-level moisture will result in only modest instability, but strong forcing ahead of the approaching trough should permit for some stronger storms to develop Friday afternoon. A well-mixed, inverted-v type thermodynamic profile will support some gusty winds. However, the lack of stronger lower tropospheric flow or greater instability will likely preclude a more widespread damaging wind threat. Nonetheless, if greater instability appears possible, severe probabilities may eventually be warranted. ..Bentley.. 09/04/2024 Read more

SPC Sep 4, 2024 1930 UTC Day 3 Severe Thunderstorm Outlook

10 months 2 weeks ago
SPC 1930Z Day 3 Outlook
Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0231 PM CDT Wed Sep 04 2024 Valid 061200Z - 071200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe-thunderstorm potential appears relatively low for Friday, though a few strong storms will be possible from near Lake Erie into parts of the Ohio Valley. ...Synopsis... An upper-level trough is forecast to amplify as it digs southeastward across the Great Lakes and Ohio Valley regions on Friday. A mid/upper-level cyclone is forecast to develop with time, as a strong embedded shortwave moves southeastward into the base of the trough by Friday evening. A leading cold front is forecast to slow down and weaken across parts of the Ohio Valley, as a reinforcing front moves through parts of the Great Lakes and Midwest. ...Lake Erie/Ohio Vicinity... Thunderstorms are expected to develop along a cold front Friday afternoon as it moves through the Ohio Valley. Weak lapse rates and a lack of richer low-level moisture will result in only modest instability, but strong forcing ahead of the approaching trough should permit for some stronger storms to develop Friday afternoon. A well-mixed, inverted-v type thermodynamic profile will support some gusty winds. However, the lack of stronger lower tropospheric flow or greater instability will likely preclude a more widespread damaging wind threat. Nonetheless, if greater instability appears possible, severe probabilities may eventually be warranted. ..Bentley.. 09/04/2024 Read more

SPC Sep 4, 2024 1930 UTC Day 3 Severe Thunderstorm Outlook

10 months 2 weeks ago
SPC 1930Z Day 3 Outlook
Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0231 PM CDT Wed Sep 04 2024 Valid 061200Z - 071200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe-thunderstorm potential appears relatively low for Friday, though a few strong storms will be possible from near Lake Erie into parts of the Ohio Valley. ...Synopsis... An upper-level trough is forecast to amplify as it digs southeastward across the Great Lakes and Ohio Valley regions on Friday. A mid/upper-level cyclone is forecast to develop with time, as a strong embedded shortwave moves southeastward into the base of the trough by Friday evening. A leading cold front is forecast to slow down and weaken across parts of the Ohio Valley, as a reinforcing front moves through parts of the Great Lakes and Midwest. ...Lake Erie/Ohio Vicinity... Thunderstorms are expected to develop along a cold front Friday afternoon as it moves through the Ohio Valley. Weak lapse rates and a lack of richer low-level moisture will result in only modest instability, but strong forcing ahead of the approaching trough should permit for some stronger storms to develop Friday afternoon. A well-mixed, inverted-v type thermodynamic profile will support some gusty winds. However, the lack of stronger lower tropospheric flow or greater instability will likely preclude a more widespread damaging wind threat. Nonetheless, if greater instability appears possible, severe probabilities may eventually be warranted. ..Bentley.. 09/04/2024 Read more

SPC Sep 4, 2024 1930 UTC Day 3 Severe Thunderstorm Outlook

10 months 2 weeks ago
SPC 1930Z Day 3 Outlook
Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0231 PM CDT Wed Sep 04 2024 Valid 061200Z - 071200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe-thunderstorm potential appears relatively low for Friday, though a few strong storms will be possible from near Lake Erie into parts of the Ohio Valley. ...Synopsis... An upper-level trough is forecast to amplify as it digs southeastward across the Great Lakes and Ohio Valley regions on Friday. A mid/upper-level cyclone is forecast to develop with time, as a strong embedded shortwave moves southeastward into the base of the trough by Friday evening. A leading cold front is forecast to slow down and weaken across parts of the Ohio Valley, as a reinforcing front moves through parts of the Great Lakes and Midwest. ...Lake Erie/Ohio Vicinity... Thunderstorms are expected to develop along a cold front Friday afternoon as it moves through the Ohio Valley. Weak lapse rates and a lack of richer low-level moisture will result in only modest instability, but strong forcing ahead of the approaching trough should permit for some stronger storms to develop Friday afternoon. A well-mixed, inverted-v type thermodynamic profile will support some gusty winds. However, the lack of stronger lower tropospheric flow or greater instability will likely preclude a more widespread damaging wind threat. Nonetheless, if greater instability appears possible, severe probabilities may eventually be warranted. ..Bentley.. 09/04/2024 Read more

SPC Sep 4, 2024 1930 UTC Day 3 Severe Thunderstorm Outlook

10 months 2 weeks ago
SPC 1930Z Day 3 Outlook
Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0231 PM CDT Wed Sep 04 2024 Valid 061200Z - 071200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe-thunderstorm potential appears relatively low for Friday, though a few strong storms will be possible from near Lake Erie into parts of the Ohio Valley. ...Synopsis... An upper-level trough is forecast to amplify as it digs southeastward across the Great Lakes and Ohio Valley regions on Friday. A mid/upper-level cyclone is forecast to develop with time, as a strong embedded shortwave moves southeastward into the base of the trough by Friday evening. A leading cold front is forecast to slow down and weaken across parts of the Ohio Valley, as a reinforcing front moves through parts of the Great Lakes and Midwest. ...Lake Erie/Ohio Vicinity... Thunderstorms are expected to develop along a cold front Friday afternoon as it moves through the Ohio Valley. Weak lapse rates and a lack of richer low-level moisture will result in only modest instability, but strong forcing ahead of the approaching trough should permit for some stronger storms to develop Friday afternoon. A well-mixed, inverted-v type thermodynamic profile will support some gusty winds. However, the lack of stronger lower tropospheric flow or greater instability will likely preclude a more widespread damaging wind threat. Nonetheless, if greater instability appears possible, severe probabilities may eventually be warranted. ..Bentley.. 09/04/2024 Read more

SPC Sep 4, 2024 1730 UTC Day 2 Convective Outlook

10 months 2 weeks ago
SPC 1730Z Day 2 Outlook
Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1218 PM CDT Wed Sep 04 2024 Valid 051200Z - 061200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF NORTHEAST NEW MEXICO.... ...SUMMARY... A few strong to severe storms are possible across portions of northeast New Mexico Thursday afternoon/evening. ...Synopsis... An upper-level trough is forecast to amplify and move southeastward across the Canadian Prairies into the upper Midwest/Great Lakes on Thursday. To the southwest of this amplifying trough, a weakening shortwave is forecast to move southeastward across the central/southern Rockies into the southern High Plains. At the surface, a cold front is forecast to extend southwestward from the Great Lakes into parts of the Midwest and central/southern Plains during the afternoon. ...Southern Rockies and High Plains... A concentrated area of thunderstorms are forecast across northeast New Mexico on Thursday as a sharp mid-level shortwave trough advances southeast across the central/southern Rockies and interacts with a pocket of instability in the post-frontal airmass across northeast New Mexico. Some increasing mid-level flow associated with this trough will overspread the region and provide 20 to 25 knots of deep layer shear. This may be sufficient for some storm organization and the potential for severe-wind gusts. Some small hail is also possible, but relatively modest instability/shear may limit the potential for large hail. ...Parts of the Upper Midwest... Thunderstorms will likely be ongoing at the beginning of the period along the frontal zone in northwest Wisconsin. Expect this activity to wane by mid-morning as the low-level jet weakens. Strong height falls will overspread the cold front by mid to late afternoon which should support additional thunderstorm development along the cold front during the afternoon/early evening. Forecast soundings show limited moisture/instability (less than 1000 J/kg MLCAPE) and modest effective shear (25-30 kts). This could support a few strong to severe storms, but overall, expect the severe-weather threat to remain limited/isolated. ..Bentley.. 09/04/2024 Read more

SPC Sep 4, 2024 1730 UTC Day 2 Convective Outlook

10 months 2 weeks ago
SPC 1730Z Day 2 Outlook
Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1218 PM CDT Wed Sep 04 2024 Valid 051200Z - 061200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF NORTHEAST NEW MEXICO.... ...SUMMARY... A few strong to severe storms are possible across portions of northeast New Mexico Thursday afternoon/evening. ...Synopsis... An upper-level trough is forecast to amplify and move southeastward across the Canadian Prairies into the upper Midwest/Great Lakes on Thursday. To the southwest of this amplifying trough, a weakening shortwave is forecast to move southeastward across the central/southern Rockies into the southern High Plains. At the surface, a cold front is forecast to extend southwestward from the Great Lakes into parts of the Midwest and central/southern Plains during the afternoon. ...Southern Rockies and High Plains... A concentrated area of thunderstorms are forecast across northeast New Mexico on Thursday as a sharp mid-level shortwave trough advances southeast across the central/southern Rockies and interacts with a pocket of instability in the post-frontal airmass across northeast New Mexico. Some increasing mid-level flow associated with this trough will overspread the region and provide 20 to 25 knots of deep layer shear. This may be sufficient for some storm organization and the potential for severe-wind gusts. Some small hail is also possible, but relatively modest instability/shear may limit the potential for large hail. ...Parts of the Upper Midwest... Thunderstorms will likely be ongoing at the beginning of the period along the frontal zone in northwest Wisconsin. Expect this activity to wane by mid-morning as the low-level jet weakens. Strong height falls will overspread the cold front by mid to late afternoon which should support additional thunderstorm development along the cold front during the afternoon/early evening. Forecast soundings show limited moisture/instability (less than 1000 J/kg MLCAPE) and modest effective shear (25-30 kts). This could support a few strong to severe storms, but overall, expect the severe-weather threat to remain limited/isolated. ..Bentley.. 09/04/2024 Read more

SPC Sep 4, 2024 1730 UTC Day 2 Convective Outlook

10 months 2 weeks ago
SPC 1730Z Day 2 Outlook
Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1218 PM CDT Wed Sep 04 2024 Valid 051200Z - 061200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF NORTHEAST NEW MEXICO.... ...SUMMARY... A few strong to severe storms are possible across portions of northeast New Mexico Thursday afternoon/evening. ...Synopsis... An upper-level trough is forecast to amplify and move southeastward across the Canadian Prairies into the upper Midwest/Great Lakes on Thursday. To the southwest of this amplifying trough, a weakening shortwave is forecast to move southeastward across the central/southern Rockies into the southern High Plains. At the surface, a cold front is forecast to extend southwestward from the Great Lakes into parts of the Midwest and central/southern Plains during the afternoon. ...Southern Rockies and High Plains... A concentrated area of thunderstorms are forecast across northeast New Mexico on Thursday as a sharp mid-level shortwave trough advances southeast across the central/southern Rockies and interacts with a pocket of instability in the post-frontal airmass across northeast New Mexico. Some increasing mid-level flow associated with this trough will overspread the region and provide 20 to 25 knots of deep layer shear. This may be sufficient for some storm organization and the potential for severe-wind gusts. Some small hail is also possible, but relatively modest instability/shear may limit the potential for large hail. ...Parts of the Upper Midwest... Thunderstorms will likely be ongoing at the beginning of the period along the frontal zone in northwest Wisconsin. Expect this activity to wane by mid-morning as the low-level jet weakens. Strong height falls will overspread the cold front by mid to late afternoon which should support additional thunderstorm development along the cold front during the afternoon/early evening. Forecast soundings show limited moisture/instability (less than 1000 J/kg MLCAPE) and modest effective shear (25-30 kts). This could support a few strong to severe storms, but overall, expect the severe-weather threat to remain limited/isolated. ..Bentley.. 09/04/2024 Read more

SPC Sep 4, 2024 1730 UTC Day 2 Convective Outlook

10 months 2 weeks ago
SPC 1730Z Day 2 Outlook
Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1218 PM CDT Wed Sep 04 2024 Valid 051200Z - 061200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF NORTHEAST NEW MEXICO.... ...SUMMARY... A few strong to severe storms are possible across portions of northeast New Mexico Thursday afternoon/evening. ...Synopsis... An upper-level trough is forecast to amplify and move southeastward across the Canadian Prairies into the upper Midwest/Great Lakes on Thursday. To the southwest of this amplifying trough, a weakening shortwave is forecast to move southeastward across the central/southern Rockies into the southern High Plains. At the surface, a cold front is forecast to extend southwestward from the Great Lakes into parts of the Midwest and central/southern Plains during the afternoon. ...Southern Rockies and High Plains... A concentrated area of thunderstorms are forecast across northeast New Mexico on Thursday as a sharp mid-level shortwave trough advances southeast across the central/southern Rockies and interacts with a pocket of instability in the post-frontal airmass across northeast New Mexico. Some increasing mid-level flow associated with this trough will overspread the region and provide 20 to 25 knots of deep layer shear. This may be sufficient for some storm organization and the potential for severe-wind gusts. Some small hail is also possible, but relatively modest instability/shear may limit the potential for large hail. ...Parts of the Upper Midwest... Thunderstorms will likely be ongoing at the beginning of the period along the frontal zone in northwest Wisconsin. Expect this activity to wane by mid-morning as the low-level jet weakens. Strong height falls will overspread the cold front by mid to late afternoon which should support additional thunderstorm development along the cold front during the afternoon/early evening. Forecast soundings show limited moisture/instability (less than 1000 J/kg MLCAPE) and modest effective shear (25-30 kts). This could support a few strong to severe storms, but overall, expect the severe-weather threat to remain limited/isolated. ..Bentley.. 09/04/2024 Read more

SPC Sep 4, 2024 1730 UTC Day 2 Convective Outlook

10 months 2 weeks ago
SPC 1730Z Day 2 Outlook
Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1218 PM CDT Wed Sep 04 2024 Valid 051200Z - 061200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF NORTHEAST NEW MEXICO.... ...SUMMARY... A few strong to severe storms are possible across portions of northeast New Mexico Thursday afternoon/evening. ...Synopsis... An upper-level trough is forecast to amplify and move southeastward across the Canadian Prairies into the upper Midwest/Great Lakes on Thursday. To the southwest of this amplifying trough, a weakening shortwave is forecast to move southeastward across the central/southern Rockies into the southern High Plains. At the surface, a cold front is forecast to extend southwestward from the Great Lakes into parts of the Midwest and central/southern Plains during the afternoon. ...Southern Rockies and High Plains... A concentrated area of thunderstorms are forecast across northeast New Mexico on Thursday as a sharp mid-level shortwave trough advances southeast across the central/southern Rockies and interacts with a pocket of instability in the post-frontal airmass across northeast New Mexico. Some increasing mid-level flow associated with this trough will overspread the region and provide 20 to 25 knots of deep layer shear. This may be sufficient for some storm organization and the potential for severe-wind gusts. Some small hail is also possible, but relatively modest instability/shear may limit the potential for large hail. ...Parts of the Upper Midwest... Thunderstorms will likely be ongoing at the beginning of the period along the frontal zone in northwest Wisconsin. Expect this activity to wane by mid-morning as the low-level jet weakens. Strong height falls will overspread the cold front by mid to late afternoon which should support additional thunderstorm development along the cold front during the afternoon/early evening. Forecast soundings show limited moisture/instability (less than 1000 J/kg MLCAPE) and modest effective shear (25-30 kts). This could support a few strong to severe storms, but overall, expect the severe-weather threat to remain limited/isolated. ..Bentley.. 09/04/2024 Read more

SPC Sep 4, 2024 1730 UTC Day 2 Convective Outlook

10 months 2 weeks ago
SPC 1730Z Day 2 Outlook
Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1218 PM CDT Wed Sep 04 2024 Valid 051200Z - 061200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF NORTHEAST NEW MEXICO.... ...SUMMARY... A few strong to severe storms are possible across portions of northeast New Mexico Thursday afternoon/evening. ...Synopsis... An upper-level trough is forecast to amplify and move southeastward across the Canadian Prairies into the upper Midwest/Great Lakes on Thursday. To the southwest of this amplifying trough, a weakening shortwave is forecast to move southeastward across the central/southern Rockies into the southern High Plains. At the surface, a cold front is forecast to extend southwestward from the Great Lakes into parts of the Midwest and central/southern Plains during the afternoon. ...Southern Rockies and High Plains... A concentrated area of thunderstorms are forecast across northeast New Mexico on Thursday as a sharp mid-level shortwave trough advances southeast across the central/southern Rockies and interacts with a pocket of instability in the post-frontal airmass across northeast New Mexico. Some increasing mid-level flow associated with this trough will overspread the region and provide 20 to 25 knots of deep layer shear. This may be sufficient for some storm organization and the potential for severe-wind gusts. Some small hail is also possible, but relatively modest instability/shear may limit the potential for large hail. ...Parts of the Upper Midwest... Thunderstorms will likely be ongoing at the beginning of the period along the frontal zone in northwest Wisconsin. Expect this activity to wane by mid-morning as the low-level jet weakens. Strong height falls will overspread the cold front by mid to late afternoon which should support additional thunderstorm development along the cold front during the afternoon/early evening. Forecast soundings show limited moisture/instability (less than 1000 J/kg MLCAPE) and modest effective shear (25-30 kts). This could support a few strong to severe storms, but overall, expect the severe-weather threat to remain limited/isolated. ..Bentley.. 09/04/2024 Read more

SPC Sep 4, 2024 1730 UTC Day 2 Convective Outlook

10 months 2 weeks ago
SPC 1730Z Day 2 Outlook
Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1218 PM CDT Wed Sep 04 2024 Valid 051200Z - 061200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF NORTHEAST NEW MEXICO.... ...SUMMARY... A few strong to severe storms are possible across portions of northeast New Mexico Thursday afternoon/evening. ...Synopsis... An upper-level trough is forecast to amplify and move southeastward across the Canadian Prairies into the upper Midwest/Great Lakes on Thursday. To the southwest of this amplifying trough, a weakening shortwave is forecast to move southeastward across the central/southern Rockies into the southern High Plains. At the surface, a cold front is forecast to extend southwestward from the Great Lakes into parts of the Midwest and central/southern Plains during the afternoon. ...Southern Rockies and High Plains... A concentrated area of thunderstorms are forecast across northeast New Mexico on Thursday as a sharp mid-level shortwave trough advances southeast across the central/southern Rockies and interacts with a pocket of instability in the post-frontal airmass across northeast New Mexico. Some increasing mid-level flow associated with this trough will overspread the region and provide 20 to 25 knots of deep layer shear. This may be sufficient for some storm organization and the potential for severe-wind gusts. Some small hail is also possible, but relatively modest instability/shear may limit the potential for large hail. ...Parts of the Upper Midwest... Thunderstorms will likely be ongoing at the beginning of the period along the frontal zone in northwest Wisconsin. Expect this activity to wane by mid-morning as the low-level jet weakens. Strong height falls will overspread the cold front by mid to late afternoon which should support additional thunderstorm development along the cold front during the afternoon/early evening. Forecast soundings show limited moisture/instability (less than 1000 J/kg MLCAPE) and modest effective shear (25-30 kts). This could support a few strong to severe storms, but overall, expect the severe-weather threat to remain limited/isolated. ..Bentley.. 09/04/2024 Read more

SPC Day 1 Fire Weather Outlook

10 months 2 weeks ago
SPC Day 1 Fire Weather Outlook
Day 1 Fire Weather Outlook NWS Storm Prediction Center Norman OK 1207 PM CDT Wed Sep 04 2024 Valid 041700Z - 051200Z ...NO CRITICAL AREAS... No changes are needed to the D1 Fire Weather Outlook. See previous discussion below for more information. ..Thornton.. 09/04/2024 .PREV DISCUSSION... /ISSUED 0108 AM CDT Wed Sep 04 2024/ ...Synopsis... Fire weather concerns appear limited for today across the country. Breezy conditions will persist across the central Plains ahead of a migratory surface trough. Low-level moisture has begun to advect northward based on early-morning surface observations, and this trend should continue through the day and modulate afternoon RH minimums over the Plains. Areas of elevated fire weather conditions are possible across central to southern UT as a cold front pushes across the region, but confidence in prolonged/widespread elevated conditions is limited and should occur over fuels that are only modestly receptive. Dry conditions will persist across the Great Basin and West Coast, but a building ridge over the western CONUS will promote weak surface winds and limited fire concerns. ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 1 Fire Weather Outlook

10 months 2 weeks ago
SPC Day 1 Fire Weather Outlook
Day 1 Fire Weather Outlook NWS Storm Prediction Center Norman OK 1207 PM CDT Wed Sep 04 2024 Valid 041700Z - 051200Z ...NO CRITICAL AREAS... No changes are needed to the D1 Fire Weather Outlook. See previous discussion below for more information. ..Thornton.. 09/04/2024 .PREV DISCUSSION... /ISSUED 0108 AM CDT Wed Sep 04 2024/ ...Synopsis... Fire weather concerns appear limited for today across the country. Breezy conditions will persist across the central Plains ahead of a migratory surface trough. Low-level moisture has begun to advect northward based on early-morning surface observations, and this trend should continue through the day and modulate afternoon RH minimums over the Plains. Areas of elevated fire weather conditions are possible across central to southern UT as a cold front pushes across the region, but confidence in prolonged/widespread elevated conditions is limited and should occur over fuels that are only modestly receptive. Dry conditions will persist across the Great Basin and West Coast, but a building ridge over the western CONUS will promote weak surface winds and limited fire concerns. ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 1 Fire Weather Outlook

10 months 2 weeks ago
SPC Day 1 Fire Weather Outlook
Day 1 Fire Weather Outlook NWS Storm Prediction Center Norman OK 1207 PM CDT Wed Sep 04 2024 Valid 041700Z - 051200Z ...NO CRITICAL AREAS... No changes are needed to the D1 Fire Weather Outlook. See previous discussion below for more information. ..Thornton.. 09/04/2024 .PREV DISCUSSION... /ISSUED 0108 AM CDT Wed Sep 04 2024/ ...Synopsis... Fire weather concerns appear limited for today across the country. Breezy conditions will persist across the central Plains ahead of a migratory surface trough. Low-level moisture has begun to advect northward based on early-morning surface observations, and this trend should continue through the day and modulate afternoon RH minimums over the Plains. Areas of elevated fire weather conditions are possible across central to southern UT as a cold front pushes across the region, but confidence in prolonged/widespread elevated conditions is limited and should occur over fuels that are only modestly receptive. Dry conditions will persist across the Great Basin and West Coast, but a building ridge over the western CONUS will promote weak surface winds and limited fire concerns. ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 1 Fire Weather Outlook

10 months 2 weeks ago
SPC Day 1 Fire Weather Outlook
Day 1 Fire Weather Outlook NWS Storm Prediction Center Norman OK 1207 PM CDT Wed Sep 04 2024 Valid 041700Z - 051200Z ...NO CRITICAL AREAS... No changes are needed to the D1 Fire Weather Outlook. See previous discussion below for more information. ..Thornton.. 09/04/2024 .PREV DISCUSSION... /ISSUED 0108 AM CDT Wed Sep 04 2024/ ...Synopsis... Fire weather concerns appear limited for today across the country. Breezy conditions will persist across the central Plains ahead of a migratory surface trough. Low-level moisture has begun to advect northward based on early-morning surface observations, and this trend should continue through the day and modulate afternoon RH minimums over the Plains. Areas of elevated fire weather conditions are possible across central to southern UT as a cold front pushes across the region, but confidence in prolonged/widespread elevated conditions is limited and should occur over fuels that are only modestly receptive. Dry conditions will persist across the Great Basin and West Coast, but a building ridge over the western CONUS will promote weak surface winds and limited fire concerns. ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 1 Fire Weather Outlook

10 months 2 weeks ago
SPC Day 1 Fire Weather Outlook
Day 1 Fire Weather Outlook NWS Storm Prediction Center Norman OK 1207 PM CDT Wed Sep 04 2024 Valid 041700Z - 051200Z ...NO CRITICAL AREAS... No changes are needed to the D1 Fire Weather Outlook. See previous discussion below for more information. ..Thornton.. 09/04/2024 .PREV DISCUSSION... /ISSUED 0108 AM CDT Wed Sep 04 2024/ ...Synopsis... Fire weather concerns appear limited for today across the country. Breezy conditions will persist across the central Plains ahead of a migratory surface trough. Low-level moisture has begun to advect northward based on early-morning surface observations, and this trend should continue through the day and modulate afternoon RH minimums over the Plains. Areas of elevated fire weather conditions are possible across central to southern UT as a cold front pushes across the region, but confidence in prolonged/widespread elevated conditions is limited and should occur over fuels that are only modestly receptive. Dry conditions will persist across the Great Basin and West Coast, but a building ridge over the western CONUS will promote weak surface winds and limited fire concerns. ...Please see www.spc.noaa.gov/fire for graphic product... Read more