Severe Storms

SPC 0700Z Day 2 Outlook
Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1254 AM CST Sun Jan 26 2025 Valid 271200Z - 281200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated thunderstorms will be possible on Monday in the lower Mississippi Valley and in southern California, but no severe threat is expected. ...DISCUSSION... A mid-level trough will move across the Ohio and Tennessee Valleys on Monday, as a cold front advances southward across the lower Mississippi Valley. Isolated thunderstorms may be ongoing near the start of the period along or near the front. Further west, a mid-level low will move southward along the coast of southern California. Isolated lightning strikes could occur near the low. No severe threat is expected across the continental U.S. on Monday or Monday night. ..Broyles.. 01/26/2025 Read more

SPC 0700Z Day 2 Outlook
Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1254 AM CST Sun Jan 26 2025 Valid 271200Z - 281200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated thunderstorms will be possible on Monday in the lower Mississippi Valley and in southern California, but no severe threat is expected. ...DISCUSSION... A mid-level trough will move across the Ohio and Tennessee Valleys on Monday, as a cold front advances southward across the lower Mississippi Valley. Isolated thunderstorms may be ongoing near the start of the period along or near the front. Further west, a mid-level low will move southward along the coast of southern California. Isolated lightning strikes could occur near the low. No severe threat is expected across the continental U.S. on Monday or Monday night. ..Broyles.. 01/26/2025 Read more

SPC 0700Z Day 2 Outlook
Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1254 AM CST Sun Jan 26 2025 Valid 271200Z - 281200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated thunderstorms will be possible on Monday in the lower Mississippi Valley and in southern California, but no severe threat is expected. ...DISCUSSION... A mid-level trough will move across the Ohio and Tennessee Valleys on Monday, as a cold front advances southward across the lower Mississippi Valley. Isolated thunderstorms may be ongoing near the start of the period along or near the front. Further west, a mid-level low will move southward along the coast of southern California. Isolated lightning strikes could occur near the low. No severe threat is expected across the continental U.S. on Monday or Monday night. ..Broyles.. 01/26/2025 Read more

SPC 0700Z Day 2 Outlook
Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1254 AM CST Sun Jan 26 2025 Valid 271200Z - 281200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated thunderstorms will be possible on Monday in the lower Mississippi Valley and in southern California, but no severe threat is expected. ...DISCUSSION... A mid-level trough will move across the Ohio and Tennessee Valleys on Monday, as a cold front advances southward across the lower Mississippi Valley. Isolated thunderstorms may be ongoing near the start of the period along or near the front. Further west, a mid-level low will move southward along the coast of southern California. Isolated lightning strikes could occur near the low. No severe threat is expected across the continental U.S. on Monday or Monday night. ..Broyles.. 01/26/2025 Read more

SPC Day 1 Fire Weather Outlook
Day 1 Fire Weather Outlook NWS Storm Prediction Center Norman OK 1239 AM CST Sun Jan 26 2025 Valid 261200Z - 271200Z ...Synopsis... Fire weather concerns will continue across parts of eastern/southeastern Arizona and into far western/southwestern New Mexico for today. 06 UTC surface observations continue to sample a very dry air mass across the southwestern states with dewpoints between -15 to 5 F and nocturnal RH values in the single digits to low teens across much of southern to central AZ. Negligible moisture return into the region will promote another day of widespread 10-15% RH minimums. Aloft, an increasingly pronounced upper low along the central CA coast will gradually shift southward over the next 24 hours, maintaining a broad swath of strong southwesterly winds over AZ. Surface pressure falls will be concentrated across southern CA today resulting in weaker pressure gradient winds - generally around 15 mph - compared to yesterday/Saturday; however, the deep dry layer near the surface will facilitate downward mixing of stronger mid-level winds, resulting in gusts upwards of 25-35 mph by early afternoon. Recent guidance continues to suggest the windiest conditions will reside on the northern slopes of the Mogollon Rim as well as across much of southeast AZ into far southwest NM. Consequently, confidence in sustained elevated fire weather conditions remains highest across these regions where fuels remain receptive amid persistent dry/breezy conditions. ..Moore.. 01/26/2025 ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 1 Fire Weather Outlook
Day 1 Fire Weather Outlook NWS Storm Prediction Center Norman OK 1239 AM CST Sun Jan 26 2025 Valid 261200Z - 271200Z ...Synopsis... Fire weather concerns will continue across parts of eastern/southeastern Arizona and into far western/southwestern New Mexico for today. 06 UTC surface observations continue to sample a very dry air mass across the southwestern states with dewpoints between -15 to 5 F and nocturnal RH values in the single digits to low teens across much of southern to central AZ. Negligible moisture return into the region will promote another day of widespread 10-15% RH minimums. Aloft, an increasingly pronounced upper low along the central CA coast will gradually shift southward over the next 24 hours, maintaining a broad swath of strong southwesterly winds over AZ. Surface pressure falls will be concentrated across southern CA today resulting in weaker pressure gradient winds - generally around 15 mph - compared to yesterday/Saturday; however, the deep dry layer near the surface will facilitate downward mixing of stronger mid-level winds, resulting in gusts upwards of 25-35 mph by early afternoon. Recent guidance continues to suggest the windiest conditions will reside on the northern slopes of the Mogollon Rim as well as across much of southeast AZ into far southwest NM. Consequently, confidence in sustained elevated fire weather conditions remains highest across these regions where fuels remain receptive amid persistent dry/breezy conditions. ..Moore.. 01/26/2025 ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 1 Fire Weather Outlook
Day 1 Fire Weather Outlook NWS Storm Prediction Center Norman OK 1239 AM CST Sun Jan 26 2025 Valid 261200Z - 271200Z ...Synopsis... Fire weather concerns will continue across parts of eastern/southeastern Arizona and into far western/southwestern New Mexico for today. 06 UTC surface observations continue to sample a very dry air mass across the southwestern states with dewpoints between -15 to 5 F and nocturnal RH values in the single digits to low teens across much of southern to central AZ. Negligible moisture return into the region will promote another day of widespread 10-15% RH minimums. Aloft, an increasingly pronounced upper low along the central CA coast will gradually shift southward over the next 24 hours, maintaining a broad swath of strong southwesterly winds over AZ. Surface pressure falls will be concentrated across southern CA today resulting in weaker pressure gradient winds - generally around 15 mph - compared to yesterday/Saturday; however, the deep dry layer near the surface will facilitate downward mixing of stronger mid-level winds, resulting in gusts upwards of 25-35 mph by early afternoon. Recent guidance continues to suggest the windiest conditions will reside on the northern slopes of the Mogollon Rim as well as across much of southeast AZ into far southwest NM. Consequently, confidence in sustained elevated fire weather conditions remains highest across these regions where fuels remain receptive amid persistent dry/breezy conditions. ..Moore.. 01/26/2025 ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 1 Fire Weather Outlook
Day 1 Fire Weather Outlook NWS Storm Prediction Center Norman OK 1239 AM CST Sun Jan 26 2025 Valid 261200Z - 271200Z ...Synopsis... Fire weather concerns will continue across parts of eastern/southeastern Arizona and into far western/southwestern New Mexico for today. 06 UTC surface observations continue to sample a very dry air mass across the southwestern states with dewpoints between -15 to 5 F and nocturnal RH values in the single digits to low teens across much of southern to central AZ. Negligible moisture return into the region will promote another day of widespread 10-15% RH minimums. Aloft, an increasingly pronounced upper low along the central CA coast will gradually shift southward over the next 24 hours, maintaining a broad swath of strong southwesterly winds over AZ. Surface pressure falls will be concentrated across southern CA today resulting in weaker pressure gradient winds - generally around 15 mph - compared to yesterday/Saturday; however, the deep dry layer near the surface will facilitate downward mixing of stronger mid-level winds, resulting in gusts upwards of 25-35 mph by early afternoon. Recent guidance continues to suggest the windiest conditions will reside on the northern slopes of the Mogollon Rim as well as across much of southeast AZ into far southwest NM. Consequently, confidence in sustained elevated fire weather conditions remains highest across these regions where fuels remain receptive amid persistent dry/breezy conditions. ..Moore.. 01/26/2025 ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 1 Fire Weather Outlook
Day 1 Fire Weather Outlook NWS Storm Prediction Center Norman OK 1239 AM CST Sun Jan 26 2025 Valid 261200Z - 271200Z ...Synopsis... Fire weather concerns will continue across parts of eastern/southeastern Arizona and into far western/southwestern New Mexico for today. 06 UTC surface observations continue to sample a very dry air mass across the southwestern states with dewpoints between -15 to 5 F and nocturnal RH values in the single digits to low teens across much of southern to central AZ. Negligible moisture return into the region will promote another day of widespread 10-15% RH minimums. Aloft, an increasingly pronounced upper low along the central CA coast will gradually shift southward over the next 24 hours, maintaining a broad swath of strong southwesterly winds over AZ. Surface pressure falls will be concentrated across southern CA today resulting in weaker pressure gradient winds - generally around 15 mph - compared to yesterday/Saturday; however, the deep dry layer near the surface will facilitate downward mixing of stronger mid-level winds, resulting in gusts upwards of 25-35 mph by early afternoon. Recent guidance continues to suggest the windiest conditions will reside on the northern slopes of the Mogollon Rim as well as across much of southeast AZ into far southwest NM. Consequently, confidence in sustained elevated fire weather conditions remains highest across these regions where fuels remain receptive amid persistent dry/breezy conditions. ..Moore.. 01/26/2025 ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 1 Fire Weather Outlook
Day 1 Fire Weather Outlook NWS Storm Prediction Center Norman OK 1239 AM CST Sun Jan 26 2025 Valid 261200Z - 271200Z ...Synopsis... Fire weather concerns will continue across parts of eastern/southeastern Arizona and into far western/southwestern New Mexico for today. 06 UTC surface observations continue to sample a very dry air mass across the southwestern states with dewpoints between -15 to 5 F and nocturnal RH values in the single digits to low teens across much of southern to central AZ. Negligible moisture return into the region will promote another day of widespread 10-15% RH minimums. Aloft, an increasingly pronounced upper low along the central CA coast will gradually shift southward over the next 24 hours, maintaining a broad swath of strong southwesterly winds over AZ. Surface pressure falls will be concentrated across southern CA today resulting in weaker pressure gradient winds - generally around 15 mph - compared to yesterday/Saturday; however, the deep dry layer near the surface will facilitate downward mixing of stronger mid-level winds, resulting in gusts upwards of 25-35 mph by early afternoon. Recent guidance continues to suggest the windiest conditions will reside on the northern slopes of the Mogollon Rim as well as across much of southeast AZ into far southwest NM. Consequently, confidence in sustained elevated fire weather conditions remains highest across these regions where fuels remain receptive amid persistent dry/breezy conditions. ..Moore.. 01/26/2025 ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC 1200Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1154 PM CST Sat Jan 25 2025 Valid 261200Z - 271200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated to scattered thunderstorms will be possible today into tonight from the Texas Coastal Plain into the lower Mississippi Valley, as well as portions of the central and southern California coastline and adjacent interior areas. No severe threat is expected. ...Discussion... Cool temperatures aloft beneath the upper-level low will continue to support some instability across California. The best instability and thunderstorm potential will be along the coast in central and Southern California where relatively warm ocean waters and greater moisture will lead to somewhat greater instability than farther inland. However, the weak instability will limit any severe weather potential. A persistent low-level jet (~30 knots) will be present across southeast Texas across much of the Gulf Coast states on Sunday and Sunday night with weak isentropic ascent through the period. This will likely result in showers and thunderstorms for much of the period. Despite strong shear (45 to 55 knots), storm organization is expected to be somewhat lacking due to the relatively weak instability. The best chance for an isolated large hail report will be across portions of East Texas where ~500 J/kg MLCAPE is forecast with mid-level lapse rates around 7.5 C/km. However, even in this area, large hail potential remains too low to introduce a Marginal risk. ..Bentley/Moore.. 01/26/2025 Read more

SPC 1200Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1154 PM CST Sat Jan 25 2025 Valid 261200Z - 271200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated to scattered thunderstorms will be possible today into tonight from the Texas Coastal Plain into the lower Mississippi Valley, as well as portions of the central and southern California coastline and adjacent interior areas. No severe threat is expected. ...Discussion... Cool temperatures aloft beneath the upper-level low will continue to support some instability across California. The best instability and thunderstorm potential will be along the coast in central and Southern California where relatively warm ocean waters and greater moisture will lead to somewhat greater instability than farther inland. However, the weak instability will limit any severe weather potential. A persistent low-level jet (~30 knots) will be present across southeast Texas across much of the Gulf Coast states on Sunday and Sunday night with weak isentropic ascent through the period. This will likely result in showers and thunderstorms for much of the period. Despite strong shear (45 to 55 knots), storm organization is expected to be somewhat lacking due to the relatively weak instability. The best chance for an isolated large hail report will be across portions of East Texas where ~500 J/kg MLCAPE is forecast with mid-level lapse rates around 7.5 C/km. However, even in this area, large hail potential remains too low to introduce a Marginal risk. ..Bentley/Moore.. 01/26/2025 Read more

SPC 1200Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1154 PM CST Sat Jan 25 2025 Valid 261200Z - 271200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated to scattered thunderstorms will be possible today into tonight from the Texas Coastal Plain into the lower Mississippi Valley, as well as portions of the central and southern California coastline and adjacent interior areas. No severe threat is expected. ...Discussion... Cool temperatures aloft beneath the upper-level low will continue to support some instability across California. The best instability and thunderstorm potential will be along the coast in central and Southern California where relatively warm ocean waters and greater moisture will lead to somewhat greater instability than farther inland. However, the weak instability will limit any severe weather potential. A persistent low-level jet (~30 knots) will be present across southeast Texas across much of the Gulf Coast states on Sunday and Sunday night with weak isentropic ascent through the period. This will likely result in showers and thunderstorms for much of the period. Despite strong shear (45 to 55 knots), storm organization is expected to be somewhat lacking due to the relatively weak instability. The best chance for an isolated large hail report will be across portions of East Texas where ~500 J/kg MLCAPE is forecast with mid-level lapse rates around 7.5 C/km. However, even in this area, large hail potential remains too low to introduce a Marginal risk. ..Bentley/Moore.. 01/26/2025 Read more

SPC 1200Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1154 PM CST Sat Jan 25 2025 Valid 261200Z - 271200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated to scattered thunderstorms will be possible today into tonight from the Texas Coastal Plain into the lower Mississippi Valley, as well as portions of the central and southern California coastline and adjacent interior areas. No severe threat is expected. ...Discussion... Cool temperatures aloft beneath the upper-level low will continue to support some instability across California. The best instability and thunderstorm potential will be along the coast in central and Southern California where relatively warm ocean waters and greater moisture will lead to somewhat greater instability than farther inland. However, the weak instability will limit any severe weather potential. A persistent low-level jet (~30 knots) will be present across southeast Texas across much of the Gulf Coast states on Sunday and Sunday night with weak isentropic ascent through the period. This will likely result in showers and thunderstorms for much of the period. Despite strong shear (45 to 55 knots), storm organization is expected to be somewhat lacking due to the relatively weak instability. The best chance for an isolated large hail report will be across portions of East Texas where ~500 J/kg MLCAPE is forecast with mid-level lapse rates around 7.5 C/km. However, even in this area, large hail potential remains too low to introduce a Marginal risk. ..Bentley/Moore.. 01/26/2025 Read more

SPC 1200Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1154 PM CST Sat Jan 25 2025 Valid 261200Z - 271200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated to scattered thunderstorms will be possible today into tonight from the Texas Coastal Plain into the lower Mississippi Valley, as well as portions of the central and southern California coastline and adjacent interior areas. No severe threat is expected. ...Discussion... Cool temperatures aloft beneath the upper-level low will continue to support some instability across California. The best instability and thunderstorm potential will be along the coast in central and Southern California where relatively warm ocean waters and greater moisture will lead to somewhat greater instability than farther inland. However, the weak instability will limit any severe weather potential. A persistent low-level jet (~30 knots) will be present across southeast Texas across much of the Gulf Coast states on Sunday and Sunday night with weak isentropic ascent through the period. This will likely result in showers and thunderstorms for much of the period. Despite strong shear (45 to 55 knots), storm organization is expected to be somewhat lacking due to the relatively weak instability. The best chance for an isolated large hail report will be across portions of East Texas where ~500 J/kg MLCAPE is forecast with mid-level lapse rates around 7.5 C/km. However, even in this area, large hail potential remains too low to introduce a Marginal risk. ..Bentley/Moore.. 01/26/2025 Read more

SPC 1200Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1154 PM CST Sat Jan 25 2025 Valid 261200Z - 271200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated to scattered thunderstorms will be possible today into tonight from the Texas Coastal Plain into the lower Mississippi Valley, as well as portions of the central and southern California coastline and adjacent interior areas. No severe threat is expected. ...Discussion... Cool temperatures aloft beneath the upper-level low will continue to support some instability across California. The best instability and thunderstorm potential will be along the coast in central and Southern California where relatively warm ocean waters and greater moisture will lead to somewhat greater instability than farther inland. However, the weak instability will limit any severe weather potential. A persistent low-level jet (~30 knots) will be present across southeast Texas across much of the Gulf Coast states on Sunday and Sunday night with weak isentropic ascent through the period. This will likely result in showers and thunderstorms for much of the period. Despite strong shear (45 to 55 knots), storm organization is expected to be somewhat lacking due to the relatively weak instability. The best chance for an isolated large hail report will be across portions of East Texas where ~500 J/kg MLCAPE is forecast with mid-level lapse rates around 7.5 C/km. However, even in this area, large hail potential remains too low to introduce a Marginal risk. ..Bentley/Moore.. 01/26/2025 Read more

SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0643 PM CST Sat Jan 25 2025 Valid 260100Z - 261200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe thunderstorms are not forecast across the contiguous United States through tonight. ...01Z Update... Occasional lightning flashes have occurred this afternoon/evening across central California. A few lightning flashes could persist this evening as the upper low continues to shift south across the state. 00Z RAOBS from LCH and SHV indicate strong capping remains in place across east Texas into western Louisiana. Expect this capping inversion to remain through much of the overnight period. However, as low-level warm air advection and moistening continues, sufficient elevated instability for a few thunderstorms may develop close to 12Z from east/southeast Texas into northern Louisiana and perhaps southern Arkansas. No severe thunderstorms are expected. ..Bentley.. 01/26/2025 Read more

SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0643 PM CST Sat Jan 25 2025 Valid 260100Z - 261200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe thunderstorms are not forecast across the contiguous United States through tonight. ...01Z Update... Occasional lightning flashes have occurred this afternoon/evening across central California. A few lightning flashes could persist this evening as the upper low continues to shift south across the state. 00Z RAOBS from LCH and SHV indicate strong capping remains in place across east Texas into western Louisiana. Expect this capping inversion to remain through much of the overnight period. However, as low-level warm air advection and moistening continues, sufficient elevated instability for a few thunderstorms may develop close to 12Z from east/southeast Texas into northern Louisiana and perhaps southern Arkansas. No severe thunderstorms are expected. ..Bentley.. 01/26/2025 Read more

SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0643 PM CST Sat Jan 25 2025 Valid 260100Z - 261200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe thunderstorms are not forecast across the contiguous United States through tonight. ...01Z Update... Occasional lightning flashes have occurred this afternoon/evening across central California. A few lightning flashes could persist this evening as the upper low continues to shift south across the state. 00Z RAOBS from LCH and SHV indicate strong capping remains in place across east Texas into western Louisiana. Expect this capping inversion to remain through much of the overnight period. However, as low-level warm air advection and moistening continues, sufficient elevated instability for a few thunderstorms may develop close to 12Z from east/southeast Texas into northern Louisiana and perhaps southern Arkansas. No severe thunderstorms are expected. ..Bentley.. 01/26/2025 Read more

No watches are valid as of Sat Jan 25 22:12:02 UTC 2025.