SPC Dec 9, 2024 0830 UTC Day 3 Severe Thunderstorm Outlook
SPC 0830Z Day 3 Outlook Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0230 AM CST Mon Dec 09 2024 Valid 111200Z - 121200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated thunderstorms are possible along and ahead of a cold front from the Mid-Atlantic into the Florida Peninsula on Wednesday. ...Synopsis and Discussion... Deep upper troughing is expected to extend from Saskatchewan/western Ontario southward along the length of the MS Valley into the western Gulf early Wednesday morning. A shortwave trough embedded within the base of this larger troughing is forecast to move quickly northeastward from the Lower
SPC Dec 9, 2024 0700 UTC Day 2 Convective Outlook
SPC 0700Z Day 2 Outlook Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1258 AM CST Mon Dec 09 2024 Valid 101200Z - 111200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS PORTIONS OF CENTRAL AND SOUTH AL...SOUTHWEST GA...AND THE ADJACENT FL PANHANDLE... ...SUMMARY... Isolated severe thunderstorms are possible across portions of central and south Alabama, southwest Georgia, and the adjacent Florida Panhandle on Tuesday. ...Synopsis... Deep upper troughing is forecast to extend from central CA into the Southwest/northern Mexico Tuesday. This troughing will be anchored by a shortwave trough expected to move from the southern High
SPC Dec 9, 2024 0600 UTC Day 1 Convective Outlook
SPC 1200Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1150 PM CST Sun Dec 08 2024 Valid 091200Z - 101200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Thunderstorms are possible from the Lower Mississippi Valley into much of the Southeast States today through early Tuesday. The probability for severe thunderstorms appears low. ...Synopsis... A weakening shortwave trough will quickly progress eastward across the lower OH river valley early this morning, and is forecast to exit off the East Coast by afternoon. In its wake, a more amplified upper wave over the Rockies will continue to
SPC Dec 8, 2024 1930 UTC Day 3 Severe Thunderstorm Outlook
SPC 1930Z Day 3 Outlook Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0119 PM CST Sun Dec 08 2024 Valid 101200Z - 111200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS FOR PARTS OF CENTRAL AND SOUTH AL...SOUTHWEST GA...AND THE ADJACENT FL PANHANDLE... ...SUMMARY... Isolated severe thunderstorms are possible across portions of central and south Alabama, southwest Georgia, and the adjacent Florida Panhandle on Tuesday. ...Synopsis... A deep mid/upper-level trough across much of the central/eastern CONUS will begin to shift eastward on Tuesday. This trough will take on a neutral tilt as a significant shortwave moves through
SPC Dec 8, 2024 1730 UTC Day 2 Convective Outlook
SPC 1730Z Day 2 Outlook Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1129 AM CST Sun Dec 08 2024 Valid 091200Z - 101200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Thunderstorms are possible from the Lower Mississippi Valley into much of the Southeast States on Monday. The probability for severe thunderstorms appears low. ...Synopsis... A mid/upper-level trough covering much of the CONUS is forecast to amplify further on Monday, as multiple shortwaves move through the large-scale trough. One shortwave trough is forecast to move quickly from the OH/TN Valley region toward the Mid Atlantic during the day, as
SPC Dec 8, 2024 1630 UTC Day 1 Convective Outlook
SPC 1630Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1013 AM CST Sun Dec 08 2024 Valid 081630Z - 091200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe thunderstorms are not expected through tonight. ...Lower MS Valley... A weak upper low is tracking northeastward across the TX Panhandle today, with the subtropical mid-level jet extending from northern Mexico into the lower MS Valley. Broad large-scale ascent has resulted in periodic episodes of thunderstorms across TX overnight and this morning. This regime is expected to shift eastward today into more of AR/LA and eventually the TN
SPC Dec 8, 2024 0700 UTC Day 2 Convective Outlook
SPC 0700Z Day 2 Outlook Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1253 AM CST Sun Dec 08 2024 Valid 091200Z - 101200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Thunderstorms are possible from the Lower Mississippi Valley into much of the Southeast States on Monday. The probability for severe thunderstorms is low. ...Synopsis and Discussion... The upper pattern is forecast to undergo significant amplification on Monday, resulting in a deep upper trough that is expected to extend across much of the CONUS by Tuesday morning. The initial evolution of this upper trough will begin as a shortwave
SPC Dec 8, 2024 0600 UTC Day 1 Convective Outlook
SPC 1200Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1151 PM CST Sat Dec 07 2024 Valid 081200Z - 091200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Rain/rain showers, and possibly occasional lightning in some areas, will spread across the Lower Mississippi and Tennessee Valleys today. Severe weather is not expected. ...Discussion... An upper low in the southern branch of a split-flow regime across the U.S. will shift eastward across the southern Plains through the day, before devolving into an open wave and accelerating across the Mid and Lower Mississippi Valley and into the Lower
SPC Dec 7, 2024 1930 UTC Day 3 Severe Thunderstorm Outlook
SPC 1930Z Day 3 Outlook Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0121 PM CST Sat Dec 07 2024 Valid 091200Z - 101200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Thunderstorms are possible from the Lower Mississippi Valley into much of Alabama and the Florida Panhandle on Monday. The probability for severe thunderstorms is low. ...Synopsis... A broad mid-level trough will deepen across the central CONUS, encouraging appreciable low-level moisture return across portions of the Lower MS Valley into the Southeast on Monday. The approaching mid-level trough, and increasing low-level flow/advection over the Lower MS Valley, will result
SPC Dec 7, 2024 1730 UTC Day 2 Convective Outlook
SPC 1730Z Day 2 Outlook Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1045 AM CST Sat Dec 07 2024 Valid 081200Z - 091200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Thunderstorms are still possible from southeast Texas into the Lower Mississippi Valley and Mid-South on Sunday. The probability for severe thunderstorms remains very low. ...Synopsis... A mid-level trough will rapidly eject into the Southern Plains and impinge on the TN Valley while preceding a larger upper trough that is poised to overspread the central and northern CONUS tomorrow (Sunday). The approach of the Southern Plains mid-level trough will