Tag: convective

SPC 1200Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1137 PM CST Wed Dec 04 2024 Valid 051200Z - 061200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Early day thunderstorms are possible across parts of northern Gulf Coast. No severe thunderstorms are expected. ...Synopsis... A deep upper low within the broader cyclonic flow regime will move quickly from the Great Lakes across the Northeast, with secondary speed max moving southeastward into the mid MS Valley late. Meanwhile, a weaker upper low will meander about northwest MX, just east of the West Coast ridge. At the

SPC 0100Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0657 PM CST Wed Dec 04 2024 Valid 050100Z - 051200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Scattered thunderstorms remain possible through tonight from eastern Texas to the ArkLaMiss. Severe thunderstorms remain unlikely. ...Eastern TX into LA... A few elevated thunderstorms persist this evening over east TX, and primarily north of the warm front. Very little warm sector remains over land, but a small wedge of upper 60s F dewpoints does exist with apex near Liberty, TX. Just to the east, Beaumont is north of

SPC 1730Z Day 2 Outlook Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1117 AM CST Wed Dec 04 2024 Valid 051200Z - 061200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Thunderstorms are possible across parts of south Texas and the central Gulf Coast. No severe thunderstorms are expected. ...Synopsis... A broad upper trough will persist across the eastern CONUS on Thursday. Meanwhile, an upper shortwave trough over the Southwest will deepen and modestly progress eastward, bringing enhanced southwesterly mid/upper flow across the southern Rockies vicinity. At the surface, a cold front will be oriented from southern AL southwestward

SPC 1630Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1023 AM CST Wed Dec 04 2024 Valid 041630Z - 051200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Scattered thunderstorms are expected from North/East Texas to the ArkLaMiss today and tonight. Severe thunderstorms are not currently expected. ...Synopsis... Scattered thunderstorms continue in East Texas and will spread into the ArkLaMiss through the remainder of today/tonight. Ahead of a very weak frontal wave along the middle Texas coast, a narrow zone of surface dewpoints in upper 60s to perhaps low 70s F will have some potential to

SPC 1300Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0658 AM CST Wed Dec 04 2024 Valid 041300Z - 051200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Scattered thunderstorms are expected from North/East Texas to the ArkLaMiss today and tonight. Severe thunderstorms are not currently expected. ...East/Southeast Texas to southwest Louisiana... Widely scattered elevated thunderstorms have developed through the early morning hours across east-central/parts of North Texas, with persistent convection also off the coast of South Texas near a weak surface wave, and into the maritime warm sector where a narrow zone of near 70F/lower

SPC 0100Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0623 PM CST Tue Dec 03 2024 Valid 040100Z - 041200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated thunderstorms will be possible through tonight along the lower/middle Texas Coast into central Texas, but severe thunderstorms are not expected. ...Discussion... An upper high will remain situated over the Pacific Northwest, with a large-scale upper trough from Northern Plains/Great Lakes to the East Coast. A low-latitude wave will move across the Gulf of CA, with modest midlevel flow around 40 kt nosing into southwestern TX by 12Z

SPC 1300Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0659 AM CST Tue Dec 03 2024 Valid 031300Z - 041200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated thunderstorms are possible along the south Texas Coast, but severe thunderstorms are not expected. ...Discussion including South Texas... A persistent longwave trough over the eastern CONUS will be reinforced by an amplifying and southeastward-digging upper trough over the Canadian Prairies toward the Upper Midwest and Great Lakes through tonight. A continued prevalence of surface high pressure and cool/stable continental trajectories will considerably limit and spatially confine thunderstorm

SPC 0100Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0628 PM CST Mon Dec 02 2024 Valid 030100Z - 031200Z ...NO THUNDERSTORM AREAS FORECAST... ...SUMMARY... Threat for lightning is limited tonight. ...01z Update... Notable mid-level short-wave trough is digging southeast across the OH Valley early this evening. Seasonally cool, lower/mid- tropospheric profiles are resulting in steep lapse rates in the lowest 3-4km across much of the Great Lakes. While this is proving favorable for lake convection, lightning within the deeper, most robust updrafts has been limited. While a few strikes can not be ruled

SPC 0700Z Day 2 Outlook Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 0101 AM CST Mon Dec 02 2024 Valid 031200Z - 041200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated thunderstorms are possible along the Texas Coast and into portions of East Texas. No severe thunderstorms are expected. ...Synopsis... An upper-level trough will move off the east coast on Tuesday. Surface high pressure will progress east in its wake with a strong anticyclone moving from the Ozarks to the southern Appalachians through the weekend. Easterly flow across the Gulf of Mexico on the southern periphery of the

SPC 2000Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0134 PM CST Sun Dec 01 2024 Valid 012000Z - 021200Z ...NO THUNDERSTORM AREAS FORECAST... ...SUMMARY... Thunderstorms are not expected through tonight. ...20z Update... No forecast changes are needed; thunderstorm potential over the country remains minimal for today. See the previous discussion for additional details. ..Moore.. 12/01/2024 .PREV DISCUSSION... /ISSUED 1010 AM CST Sun Dec 01 2024/ ...Synopsis and Discussion... Large-scale upper troughing and cyclonic flow aloft will continue to prevail east of the Rockies through the period, while an upper ridge builds over the