Tag: dec

SPC 1200Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1147 PM CST Thu Dec 05 2024 Valid 061200Z - 071200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated weak thunderstorms are possible from southeast New Mexico to central Texas today. ...Synopsis and Discussion... The large-scale pattern will begin to change today, with the deep upper trough over the northeastern CONUS lifting into eastern CA through the period. This will result in warming aloft over much of the MS/OH Valleys, Midwest and Great Lakes. To the west, a mean ridge will remain over the Pacific Coast

SPC 1730Z Day 2 Outlook Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1054 AM CST Thu Dec 05 2024 Valid 061200Z - 071200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated to scattered thunderstorms are possible from southeast New Mexico to central Texas. No severe thunderstorms are expected. ...Synopsis... The upper low and attendant trough over AZ and northwest Mexico will slowly pivot eastward on Friday. As modestly enhanced midlevel southwesterly flow overspreads portions of the southern Rockies and TX, midlevel moisture also will increase. Steepening midlevel lapse rates will support weak elevated instability, and isolated thunderstorms are

SPC 1630Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1008 AM CST Thu Dec 05 2024 Valid 051630Z - 061200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe thunderstorms are not expected through tonight. ...Synopsis... A broad and deep upper trough is present today over the eastern CONUS, with widespread stable conditions. The only areas with some risk of thunderstorms will be along the Gulf Coast this afternoon, and in vicinity of southern NM/southwest TX later tonight. In both areas, weak instability will preclude a concern for severe storms. ..Hart/Wendt.. 12/05/2024 Read more

SPC 1300Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0655 AM CST Thu Dec 05 2024 Valid 051300Z - 061200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe thunderstorms are not expected through tonight. ...Discussion... An upper trough will continue to shift quickly east-northeastward today over the Lower Great Lakes and Northeast, with a secondary speed max/clipper-type wave spreading southeastward over Manitoba/northern Ontario toward the Upper Great Lakes tonight. Over the Southwest, an upper low will remain quasi-stationary over the southern Arizona and northwest Mexico vicinity. Along the middle Gulf Coast, a few isolated elevated

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