Tag: spc

SPC 1200Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1142 PM CST Fri Dec 06 2024 Valid 071200Z - 081200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Elevated convection will likely continue across a large portion of Texas on Saturday, with occasional/embedded thunderstorms. No severe weather is expected. ...Discussion... As an upper trough shifts away from New England/across the Canadian Maritimes, a gradual trend toward more zonal flow will occur in the main branch of polar westerlies across the northern CONUS. Farther south, a low within the southern branch of split flow will meander east-northeastward

SPC 1730Z Day 2 Outlook Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1112 AM CST Fri Dec 06 2024 Valid 071200Z - 081200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Scattered thunderstorms are likely across a large portion of Texas on Saturday. No severe thunderstorms are expected. ...Synopsis... The positively tilted upper trough over the southern Rockies and northwest Mexico will shift east over the central/southern Plains on Saturday. Increasing southwesterly mid/upper flow associated with this feature will overspread much of TX toward the Lower MS Valley, aiding in northeast transport of midlevel moisture with time. At the

SPC 1630Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1109 AM CST Fri Dec 06 2024 Valid 061630Z - 071200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe thunderstorms are not expected. Isolated weak thunderstorms are possible today from southeast Arizona and southern New Mexico to East Texas. ...AZ/NM/TX... A weak upper low is centered over southeast AZ this morning, with the subtropical upper jet extending from northern Mexico into TX. Weak large-scale ascent beneath the jet, coupled with increasing low-level warm/moist advection will yield gradually increasing risk of showers and a few widely scattered

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