Tag: 0600

SPC 1200Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1104 PM CST Wed Dec 11 2024 Valid 121200Z - 131200Z ...NO THUNDERSTORM AREAS FORECAST... ...SUMMARY... The risk for thunderstorms appears negligible across the U.S. today through tonight. ...Synopsis... As significant lower/mid-tropospheric cyclogenesis proceeds across northeastern Quebec, models indicate that large-scale mid-level troughing initially encompassing much of the eastern U.S. will begin to lose amplitude later today through tonight. A couple of digging short wave perturbations may maintain broad deep troughing across the Great Lakes and much of the Northeast; however, low amplitude ridging appears

SPC 1200Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1158 PM CST Tue Dec 10 2024 Valid 111200Z - 121200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS FROM PARTS OF SOUTHERN NEW ENGLAND ALONG THE ATLANTIC COAST SOUTH TO FAR NORTHEASTERN NORTH CAROLINA... ...SUMMARY... Isolated severe thunderstorms are possible today across the East Coast States, as far north as southern New England. The most probable area for a few tornadoes and damaging winds appears to be centered on eastern North Carolina from midday onward. ...Synopsis... South of a closed low over the western

SPC 1200Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1147 PM CST Mon Dec 09 2024 Valid 101200Z - 111200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS THE CENTRAL GULF COAST REGION AND INTO SOUTHWESTERN GEORGIA AND THE FLORIDA PANHANDLE... ...SUMMARY... A few strong to severe thunderstorms are possible across portions of the central Gulf Coast region into southwestern Georgia and the Florida Panhandle today. ...Synopsis... An amplifying upper trough will cross the central third of the U.S. today, taking on weak negative tilt by late in the period as it reaches

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 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 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 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 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