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 surface, low pressure will exist coincident with the aforementioned northeastern low, while high pressure spreads south across the Plains, and eventually, into the Gulf of Mexico. ...Northern Gulf Coast... Related to the northeastern trough, a cold front will extend south from the low, across the Appalachian Front and toward the northern Gulf Coast where it may be quasi-stationary early this morning. Showers and elevated thunderstorms may be ongoing at that time, but will diminish by midday due to strong drying out of the northwest. Weak instability and poor low-level lapse rates suggest little if any risk of severe weather. ..Jewell/Thornton.. 12/05/2024