SPC Dec 7, 2024 0600 UTC Day 1 Convective Outlook
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 Dec 6, 2024 0600 UTC Day 1 Convective Outlook
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 Dec 5, 2024 0600 UTC Day 1 Convective Outlook
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 Nov 30, 2024 0600 UTC Day 1 Convective Outlook
SPC 1200Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1123 PM CST Fri Nov 29 2024 Valid 301200Z - 011200Z ...NO THUNDERSTORM AREAS FORECAST... ...SUMMARY... Thunderstorms are not forecast for today. ...Synopsis... Much of the CONUS will remain under the western periphery of a broad mid-level trough, which will reinforce surface high pressure and associated cool surface conditions. Static stability over the CONUS will limit organized thunderstorm potential. A couple of lightning flashes cannot be ruled out over portions of Lakes Erie, Ontario, and immediate adjacent shorelines within lake effect snow bands. However, the
SPC Nov 29, 2024 0600 UTC Day 1 Convective Outlook
SPC 1200Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1136 PM CST Thu Nov 28 2024 Valid 291200Z - 301200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe thunderstorms are not expected today. ...Synopsis... Cyclonic flow aloft will continue to prevail across all but the West Coast States today, with the axis of the primary trough to shift eastward across the eastern third of the country through the period. At the surface, a cold front trailing southward across the western Atlantic from a low initially over the Canadian Maritimes, will move gradually southward across the
SPC Nov 25, 2024 0600 UTC Day 1 Convective Outlook
SPC 1200Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1136 PM CST Sun Nov 24 2024 Valid 251200Z - 261200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated thunderstorms are possible from this afternoon into tonight from Louisiana into parts of the southern Appalachians and Mid-Atlantic. Additional storms may develop near the northern California and Oregon coasts. No severe threat is expected. ...DISCUSSION... A mid-level trough will move eastward across the central U.S. today, as an associated cold front advances southeastward into the Ark-La-Tex and Mid Mississippi Valleys. By evening, the front should be located
SPC Nov 21, 2024 0600 UTC Day 1 Convective Outlook
SPC 1200Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1118 PM CST Wed Nov 20 2024 Valid 211200Z - 221200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... A few thunderstorms are possible across southern New England Thursday morning. ...Southern New England... Strong upper low will shift southeast from the Great Lakes into the upper Ohio Valley by late afternoon. This evolution will encourage low-level warm advection across southern New England as a surface low repositions itself off the middle Atlantic coast, south of Long Island. Forecast soundings suggest weak elevated buoyancy will develop north of