Tag: severe

Official

SPC Jan 20, 2025 0830 UTC Day 3 Severe Thunderstorm Outlook

SPC 0830Z Day 3 Outlook Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 1254 AM CST Mon Jan 20 2025 Valid 221200Z - 231200Z ...NO THUNDERSTORM AREAS FORECAST... ...SUMMARY... Thunderstorms are not forecast on Wednesday. ...Synopsis... An elongated upper trough will exit the East Coast early in the day, as another positive-tilt trough moves into the central CONUS. This trough will extend roughly from the upper Great Lakes into the southern Plains. Meanwhile, an upper ridge will exist along the West Coast, with additional disturbances diving south into the northern Rockies. At the surface, a stable air mass
Official

SPC Jan 19, 2025 1930 UTC Day 3 Severe Thunderstorm Outlook

SPC 1930Z Day 3 Outlook Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0104 PM CST Sun Jan 19 2025 Valid 211200Z - 221200Z ...NO THUNDERSTORM AREAS FORECAST... ...SUMMARY... Thunderstorms are not forecast on Tuesday or Tuesday night. ...Synopsis... Thunderstorm potential largely appears negligible across the CONUS through Tuesday night. An exception could be along the Gulf Coast. Shallow and highly elevated convection, predominately producing sleet at the surface, should be ongoing at 12Z Tuesday along the northwest Gulf Coast. Mid-level lapse rates will be progressively weaker with eastern extent downstream, suggesting that lightning production will likely be
Official

SPC Jan 19, 2025 0830 UTC Day 3 Severe Thunderstorm Outlook

SPC 0830Z Day 3 Outlook Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 1253 AM CST Sun Jan 19 2025 Valid 211200Z - 221200Z ...NO THUNDERSTORM AREAS FORECAST... ...SUMMARY... Thunderstorms are not forecast on Tuesday. On Tuesday, a large upper trough will extend from the upper Great Lakes into the Southwest, and will progress eastward into the Northeast. Meanwhile, another backside speed max will dive southward across the Rockies, while a ridge remains along the West Coast. At the surface, substantial high pressure will be in place from the Great Basin to the East Coast, with dry offshore
Official

SPC Jan 18, 2025 0830 UTC Day 3 Severe Thunderstorm Outlook

SPC 0830Z Day 3 Outlook Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 1118 PM CST Fri Jan 17 2025 Valid 201200Z - 211200Z ...NO THUNDERSTORM AREAS FORECAST... ...SUMMARY... Thunderstorms are not expected Monday into early Tuesday morning. ...Synopsis... A large-scale, mid-upper trough will dominate the CONUS, especially from the Rockies eastward. An associated arctic air mass will have enveloped the majority of the CONUS by Monday, including the southeast Atlantic and Gulf coasts. Thus, moisture/buoyancy will be negligible inland, with no appreciable threat for deep convection/lightning. ..Thompson.. 01/18/2025 Read more
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FEMA Public Assistance Available for Bamberg, Calhoun, Orangeburg Counties Following November Severe Storms and Flooding in South Carolina

FEMA Public Assistance Available for Bamberg, Calhoun, Orangeburg Counties Following November Severe Storms and Flooding in South Carolina COLUMBIA, S.C. – Governmental agencies and certain nonprofits (including faith-based organizations) in Bamberg, Calhoun and Orangeburg counties in South Carolina that were affected by severe storms and flooding of Nov. 6-14, 2024, may be eligible for FEMA Public Assistance. This assistance can help cover costs for debris removal, protective measures, public buildings and equipment, public utilities, and more.  This is a new major disaster declaration and separate from the declaration for Hurricane Helene.   The Public Assistance Program provides federal funding on
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SPC Jan 11, 2025 Day 4-8 Severe Weather Outlook

Day 4-8 Outlook Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0251 AM CST Sat Jan 11 2025 Valid 141200Z - 191200Z ...DISCUSSION... Strong surface high pressure and a dry/stable airmass will envelop much of the CONUS through Day 6/Thu. By the end of the period around Day 7-8/Fri-Sat, medium range guidance indicates a shortwave upper trough may move across the southern Plains and Southeast. As this occurs, a deepening surface cyclone will develop over the southern Plains and shift east. Strengthening southerly low-level flow ahead of the surface low will allow for Gulf moisture to return northward
Official

SPC Jan 10, 2025 Day 4-8 Severe Weather Outlook

Day 4-8 Outlook Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0316 AM CST Fri Jan 10 2025 Valid 131200Z - 181200Z ...DISCUSSION... A broad northwest to westerly mid/upper flow regime will persist across the CONUS for much of the Day 4-8 period. Strong surface high pressure also will dominate much of the forecast period, with continental and offshore low-level trajectories maintaining a dearth of boundary-layer moisture. Thunderstorm activity is expected to remain low through the end of the period given a cold, dry, and stable airmass. Read more
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SPC Jan 10, 2025 0830 UTC Day 3 Severe Thunderstorm Outlook

SPC 0830Z Day 3 Outlook Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0141 AM CST Fri Jan 10 2025 Valid 121200Z - 131200Z ...NO THUNDERSTORM AREAS FORECAST... ...SUMMARY... Thunderstorms are not expected on Sunday. ...Synopsis... Broad upper troughing will envelop much of the CONUS on Sunday. At the surface, a low will move across the Upper Midwest and Great Lakes. A trailing cold front attendant to this low will sweep east-southeast across the Mid and Lower MS Valleys. A secondary surface low is expected over the southern Gulf of Mexico, keeping richer moisture offshore the western/central Gulf
Official

SPC Jan 9, 2025 Day 4-8 Severe Weather Outlook

Day 4-8 Outlook Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0340 AM CST Thu Jan 09 2025 Valid 121200Z - 171200Z ...DISCUSSION... A northwest mid-level flow pattern is forecast to remain in place over the central U.S. throughout the Day 4 to 8 period, as a series of shortwave troughs move southeastward through the flow. The northwesterly flow will help to drive multiple fronts southward into the central and eastern U.S, which will keep a relatively cold and dry airmass in place. For this reason, conditions are not expected to be favorable for thunderstorm development across the