Tag: day

Official

SPC Feb 16, 2025 0700 UTC Day 2 Convective Outlook

SPC 0700Z Day 2 Outlook Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1232 AM CST Sun Feb 16 2025 Valid 171200Z - 181200Z ...NO THUNDERSTORM AREAS FORECAST... ...SUMMARY... Lightning potential will remain minimal across the U.S. on Monday. ...Synopsis... Mainly zonal upper flow is expected east of the Rockies on Monday. Strong surface high pressure will stretch from the northern Rockies to the Southeast with a cold and stable boundary-layer precluding thunderstorm activity for much of the CONUS. An upper trough will begin to deepen over the western U.S., and a resulting surface low will deepen over
Official

SPC Feb 16, 2025 0600 UTC Day 1 Convective Outlook

SPC 1200Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1143 PM CST Sat Feb 15 2025 Valid 161200Z - 171200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS IN A PART OF THE SOUTHEAST STATES... ...SUMMARY... Scattered damaging winds and a brief tornado are possible through midday from north Florida to the Savannah River Valley. Isolated damaging winds and a brief tornado are also possible northward into parts of the Lower Mid-Atlantic region through the afternoon. ...FL/GA... An extensive QLCS ongoing from parts of the TN Valley to the central Gulf Coast should reach
Official

SPC Feb 15, 2025 1930 UTC Day 3 Severe Thunderstorm Outlook

SPC 1930Z Day 3 Outlook Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 1237 PM CST Sat Feb 15 2025 Valid 171200Z - 181200Z ...NO THUNDERSTORM AREAS FORECAST... ...SUMMARY... Lightning potential will remain minimal across the U.S. on Monday. ...Discussion... Weakly cyclonic flow aloft will prevail across most of the U.S. Monday. At the surface, cold high pressure will continue ridging southeastward out of the Canadian Prairie, resulting in stable conditions and a general lack of thunder potential. A flash or two cannot be ruled out across portions of the West, as a short-wave trough shifts southeastward out
Official

SPC Feb 15, 2025 1730 UTC Day 2 Convective Outlook

SPC 1730Z Day 2 Outlook Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1124 AM CST Sat Feb 15 2025 Valid 161200Z - 171200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS SOUTHERN GEORGIA...NORTHERN FLORIDA...AND THE EASTERN HALF OF THE FLORIDA PANHANDLE... ...SUMMARY... Locally strong wind gusts are possible Sunday morning, particularly across portions of the Southeast but possibly as far north as the Mid-Atlantic region. ...Synopsis... A vigorous/fast-moving short-wave trough -- embedded in broader cyclonic flow aloft -- will move quickly eastward across the eastern quarter of the U.S. Sunday. As this feature reaches the Atlantic
Official

SPC Feb 15, 2025 1630 UTC Day 1 Convective Outlook

SPC 1630Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1042 AM CST Sat Feb 15 2025 Valid 151630Z - 161200Z ...THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF THE LOWER MISSISSIPPI VALLEY...MID-SOUTH...AND SOUTHEAST... ...SUMMARY... Severe thunderstorms are expected from parts of far east Texas into much of the lower Mississippi Valley and Southeast this afternoon through the overnight. Several tornadoes and scattered to numerous damaging wind gusts should be the primary threats. A few strong tornadoes are also possible. ...Synopsis... Water-vapor imagery this morning shows a potent mid-level trough over the
Official

SPC Feb 15, 2025 0600 UTC Day 1 Convective Outlook

SPC 1200Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1139 PM CST Fri Feb 14 2025 Valid 151200Z - 161200Z ...THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS ACROSS PORTIONS OF THE LOWER MISSISSIPPI VALLEY...MID-SOUTH...AND CENTRAL GULF STATES... ...SUMMARY... Severe weather is expected from East Texas and Mid-South into much of the Southeast. Scattered to numerous damaging wind gusts and a few tornadoes are the primary threats. Storms are expected from late afternoon through the overnight hours. ...Discussion... Strong 500mb jet is currently digging southeast across the lower CO River Valley. This feature is
Official

SPC Feb 14, 2025 1730 UTC Day 2 Convective Outlook

SPC 1730Z Day 2 Outlook Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1120 AM CST Fri Feb 14 2025 Valid 151200Z - 161200Z ...THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS ACROSS NORTHERN LOUISIANA...SOUTHEAST ARKANSAS...MUCH OF MISSISSIPPI...FAR SOUTHWEST TENNESSEE...AND WEST-CENTRAL ALABAMA.... ...SUMMARY... Severe weather is expected from East Texas into much of the Southeast and parts of the Mid-South on Saturday. Scattered to numerous damaging wind gusts and a few tornadoes are the primary threats. Storms are expected from late afternoon through the overnight hours. ...Synopsis... A mid-level trough will traverse from the Southwest Saturday morning to
Official

SPC Feb 14, 2025 1630 UTC Day 1 Convective Outlook

SPC 1630Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1016 AM CST Fri Feb 14 2025 Valid 141630Z - 151200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe thunderstorms are unlikely through tonight across the contiguous United States. ...Synopsis... Water-vapor imagery this morning shows a large-scale upper trough over the West. This feature will amplify through late tonight as a 100-kt 500mb speed max moves through the base of the trough and into northern Sonora and Chihuahua. A belt of strong southwesterly mid-level flow will extend downstream of this upper trough into the southern Great
Official

SPC Feb 14, 2025 1300 UTC Day 1 Convective Outlook

SPC 1300Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0648 AM CST Fri Feb 14 2025 Valid 141300Z - 151200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe thunderstorms are unlikely today and tonight. ...Synopsis and Discussion... A large-scale upper trough over the western CONUS will further amplify today as it moves over the Southwest and southern/central Rockies. In association with this feature and related cold mid-level temperatures, isolated thunderstorms appear possible across parts of the southern Great Basin and Four Corners vicinity. But, overall coverage/intensity of this convection should be limited by meager low-level
Official

SPC Feb 14, 2025 0100 UTC Day 1 Convective Outlook

SPC 0100Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0703 PM CST Thu Feb 13 2025 Valid 140100Z - 141200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS COASTAL SOUTHERN CALIFORNIA... ...SUMMARY... Isolated strong to severe storms may occur this evening across coastal southern California. ...California... Some convectively enhanced wind gusts may occur across coastal southern California this evening in association with a low-topped organized convective line ongoing near the LA Metro area. Local WSR-88D VWP data suggests around 40-50 kt west-southwesterly winds within the lowest 2-3 km AGL, while the 00z observed