Tag: spc

Official

SPC Feb 19, 2025 Day 4-8 Severe Weather Outlook

Day 4-8 Outlook Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0252 AM CST Wed Feb 19 2025 Valid 221200Z - 271200Z ...DISCUSSION... Persistent surface high pressure across portions of the Southeast and Gulf Coast regions will result in a dearth of boundary layer moisture through at least Day 6/Mon. This will preclude much potential for thunderstorms. By the end of the period, around Days 7-8/Tue-Wed, an upper ridge over the western U.S. will weaken as it shifts east toward the Plains, owing to an upper shortwave trough developing southeast across the Rockies. This will result in lee
Official

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

SPC 0830Z Day 3 Outlook Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0140 AM CST Wed Feb 19 2025 Valid 211200Z - 221200Z ...NO THUNDERSTORM AREAS FORECAST... ...SUMMARY... Thunderstorms are not expected on Friday. ...Synopsis... Strong surface high pressure will persist across much of the CONUS on Friday. Gulf moisture will remain offshore, and the cold/stable boundary layer will preclude thunderstorm activity. ..Leitman.. 02/19/2025 Read more
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SPC Feb 18, 2025 1930 UTC Day 3 Severe Thunderstorm Outlook

SPC 1930Z Day 3 Outlook Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0428 PM CST Tue Feb 18 2025 Valid 201200Z - 211200Z ...NO THUNDERSTORM AREAS FORECAST... ...SUMMARY... Thunderstorms are not expected on Thursday. ...Discussion... In the wake of a cold front exiting the Florida Peninsula, strong surface high pressure (1040+ mb) and an Arctic air mass will settle over much of the CONUS on Thursday. Prevalent cold and stable conditions are expected to considerably limit thunderstorm potential. ..Guyer.. 02/18/2025 Read more
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SPC MD 114

MD 0114 CONCERNING HEAVY SNOW FOR PORTIONS OF SOUTHEASTERN KS...FAR NORTHEASTERN OK AND THE OZARK PLATEAU Mesoscale Discussion 0114 NWS Storm Prediction Center Norman OK 1220 PM CST Tue Feb 18 2025 Areas affected...portions of southeastern KS...far northeastern OK and the Ozark Plateau Concerning...Heavy snow Valid 181820Z - 182345Z SUMMARY...Snowfall rates are expected to increase across portions of eastern KS and the Ozarks over the next few hours. Rates of 1-1.5 in/hr are expected within the heavier banding. DISCUSSION...As of 1820 UTC, regional radar and surface observations showed a broad area of winter precipitation ongoing over the Plains and beginning
Official

SPC Feb 18, 2025 2000 UTC Day 1 Convective Outlook

SPC 2000Z Day 1 Outlook Day 1 Convective Outlook RESENT 2 NWS Storm Prediction Center Norman OK 0341 PM CST Tue Feb 18 2025 Valid 182000Z - 191200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS FOR PARTS OF SOUTHEAST TEXAS INTO SOUTHERN LOUISIANA... ...SUMMARY... Isolated severe thunderstorms remain possible this evening across parts of southeast Texas, shifting across southern Louisiana tonight. Hail should be the primary hazard, but a brief tornado and occasional severe gusts may occur along the immediate Louisiana Coast. ...20Z Update... The previous forecast remains on track. Low-level warm-air and moisture advection are already underway across
Official

SPC Feb 17, 2025 0600 UTC Day 1 Convective Outlook

SPC 1200Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1116 PM CST Sun Feb 16 2025 Valid 171200Z - 181200Z ...NO THUNDERSTORM AREAS FORECAST... ...SUMMARY... No areas of thunderstorm activity are forecast across the CONUS today. ...Discussion... A trough will depart the eastern US today, with zonal flow temporarily settling in across the CONUS. At the surface, a cold front will be moving southward across the Florida peninsula early in the period. A storm or two may linger into the early D1 period along the departing front, however, coverage will remain sparse before quickly