Tag: spc

Official

SPC Mar 26, 2025 0730 UTC Day 3 Severe Thunderstorm Outlook

SPC 0730Z Day 3 Outlook Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0232 AM CDT Wed Mar 26 2025 Valid 281200Z - 291200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS PORTIONS OF THE NEBRASK VICINITY...AND FROM EASTERN TEXAS TO THE LOWER MISSISSIPPI VALLEY... ...SUMMARY... A few strong/severe storms may occur from parts of East Texas to the Lower Mississippi Valley, and also across portions of the Nebraska vicinity overnight. ...Eastern Texas to the Lower Mississippi Valley... Thunderstorms are forecast to be ongoing across eastern portions of the southern Plains, in conjunction with the slow-moving southern-stream
Official

SPC Mar 26, 2025 0600 UTC Day 2 Convective Outlook

SPC 0600Z Day 2 Outlook Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 0113 AM CDT Wed Mar 26 2025 Valid 271200Z - 281200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS PORTIONS OF SOUTHERN TEXAS... ...SUMMARY... Scattered severe thunderstorms are possible Thursday across parts of the southern High Plains, and into southern Texas, as well as over the Lower Missouri/Mid-Mississippi Valleys. ...Southern High Plains across southern Texas... Showers and thunderstorms are forecast to be ongoing early in the period, as a slow-moving southern-stream trough moves eastward across northern Mexico and Texas through the period. Local risk
Official

SPC Mar 26, 2025 0600 UTC Day 1 Convective Outlook

SPC 1200Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1246 AM CDT Wed Mar 26 2025 Valid 261200Z - 271200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS PORTIONS OF THE PACIFIC NORTHWEST... ...SUMMARY... Severe thunderstorms are forecast across parts of the Pacific Northwest this afternoon and evening. Supercells are expected west of the Cascades across Oregon into Washington. These may produce large hail, perhaps a brief tornado, and locally strong gusts. ...Pacific Northwest... Seasonally strong upper low off the Pacific Northwest Coast will shift east today as a 100+kt 500mb speed max
Official

SPC Mar 25, 2025 1930 UTC Day 3 Severe Thunderstorm Outlook

SPC 1930Z Day 3 Outlook Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0221 PM CDT Tue Mar 25 2025 Valid 271200Z - 281200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS IN PARTS OF THE CENTRAL STATES... ...SUMMARY... Isolated severe thunderstorms are possible across south Texas into the Trans-Pecos from Thursday morning to evening, and over the Lower Missouri/Mid-Mississippi Valleys, mainly during the afternoon into Thursday night. ...South TX to the Trans-Pecos... Non-NAM guidance is fairly consistent with extensive deep convection ongoing across parts of south TX at 12Z Thursday, in association with a leading low-amplitude shortwave
Official

SPC MD 262

MD 0262 CONCERNING SEVERE POTENTIAL...WATCH UNLIKELY FOR SOUTHEAST FL PENINSULA Mesoscale Discussion 0262 NWS Storm Prediction Center Norman OK 1255 PM CDT Tue Mar 25 2025 Areas affected...Southeast FL Peninsula Concerning...Severe potential...Watch unlikely Valid 251755Z - 252030Z Probability of Watch Issuance...20 percent SUMMARY...A few strong to locally severe thunderstorms are possible mainly this afternoon into the early evening (3-7pm). DISCUSSION...Water-vapor imagery shows a mid-level vorticity maximum over the shelf waters to the west of the Everglades/Keys moving east over the region this afternoon. Visible-satellite imagery shows a cumulus field destabilizing from near Lake Okeechobee southward, where temperatures have warmed into
Official

SPC Mar 25, 2025 1730 UTC Day 2 Convective Outlook

SPC 1730Z Day 2 Outlook Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1225 PM CDT Tue Mar 25 2025 Valid 261200Z - 271200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS IN PARTS OF THE PACIFIC NORTHWEST... ...SUMMARY... Severe thunderstorms are possible across parts of the Pacific Northwest on Wednesday afternoon and evening. Coverage should be mostly isolated, but a more probable corridor for a few supercells is apparent west of the Cascades. These may produce large hail, a brief tornado, and locally strong gusts. ...Pacific Northwest... Confidence is sufficient for an upgrade to level 2-SLGT risk
Official

SPC Mar 25, 2025 1630 UTC Day 1 Convective Outlook

SPC 1630Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1055 AM CDT Tue Mar 25 2025 Valid 251630Z - 261200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS OVER SOUTHEAST FL...AND OVER PARTS OF SOUTHERN OK AND NORTH-CENTRAL TX.... ...SUMMARY... Gusty winds, along with some risk for hail, will accompany isolated thunderstorms across the southeastern Florida Peninsula, and parts of southeast Oklahoma and northern/central Texas. ...FL... A broad upper trough is present today over the eastern US, with the southern fringe of stronger westerlies across south FL. Ample low-level moisture and strong heating will
Official

SPC Mar 25, 2025 0730 UTC Day 3 Severe Thunderstorm Outlook

SPC 0730Z Day 3 Outlook Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0236 AM CDT Tue Mar 25 2025 Valid 271200Z - 281200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF THE MID MISSOURI VALLEY AND MIDWEST...AND ACROSS PARTS OF WESTERN AND SOUTHERN TEXAS... ...SUMMARY... A few strong/severe storms will be possible Thursday from the Mid Missouri Valley into the Ohio Valley, and across parts of western and southern Texas. ...Synopsis... Deamplification of the upper pattern across the U.S. is expected Thursday, as an eastern U.S. trough departs into the Atlantic, and deamplifying eastern