BBS: TELESC.NET.BR Assunto: DAY3SVR: Nws Storm Prediction Center Norman Ok De: COD Weather Processor Data: Thu, 7 May 2026 19:23:44 +0000 ----------------------------------------------------------- ACUS03 KWNS 071923 SWODY3 SPC AC 071922 Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0222 PM CDT Thu May 07 2026 Valid 091200Z - 101200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF THE SOUTHERN/CENTRAL PLAINS...AND FROM EAST TEXAS INTO THE LOWER MISSISSIPPI VALLEY AND SOUTHEAST... ...SUMMARY... Isolated strong to severe thunderstorms are possible on Saturday across parts of the southern/central Plains, and from east Texas into the lower Mississippi Valley/Southeast. ...Southern/Central Plains... Within large-scale upper troughing encompassing much of the central/eastern CONUS and Canada, a mid-level shortwave trough is forecast to develop southeastward from the northern Rockies/High Plains towards the central High Plains by Saturday evening. Weak lee cyclogenesis should occur over the southern/central High Plains, with modest low-level moisture forecast to return northward across north TX into OK to the east of a surface dryline. High-based convection should develop Saturday afternoon across eastern CO into western KS, with locally gusty winds possible. A somewhat greater severe wind and hail risk should exist late Saturday afternoon and evening across the eastern TX Panhandle, southwest KS, and into OK where weak to locally moderate instability should be in place. There is still a fair amount of uncertainty how far north greater low-level moisture and related instability will advance, but any cells that can form could pose an isolated threat for large hail and damaging winds given sufficient deep-layer shear for modest updraft organization. Have expanded the Marginal Risk a bit in OK and the eastern TX Panhandle to account for potential surface-based development along the dryline, and for a possible cluster/MCS Saturday evening. ...East Texas into the Lower Mississippi Valley/Southeast... Thunderstorms should be ongoing at the start of the period Saturday morning across parts of the lower MS Valley/Southeast. This activity may tend to remain elevated to the north of a surface front through Saturday morning. But, increasing potential for surface-based thunderstorms should exist as daytime heating along/south of the front occurs, and as a weak mid-level shortwave trough advances eastward from east TX into the northern Gulf and vicinity. One or more clusters may eventually evolve and pose some risk for damaging winds as they spread east-southeastward across parts of the lower MS Valley/Southeast through the afternoon and early evening. Isolated severe hail may also occur with somewhat more discrete convection across portions of east TX into LA, where steeper mid-level lapse rates and greater instability are forecast to exist. ..Gleason.. 05/07/2026 $$ = = = To unsubscribe from WX-STORM and you already have a login, go to https://lists.illinois.edu and use the "Unsubscribe" link. Otherwise email Chris Novy at cnovy@cox.net and ask to be removed from WX-STORM. --- SBBSecho 3.28-Linux * Origin: Capitol City Online (1:2320/107) ----------------------------------------------------------- [Voltar]