BBS: TELESC.NET.BR Assunto: DAY3SVR: Nws Storm Prediction Center Norman Ok De: COD Weather Processor Data: Mon, 4 May 2026 19:13:17 +0000 ----------------------------------------------------------- ACUS03 KWNS 041913 SWODY3 SPC AC 041912 Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0212 PM CDT Mon May 04 2026 Valid 061200Z - 071200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS FROM EASTERN TEXAS INTO ALABAMA... ...SUMMARY... Scattered strong to severe thunderstorms are expected Wednesday afternoon and evening across portions of Texas into the lower Mississippi and Tennessee Valleys. Damaging winds, large hail, and a couple of tornadoes will be possible. ...Synopsis... A large positive-tilt upper trough will extend from upper Great Lakes into the Southwest, with a broad zone of strong mid to high levels southwesterlies extending from the southern Plains across the lower to middle MS and TN Valleys. Gradual cooling aloft will occur through the period as this upper trough proceeds gradually east. At the surface, a cold front will extend from the upper OH Valley into central TX during the day, and this front will surge south overnight into the southeastern states and southern TX. ...Eastern TX into the TN Valley... A very moist air mass will exist ahead of the cold front, with 70s F dewpoints from TX into AL. Early day storms are likely in the warm advection regime over parts of KY and TN, aided by southwest 850 mb winds around 40 kt. This may temporarily stabilize these northern areas before destabilization occurs later in the day. The strongest heating will occur from TX into MS/AL, with MUCAPE up to 3000 J/kg. The greatest risk area will extend from the Sabine River into MS and northern AL late in the day, perhaps near 00Z, and into the early evening, as storms finally break the capping inversion after a full days heating. Deep-layer shear will be oriented mostly parallel to the front, and low-level winds will be a bit veered with marginal SRH values. Still, supercells may develop owing to strong effective shear, with steep lapse rates aloft supporting hail. Damaging winds may become an issue as storms possibly merge with bowing structures. For northern areas from TN into KY, the risk will depend on air mass recovery in the wake of any early day activity. Conditionally, low-level shear may be stronger in this region, with an isolated tornado or hail risk. ..Jewell.. 05/04/2026 $$ = = = 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]