BBS: TELESC.NET.BR Assunto: DAY2SVR: Nws Storm Prediction Center Norman Ok De: COD Weather Processor Data: Wed, 27 May 2026 05:26:57 +0000 ----------------------------------------------------------- ACUS02 KWNS 270526 SWODY2 SPC AC 270525 Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1225 AM CDT Wed May 27 2026 Valid 281200Z - 291200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS FROM CENTRAL OREGON INTO EASTERN WASHINGTON...NORTHERN IDAHO AND NORTHWEST MONTANA... ...SUMMARY... Isolated severe storms are possible on Thursday over western Montana, northern Idaho, and into central Oregon/Washington. A few damaging gusts or marginal hail will be possible. ...Synopsis & Discussion... An upper low will move slowly from CA into NV on Thursday, with a leading midlevel speed max forecast to move from UT northward across ID, OR and WA. Cooling aloft will occur along with 40-50 kt 500 mb winds enhancing deep-layer shear. A surface trough will also deepen during the afternoon roughly from UT into eastern WA, with strong heating and steepening lapse rates aiding destabilization. Scattered storms are forecast to develop by early afternoon over central OR, with additional activity extending northeastward across northern ID, eastern WA and northwest MT. Though total CAPE values are questionably high by some models, sufficient instability will exist, along with favorable large-scale ascent and steep lapse rates. This will favor northwestward-moving cells and perhaps a few bows, with at least isolated severe gusts or marginal hail expected. Elsewhere, scattered storms are likely during the afternoon and evening from KS/OK into the Southeast. Winds aloft and shear will be weak across this entire region, and severe storms are largely not expected. Still, sporadic strong gusts cannot be ruled out. ..Jewell.. 05/27/2026 $$ = = = 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]