BBS: TELESC.NET.BR Assunto: DAY48SVR: Nws Storm Prediction Center Norman Ok De: COD Weather Processor Data: Mon, 18 May 2026 14:00:49 +0000 ----------------------------------------------------------- ACUS48 KWNS 181400 SWOD48 SPC AC 181358 Day 4-8 Convective Outlook RESENT 1 NWS Storm Prediction Center Norman OK 0858 AM CDT Mon May 18 2026 Valid 211200Z - 261200Z ...DISCUSSION... ...D4/Thursday - D5/Friday... On D4/Thursday, a stationary front will extend across the southern Plains and mid Mississippi Valley and east to the Carolinas. A few stronger thunderstorms may develop south of this boundary, however, the strongest upper-level flow will be displaced to the north, limiting confidence in a more organized severe threat. Moist southerly return flow will begin across the southern/central Plains into the weekend. Modest westerly flow across the dryline on D5/Friday may support some potential for severe storms. Overall, forcing for ascent will remain limited and there is low confidence in including a severe risk area at this time. ...D6/Saturday-D8/Monday... Through the end of the extended period, height rises are expected across the central US as a high amplitude ridge settles in from the west. While moisture will continue to move northward into the central/northern Plains, generally weak flow and subsidence will keep severe potential low. ..Thornton.. 05/18/2026 = = = 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]