BBS: TELESC.NET.BR Assunto: DAY48SVR: Nws Storm Prediction Center Norman Ok De: COD Weather Processor Data: Mon, 25 May 2026 08:45:07 +0000 ----------------------------------------------------------- ACUS48 KWNS 250845 SWOD48 SPC AC 250843 Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0343 AM CDT Mon May 25 2026 Valid 281200Z - 021200Z ...DISCUSSION... ...D4/Thursday through D5/Friday... The western low is expected to shift northward again and phase with the northern jet stream D4/Thursday - D5/Friday. There is low confidence in chances for strong to severe storms, pending details on moisture, across the Intermountain West and northern Rockies. Guidance suggests that as the western trough shifts northward and weak disturbances rotate across the Rockies, lee troughing across the Plains may strengthen D5/Friday, bringing a potential for low end severe risk into the central/northern High Plains. For now confidence in any corridors of organized severe risk remain too low. A cold front will sag southward across the east coast D4/Thursday through D5/Friday as enhanced flow digs an upper level trough across Quebec southward into the eastern Great Lakes. Some low end severe potential may accompany this frontal passage each day, but uncertainty remains high in overlap of deep layer shear with better moisture/instability. ...D6/Saturday through D8/Monday... Toward the end of next weekend D7/Sunday through D8/Monday, ensemble guidance is increasing in confidence for a large scale ridge to build in across the central/western US with rising heights and warming temperatures. Building surface high pressure across the Midwest/Great Lakes may shunt moisture southward to the Gulf states. Should this pattern continue to hold, severe potential will remain low through much of the CONUS. ..Thornton.. 05/25/2026 = = = 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]