BBS: TELESC.NET.BR Assunto: DAY48SVR: Nws Storm Prediction Center Norman Ok De: COD Weather Processor Data: Tue, 26 May 2026 08:40:16 +0000 ----------------------------------------------------------- ACUS48 KWNS 260840 SWOD48 SPC AC 260838 Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0338 AM CDT Tue May 26 2026 Valid 291200Z - 031200Z ...DISCUSSION... An upper low is forecast to be located over the Great Basin on Friday/D4, moving into the northern Rockies/High Plains through Saturday/D5, and weakening all the while. Models indicate 500 mb winds by Saturday will only be in the 20-25 kt range with this feature. Therefore, despite low 60s F dewpoints, the severe risk is expected to be somewhat disorganized. However, at least low probabilities may be required in later outlook updates. Meanwhile, a low-latitude shortwave trough is forecast to move across the southern Plains and into the lower MS Valley, from Saturday/D5 into Sunday/D6. Given the expected very moist air mass in place with 70s F dewpoints, and lack of capping, scattered areas of thunderstorms are likely throughout the period. Much of the activity will occur over TX and OK, where moderate instability is forecast. However, shear will be generally weak. Given the daily cycle of thunderstorms and resulting outflow boundaries across the entire region, predictability is too low to denote any concentrated severe areas. However, sporadic severe winds, perhaps isolated hail, cannot be ruled out from the southern Plains into the lower MS Valley from Saturday/D5 into Monday/D7. ..Jewell.. 05/26/2026 = = = 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]