Subj : DAY2SVR: Nws Storm Prediction Center Norman Ok To : wx-storm@lists.illinois.edu From : COD Weather Processor Date : Thu Feb 29 2024 06:37:55 ACUS02 KWNS 290637 SWODY2 SPC AC 290636 Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1236 AM CST Thu Feb 29 2024 Valid 011200Z - 021200Z ....NO SEVERE THUNDERSTORM AREAS FORECAST... ....SUMMARY... Severe thunderstorms are not expected on Friday. ....Synopsis... A weak upper shortwave trough will migrate from the Lower MS Valley toward the Mid-Atlantic vicinity on Friday. Only very weak surface low development may occur near or just offshore the central Gulf Coast in response to the upper wave. Most forecast guidance keeps any deeper boundary-layer moisture offshore. Cloud cover will inhibit much warming during the day, along with ongoing showers and thunderstorms. Though modest midlevel lapse rates will reside over the region, surface-based destabilization is not expected and at least a weak low-level inversion is depicted in most forecast soundings. Nevertheless, minor elevated instability will support isolated to scattered thunderstorm activity. Some gusty winds may accompany thunderstorms given strong flow not far above the near-surface layer, but overall severe potential appears low given poor low-level thermodynamics. Across the western U.S., a persistent, broad upper trough will continue to impact the Pacific Northwest vicinity. Strong deep-layers westerly flow will maintain a deep moist layer. Cold temperature aloft will also result in steep lapse rates and sufficient instability to support isolated thunderstorms in orographic ascent along the WA/OR coast and into northern CA. ...Leitman.. 02/29/2024 $$ = = = 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 3.14-Linux * Origin: capitolcityonline.net * Telnet/SSH:2022/HTTP (1:2320/105) .