Subj : DAY1SVR: Day 1 Convective Outlook To : wx-storm@lists.illinois.edu From : COD Weather Processor Date : Mon Mar 11 2024 12:27:18 ACUS01 KWNS 111227 SWODY1 SPC AC 111225 Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0725 AM CDT Mon Mar 11 2024 Valid 111300Z - 121200Z ....NO SEVERE THUNDERSTORM AREAS FORECAST... ....SUMMARY... Severe thunderstorms are not expected. ....Synopsis/Discussion... A progressive mid/upper-level pattern over the CONUS will lose some amplitude temporarily, as an intense, synoptic-scale cyclone and accompanying trough exit New England and move farther offshore over the Atlantic. While passing over a dry/stable boundary layer left by recent cold-frontal passage, an upstream shortwave trough now over the southern Plains will have no substantive convective consequence, as it moves eastward across the Southeast and weakens. Another in a series of shortwave troughs -- emanating from the base of a persistent larger-scale trough over AK and the Gulf of Alaska -- is moving across the interior Northwest. In the 03Z-06Z time frame, the next in the series should move ashore, followed early on day 2 by yet another. Low/middle-level destabilization preceding each trough should lead to steepening lapse rates, atop a cool, moist marine layer, with minimal MLCINH. Cumulonimbi should result that are relatively shallow, but still potentially capable of extending into lightning-producing icing layers on an isolated basis. As such, a few flashes may be noted near the coast from northwestern OR northward, this evening and overnight. ...Edwards/Jewell.. 03/11/2024 $$ = = = 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 3.20-Linux * Origin: capitolcityonline.net * Telnet/SSH:2022/HTTP (1:2320/105) .