Subj : DAY1SVR: Day 1 Convective Outlook To : wx-storm@lists.illinois.edu From : COD Weather Processor Date : Wed Nov 20 2024 04:59:52 ACUS01 KWNS 200459 SWODY1 SPC AC 200458 Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1058 PM CST Tue Nov 19 2024 Valid 201200Z - 211200Z ....NO SEVERE THUNDERSTORM AREAS FORECAST... ....SUMMARY... Severe weather is not expected Today. ....Discussion... An upper low initially over the north-central U.S. is forecast to shift southeastward across the Upper Great Lakes region with time, deepening through the second half of the period. Meanwhile, a second low is forecast to remain off the Pacific Northwest Coast. At the surface, an occluded low will shift across the Upper Great Lakes in tandem with the upper cyclone, while a cold front crosses the Appalachians through the first half of the period. Overnight, the front will move off the Middle and Southern Atlantic Coast, lingering only across southern portions of Florida by the end of the period Thursday morning. With a zone of strong onshore/upslope southwesterly flow across the Pacific Northwest southeast of the offshore upper low, showers and occasional lightning flashes will occur, with lightning potential focused near the Coast Ranges. Showers and embedded thunderstorms will also be possible across the Mid-Atlantic states south to North Carolina, ahead of the advancing surface cold front. Given weak/slightly elevated instability anticipated across this area, severe weather is not expected. Finally, showers and a few thunderstorms are forecast across portions of the Florida Peninsula, but with weak lapse rates and modest flow aloft, severe storms are not anticipated. ...Goss/Wendt.. 11/20/2024 $$ = = = 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) .