Subj : DAY3SVR: Nws Storm Prediction Center Norman Ok To : wx-storm@lists.illinois.edu From : COD Weather Processor Date : Thu Dec 12 2024 08:20:22 ACUS03 KWNS 120820 SWODY3 SPC AC 120819 Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0219 AM CST Thu Dec 12 2024 Valid 141200Z - 151200Z ....NO SEVERE THUNDERSTORM AREAS FORECAST... ....SUMMARY... Isolated thunderstorms are possible from the Texas Hill Country into the Middle/Lower Mississippi Valley on Saturday. ....Synopsis and Discussion... A stacked mid-latitude cyclone is forecast to be over the central Plains early Saturday morning before progressing northeastward throughout the day and ending the period over the Mid MS Valley. This cyclone will be accompanied by strong mid-level jet throughout its base, which will spread from OK northeastward across MO and into the Lower OH Valley as the cyclone moves northeastward. This overall evolution will displace this cyclone and associated ascent well north of the better low-level moisture, which is expected to remain confined largely to the TX and LA coasts throughout the day. Even so, a strong low-level jet is anticipated throughout the warm sector of this cyclone, and the associated warm-air advection will likely result in elevated showers and thunderstorms. Elevated thunderstorms will likely be ongoing at the beginning of the period from east TX into the Lower MO Valley. This is area expected is shift eastward throughout the day with gradually diminishing storm coverage. Limited buoyancy should temper updraft strength, but vertical shear is strong enough to support small-hail production within the deepest, most persistent updrafts. An additional northwestward push of greater low-level moisture into more of the TX Hill Country is possible late Saturday/early Sunday ahead of another shortwave trough approaching the Four Corners. A few isolated thunderstorms may occur over the TX Hill Country as this returning moisture interacts with increasing low-level flow. ...Mosier.. 12/12/2024 $$ = = = 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) .