Subj : DAY2SVR: Nws Storm Prediction Center Norman Ok To : wx-storm@lists.illinois.edu From : COD Weather Processor Date : Fri Dec 09 2022 07:03:23 ACUS02 KWNS 090703 SWODY2 SPC AC 090701 Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 0101 AM CST Fri Dec 09 2022 Valid 101200Z - 111200Z ....NO SEVERE THUNDERSTORM AREAS FORECAST... ....SUMMARY... Appreciable severe-weather risk is not apparent over the U.S. on Saturday. ....Discussion... As an eastern Pacific upper trough digs southeastward toward the West Coast Saturday, a weak lead wave is expected to shift east-northeastward across the Desert Southwest and adjacent northern Mexico through the day, and then into/across the southern Plains overnight. As this occurs, a weak/remnant surface baroclinic zone extending from Texas into the central Gulf Coast states will eventually begin advancing slowly southeastward across Texas. Showers are expected to expand across the western U.S. ahead of the advancing trough, with greatest potential for any embedded lightning still most likely across portions of the Oregon/northern California coasts. Across the southern Plains and into the Tennessee/Lower Mississippi Valleys, showers and occasional thunderstorms are expected during the period, in the vicinity of the aforementioned weak frontal zone. With time, increasing southeasterly low-level flow across eastern/southeastern Texas, advecting Gulf moisture northward and contributing to an increase in both low-level and deep-layer shear, suggests an environment that may become minimally supportive of weakly rotating showers and isolated thunderstorms. At this time, any tornado potential later in the period across portions of this area appears too low to highlight with a 2%/MRGL area. ...Goss.. 12/09/2022 $$ = = = 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) .