Subj : DAY2SVR: Nws Storm Prediction Center Norman Ok To : wx-storm@lists.illinois.edu From : COD Weather Processor Date : Wed Jan 04 2023 17:10:21 ACUS02 KWNS 041710 SWODY2 SPC AC 041708 Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1108 AM CST Wed Jan 04 2023 Valid 051200Z - 061200Z ....NO SEVERE THUNDERSTORM AREAS FORECAST... ....SUMMARY... Severe thunderstorms are not expected on Thursday. ....Synopsis... A mature mid-latitude cyclone is forecast to be centered near the IA/IL/WI border intersection early Thursday morning. This cyclone is expected to trend more progressive throughout the day, moving eastward across the Great Lakes and into the Northeast. During the same period, a strong shortwave trough (accompanied by a robust mid-level jet streak) will move through the base of the this cyclone. This overall evolution will lead to a deamplification of the upper pattern east of the Rockies, as well as reinforcement of the dry and stable conditions already in place across much of the central/eastern CONUS. This will preclude thunderstorm development in these areas, with the exception of the central FL Peninsula, where a weak, southward-progressing may help initiate a few thunderstorms during the afternoon. Farther west, a deep upper trough will likely extend along the length of the West Coast early Thursday morning. Bifurcation of this upper trough is anticipated throughout the period, as a shortwave trough embedded within the large upper troughing progresses through central and southern CA. By the early Friday morning, this shortwave is expected to extend across the Great Basin into the Lower CO River Valley. Strong forcing for ascent and cold mid-level temperatures will contribute to the potential for isolated lightning strikes across much of central and southern CA. The highest thunderstorm coverage across central CA is expected from Thursday morning into the late afternoon, while the highest coverage across southern CA is expected Thursday afternoon through the evening. ...Mosier.. 01/04/2023 $$ = = = 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) .