Subj : DAY2SVR: Nws Storm Prediction Center Norman Ok To : wx-storm@lists.illinois.edu From : COD Weather Processor Date : Mon Dec 08 2025 05:02:41 ACUS02 KWNS 080502 SWODY2 SPC AC 080501 Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1101 PM CST Sun Dec 07 2025 Valid 091200Z - 101200Z ....NO THUNDERSTORM AREAS FORECAST... ....SUMMARY... The risk for thunderstorms appears negligible across the U.S Tuesday through Tuesday night. ....Discussion... While a blocking high to the north of the Aleutians may undergo at least some short-lived suppression, models indicate that a downstream high may become a bit more prominent across the southern mid- to subtropical latitudes of the eastern Pacific during this period. As this occurs, a belt of strong anticyclonic flow is likely to be maintained across much of the eastern mid-latitude Pacific through the northern U.S. intermountain region and Rockies. One of a number of short wave perturbations progressing through this jet is forecast to emerge and contribute to amplifying mid-level troughing as it digs across the northern Great Plains through Upper Midwest, accompanied by a rapidly migrating surface cyclone into the upper Great Lakes by late Tuesday night. It appears that this will be trailed by a gradually consolidating and increasingly significant surface cold intrusion. A notable preceding surface front may remain a focus for thunderstorm development near and south-southeast of the Florida Straits Tuesday into Tuesday night. The trailing flank of this front is forecast to weaken across the southwestern Gulf Basin, and some Gulf boundary-layer modification may commence to the north. However, this is likely to remain rather modest, and an initial low-level offshore flow across the Gulf Coast, veering to an increasing westerly component by Tuesday night, will tend to inhibit inland moistening. ...Kerr.. 12/08/2025 $$ = = = 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 3.28-Linux * Origin: capitolcityonline.net * Telnet/SSH:2022/HTTP (1:2320/105) .