Subj : DAY3SVR: Nws Storm Prediction Center Norman Ok To : wx-storm@lists.illinois.edu From : COD Weather Processor Date : Sat Nov 04 2023 07:24:11 ACUS03 KWNS 040724 SWODY3 SPC AC 040723 Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0223 AM CDT Sat Nov 04 2023 Valid 061200Z - 071200Z ....NO SEVERE THUNDERSTORM AREAS FORECAST... ....SUMMARY... Isolated thunderstorms are possible from the Pacific Northwest into Idaho on Monday. ....Synopsis... A surface low is expected to be over the western Upper MI/western Lake Superior vicinity early Monday morning, with an attendant cold front extending southwestward to another low in central KS. The primary surface low is forecast to progress eastward across northeastern Ontario into southern Quebec, just ahead of its parent shortwave trough. Northern portion of the front will make steady eastward progress with the surface low. However, the southern portion of the front is expected to stall across KS and MO amid persistent low-level moisture return. Low-level convergence will be sustained along this boundary throughout much of the day, with dewpoints south of the boundary approaching 60 deg F. Even so, warm mid-level temperatures are expected to be in place, preventing deep convection and limiting thunderstorm chances. Farther west, a pair of shortwave troughs are expected to progress across the Pacific Northwest. The lead wave is expected to move through the region Monday morning, while the second wave approaches early Tuesday morning. Despite relatively cool surface temperatures and limited low-level moisture, cold mid-level temperatures will help support modest buoyancy from coastal WA/OR into southern ID. Consequently, isolated thunderstorms are possible along the coast throughout much of the period, with a few flashes also possible from eastern OR into southern ID during the afternoon. ...Mosier.. 11/04/2023 $$ = = = 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) .