Subj : DAY3SVR: Nws Storm Prediction Center Norman Ok To : wx-storm@lists.illinois.edu From : COD Weather Processor Date : Sat Apr 19 2025 07:16:45 ACUS03 KWNS 190716 SWODY3 SPC AC 190715 Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0215 AM CDT Sat Apr 19 2025 Valid 211200Z - 221200Z ....NO SEVERE THUNDERSTORM AREAS FORECAST... ....SUMMARY... Severe thunderstorm potential appears low on Monday. ....Ohio Valley... An upper shortwave trough over the mid/upper MS Valley will lift east/northeast across the Great Lakes/OH Valley on Monday. A belt of enhanced mid/upper southwesterly flow will overspread much of the Midwest/Ohio Valley ahead of the upper trough. At the surface, low pressure over southern WI will lift northeast into Ontario/Quebec and a trailing cold front will move across the Ohio Valley. A narrow corridor of modest boundary layer moisture will overspread portions of KY/IL/OH/MI ahead of the front. Modest destabilization may allow for isolated diurnal thunderstorm development across the Ohio Valley. Poor lapse rates and weak instability should temper overall severe potential, but a few strong storms may produce gusty winds or small hail. ....Southeast TX to TN Valley... The southwest extent of the Ohio Valley cold front will stall across the region. Large-scale ascent will be nebulous across the region as the main upper shortwave trough continues to lift well to the northeast. Nevertheless, diurnal heating and low to mid 60s F dewpoints along the surface boundary will support isolated thunderstorm development. A few stronger storms could produce gusty winds or small hail, but overall severe potential appears limited given a lack of stronger forcing. ...Leitman.. 04/19/2025 $$ = = = 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 3.20-Linux * Origin: capitolcityonline.net * Telnet/SSH:2022/HTTP (1:2320/105) .