Subj : DAY3SVR: Nws Storm Prediction Center Norman Ok To : wx-storm@lists.illinois.edu From : COD Weather Processor Date : Fri Jun 27 2025 07:28:05 ACUS03 KWNS 270726 SWODY3 SPC AC 270725 Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0225 AM CDT Fri Jun 27 2025 Valid 291200Z - 301200Z ....THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS FOR FAR SOUTHEAST MINNESOTA INTO THE WESTERN UPPER PENINSULA OF MICHIGAN.... ....SUMMARY... Isolated to scattered strong to severe storms are possible from the central High Plains to the northern Great Lakes on Sunday. ....Synopsis... A mid-level trough will amplify across the northern Plains on Sunday. At the surface, a cold front will move across the Upper Midwest to near northern Lower Michigan to the central Plains by 12Z Monday. ....Central Plains to the Upper Midwest... Very strong to extreme instability is forecast to develop ahead of a cold front from the central Plains to Wisconsin. Storms are expected to develop along this front during the afternoon to evening on Sunday. Shear will be mostly weak along the front which may limit storm organization. However, where stronger mid-level flow is present (central and northern Wisconsin into the western UP of Michigan), more organized storms are expected, including the potential for supercells. These storms will pose a threat for severe wind gusts and large hail, and perhaps a tornado. Farther south and west along the front, weaker shear will be present. However, very strong heating and steep lapse rates will support some severe wind threat as storms develop along the uncapped front during the afternoon/evening on Sunday. ...Bentley.. 06/27/2025 $$ = = = 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) .