Subj : DAY3SVR: Nws Storm Prediction Center Norman Ok To : wx-storm@lists.illinois.edu From : COD Weather Processor Date : Wed May 21 2025 07:27:18 ACUS03 KWNS 210726 SWODY3 SPC AC 210725 Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0225 AM CDT Wed May 21 2025 Valid 231200Z - 241200Z ....THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS FOR PORTIONS OF THE CENTRAL PLAINS AND SOUTHEAST FLORIDA... ....SUMMARY... A few strong to severe storms are possible across portions of the central Plains and across southeast Florida. ....Synopsis... Mid-level ridging will shift east from the Rockies to the central Plains on Friday. At the surface, a lee cyclone will develop in the southeast Colorado vicinity. A warm front will expand east from this surface low with a dryline south across the High Plains. ....Central Plains... Mid to upper 60s dewpoints are forecast east of the dryline on Friday afternoon. As temperatures warm, moderate instability will develop across Oklahoma and North Texas. Diurnal convection along the dryline remains questionable due to rising heights aloft and significant inhibition. However, once the nocturnal low-level jet strengthens, scattered convection is likely north of the warm front across the central Plains. Moderate elevated instability and moderate to strong effective shear will support some potential for large hail from this activity. ....Southeast Florida... Cool temperatures aloft (-10C at 500mb) and moderate instability are forecast across the Florida Peninsula on Friday. Thunderstorms are likely along the sea breeze by early afternoon. Moderate deep-layer shear will support the potential for some storm organization, including some rotating updrafts. Large hail and damaging wind gusts will be possible Friday afternoon across southeast Florida. ...Bentley.. 05/21/2025 $$ = = = 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) .