Subj : DAY2SVR: Nws Storm Predic To : All From : Mike Powell Date : Wed May 24 2023 15:59:00 ACUS02 KWNS 241726 SWODY2 SPC AC 241724 Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1224 PM CDT Wed May 24 2023 Valid 251200Z - 261200Z ....THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS MUCH OF THE CENTRAL AND SOUTHERN HIGH PLAINS...AND ACROSS PORTIONS OF THE MONTANA VICINITY... ....SUMMARY... Isolated severe thunderstorms are possible across the central and southern High Plains, as well as parts of Montana and adjacent northern Wyoming, on Thursday. ....Central and southern High Plains... As a stagnant/stationary large-scale upper pattern persists, the focus for more active/locally severe storms will remain across the High Plains region Thursday. Presence of ample low-level moisture combined with diurnal heating will again result in afternoon destabilization, and subsequent scattered to isolated storm development. With low-level southeasterly flow beneath moderate mid-level westerlies, shear profiles supporting locally organized/rotating updrafts, and subsequent potential for upscale growth of storms into clusters propagating southeastward toward lower elevations, is apparent. As such, will maintain MRGL risk across the central and southern High Plains region for afternoon and evening convection. ....Central and southern Montana and vicinity... Daytime heating/destabilization is again expected across portions of the northern High Plains/northern Rockies area, as the primary upper trough remains in place just to the west. As multiple small mid-level disturbances continue rotating north-northeastward across the area, areas of scattered afternoon storm development are expected. With moderate mid-level south-southwesterlies aloft, some potential for upscale growth/organization appears to exist, within a zone centered over southern Montana. With potential for locally damaging winds and marginal hail with a couple of the stronger updrafts/clusters, inclusion of 5% wind/hail probabilities appears warranted at this time. ...Goss.. 05/24/2023 $$ --- SBBSecho 3.14-Linux * Origin: Ilink: CCO - capitolcityonline.net (454:1/105) .