Subj : DAY2SVR: Nws Storm Predic To : All From : Mike Powell Date : Thu Aug 01 2024 07:58:00 ACUS02 KWNS 010642 SWODY2 SPC AC 010641 Day 2 Convective Outlook CORR 1 NWS Storm Prediction Center Norman OK 0141 AM CDT Thu Aug 01 2024 Valid 021200Z - 031200Z ....THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS FROM THE OHIO VALLEY TO THE SOUTHEAST AND MID-ATLANTIC... CORRECTED FOR GENERAL THUNDERSTORM LINE FACING THE WRONG DIRECTION ....SUMMARY... Scattered strong to occasionally severe storms are possible on Friday from the Ohio/Tennessee Valley to the Atlantic Coast. ....Synopsis... A upper low across northeast Illinois Friday morning will move slowly east through the day before stalling Friday night in the Upper Ohio Valley. A surface low in the southern Great Lakes region will weaken during the day with a diffuse cold front extending from central Ohio to the Mid-Mississippi Valley. ....Ohio Valley to the Mid-Atlantic and the Southeast... A very moist airmass will remain across the Ohio Valley/Tennessee Valley to the Atlantic Coast on Friday. Therefore, moderate to strong instability is expected across much of the region as temperatures warm into the 90s. Weak height falls, a weak/diffuse cold front, and lee troughing east of the Appalachians will all support widespread thunderstorm activity Friday afternoon/evening. Deep-layer shear will be relatively weak (15 to 20 knots), but the strongly unstable environment and hot/moist boundary layer will support the threat for some strong to severe storms with a primary threat of severe gusts. ....Southern Arizona... Monsoon moisture is forecast to surge northward into southern Arizona on Friday as temperatures warm over 100F. Southeasterly mid-level flow of 15-20 knots around the southern periphery of the mid-level ridge will aid in storm organization and may result a few strong to severe storms. The deeply mixed boundary layer will support a primary threat of severe gusts. If storms can congeal once they move off the higher terrain, higher probabilities may be warranted. ...Bentley.. 08/01/2024 $$ --- SBBSecho 3.20-Linux * Origin: ILink: CCO - capitolcityonline.net (454:3/105) .