Subj : DAY1SVR: Day 1 Convective Outlook To : wx-storm@lists.illinois.edu From : COD Weather Processor Date : Mon Oct 09 2023 16:01:47 ACUS01 KWNS 091601 SWODY1 SPC AC 091600 Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1100 AM CDT Mon Oct 09 2023 Valid 091630Z - 101200Z ....NO SEVERE THUNDERSTORM AREAS FORECAST... ....SUMMARY... Severe thunderstorms are not expected through tonight. ....Synopsis... Mid-morning surface observations continue to depict cool and dry conditions across a majority of the country. The broad northwest flow regime over the eastern two-thirds of the CONUS will limit thunderstorm potential and maintain quiescent conditions with the exception of a few regions. Lingering low/mid-level moisture over the Southwest and steep mid-level lapse rates will foster another day of orographically-driven thunderstorms. Weak moisture return into the southern High Plains may support isolated thunderstorms across parts of CO, NM, and the OK/TX Panhandles late this afternoon. Deep boundary-layer mixing may support a few strong downbursts, but confidence in the potential for severe wind is too limited for probabilities. Isolated thunderstorms are also possible this evening/later tonight across the northern Great Basin/northern Rockies as ascent associated with an approaching upper wave overspreads the region. Across the southern FL Panhandle, a few thunderstorms are possible along/south of a stalled frontal boundary. 30-40 knot mid-level flow may support transient storm organization with sufficiently deep/mature convection, but as with previous days, forcing for ascent will likely be too weak/nebulous to support a substantial severe threat over land. ...Moore/Hart.. 10/09/2023 $$ = = = 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 3.14-Linux * Origin: capitolcityonline.net * Telnet/SSH:2022/HTTP (1:2320/105) .