Subj : MESO: Mesoscale Discussion 2045 To : wx-storm@lists.illinois.edu From : COD Weather Processor Date : Thu Dec 15 2022 15:16:26 ACUS11 KWNS 151516 SWOMCD SPC MCD 151515=20 FLZ000-151645- Mesoscale Discussion 2045 NWS Storm Prediction Center Norman OK 0915 AM CST Thu Dec 15 2022 Areas affected...Parts of the FL Gulf Coast Concerning...Tornado Watch 591... Valid 151515Z - 151645Z The severe weather threat for Tornado Watch 591 continues. SUMMARY...Some increase in the tornado threat is expected through late morning as stronger storms move onshore. DISCUSSION...At 1515 UTC, a thunderstorm cluster is beginning to move onshore near and north of the Tampa Bay vicinity. Embedded supercells within this cluster have occasionally shown moderate low/midlevel rotation over the eastern Gulf of Mexico. Rich low-level moisture, MLCAPE gradually increasing into the 500-1000 J/kg range, and 0-1 km SRH around 300 m2/s2 (per KTBW VWP) will support a tornado threat with any embedded supercells as this cluster of convection moves onshore through late morning. Strong low-level flow will also support the potential for locally strong/damaging gusts with the more intense cells and bowing line segments.=20 Maintenance of favorable wind profiles and gradual heating/moistening will support an expansion of the tornado and damaging-wind threat across the FL Peninsula with time, though widespread cloudiness and generally weak low/midlevel lapse rates may tend to temper the threat to some extent as convection spreads eastward. ...Dean.. 12/15/2022 ....Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!-WC2olkV_A2vPxuovF-c6ERzpPz0TPlaKSdKyYT15e0Fn2eWMCuI6Z9--t2g-gjfn4BUX9q16= k0asbt0V7h1egtZzEg$ for graphic product... ATTN...WFO...TBW...JAX... LAT...LON 28588272 29248303 29428276 29288241 29058214 28558204 27928207 27308210 27068229 27188259 27418274 27828289 28318285 28588272=20 =3D =3D =3D 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) .