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| Mesoscale Discussion 2111 | |
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Mesoscale Discussion 2111 NWS Storm Prediction Center Norman OK 0807 AM CDT Thu Sep 26 2024 Areas affected...Southern and Central Florida Peninsula Concerning...Tornado Watch 683... Valid 261307Z - 261500Z The severe weather threat for Tornado Watch 683 continues. SUMMARY...A tornado threat will continue across the Florida Peninsula this morning, persisting into the early afternoon. DISCUSSION...Hurricane Helene is currently located in the eastern Gulf of Mexico. Several rainbands, with embedded thunderstorms, are located across the eastern Gulf of Mexico extending across the Florida Peninsula. The latest RAP has a pocket of moderate instability across the southern and central Florida Peninsula, with MLCAPE estimated in the 1000 to 2000 J/kg range. This is consistent with the Miami, Florida 12Z sounding, which also has 0-6 km shear in the 30 to 35 knot range, and 0-3 km storm-relative helicity around 300 m2/s2. This environment will continue to be favorable for tornadoes with semi-discrete supercells embedded in the outer rainbands of Hurricane Helene. The tornado threat should continue this morning and into the early afternoon as Hurricane Helene moves northward across the eastern Gulf of Mexico. ..Broyles.. 09/26/2024 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...MFL...MLB...KEY...TBW... LAT...LON 27828021 28368038 28628057 28808105 28838160 28648211 28138236 27308239 26288209 25578157 25188105 25128074 25248039 25598009 26467994 27828021 |
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