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| Mesoscale Discussion 817 | |
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Mesoscale Discussion 0817 NWS Storm Prediction Center Norman OK 0532 PM CDT Fri May 17 2024 Areas affected...Southern Alabama and the Florida Peninsula Concerning...Tornado Watch 254... Valid 172232Z - 180000Z The severe weather threat for Tornado Watch 254 continues. SUMMARY...A few severe thunderstorms are expected to persist through the evening with a threat for all severe hazards. DISCUSSION...A cluster of storms with embedded supercell structures continues to move east along the Alabama/Florida border. The EVX VWP shows around 300 m2/s2 of 0-1 km SRH with a 35 to 40 knot low-level jet. This strengthening low-level flow is also resulting in additional convection developing off the Gulf (which can be seen from Okaloosa to Washington counties around 2230Z. This will likely continue to support a messy storm mode which, combined with very weak low-level lapse rates (per 18Z LIX VWP), are the primary limiting factor to a greater tornado/hail threat. However, given the strong shear present, a tornado threat will continue through the evening, particularly with the lead cell moving through eastern Holmes county at 2230Z. ..Bentley.. 05/17/2024 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...TAE...MOB... LAT...LON 30458804 31158670 31178538 30958470 30678454 30468513 30318596 30288684 30278776 30458804 |
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