Mesoscale Discussion 0073 NWS Storm Prediction Center Norman OK 0828 PM CST Thu Feb 06 2025 Areas affected...Portions of eastern Tennessee...Kentucky...and far western Virginia Concerning...Severe Thunderstorm Watch 4... Valid 070228Z - 070330Z The severe weather threat for Severe Thunderstorm Watch 4 continues. SUMMARY...Scattered severe thunderstorms will continue to progress eastward across portions of eastern TN over the next hour. Hail up to the size of golf balls, damaging wind gusts exceeding 60 mph, and a tornado or two remain possible. DISCUSSION...Latest radar imagery shows two dominant supercells moving ESE near Rutledge and Knoxville, TN. These right moving storms have exhibited rotation in the lowest levels over the past 30-60 minutes, and are located within a buoyancy axis extending southwest to northeast. This is also where stronger southwest flow just above the surface (40-50 kt) continues to be observed via the MRX VWP, yielding 0-1 km SRH of 300-350 m2/s2. This area of both enhanced instability and low level shear should continue to favor supercells for at least another hour, with a threat of damaging winds, hail, and perhaps a tornado. ..Barnes/Hart.. 02/07/2025 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...GSP...MRX...JKL... LAT...LON 36028452 36138419 36298390 36508376 36728333 36808315 36808288 36708266 36558262 36248261 36008263 35838280 35698311 35648338 35768403 35858426 36028452
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