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| Mesoscale Discussion 2122 | |
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Mesoscale Discussion 2122 NWS Storm Prediction Center Norman OK 1146 PM CDT Thu Sep 26 2024 Areas affected...northern Florida into the Carolinas Concerning...Tornado Watch 686...687... Valid 270446Z - 270645Z The severe weather threat for Tornado Watch 686, 687 continues. SUMMARY...The environment remains conditionally favorable for supercells producing tornadoes, primary over southeast Georgia into South Carolina. DISCUSSION...Unstable air continues to wrap northwestward ahead of Helene, with the high theta-e air mass now inland across eastern SC and GA. Very strong gusts continue into the Jacksonville FL area within the well-mixed boundary layer where temperatures are in the 80s F. Dewpoints are also averaging 78- 80 F along the coast farther north. While severe cell coverage has decreased compared to a few hours ago, conditions remain quite favorable for tornadoes should additional bands of storms form. This is quite possible through tonight as low-level flow remains confluent. In addition, the high dewpoints will easily favor development with relatively minimal lift. As such, the tornado watch will continue from GA into southern NC for some time. Areas to the south into central FL should eventually see a waning threat as convergence weakens due to the system pulling rapidly north. ..Jewell.. 09/27/2024 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...RAH...ILM...CHS...CAE...MLB...GSP...TBW...JAX... FFC...TAE... LAT...LON 30798131 29768122 28258158 27838200 27628254 27748280 28178285 28728277 29328280 29878249 30448244 30998268 31528316 32148319 32758283 33418224 34238159 34678111 34888007 34767914 34477855 33857838 33507889 33057918 32557994 32148048 31728102 30798131 |
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