Mesoscale Discussion 0441 NWS Storm Prediction Center Norman OK 1038 AM CDT Wed Apr 05 2017 Areas affected...FL Panhandle...GA...Southwest SC Concerning...Severe potential...Watch likely Valid 051538Z - 051715Z Probability of Watch Issuance...95 percent SUMMARY...Tornado Watch will be issued by 17z to address increasing severe threat from the eastern FL Panhandle into SC. DISCUSSION...Boundary-layer cu field is beginning to deepen from the eastern FL Panhandle into southeast GA as surface temperatures rise to near 80F. Latest high-res Vis imagery depicts clustering/towering CU along a corridor from near MAI to near VDI. Substantial breaks in cloud cover suggest additional heating can be expected and thunderstorms will likely evolve over the next few hours. Given the strength of the wind fields and rising instability there is increasing concern for discrete supercell formation by early afternoon. Environmental parameters appear favorable for a few strong tornadoes across this region, in addition to large hail and damaging winds. Tornado watch will be issued for parts of this area by 17z. ..Darrow/Hart.. 04/05/2017 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...CHS...CAE...JAX...FFC...TAE... LAT...LON 31318496 33498250 32908093 31498180 30278426 31318496Read more
from SPC Forecast Products http://ift.tt/HXeNTd
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