Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0748 PM CDT Sun Apr 23 2017 Valid 240100Z - 241200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS CENTERED OVER SC... ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS FROM PORTIONS OF SOUTHERN GA TO EXTREME SOUTHERN NC... ...SUMMARY... Strong thunderstorms may still impact parts of Georgia and the Carolinas tonight, accompanied by at least some risk for severe weather. This includes a possibility for a couple of tornadoes near a frontal zone across the piedmont and coastal plain of South Carolina. ...Southeast... Early evening water vapor imagery depicts the center of a pronounced upper low over the northwestern tip of AL in line with latest short-range model guidance. This feature will dig into GA late tonight as strongest flow aloft has yet to round the base of the trough. 00z soundings from JAX and CHS depict modest mid-level lapse rates/deep-layer shear and ongoing convection supports this being somewhat disorganized and not particularly strong. As the trough approaches GA/SC late tonight, shear profiles should increase such that organized sustained updrafts will be more likely, especially within stronger low-level warm advection where LLJ is focused. Will maintain SLGT risk for severe storms centered over SC where a few tornadoes may develop if sustained supercells evolve. ..Darrow.. 04/24/2017Read more
from SPC Forecast Products http://ift.tt/rxAC6Z
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