2:20 PM Update – Severe Thunderstorm Watch for Sumter/Marengo Counties until 9 PM

The SPC has just issued a severe thunderstorm watch, effective until 9 PM this evening, for Sumter and Marengo Counties of southwest central Alabama. Here’s the watch outline:

Screen Shot 2013-09-24 at 2.17.39 PM

SPC Discussion:

DISCUSSION…SW-NE SQLN IN S CNTRL/SE MS EXPECTED TO CONTINUE MAINLY  EWD. STORM DEVELOPMENT WILL BE SUPPORTED BY UPLIFT ALONG EXISTING  COLD POOL …WHERE CONVERGENCE WILL BE MAXIMIZED BETWEEN  DOWNWARD-TRANSPORTED 30-35 KT WLY POST-SQLN FLOW AND SE LOW-LVL  WINDS AHEAD OF THE LINE. VERY MOIST LOW-LVL ENVIRONMENT…CONTINUED  SFC HEATING AHEAD OF THE LINE…AND CONFLUENCE ALONG DIFFUSE WARM  FRONT TO ITS EAST SUGGEST POTENTIAL FOR EMBEDDED LOW AMPLITUDE  BOWS/LEWPS WITH LOCALLY DMGG WIND AND POSSIBLY A TORNADO.

Isaac Williams
WVUA-TV Weather
Twitter: @WVUA_Isaac

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