Area Forecast Discussion
Issued by NWS Knoxville/Tri Cities, TN

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000 FXUS64 KMRX 191805 AFDMRX AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE MORRISTOWN TN 200 PM EDT SUN MAY 19 2013 .AVIATION...
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AN UPPER LOW CONTINUES TO SLOWLY TRACK ACROSS THE SOUTHERN APPALACHIAN REGION TODAY. A WEAK BOUNDARY IN PLACE OVER MIDDLE TN TO THE CUMBERLAND PLATEAU AS WELL AS INCREASING INSTABILITY...WILL ALLOW WIDER COVERAGE OF CONVECTION AND ALSO ALLOW FOR A GREATER CHANCE OF STRONG TO SEVERE THUNDERSTORMS THIS AFTERNOON. THE UPPER LOW SHOULD BEGIN TO EXIT THE REGION OVERNIGHT...LEAVING ONLY ISOLATED SHOWERS A POSSIBLY A FEW THUNDERSTORMS MOVING ACROSS THE TAF SITES DURING THE LATER HALF OF THE PERIOD. OVERALL...LOW CLOUDS WILL REMAIN BKN TO OVC AND PREVAILING CONDITIONS WILL BE VFR...BUT EXPECT OCCASIONAL LOWERING OF CIGS AND VSBYS FOR MVFR CONDITIONS.
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&& .MRX WATCHES/WARNINGS/ADVISORIES... NC...NONE. TN...NONE. VA...NONE. && $$ MJB

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