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

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000 FXUS64 KMRX 301715 AFDMRX AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE MORRISTOWN TN 115 PM EDT TUE JUN 30 2015 .AVIATION...UPPER TROUGH IN PLACE OVER THE REGION WITH THE AIR MASS BECOMING AT LEAST MODERATELY UNSTABLE THIS AFTERNOON. LOW LEVEL MOISTURE INCREASING AND CAPE VALUES WILL BE GREATER THE 2000J/KG. ALL THIS WILL AID THUNDERSTORM DEVELOPMENT TODAY. STRONG TO POTENITALLY SEVERE STORMS CAN BE EXPECTED WITH DAMAGING WINDS...LARGE HAIL AND HEAVY RAINFALL THE MAIN THREAT. BEST TIMING FOR THUNRDERSTORMS WILL BE BETWEN 21Z AND 00Z....BUT SOME SCATTERED CONVECTION SHOULD LINGER INTO THE EVENING. OVERNIGHT...CONVECTION SHOULD BE ISOLATED WITH LIMITED COVERAGE AND WILL NOT MENTION IN TAFS FOR NOW. ADDITIONAL CONVECTION IS EXPECTED ON WEDNESDAY BUT GENERALY AFTER 18Z. && .MRX WATCHES/WARNINGS/ADVISORIES... NC...NONE. TN...NONE. VA...NONE. && $$ MJB

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