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

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000 FXUS64 KMRX 281505 AFDMRX AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE MORRISTOWN TN 1105 AM EDT FRI AUG 28 2015 .DISCUSSION...
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PERSISTENT STRATOCUMULUS DECK OVER KCHA AREA THIS MORNING AS RETURN FLOW HAS STARTED...BUT CHANNEL OF MOISTURE PROBABLY NOT STRONG ENOUGH TO HOLD OFF DIURNAL MIXING THAT IS EXPECTED TO SCATTER IT OUT BY EARLY AFTERNOON. SO MAX TEMP AND AFTERNOON SKY COVER PRESENTLY IN FORECAST LOOK FINE. WILL INSERT SOME LOW OPS IN THE MOUNTAINS...GOOD BUILD-UPS ALREADY OVER THE RIDGELINES IN THE SMOKIES...WILL JUST HAVE AS SHOWERS FOR NOW AS CAPE VALUES ARE VERY LOW. WILL NOT EXTEND THESE POPS INTO THE EVENING...AS SURFACE HEATING IS KEY TO DEVELOPMENT...AND ANY DEVELOPING SHOWERS WILL LIKELY FALL APART PRIOR TO SUNSET. STEERING FLOW SHOULD KEEP ANY MOUNTAIN CONVECTION AWAY FROM VALLEY...THIS FLOW ALBEIT WEAK... GENERALLY HAS A WEST-TO-EAST COMPONENT FOR THIS AFTERNOON.
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&& .PRELIMINARY POINT TEMPS/POPS...
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CHATTANOOGA AIRPORT, TN 87 68 86 69 / 0 10 30 30 KNOXVILLE MCGHEE TYSON AIRPORT, TN 85 67 86 66 / 0 10 20 20 OAK RIDGE, TN 86 66 85 67 / 0 10 20 20 TRI CITIES AIRPORT, TN 84 59 84 62 / 0 10 20 20
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&& .MRX WATCHES/WARNINGS/ADVISORIES... NC...NONE. TN...NONE. VA...NONE. && $$ GM

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