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

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000 FXUS64 KMRX 230654 AFDMRX AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE MORRISTOWN TN 254 AM EDT SAT MAY 23 2015 .SHORT TERM (TODAY AND TONIGHT)...
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HIGH PRESSURE AT THE SURFACE HAS SHIFTED EAST OF THE APPALACHIANS...AND ITS POSITION OVER THE DELMARVA REGION WILL PROVIDE A WEAK SOUTHERLY FLOW IN THE TN VALLEY TODAY. WITH ONLY A FEW CLOUDS EXPECTED AFTER MORNING CIRRUS EXITS...HIGHS WILL REACH INTO THE UPPER 70S AND LOWER 80S FOR THE VALLEY. THE MID TO UPPER LEVEL RIDGE BUILDS OVER THE AREA TONIGHT. A LITTLE CIRRUS MAY BE ROUNDING THE RIDGE...BUT WITH MOSTLY CLEAR SKIES EXPECTED...LOWS WILL BE IN THE 50S FOR MOST SPOTS. .LONG TERM (TOMORROW THROUGH SATURDAY)... RIDGE OF HIGH PRESSURE REMAINS CENTERED OFF THE ATLANTIC COAST OF FLORIDA THROUGH THE FIRST COUPLE OF DAYS OF THE LONG TERM FORECAST. SOME SHORTWAVES PASS AROUND THE HIGH PRESSURE, AND THE MAJORITY OF THE PRECIP SHOULD STAY OFF TO OUR WEST WITH THESE FIRST FEW WAVES OF ENERGY. BUT SOME OF THE NEW MODEL RUNS ARE SUGGESTING THAT AREAS ALONG AND NEAR THE CUMBERLAND PLATEAU COULD SEE SOME CHANCES FOR PRECIPITATION AS EARLY AS MONDAY. BETTER CHANCES FOR MOST PEOPLE IN THE CWA WILL HAVE TO WAIT UNTIL TUESDAY/WEDNESDAY WHEN THE HIGH MOVES FURTHER OFF TO THE EAST ALLOWING MORE OF THE MOISTURE WEST OF THE HIGH/EAST OF THE TROUGH TO MOVE OVER THE AREA.
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&& .PRELIMINARY POINT TEMPS/POPS...
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CHATTANOOGA AIRPORT, TN 82 57 85 67 / 0 0 10 10 KNOXVILLE MCGHEE TYSON AIRPORT, TN 80 56 84 63 / 0 0 0 0 OAK RIDGE, TN 80 55 85 63 / 0 0 10 10 TRI CITIES AIRPORT, TN 79 52 83 55 / 0 0 0 0
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&& .MRX WATCHES/WARNINGS/ADVISORIES... NC...NONE. TN...NONE. VA...NONE. && $$ DGS/ABM

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