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

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000 FXUS64 KMRX 201910 AFDMRX Area Forecast Discussion National Weather Service Morristown TN 310 PM EDT WED JUL 20 2016 .SHORT TERM...
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(Tonight and Thursday)...May be a stray shower or thunderstorm across mainly Plateau and southern areas this evening...otherwise should be precip free tonight. Atmosphere looks too dry for any convection north Thursday...but may be enough instability south for some isolated convection during the afternoon...so will include slight chance PoPs south. Will continue to be quite hot. Will make some minor tweaks to MAV temps...mostly to bump up Thursday highs. .LONG TERM...(Thursday night through Wednesday)... Mid and upper level high pressure ridge centered over the southern plains states expands Friday and Saturday and continues to be dominant. Late Saturday and Sunday it begins to flatten out a little. Then a cold front will move into the Ohio Valley Monday and Tuesday. After little convective activity friday. Convection will increase late Saturday and again Sunday. Monday through Wednesday rain chances will be highest with the frontal boundary just to the north. Temperatures will stay 5 to possibly 10 degrees above normal. Heat Index values may reach the 100 to 105 range across the southern valley both Saturday and Sunday. Highs Monday through Wednesday with more cloud cover will drop a few degrees but still remain above normal.
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&& .PRELIMINARY POINT TEMPS/POPS...
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Chattanooga Airport, TN 74 97 74 96 / 20 20 10 10 Knoxville McGhee Tyson Airport, TN 70 94 72 93 / 10 10 10 10 Oak Ridge, TN 70 95 72 94 / 10 10 10 10 Tri Cities Airport, TN 63 93 65 90 / 10 10 10 10
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&& .MRX WATCHES/WARNINGS/ADVISORIES... NC...None. TN...None. VA...None. && $$ LW/TD

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