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

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000 FXUS64 KMRX 201545 AAA AFDMRX Area Forecast Discussion...UPDATED National Weather Service Morristown TN 1045 AM EST Tue Nov 20 2018 .DISCUSSION...A upper trough axis is moving across the area this morning with colder air aloft helping to steepen the lapse rates. The low-level instability is producing scattered showers. Some of the precipitation will be snow across the highest elevations, generally at or above 4kft. So places like NewFound Gap, Roane Mountain, and High Knob will see some snow showers. Snow accumulations less than 1 inch expected. Have made some minor changes to hourly temperatures and highs given readings are running a couple degrees warmer than forecast. Cold air advection behind frontal boundary will keep temperatures from rising much if any today. Have a great day. && .PRELIMINARY POINT TEMPS/POPS... Chattanooga Airport, TN 51 32 52 34 / 10 0 0 0 Knoxville McGhee Tyson Airport, TN 49 31 50 32 / 20 0 0 0 Oak Ridge, TN 49 31 49 32 / 10 0 0 0 Tri Cities Airport, TN 48 29 47 32 / 30 0 0 0 && .MRX WATCHES/WARNINGS/ADVISORIES... NC...None. TN...None. VA...None. && $$

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