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

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000 FXUS64 KMRX 150238 AFDMRX Area Forecast Discussion National Weather Service Morristown TN 938 PM EST Wed Feb 14 2018 .DISCUSSION...
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Current radar imagery indicates widespread light rain showers across the area thanks to continued low level warm and moisture advection. A warm front is currently located to the north near the Ohio River. Temperatures should stay steady in the mid 50s throughout the overnight hours. An upper level ridge currently over the Gulf of Mexico will expand to the north tonight. In addition, a 120-140 kt jet will develop later tonight across the Southern Plains into the Great Lakes Region. This will put the area in upper level convergence. These two factors will contribute to decreasing rain chances overnight. However, model soundings indicate that low level moisture will persist with some weak isentropic ascent. Due to this, have included fog and drizzle in the forecast late tonight into Thursday morning.
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&& .PRELIMINARY POINT TEMPS/POPS...
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Chattanooga Airport, TN 57 72 59 63 / 80 20 30 60 Knoxville McGhee Tyson Airport, TN 56 70 59 62 / 80 40 40 80 Oak Ridge, TN 54 70 59 59 / 80 40 40 80 Tri Cities Airport, TN 51 72 54 59 / 80 50 50 80
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&& .MRX WATCHES/WARNINGS/ADVISORIES... NC...None. TN...None. VA...None. && $$

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