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

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000 FXUS64 KMRX 072024 AFDMRX Area Forecast Discussion National Weather Service Morristown TN 324 PM EST Wed Dec 7 2016 .SHORT TERM...
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(Tonight and Thursday)...Weak short wave energy will slide across the area later tonight. Only modest moisture increase with this wave and forcing looks weak. However, may be enough to squeeze out a few light rain/snow showers or at least sprinkles/flurries late tonight into early Thursday. Chances of measurable precip look low, so will go no higher than slight chance PoPs most areas...with low chance PoPs in the eastern mountain areas. Drier air will push in quickly along with colder air on Thursday as an area of surface high pressure build in, so expect a decrease in clouds from west to east during the morning/early afternoon. See no reason to stray far from MAV temps for the short term period. .LONG TERM...(Thursday night through Wednesday)... A few flurries Thursday night and early Friday morning still looks possible as NAM model still showing an increase of moisture between 925-850 mb and enough to produce some flurries in SW VA and the TN mountains. NW winds 10 to 15 mph will make it feel as low as single digits and teens to exposed skin. Actual lows early Friday still expected to be coldest of the season around 10 to 15 higher elevations and 15 to 25 valleys. Highs Friday very cold lower to mid 20s mountains and parts of SW Virginia. Most lower elevation areas will be lower 30s northeast to mid and upper 30s central and southern Tennessee Valley. As ridge of high pressure builds southeast from the northern Plains Friday winds will decrease. Early Saturday temperatures will be about as cold as Friday but winds nearly calm. Saturday warming temperatures in the mid 30s to mid 40s. Saturday night and early Sunday clouds increase ahead of low pressure moving across Great Lakes and then northeast states. As moisture increases early Sunday some light snow or mixed precipitation is possible before changing to rain. Rainfall continues through Monday evening possibly changing to snow by morning. Then Tuesday night and Wednesday another system moves in with cold air producing both rain and snow over the region and colder temperatures to follow by late Wednesday.
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&& .PRELIMINARY POINT TEMPS/POPS...
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Chattanooga Airport, TN 36 48 24 39 / 20 10 10 10 Knoxville McGhee Tyson Airport, TN 33 43 21 34 / 20 10 10 10 Oak Ridge, TN 31 44 21 35 / 20 10 0 0 Tri Cities Airport, TN 32 42 18 33 / 20 10 10 10
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&& .MRX WATCHES/WARNINGS/ADVISORIES... NC...None. TN...None. VA...None. && $$ LW/TD

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