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

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000 FXUS64 KMRX 012018 AFDMRX Area Forecast Discussion National Weather Service Morristown TN 318 PM EST Thu Dec 1 2016 .SHORT TERM /Tonight and Friday/...
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Quiet weather continues across the region this afternoon, with high pressure in control. The mostly clear sky across the region will continue overnight, allowing temperatures to drop quickly after sunset. Lows will bottom out the upper 20s to lower 30s in most valley spots by morning, leaving a nice coating of frost on the grass. Another sunny and dry day is expected on Friday, with winds shifting slightly to the west and northwest behind a weak shortwave. Highs will be seasonable and climb well into the 50s by the afternoon. .LONG TERM /Friday Night through Thursday/... Surface high and weak ridging over the region through Saturday will continue the quiet weather pattern with dry conditions and seasonal temperatures. We will then transition into an unsettle pattern for the rest of the extended. A piece of energy coming in from the south will phase with a northerly system and will move into the area Saturday night and Sunday...spreading showers across the area from southwest to northeast. With cooler air in place Saturday night...may see a brief mix of rain and snow late Saturday night/early Sunday morning over higher terrain and far northern locations. Little to no accumulation is expected. Then...a low pressure system will come up from TX...moving into the MRX CWA and continuing likely pops Monday into Tuesday. Again...on Monday night...a few northern locations and high elevations could see a mix of rain and snow. Model confidence becomes quite low by the end of the period but overall trend will generally put us between systems some time Tuesday night or Wednesday...and will keep pops low...20 to 30...for this time frame. A cold front then pushes in around the Wednesday/Thursday time frame for another round of scattered showers for the end of the period.
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&& .PRELIMINARY POINT TEMPS/POPS...
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Chattanooga Airport, TN 34 57 35 54 / 0 10 0 10 Knoxville McGhee Tyson Airport, TN 33 53 33 51 / 0 10 0 10 Oak Ridge, TN 32 54 33 51 / 0 10 0 10 Tri Cities Airport, TN 29 49 29 48 / 0 10 10 10
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&& .MRX WATCHES/WARNINGS/ADVISORIES... NC...None. TN...None. VA...None. && $$ AMP/MJB

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