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

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180 FXUS64 KMRX 280718 AFDMRX Area Forecast Discussion National Weather Service Morristown TN 318 AM EDT Wed Jun 28 2017 .SHORT TERM...
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(Today and Tonight)... Sunny and dry today with high pressure remaining in control overhead. With lows this morning dropping well into the 50s, some patchy morning fog is possible along rivers, lakes, and other bodies of water. This will quickly burn off as temperatures climb after sunrise. The record low at TRI is 50 for today, and with the temperature sitting at 52 as of 3am, there`s a good chance we will get within a degree of tying or breaking it. Highs today will be slightly below normal for this time of year, ranging from the upper 70s to lower 80s with abundant sunshine and fairly low humidity. As the center of the surface high shifts east overnight, moisture from the Gulf will slowly work its way into the area, gradually increasing cloud cover from the south. With more moisture present, lows tonight will remain a bit warmer, staying in the 60s across much of the forecast area. .LONG TERM...(Thursday through Tuesday)...Surface high pressure off the North Carolina coast will lose its drying influence on the forecast area. Look for increasing low level moisture and higher humidity as southerly winds increase. Shortwave ejecting out of central AL picked up by GFS and SREF models bringing highest PoPs to the southern TN Valley by Thursday afternoon waning by mid-evening. Another round of showers and thunderstorms looks like a good bet by Friday afternoon. These will likely be scattered thunderstorms typical of summer-like weather given the higher moisture levels. The best rain chances come Saturday ahead of a deeper trough and associated cold front. Should briefly become drier Sunday and Monday...with increasing chances of showers and thunderstorms by Independence Day.
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&& .PRELIMINARY POINT TEMPS/POPS...
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Chattanooga Airport, TN 87 69 82 70 / 0 0 70 20 Knoxville McGhee Tyson Airport, TN 85 66 86 67 / 0 0 30 10 Oak Ridge, TN 83 65 86 68 / 0 0 30 10 Tri Cities Airport, TN 82 60 86 62 / 0 0 10 10
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&& .MRX WATCHES/WARNINGS/ADVISORIES... NC...None. TN...None. VA...None. && $$ EMH/AC

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