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

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986 FXUS64 KMRX 170735 AFDMRX Area Forecast Discussion National Weather Service Morristown TN 335 AM EDT Sun Sep 17 2017 .SHORT TERM (Today and Tonight)...
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Main forecast concern is the extent of fog/low-cloud developing early this morning and again early Monday morning. Expect patchy fog, some locally dense, mainly nearly waterways. Otherwise, ridging surface and aloft will remain with model soundings showing mid-level cap keeping things dry. Another warm day with temperatures a couple degrees warmer than normals. .Long Term (Monday through Saturday)...Above normal temperatures will continue during this period of the forecast and humidity will gradually rise with a weak southerly flow carrying low level moisture into the region from the Gulf of Mexico. Maintained a dry forecast for the first couple days of the extended on Monday and Tuesday. However, used the medium through high chance pops for some showers and thunderstorms on Wednesday as a weak trough edges southeast into the Southern Appalachian region. The weakness in the upper level pressure pattern hangs around through the end of the forecast period encouraging slight and low chance probabilities for convection in a sufficiently unstable atmosphere across the southeastern quarter of the nation. The pattern will be more reminiscent of mid Summer than early Fall.
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&& .PRELIMINARY POINT TEMPS/POPS...
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Chattanooga Airport, TN 87 65 85 65 / 10 0 0 0 Knoxville McGhee Tyson Airport, TN 85 62 83 62 / 0 0 0 0 Oak Ridge, TN 85 63 84 63 / 0 0 0 0 Tri Cities Airport, TN 83 57 81 59 / 10 0 10 10
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&& .MRX WATCHES/WARNINGS/ADVISORIES... NC...None. TN...None. VA...None. && $$

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