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

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000 FXUS64 KMRX 250537 AFDMRX Area Forecast Discussion National Weather Service Morristown TN 137 AM EDT Tue Apr 25 2017 .AVIATION...It is apparent that orographic effects along with some limited assistance with dry air advection is keeping the terminals vfr right now. The question is will a low level northeasterly component bring some lower ceilings southwest into the Great Valley. The possibility exists and forecast cha to become mvfr due to ceiling and fog while forecasting a deteriorating situation at tri due to mvfr fog. Models indicate a strato cu ceiling hangs around through much of the day today but it looks like it will be a few thousand feet above mvfr category. The ceiling may scatter out later this afternoon. && .MRX WATCHES/WARNINGS/ADVISORIES... NC...None. TN...None. VA...None. && $$

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