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

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000 FXUS64 KMRX 231531 AFDMRX Area Forecast Discussion National Weather Service Morristown TN 1031 AM EST Thu Feb 23 2017 .DISCUSSION... Dense fog area wide has dissipated. However portions of the central and southern Tennessee Valley along with central and southern portions of the Plateau continue to see patches of dense fog. As such, have expired the Dense Fog Advisory and issued a Special Weather Statement for patchy fog in those areas until noon. Persistent fog coincides with axis of surface ridge which extends westward from NW North Carolina into SW Tennessee. Observations along and south of the ridge axis in our area continue to show calm to light winds. Expect this fog to gradually lift by noon as the ridge axis strengthen a bit helping to increase winds slightly and the heating of the day begins in earnest. Updated sky and weather grid to include patchy fog over SW portions of the CWA for the remainder of the morning. Similarly tweaked temperature grid in line with latest observations. && .PRELIMINARY POINT TEMPS/POPS... Chattanooga Airport, TN 74 54 77 50 / 10 10 10 70 Knoxville McGhee Tyson Airport, TN 74 53 76 53 / 10 10 10 80 Oak Ridge, TN 74 53 76 50 / 10 10 10 80 Tri Cities Airport, TN 71 48 76 54 / 10 10 10 80 && .MRX WATCHES/WARNINGS/ADVISORIES... NC...None. TN...None. VA...None. && $$ EJH

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