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

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094 FXUS64 KMRX 251426 AFDMRX Area Forecast Discussion National Weather Service Morristown TN 1026 AM EDT Sun Jun 25 2017 .DISCUSSION...
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A longwave trough extends across the eastern 2/3rds of the CONUS with westerly flow aloft across the Southern Appalachians. A few weak echos showing up on radar south of I-40. PW values are currently around 0.8-1.0 inches which is around the 10th-25th percentile for late June. The forecast area is in the entrance region of a strong 100-120 kt jet that extends across the Ohio River Valley into New England. With the drier air in place, this is just leading to widespread mid and high cloud across the region. Due to this, increased the cloud cover throughout the remainder of the morning and into the early afternoon. Clouds should decrease throughout the afternoon as the jet lifts out to the northeast. Also, with the lack of moisture, expect just a few sprinkles will be possible south of I-40 over the next couple of hours or so.
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&& .PRELIMINARY POINT TEMPS/POPS...
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Chattanooga Airport, TN 83 60 83 59 / 10 0 0 10 Knoxville McGhee Tyson Airport, TN 81 58 80 57 / 10 0 0 10 Oak Ridge, TN 81 57 80 56 / 10 0 0 10 Tri Cities Airport, TN 78 53 77 53 / 0 0 10 10
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&& .MRX WATCHES/WARNINGS/ADVISORIES... NC...None. TN...None. VA...None. && $$ MA

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