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

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000 FXUS64 KMRX 191427 AFDMRX Area Forecast Discussion National Weather Service Morristown TN 1027 AM EDT Fri May 19 2017 .DISCUSSION...
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Widespread showers and storms to the north across Kentucky currently as a weak shortwave trough moves through. Based on the current radar and shortwave position, it appears the best precip. chances late this morning and into the early afternoon will be across SW VA. Models indicate that the shortwave trough will pass to the northeast of the area around 18-20z. After this, expect the highest precip. chances will be across the higher elevations of the Southern Appalachians. SBCAPE values range from around 1000-2000 J/Kg with 0-6 km bulk shear values of 20-30 kts. Overall, expect there is still a small chance for a strong to marginally severe storm with gusty winds and small hail being the main threats. For the update, made some adjustments to the PoP and wx grids based on the current radar and made some minor tweaks to the hourly temperature and dewpoint grids.
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&& .PRELIMINARY POINT TEMPS/POPS...
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Chattanooga Airport, TN 89 68 90 68 / 20 20 20 50 Knoxville McGhee Tyson Airport, TN 86 67 89 66 / 30 20 30 50 Oak Ridge, TN 86 66 90 66 / 40 20 30 50 Tri Cities Airport, TN 85 63 87 60 / 50 20 50 30
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&& .MRX WATCHES/WARNINGS/ADVISORIES... NC...None. TN...None. VA...None. && $$ MA

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