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

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000 FXUS64 KMRX 281444 AFDMRX Area Forecast Discussion National Weather Service Morristown TN 1044 AM EDT Fri Jul 28 2017 .DISCUSSION... Current radar imagery indicates scattered showers across the area with the best coverage across the Southern Valley and Plateau. Radar estimates in Marion county show rainfall amounts of half an inch to an inch with the higher rates to the south and west across Northern Alabama and Southern Middle TN. Based off the current and forecast rainfall rates, not expecting any widespread flooding issues but could see some localized flash flooding today. PW values are near the maximum observed for late July. Cloud cover ahead of the approaching front will keep temperatures in the mid 70s to low 80s today. Due to this, SBCAPE values will only climb up into the 750-1500 J/Kg range. Deep layer 0-6 km shear will increase into the 25-35 kt range later this afternoon as the front approaches from the northwest. There is a small chance there could be an isolated strong to marginally severe storm ahead of the front. Overall, there appears to be too many limiting factors. The front will move through the area later this evening into tonight and drier conditions are forecast for Saturday. && .PRELIMINARY POINT TEMPS/POPS... Chattanooga Airport, TN 80 70 84 66 / 100 70 10 0 Knoxville McGhee Tyson Airport, TN 82 67 81 62 / 80 70 10 10 Oak Ridge, TN 82 68 81 62 / 70 60 10 0 Tri Cities Airport, TN 77 64 77 57 / 80 70 20 10 && .MRX WATCHES/WARNINGS/ADVISORIES... NC...None. TN...None. VA...None. && $$ MA

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