Area Forecast Discussion
Issued by NWS Knoxville/Tri Cities, TN
Issued by NWS Knoxville/Tri Cities, TN
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154 FXUS64 KMRX 142316 AAA AFDMRX Area Forecast Discussion...UPDATED National Weather Service Morristown TN 616 PM EST Fri Nov 14 2025 ...New AVIATION... .KEY MESSAGES... Updated at 615 PM EST Fri Nov 14 2025 - Dry weather will continue through Saturday with a slight warming trend. - Rain chances arrive Saturday night into Sunday morning, along with breezy conditions, especially for the mountains. - Drier and cooler conditions arrive later on Sunday into Monday, followed by increasing rain chances by mid-week. && .DISCUSSION... Issued at 1245 PM EST Fri Nov 14 2025 Currently this afternoon, troughing is centered to our east with surface high pressure remaining in place. This will continue the dry pattern we`ve had in recent days with mild daytime temperatures and another cool night tonight. On Saturday, ridging will lead to height rises with surface high pressure shifting to the south. This increase in heights and southerly flow will lead to warmer temperatures than today. A system will also move northeast of our area with a frontal boundary approaching from the northwest Saturday night. This will lead to a return of rain chances with instability and dynamics remaining largely to the northeast, keeping convection out of our area. However, WSW 850mb flow will reach 40 to 50 kts. While the setup does not really favor mountain waves, synoptic winds this strong will likely lead to advisory-level winds in the mountains with breezy conditions area-wide. Behind the front, cooler and drier conditions will return by Sunday. High pressure will remain on Monday, but a weak initial system to our west comes into view. This will lead to another return of low- end rain chances on Tuesday. By the middle of the week, however, deepening troughing will become cut off from the main flow with a more robust system approaching from the west with southerly flow pulling the frontal boundary back northward. A lot still remains uncertain about the overall evolution and track of this system, but a return of higher rain chances is expected during the second half of the week regardless. && .AVIATION... (00Z TAFS) Issued at 615 PM EST Fri Nov 14 2025 VFR conditions are forecast this period. Winds will become gusty from the SW tomorrow afternoon, starting around 16-18Z. && .PRELIMINARY POINT TEMPS/POPS... Chattanooga Airport, TN 72 42 75 59 / 0 0 0 10 Knoxville McGhee Tyson Airport, TN 67 43 71 59 / 0 0 0 30 Oak Ridge, TN 66 42 69 58 / 0 0 0 40 Tri Cities Airport, TN 64 41 66 56 / 0 0 0 60 && .MRX WATCHES/WARNINGS/ADVISORIES... NC...NONE. TN...NONE. VA...NONE. && $$ DISCUSSION...BW AVIATION...DGS