Area Forecast Discussion
Issued by NWS Knoxville/Tri Cities, TN
Issued by NWS Knoxville/Tri Cities, TN
600 FXUS64 KMRX 251814 AFDMRX Area Forecast Discussion National Weather Service Morristown TN 214 PM EDT Fri Sep 25 2026 ...New DISCUSSION... .KEY MESSAGES... Updated at 213 PM EDT Fri Sep 25 2026 - Fall-like temperatures continue through the weekend followed by warmer temperatures next week. - Dry weather is expected to continue until the latter part of next week. && .DISCUSSION... Issued at 213 PM EDT Fri Sep 25 2026 Pleasant fall-like temperatures have been a welcome change to the heat of the previous weeks. For the next few days, we will maintain a northerly flow through the column due to the strong low pressure system off the Mid-Atlantic/New England coastline and a ridge over the Great Plains. Highs in the 70s and lows in the 40s to lower/mid 50s will continue through the weekend. The pattern will favor dry weather as well, with abundant sunshine for most of the area. Some high cloud on the fringes of the Nor`easter could reach our northern sections by Monday, with no real impact. As the ridge to our west shifts east and flattens out, a developing southerly flow will bring warmer temperatures next week, with highs in the 80s for most of the TN Valley by Tuesday. These above normal temperatures will continue for most of next week. Late in the week, we may see some rain chances returning as a shortwave trough may move into the Plains and MS Valley region. && .AVIATION... (18Z TAFS) Issued at 118 PM EDT Fri Sep 25 2026 No aviation impacts are expected this period. Cloud bases at CHA are hovering around 3 kft but are expected to trend upward in the next hour or two. Cannot rule out some fog at TRI tonight completely, but the chance looks low at this point. && .PRELIMINARY POINT TEMPS/POPS... Chattanooga Airport, TN 55 80 55 81 / 0 0 0 0 Knoxville McGhee Tyson Airport, TN 51 75 50 75 / 0 0 0 0 Oak Ridge, TN 51 76 50 76 / 0 0 0 0 Tri Cities Airport, TN 44 74 44 73 / 0 0 0 0 && .MRX WATCHES/WARNINGS/ADVISORIES... NC...NONE. TN...NONE. VA...NONE. && $$ DISCUSSION...DGS AVIATION...DGS