Area Forecast Discussion
Issued by NWS Knoxville/Tri Cities, TN
Issued by NWS Knoxville/Tri Cities, TN
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246 FXUS64 KMRX 112304 AAA AFDMRX Area Forecast Discussion...UPDATED National Weather Service Morristown TN 604 PM EST Tue Nov 11 2025 ...New AVIATION... .KEY MESSAGES... Updated at 602 PM EST Tue Nov 11 2025 - Moderating temperatures and quiet weather on tap through the end of the week. - Low chances of rain late in the weekend. && .DISCUSSION... Issued at 1229 PM EST Tue Nov 11 2025 In the upper levels, a deep trough remains over the Eastern U.S. This weekend, the region will be stuck between a weak ridge over the Southeast and a strong trough to the north. At the surface, high pressure will be over the region through Saturday bringing dry weather. On Sunday, a weak frontal passage is possible as a system moves through the Great Lakes. Very low rain chances will be possible on Sunday but it looks likely to be a dry and uneventful passage with only a slight dip in dew points and temps behind it. By Monday or Tuesday of next week, a more substantial system will be possible and may include a soaking rain. Temperatures will start to rebound today getting to near normal by tomorrow with highs in the upper 50s and lower 60s. This weekend will be a bit warmer with highs near 70 for much of the Valley due to southerly winds. && .AVIATION... (00Z TAFS) Issued at 602 PM EST Tue Nov 11 2025 LLWS will be the main aviation concern tonight as a strong LLJ from the west will set up over the area. Surface winds will not drop to calm, but the difference from the surface up to 2 kft will still be 30-35 kt, with a directional difference of 40-80 degrees. The LLWS should end around 15Z when winds aloft mix down to the surface and increase winds gusts tomorrow, up to 25 kt at TYS. && .PRELIMINARY POINT TEMPS/POPS... Chattanooga Airport, TN 36 64 38 65 / 0 0 0 0 Knoxville McGhee Tyson Airport, TN 36 59 36 61 / 0 0 0 0 Oak Ridge, TN 33 59 33 61 / 0 0 0 0 Tri Cities Airport, TN 29 54 32 56 / 0 0 0 0 && .MRX WATCHES/WARNINGS/ADVISORIES... NC...NONE. TN...NONE. VA...NONE. && $$ DISCUSSION...McD AVIATION...DGS