textproduct: Morristown

KEY MESSAGES

Updated at 1241 PM EST Sat Dec 20 2025

- Low to medium chances for light rain on Tuesday and Tuesday night.

- Unusually warm temperatures for Christmas.

DISCUSSION

Issued at 1241 PM EST Sat Dec 20 2025

Dry and mild through Monday with highs in the 50s in the Tennessee Valley. In the upper levels, nearly zonal flow or slight troughing will be in place before a slight ridge builds in on Monday. At the surface, high pressure will be in place. Low rain chances will return Monday night through Tuesday as a low moves through the Great Lakes bringing a boundary through the region or stalling just to the north. Temps look warm with highs in the 60s expected for Christmas Eve and Christmas Day, thanks to a ridge building into the Southeast. Another shot of rain is possible on Friday as another Great Lakes system brings another boundary to the region.

Highs will be up to 20 degrees above normal on Christmas Day

Forecast High Normal High Record High Chattanooga: 72 52 75 Knoxville Airport: 68 49 76 Tri-Cities: 63 48 74

AVIATION

(18Z TAFS) Issued at 1241 PM EST Sat Dec 20 2025

Some low clouds will move into the region tonight. MVFR CIGs are possible briefly mainly near CHA. Low Level Wind Shear will be a concern mainly near TRI and TYS, ending in the early morning hours. Clouds will scatter out by mid morning.

PRELIMINARY POINT TEMPS/POPS

Chattanooga Airport, TN 41 59 34 57 / 10 10 0 0 Knoxville McGhee Tyson Airport, TN 38 54 30 55 / 10 10 0 0 Oak Ridge, TN 38 54 31 54 / 10 0 0 0 Tri Cities Airport, TN 33 50 24 54 / 0 0 0 0

MRX WATCHES/WARNINGS/ADVISORIES

NC...NONE. TN...NONE. VA...NONE.