textproduct: Morristown
This forecast discussion was created in the public domain by the National Weather Service. It can be found in its original form here.
KEY MESSAGES
Updated at 1226 PM EST Mon Dec 22 2025
- Dry conditions will continue this afternoon with RH's falling well into the 20s.
- Low rain chances tonight and tomorrow. Low rain chances off and on mid to late week. Any rain will be light.
- Unseasonable warm weather expected for Christmas Eve and Christmas Day likely continuing through the weekend.
DISCUSSION
Issued at 1226 PM EST Mon Dec 22 2025
In the upper levels, a ridge is building into the Central U.S. At the surface, high pressure is over the Southeast and a low is moving through the Great Lakes tonight and tomorrow bringing a weak boundary near or just north of the region. Very low rain chances begin late tonight and continue tomorrow. CAMs show scattered light showers. With a very dry air mass at the surface, some of this light rain may evaporate before reaching the ground. Chances for rain reaching the ground are better for Tuesday night/Wednesday morning but amounts will be low with weak forcing and limited moisture present. Another chance for light rain is possible late Wednesday night and Thursday morning as a minor wave moves through the pattern with a strong ridge now over the Central U.S. Again, any rain amounts will be light with limited moisture present.
The ridge flattens by Friday bringing nearly zonal flow aloft. A series of minor waves will bring low light rain chances off and on Thursday night through Friday night. The best chance for rain will be Sunday when a more substantial system may bring a clean cold front passage with cooler weather next Monday.
A warming trend starts today with things really heating up by Wednesday, remaining warm through the weekend. Chattanooga will have a shot at the record high on Christmas Day with the forecast at one degree below.
Christmas Day:
Forecast High Normal High Record High Chattanooga: 74 52 75 Knoxville Airport: 69 49 76 Tri-Cities: 63 48 74
AVIATION
(18Z TAFS) Issued at 1226 PM EST Mon Dec 22 2025
Low clouds are moving in today and tonight. Conditions will be mainly VFR with brief MVFR CIGs possible in the morning hours. Low level wind shear is likely at TRI and TYS in the late night and morning hours. Rain chances are too low to include but a brief light rain will be possible tonight and tomorrow. Some rain may not reach the ground due to very dry air at the surface.
PRELIMINARY POINT TEMPS/POPS
Chattanooga Airport, TN 47 66 52 71 / 10 10 10 0 Knoxville McGhee Tyson Airport, TN 45 61 54 67 / 10 10 20 10 Oak Ridge, TN 44 60 51 64 / 10 10 30 10 Tri Cities Airport, TN 38 56 49 61 / 20 10 30 10
MRX WATCHES/WARNINGS/ADVISORIES
NC...NONE. TN...NONE. VA...NONE.
IMPORTANT This is an independent project and has no affiliation with the National Weather Service or any other agency. Do not rely on this website for emergency or critical information: please visit weather.gov for the most accurate and up-to-date information available.
textproduct.us is built and maintained by Joshua Thayer.