textproduct: Morristown

KEY MESSAGES

Updated at 714 PM EST Fri Nov 13 2026

- Snow accumulations of 1 to 4 inches are expected at or above 3,000 feet in the Tennessee mountains with locally higher amounts along the highest peaks today and tonight. Some light snow accumulations are also likely over the higher elevations in SW VA.

- Dry weather will return during the weekend and then continue through next Friday. After a cold weekend, we will see a gradual warming trend.

DISCUSSION

Issued at 1250 PM EST Fri Nov 13 2026

Currently a deep mid/upper trough is over the eastern CONUS. Low level flow is from the northwest over our area with cold advection ongoing. A lobe of short wave energy is moving through the trough and is currently moving southeast an KY and is will swing across later today, with another wave not far behind currently approaching the Ohio Valley. The first of the two short waves will enhance rain showers/high elevations snow showers this afternoon, with another uptick in activity expected with the second wave early tonight. NW flow around 15 to 25 kts will bring an orographic boost to the normally favored upslope areas. Light snow has already accumulated over the highest peaks and freezing levels will continue to drop further later today into tonight. Additional accumulating snow will occur over the higher elevations later this afternoon and tonight especially above 3000 ft, and a few flurries or a light snow shower may even make it to the ground over some valley locations overnight. The winter weather advisory will remain if effect for elevations above 3000 feet in the E TN mountains, but lighter snow accumulations are likely across higher elevation areas in SW VA as well. An SPS will be issued for these lighter amounts. The precipitation will taper off later tonight into Saturday as the moisture becomes more shallow and the upslope flow weakens, but it will remain cold.

The upper trough will begin shifting off to the east Sunday, and ridging will gradually build in for next week. It looks like we will see another extended dry period for Sunday through next Friday. Sunday will still be on the chilly side, but we will see a gradual warming trend for next week.

AVIATION

(00Z TAFS) Issued at 714 PM EST Fri Nov 13 2026

Low to mid ceilings expected to remain overnight with light showers or snow showers passing through near KTRI. Expect MVFR ceilings much of the night with improvement's not occurring until tomorrow.

PRELIMINARY POINT TEMPS/POPS

Chattanooga Airport, TN 34 54 32 56 / 0 0 0 0 Knoxville McGhee Tyson Airport, TN 33 49 29 54 / 20 0 0 0 Oak Ridge, TN 32 50 29 54 / 10 0 0 0 Tri Cities Airport, TN 30 44 28 49 / 60 0 0 0

MRX WATCHES/WARNINGS/ADVISORIES

NC...NONE. TN...Winter Weather Advisory until 1 PM EST Saturday for Blount Smoky Mountains-Cocke Smoky Mountains-Johnson-Sevier Smoky Mountains-Southeast Carter-Southeast Greene-Southeast Monroe-Unicoi.

VA...NONE.