textproduct: Morristown

KEY MESSAGES

Updated at 1242 PM EST Wed Feb 18 2026

- Warm temperatures continue through Friday.

- Multiple chances for rain to end the week and into the weekend with an incoming front.

- Colder, sub-freezing temperatures return next week.

DISCUSSION

Issued at 1242 PM EST Wed Feb 18 2026

Currently another cloudy day with some breezy southwest winds keeping temperatures warm. Some light radar returns present across Middle TN and the Cumberland Plateau, which is producing a drizzle in spots. These will try and make it further into the eastern Tennessee Valley, but more precipitation coverage looks to hold off until later tonight when a mid level vort max helps enhance synoptic level forcing, especially areas north of Interstate 40.

Cloudy and warm conditions continue through Thursday and into Friday ahead of the main front. Expect on/off scattered to isolated showers on Thursday and into Friday, primarily north of Interstate 40. Widespread showers (and even thunderstorms) are expected when the front finally moves through, which is looking more and more likely to occur early late Thursday into early Friday morning. Enough instability in the atmosphere that people could hear their first rumble of thunder overnight. But expect primarily rain with this FROPA.

Light rain chances continue over the weekend as the front stalls out to our south with drizzle possible on Saturday into Sunday, but no significant accumulations are expected.

Next week we will get much colder with a trough digging south through the Great Lakes region allowing for very cold Canadian airmass to move into the region. The highest peaks of the northern plateau and Appalachian mountains could see a transition from rain to snow on Sunday as the system ejects out of the region. Accumulations are expected to be light, generally below 1" for all but the peaks of the mountains. Overnight temperatures will dip below freezing by Monday morning, and the coldest night of the week will be Tuesday morning seeing lows in the 20's to upper teens.

A gradual warming trend can be expected to start for the middle of the week, bringing temperatures back up to seasonal normals. However, another cold front can be expected late next week which looks to drop temperatures back down as we head into the weekend.

AVIATION

(18Z TAFS) Issued at 1242 PM EST Wed Feb 18 2026

Breezy conditions will continue thorugh much of the remaining daylight hours. Light rain will try and move through this evening, but low confidence on it impacting a terminal due to the isolated nature. More widespread rain overnight, but still spotty coverage expected.

PRELIMINARY POINT TEMPS/POPS

Chattanooga Airport, TN 59 77 60 73 / 30 20 80 30 Knoxville McGhee Tyson Airport, TN 59 74 60 69 / 50 40 80 40 Oak Ridge, TN 57 72 58 69 / 60 40 80 30 Tri Cities Airport, TN 53 71 55 66 / 60 50 70 40

MRX WATCHES/WARNINGS/ADVISORIES

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