textproduct: Morristown

KEY MESSAGES

Updated at 142 AM EDT Mon Apr 20 2026

- Drier and cooler conditions are expected today into early next week.

- A warming trend will continue through much of the week with rain chances returning Friday into Saturday.

DISCUSSION

Issued at 225 PM EDT Sun Apr 19 2026

The sunny skies have returned after the overnight rain. Most locations in the valley saw around 0.5 inches of rain with some places getting a bit more, and others getting a bit less. Not enough to bust the drought, but hopefully will help even just a little with fuel moisture. Winds out of the north to northwest behind the front have helped keep temperatures down, running 20+ degrees cooler compared to pre-frontal conditions yesterday. This cooler temperature trend will continue overnight with places in northeast TN, southwest VA, and elevations above 2,000 feet looking to dip below 40 degrees. Cannot completely rule out frost, especially in southwest VA with the coldest temperatures expected in that area. Tomorrow will see a slight uptick in temperatures, but then we drop again Tuesday morning with some parts of southwest VA and the Appalachians looking to hit the freezing mark for a few hours overnight. The Frost Advisories and Freeze Warnings at WFO MRX do not officially begin until May 1 based on climatology, but with how warm we've been recently anyone with outdoor plants they planted early due to the warm weather should take note for the cold temps.

Other than the cold morning temperatures coming up there is little weather of note for the region as the generally dry trend continues for much of the work week. A warming trend can be expected with each day a bit warmer than the last, culminating in our hottest day of the forecast looking to occur on Friday.

Over the weekend we'll have a couple of weaker disturbances move through the Tennessee Valley which could bring additional rounds of rain. As of this writing the synoptics look fairly mild and QPF amounts look limited for the weekend. Of higher confidence is that it will put a damper on the temperatures, dropping most places back into the 70's with the increased cloud coverage.

AVIATION

(06Z TAFS) Issued at 142 AM EDT Mon Apr 20 2026

Calm and clear under high pressure the rest of the night. W-NWly winds will develop later today with possible gusts up to 20KT. Mid to high clouds during the day, followed by a return to calm and clear later tonight.

PRELIMINARY POINT TEMPS/POPS

Chattanooga Airport, TN 75 47 80 52 / 0 0 0 0 Knoxville McGhee Tyson Airport, TN 69 43 76 51 / 0 0 0 0 Oak Ridge, TN 70 42 77 50 / 0 0 0 0 Tri Cities Airport, TN 61 35 71 47 / 10 0 0 10

MRX WATCHES/WARNINGS/ADVISORIES

NC...Fire Weather Watch from noon EDT today through this evening for Cherokee-Clay.

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