textproduct: Morristown

KEY MESSAGES

Updated at 239 AM EDT Wed Apr 1 2026

- Very warm through Saturday. 15 to 20 degrees above normal.

- Chances for PM showers and storms will increase through Friday, with greater coverage across the higher elevations. More widespread showers expected late Saturday night and Sunday morning.

- Cold front late weekend will bring cooler temperatures early next week. Frost possible Monday and Tuesday.

DISCUSSION

Issued at 239 AM EDT Wed Apr 1 2026

In comparison to yesterday, today will be a couple of degrees warmer with higher humidity and an increase in shower and storm potential. The greatest coverage will be over the higher terrain of the Southern Appalachians and Cumberland Plateau. Not a whole lot of shear to work with, so organized convection will be hard to come by. CAPE will run close to 1,000 J/kg. A few hundredths to a couple tenths of an inch of precipitation is possible through late this evening. Activity dies after sunset. Although southwesterly flow will continue, gusts may not be as strong as yesterday afternoon.

The summer-like pattern continues through the end of the work-week, with scattered PM showers and storms across our area. And not to mention, temperatures will be well above normal with low and possibly mid 80s for the valley each day through Saturday. Temperatures will be running 15 to 20 degrees above average. Tying and breaking of records at the climate sites, is possible. Tri- Cities did tie the high temperature record for yesterday afternoon.

A pattern change arrives this weekend when a deeper trough is forecast to take a Northern Plains to Western Great Lakes track. A deepening low pressure center near the central US will also track towards the Great Lakes. A trailing cold front will reach the forecast area sometime late Saturday into early Sunday. The potentially strong frontal system will hopefully bring much needed precipitation area-wide. Still too early to know if strong to severe storms will accompany this system. So far, only WPC highlights a MRGL risk for flash flooding for the Day 5 period.

Following the front, cooler more seasonable temperatures beginning Easter Sunday to kick start the first full week of April. A dry few days may set in with low afternoon RHs, so a possible return of enhanced fire danger. Frost development may even be possible some mornings early next week.

AVIATION

(06Z TAFS) Issued at 104 AM EDT Wed Apr 1 2026

Fairly light winds and a few mid level clouds are expected for the rest of the night into the morning hours. During the day, southerly to southwesterly winds will increase with gusts nearing 20 kts at TYS and potentially CHA. Afternoon showers and storms are possible with limited coverage expected around CHA. TYS and TRI, however, have better chances of seeing something at the terminal. Chances do look highest at TRI, but both were kept as PROB30s for now.

PRELIMINARY POINT TEMPS/POPS

Chattanooga Airport, TN 83 62 85 63 / 40 20 20 10 Knoxville McGhee Tyson Airport, TN 82 62 85 62 / 50 20 40 10 Oak Ridge, TN 81 61 84 62 / 50 20 30 10 Tri Cities Airport, TN 79 57 82 57 / 70 20 40 10

MRX WATCHES/WARNINGS/ADVISORIES

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