textproduct: Morristown

KEY MESSAGES

Updated at 233 AM EDT Thu Apr 2 2026

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

- Chances for PM showers and storms through the end of the week, with greater coverage across the higher elevations. Better chances for more widespread showers and possible storms expected late Saturday night and Sunday morning.

- Cold front late weekend will bring cooler temperatures early next week. Frost possible Monday through Wednesday morning.

DISCUSSION

Issued at 233 AM EDT Thu Apr 2 2026

Today will be much like yesterday, except maybe lesser coverage in higher terrain storms. According to the 00z HRRR, instability will be weaker. Any storm that does form though does have the chance of becoming strong with primary hazards being gusty winds, small hail, downpours, and lightning. Basically the same can be said for Friday with a diurnal increase in isolated to scattered showers and storms. Southerly to southwesterly winds and gusts could be higher today due to a low pressure center moving towards Lake Michigan and the surface high remaining anchored over the western Atlantic.

Even with a shortwave trough moving towards the western Great Lakes later today, we will remain mostly under the influence of the upper ridge with very warm temperatures continuing. Low to mid 80s for most, expected each day through Saturday. These values run 15 to 20 degrees above normal for early April.

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. Some locations could see up to or just over one inch of rainfall. Although it is still too early to know if strong to severe storms will accompany this system, WPC highlights a MRGL risk for flash flooding for the Day 4 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. A secondary cold front around Tues/Wed may bring even colder temperatures to the area Wednesday morning. For example, Tri-Cities averages a low of 41 degrees April 8th, but the current forecast is calling for low 30s.

AVIATION

(06Z TAFS) Issued at 111 AM EDT Thu Apr 2 2026

Light and variable winds are expected overnight into the morning hours with limited cloud cover generally between 5,000 and 10,000 feet. Throughout the day, increasing southerly to southwesterly winds are expected with gusts of 20 kts or greater likely at CHA and TYS. There are some chances for showers or isolated storms in the afternoon, but confidence remains low enough for it to be left out of the TAFs. If anything did hit one of the terminals, TRI has the highest chance for impact.

PRELIMINARY POINT TEMPS/POPS

Chattanooga Airport, TN 85 63 84 63 / 20 10 10 10 Knoxville McGhee Tyson Airport, TN 84 63 82 61 / 20 0 20 10 Oak Ridge, TN 84 63 82 61 / 20 20 20 0 Tri Cities Airport, TN 82 58 80 57 / 20 0 20 0

MRX WATCHES/WARNINGS/ADVISORIES

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