textproduct: Morristown

KEY MESSAGES

Updated at 727 AM EDT Mon Sep 7 2026 - Showers and storms will be isolated to scattered this afternoon and evening.

- Drier conditions return for Tuesday and Wednesday with scattered to widespread showers and storms possible Thursday and Friday.

DISCUSSION

Issued at 235 AM EDT Mon Sep 7 2026

The cold front has finally moved through the region and is over northern MS/AL/GA. Currently, a ridge is centered over the Great Plains and a trough is over the Northeast. The ridge will build into the Ohio and Tennessee Valleys today as the trough exits the East Coast. Temperatures will be a bit cooler today (although still very warm) with highs in the Tennessee Valley mainly in the upper 80s. Showers and storms will be isolated to scattered this afternoon mainly along and south of I-40 as an inverted surface trough forms over Kentucky and Tennessee. SPC has general thunder for that area and that seems appropriate.

Tuesday will be dry and a bit warmer with the ridge now centered closer to the region over the Lower Mississippi Valley. Wednesday will also be dry and warm but the ridge begins to flatten as a broad trough moves into the Ohio Valley. Highs will be in the upper 80s and lower 90s which is a few degrees above normal.

Confidence is increasing for scattered to widespread showers and storms Thursday and Friday as a shortwave moves through the Ohio Valley. A cold front will also move through the region around Thursday night and may stall a bit to the south causing showers to linger into Friday.

The weekend looks to start off with a weak trough possibly bringing shower and storm activity Saturday before a weak ridge on Sunday leads to drier weather.

AVIATION

(12Z TAFS) Issued at 727 AM EDT Mon Sep 7 2026

Cloud cover and a large enough dewpoint depression, kept fog at bay from TRI up until this very time. Guidance still tries to bring in possible MVFR CIG a couple of hours there this morning. ISOLD to SCTD shower and storm development later this afternoon, primarily the best chance at TYS and CHA. Winds will be light and variable at times with a general NE to SE direction. Clearing overnight tonight under strengthening high pressure.

PRELIMINARY POINT TEMPS/POPS

Chattanooga Airport, TN 90 70 91 69 / 30 20 0 0 Knoxville McGhee Tyson Airport, TN 88 66 90 66 / 40 0 0 0 Oak Ridge, TN 88 66 89 66 / 40 10 0 0 Tri Cities Airport, TN 82 61 86 61 / 10 0 0 0

MRX WATCHES/WARNINGS/ADVISORIES

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