textproduct: Morristown

KEY MESSAGES

Updated at 228 AM EDT Fri Oct 9 2026

- The remnants of Hurricane Isaias will impact the region Saturday and Sunday.

- Gusty winds are likely Saturday into Saturday night. High winds are likely over the eastern Tennessee mountains and foothills, and portions of southeast Tennessee.

- Heavy rain is possible for the southern Plateau, southeast Tennessee, and southwest North Carolina this weekend.

DISCUSSION

Issued at 228 AM EDT Fri Oct 9 2026

The primary concern for this forecast period will be the impacts from the remnants of Hurricane Isaias this weekend. The storm will landfall somewhere near the western most panhandle of Florida. The remnants of this storm will move north into western and middle Tennessee this weekend.

The main impacts from this storm across our area will be high winds and potential of heavy rainfall for the Plateau, southeast Tennessee, and southwest North Carolina. Downsloping winds across the central and northern Tennessee valley will limit QPF there.

Here are the more specific impacts from the remnants of Hurricane Isaias for Saturday and Sunday:

Heavy Rain Potential: Some tropical bands of heavy rain may move across the Plateau (especially southern), southeast Tennessee, and southwest North Carolina. Upslope flow into the Plateau will aid with the lift and potential banding. Rainfall amounts of 1 to 2 inches are possible. Again, downslope winds will limit QPF amounts over the northern and central valley. A flood watch remains in effect for parts of southeast Tennessee and southwest North Carolina.

High Winds Potential: The first corridor of high wind potential exists across SE TN and in and around the Chattanooga area. Since Isasia's low is moving a little further west the threat of gusts of 60 mph has diminished some, however, gusts of 50 mph remain possible, especially Lookout and Signal mountains.

The second corridor and main corridor of high winds will be along the eastern TN mountains and foothills. The REFS continue to depict the potential of high winds with peak gusts up to 70 mph in the mountains Saturday. The tight presssure gradient from the wedge over the Carolinas and Isaisa low pressure will produce strong winds.

Mountain wave high winds look likely for the far east Tennessee mountains and foothills. A High Wind Watch remains in effect for Saturday morning through Sunday morning to address the potential high winds. Have extended the watch to start at 06Z (2 AM Saturday morning)

For the rest of east Tennessee, southwest Virginia, and southwest North Carolina: Surface winds of 15 to 30 mph with gusts up to 45 mph are possible Saturday and Sunday.

The potential for severe weather looks quite limited. Instability is low and mainly elevated especially for Saturday and Saturday night. Warm frontal boundary remains south of the area.

Looking ahead to next week, we will see the return of upper level ridge as it builds into the region. This will return a prolonged stretch of dry, mostly sunny weather for much of next week. High temperatures will run 5 to 10 degrees above normal.

AVIATION

(06Z TAFS) Issued at 106 AM EDT Fri Oct 9 2026

No aviation impacts are expected this period. There is a chance of LLWS developing after the end of this TAF period as Hurricane Isaias moves closer to the area.

PRELIMINARY POINT TEMPS/POPS

Chattanooga Airport, TN 81 61 72 63 / 0 90 100 90 Knoxville McGhee Tyson Airport, TN 81 60 73 63 / 0 60 80 70 Oak Ridge, TN 80 59 71 62 / 0 50 80 80 Tri Cities Airport, TN 78 57 67 61 / 0 20 90 70

MRX WATCHES/WARNINGS/ADVISORIES

NC...Flood Watch from late tonight through Sunday morning for Cherokee-Clay.

High Wind Watch from Saturday morning through Sunday morning for Cherokee-Clay.

TN...Flood Watch from late tonight through Sunday morning for Bradley- East Polk-Hamilton-Marion-Sequatchie-West Polk.

High Wind Watch from Saturday morning through Sunday morning for Bradley-East Polk-Hamilton-Marion-West Polk.

High Wind Watch from late tonight through Sunday morning for Blount Smoky Mountains-Cocke Smoky Mountains-Johnson-Sevier Smoky Mountains-Southeast Carter-Southeast Greene-Southeast Monroe-Unicoi.

VA...NONE.