textproduct: Morristown

KEY MESSAGES

Updated at 148 PM EDT Fri Oct 9 2026

- The remnants of Hurricane Isaias will impact the region tonight through Sunday.

- Gusty winds are likely tonight through early Sunday morning. 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 148 PM EDT Fri Oct 9 2026

The big story continues to be the impacts from the remnants of Hurricane Isaias for this weekend. Rain and wind will begin to ramp up overnight tonight. High winds are likely by daybreak in the mountains and foothills. While the low of the storm tracks through middle TN the impacts will expand far from the center of the system. Bottom line: it's going to be a wet and windy weekend for the Tennessee Valley, so make sure you're weather aware and prepared!

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 precipitation on Saturday. 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: Increased confidence for gusty winds this weekend. High Wind Warning issued for Mountains, foothills. Wind Advisory issued elsewhere. Strong gusty winds are likely!

The main corridor of high winds will be along the eastern TN mountains and foothills. The hi-res suite continues to depict the potential of high winds with peak gusts up to 70 mph in the mountains on Saturday. The tight pressure gradient from the wedge over the Carolinas and Isaias low pressure will produce strong winds. Mountain wave high winds look likely for the far east Tennessee mountains and foothills. A High Wind Warning goes into effect tonight through Sunday morning to address the potential high winds. We did expand the High Wind Warning to include Washington and Russell counties in SW VA. I have adjusted the High Wind Warning and Wind Advisory start time to begin at midnight EDT/11pm CDT as winds are expected to ramp up quickly.

For Chattanooga area, the threat of gusts in excess of 60 mph has diminished some, however, gusts of 50-60 mph remain possible, especially Lookout and Signal mountains.

For the rest of east Tennessee, southwest Virginia, and southwest North Carolina: Surface winds of 15 to 30 mph with gusts up to 50 mph are possible Saturday and Sunday. We have opted to issue Wind advisories to address the strong gusty winds.

Severe Thunderstorm potential: The potential for severe weather looks quite limited. Instability is low and mainly elevated especially for Saturday and Saturday night as the warm sector remains to our south and east. A few rumbles of thunder cant be ruled out but severe weather is not expected.

Looking ahead to next week, we will see the return of upper level ridge as it builds into the region at the start of the week. 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

(18Z TAFS) Issued at 148 PM EDT Fri Oct 9 2026

Period starts with VFR conditions and a mid-level cloud deck overhead. Primary concern will be the timing as the remnants of Hurricane Isaias approaches our sites from the south. Impacts arrive Saturday morning at CHA and TYS and TRI by late morning. We've added rain with MVFR vsby and cigs to address the precipitation shield advancing northward. LLWS is included at both CHA and TYS with TRI likely included with the next TAF update. Wind speeds will increase by daybreak. Saturday morning will see winds generally around 10 to 15 knots with gusts up to 30 to 35 knots. Impacts will continue through the end of the TAF.

PRELIMINARY POINT TEMPS/POPS

Chattanooga Airport, TN 61 72 62 73 / 90 100 90 30 Knoxville McGhee Tyson Airport, TN 60 73 64 73 / 60 80 70 70 Oak Ridge, TN 59 71 62 71 / 50 80 80 70 Tri Cities Airport, TN 57 67 62 76 / 20 90 70 90

MRX WATCHES/WARNINGS/ADVISORIES

NC...Wind Advisory from midnight tonight to 8 AM EDT Sunday for Cherokee-Clay.

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

TN...Wind Advisory from midnight EDT /11 PM CDT/ tonight to 8 AM EDT /7 AM CDT/ Sunday for Anderson-Bledsoe-Bradley-Campbell- Claiborne-Grainger-Hamblen-Hamilton-Hancock-Hawkins- Jefferson-Knox-Loudon-Marion-McMinn-Meigs-Morgan-North Sevier-Northwest Blount-Northwest Carter-Northwest Cocke- Northwest Greene-Northwest Monroe-Rhea-Roane-Scott TN- Sequatchie-Sullivan-Union-Washington TN-West Polk.

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

High Wind Warning from midnight tonight to 8 AM EDT Sunday for Blount Smoky Mountains-Cocke Smoky Mountains-East Polk- Johnson-Sevier Smoky Mountains-Southeast Carter-Southeast Greene-Southeast Monroe-Unicoi.

VA...Wind Advisory from midnight tonight to 8 AM EDT Sunday for Lee- Scott VA-Wise.

High Wind Warning from midnight tonight to 8 AM EDT Sunday for Russell-Washington VA.