textproduct: Huntsville

KEY MESSAGES

Updated at 1237 AM CDT Thu Oct 8 2026

- Hurricane Storm Isaias is forecast to make landfall Friday night near the AL/FL coastline. Isaias will move rapidly northward Saturday and Saturday night, bringing a medium chance of impactful gusty winds and a low risk of flooding to the Tennessee Valley.

NEAR TERM

(Tonight through Thursday night) Issued at 922 PM CDT Wed Oct 7 2026

With high pressure in control of our sensible weather across the Tennessee Valley again tonight, it will be a good setup for radiational cooling in this dry air mass. The combination of a mostly clear sky and light winds will allow temperatures to again drop into the low to mid 50s by early Thursday morning. High pressure over the area will amplify and strong subsidence will again result in a clear, sunny sky and dry conditions. As a result, temperatures will trend at least 2-3 degrees warmer as highs reach the upper 80s to perhaps lower 90s across much of the area. The dry air mass and clear conditions will again still allow for good radiational cooling Thursday night, but temperatures will trend a few degrees higher, with most locations staying in the upper 50s to lower 60s.

SHORT TERM

(Friday through Sunday) Issued at 922 PM CDT Wed Oct 7 2026

A big transition will begin to take place Friday as the surface high shifts east of the region and a shortwave trough develops over Texas and begins to pivot NNE/NE toward the lower Mississippi Valley. Meanwhile, a stronger subtropical ridge off of Florida will continue to amplify, building into the eastern Gulf by Friday afternoon/evening. The position and magnitude of these features will directly impact the track of Isaias as it curves north toward the MS/AL/FL coastline late Friday evening into Friday night. Though no impacts will be felt across the Tennessee Valley on Friday (save for a gradual increase in cloud cover), this will quickly change over the following 24 hours.

Isaias is forecast to strengthen into a hurricane and make landfall near the AL/FL border Friday night. Thereafter, it should quickly accelerate northward due to its interaction with the aforementioned shortwave trough. Strong westerly wind shear should quickly erode its tropical characteristics as it moves northward into central Alabama by late morning/midday hours. However, the strong gradient wind field will remain a significant concern Saturday afternoon/evening and into Saturday night as the system pushes NNE across the Tennessee Valley and into the Central/Southern Appalachians. Gusty winds well within the 30-40 MPH range seem plausible and depending on were the center of the remnant inner core of Isaias goes, some localized gusts up to 50 MPH would be on the table. A Wind Advisory seems likely during this window. These winds, especially with wet soils, would likely lead to downed trees and power outages across the region during the afternoon and evening timeframe.

With Isaias making landfall on the eastern side of guidance, this would place the Tennessee Valley within a developing dry slot as the system goes extratropical, limiting the rainfall threat somewhat. Additionally, at least for now, it appears that any tornado threat would be confined well to our south and east. Think that 1.5" to 3" of storm total rainfall will be common, but the quicker pace that the system will have as well as its track will result in a lower, more localized flood threat. Still, rises on rivers, creeks, and streams will likely occur even with these more modest rainfall totals and we will have to watch radar closely.

In summary, residents of the Tennessee Valley should be aware and prepared for a potentially windy/rainy Saturday into Saturday night and stay tuned and up to date on the latest forecast information -- especially if they have travel plans this weekend! Be prepared for power outages and make sure you have your emergency kits/supplies ready.

LONG TERM

(Sunday Night through Wednesday) Issued at 922 PM CDT Wed Oct 7 2026

In wake of the system, winds will subside Sunday into Sunday night, with high pressure building in during the early to middle part of next week. This will again result in beautiful autumn weather across the region for mid October. With ample sunshine and dry conditions highs will return to the 80s and overnight lows drop into the 50s.

AVIATION

(06Z TAFS) Issued at 1036 PM CDT Wed Oct 7 2026

VFR flight weather conditions are forecast.

HUN WATCHES/WARNINGS/ADVISORIES

AL...None. TN...None.