textproduct: Huntsville

KEY MESSAGES

Updated at 1107 AM CDT Thu Oct 8 2026

- Hurricane Isaias will make landfall on the Gulf Coast late Friday night and bring high chances for impactful gusty winds up to 50 mph, a medium chance for flash flooding, and a low chance for tornadoes Saturday morning through Saturday evening.

- A High Wind Watch is in effect from 7 AM Saturday to 7 AM Sunday.

- A Flood Watch is in effect from 1 AM Saturday to 7 AM Sunday.

NEAR TERM

(Rest of tonight and Friday) Issued at 1000 PM CDT Thu Oct 8 2026

Initial cirrus plume from Hurricane Isaias has moved in and created partly to mostly cloudy conditions across the area. These clouds will help keep temperatures a little bit warmer overnight, with lows likely remaining in the low to mid 60s in most locations. The clouds (especially across our western areas) may thin temporarily at times on Friday. This will allow for enough heating to push highs into the mid to upper 80s across much of the area by the afternoon. As Isaias approaches the coast Friday afternoon, dense cloud cover will return and winds will increase as the approaching tropical cyclone begins to interact with a shortwave trough pivoting into the lower Mississippi Valley. This will likely result in some breezy conditions by the afternoon as southerly winds between 10-20 MPH are expected. The brunt of Isaias's impact will occur late Friday night through Saturday night. Residents of the Tennessee Valley should use the time they have on Friday to prepare for the strong gradients winds and heavy rainfall forecast to occur on Saturday. More on this in the section below.

SHORT TERM

(Friday night through Sunday) Issued at 1000 PM CDT Thu Oct 8 2026

Isaias will make landfall late Friday evening into Friday night along the AL or FL Coastline and accelerate northward due to its interaction with a shortwave trough pivoting into the lower Mississippi Valley. Though the strong westerly wind shear will erode its tropical characteristics as it moves inland, it will serve to expand the gradient wind field and the precipitation field ahead of the remnant center of Isaias. Thus, rainfall will likely be moving into the parts of the area late Friday evening and especially after Midnight, expanding quickly from south to north. Additionally, some gradient wind gusts in the 20-30 MPH range will begin to expand across the area, especially in the predawn hours as the system progresses into west central Alabama.

Saturday will be a very windy/rainy day across the Tennessee Valley as the remnant center of Isaias tracks northward into the Tennessee Valley and Mid South from the mid/late morning through the afternoon. This is where the exact landfall point of Isaias will be critical as it will be initially swung northwestward as it interacts with the trough. Earlier guidance this morning suggested a coastal Alabama landfall, meaning the the remnant center may track more to the northwest and into portions of east central and northeastern Mississippi on Saturday. This track would potentially place us would place us in a more favorable location for locally heavy rainfall and at least a low tornado threat (if any destabilization can occur) from the mid/late morning into the afternoon on Saturday. Guidance later this afternoon/evening, indicated a western Florida Panhandle landfall and took the remnant center of Isaias over portions of west central and northwest Alabama (closest to where the 03z NHC track currently has it), potentially limiting the tornado threat slightly. Regardless, residents of the Tennessee Valley should be aware of this conditional, low threat for tornadoes on Saturday and have multiple ways to get warnings in case this threat materializes.

What we do have extremely high confidence in is that the strong gradient wind field will remain a significant concern Saturday and Saturday night as the system pushes NNE across the Tennessee Valley and into the Central/Southern Appalachians. Gusty winds well within the 30-50 MPH range seem plausible and depending on were the center of the remnant inner core of Isaias goes, some localized higher gusts would be on the table if stronger winds aloft can mix down. A High Wind Watch is in effect from 7 AM Saturday to 7 AM Sunday to highlight this concern and we will continue to monitor trends for on whether an Advisory or High Wind Warning is needed for the area as we approach the event.

Regarding the flooding potential, Hi-Res guidance continues to show the potential for some intense rain bands (north to south) to form as the system moves north on Saturday. Given the deep moisture associated with any tropical system, widespread rainfall amounts of 2-4" are already forecast, despite the fast movement of the system. Should the eventual landfall point and inland track favor these tropical rainbands moving over our area during the late morning/afternoon, locally higher amounts of rainfall up to 5-7" may occur. These rains would almost certainly cause some significant flash flooding issues and it's something we'll be watching closely for on Saturday. For this reason, A Flood Watch is in effect from 1 AM Saturday to 7 AM Sunday.

In summary, residents of the Tennessee Valley should be aware and prepared for an impactful weather day Saturday into Saturday night, with very wind/rainy conditions forecast. Please 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.

By Sunday the system will be pulling away from the region and moving well north into the central Appalachians. Breezy conditions will likely persist during the day, however, with clouds finally clearing by late in the day. For this reason, highs will be notably cooler in the mid/upper 70s.

LONG TERM

(Sunday night through Thursday) Issued at 1000 PM CDT Thu Oct 8 2026

High pressure will build in for much of the upcoming week -- a stark change from what we'll be experiencing this weekend. As a result, beautiful autumn weather will again be on tap across the area through much of the upcoming week. With ample sunshine and dry conditions highs will return to the 80s and overnight lows drop into the 50s.

AVIATION

(06Z TAFS) Issued at 1129 PM CDT Thu Oct 8 2026

VFR CIGS and winds from the east between 5 and 10 knots are expected. High clouds should keep fog at bay. Winds will become more southeasterly after 15Z on Friday around 10 knots with gusts between 15 and 20 mph possible in the afternoon.

HUN WATCHES/WARNINGS/ADVISORIES

AL...Flood Watch from late Friday night through Sunday morning for ALZ001>010-016.

High Wind Watch from Saturday morning through Sunday morning for ALZ001>010-016.

TN...Flood Watch from late Friday night through Sunday morning for TNZ076-096-097.

High Wind Watch from Saturday morning through Sunday morning for TNZ076-096-097.