textproduct: Huntsville

KEY MESSAGES

Updated at 912 AM CDT Sat Oct 10 2026

- The remnants of Isaias will continue to progress over the Tennessee Valley today, bringing high chances for impactful gusty winds up to 40-60 mph, a low to medium chance for flash flooding, and a very low, conditional chance of tornadoes through tonight.

- A High Wind Warning remains in effect for portions of north- central and northeast AL through 7 PM this evening. A Wind Advisory also remains in effect for the remaining counties through 7 PM this evening.

- A Flood Watch remains in effect through 7 AM Sunday.

NEAR TERM

(Rest of Today and Tonight) Issued at 912 AM CDT Sat Oct 10 2026

A band of steady, moderate rainfall from the remnants of Isaias is pushing northwest into eastern and middle Tennessee, with pockets of light to at times moderate rain continuing over much of north Alabama and southern middle Tennessee. A dry (air) slot can be seen via the low, mid, and upper level water vapor imagery moving up from the Gulf. This is expected to push much of the rain from this morning out of the area through late this morning. However, Hi-Res guidance suggests that any instability that can be realized will most likely be over NE AL to southern middle TN and along the AL/GA border (where redevelopment of shower activity is most likely this afternoon). In a tropical environment, even a small amount of instability is sufficient. Thus, this, along with ample shear, keeps at least a low chance of convection (storms) this afternoon and into early this evening. In addition, current VAD wind profiles indicate plenty of helicity over the region. Therefore, the very low chance of a tornado or two also continues this afternoon but confidence is low. Ultimately, please continue to stay weather aware and have multiple ways of receiving warnings! With the loss of daytime heating, any threat of storms is expected to diminish through mid-evening.

Interesting ripple signatures have been noted via radar velocity moving into northeast Alabama this morning. This could be indicative of ducting or turbulent air that could mix down to the surface, supporting the concern for higher wind gusts (50-60 mph) picking up over portions of north-central AL and NE AL over the next few hours (where a High Wind Warning is in effect until 7 PM). Wind gusts have already started to pick up over these locations in the past hour or so, but also for areas west where a Wind Advisory remains in effect until 7 PM. We've also already received numerous reports of trees down and some power outages so far this morning, and this is likely to persist and/or increase through the day today. Overall, remain vigilant and be careful of debris and/or power lines on roads! Be cautious when traveling as well, especially if you have a high-profile vehicle!

Wrap around moisture from the remnants of Isaias will keep low to medium (20-50%) chances of showers in the forecast tonight. The Flood Watch remains in effect until 7 AM Sunday; however, with the dry slot moving into the region, confidence in flash flooding is decreasing. This will be monitored. Furthermore, although the aforementioned higher winds will gradually decrease this evening, gusts to between 20-30 mph are still likely overnight (with higher winds over the higher terrain).

SHORT TERM

(Sunday through Monday) Issued at 912 AM CDT Sat Oct 10 2026

With what's left of Isaias (that has/is merging into the upper level flow/trough) lifting to the northeast on Sunday, expect perhaps some lingering showers (low chances, 10-30%) especially for NE AL and portions of southern middle TN. However, by Sunday evening, dry weather will take hold as upper level ridging moves into the region and this will persist through at least Monday. While some wind gusts to around 20-25 mph may persist through much of the day on Sunday, winds really drop off into early next week. With upper ridging and high pressure over the South by Monday, temperatures increase from the 70s this weekend into the mid to upper 80s on Monday.

LONG TERM

(Monday night through Friday) Issued at 1102 PM CDT Fri Oct 9 2026

The upper ridging is expected to strengthen over the southeast Monday into the middle of next week. The sunny skies and building upper level winds will make for a very warm conditions with highs climbing back into the mid to upper 80s and lows in the lower 60s.

An upper level low and associated longwave trough axis makes some slight progress pushing east into the upper ridge over the area towards the end of the week/weekend. However, over much of the area the surface and upper ridge remain stout. However, enough forcing aloft and moisture convergence does setup over much of Tennessee to produce some precipitation over that area. Our southern middle Tennessee counties could see some low end precipitation chances, but consistency is too low to include at this time. Most guidance does push a dry cold front through the area Friday or Friday night. This will bring cooler weather to to the area that is more seasonable into the weekend.

AVIATION

(12Z TAFS) Issued at 547 AM CDT Sat Oct 10 2026

The remnants of Hurricane Isaias are moving through the Tennessee Valley this morning and will bring periods of moderate to locally heavy rainfall into the early to mid afternoon. This system will bring very gusty winds (between 20-30 kts) out of the ENE to ESE, with locally higher gusts at times, along with LLWS of 40-50 kts at 2 kft. Collectively these conditions will result in MVFR to IFR conditions, due to low ceilings between 500 ft to 1500 ft. AWWs may be needed if thunder develops at either site, but the probability is low.

HUN WATCHES/WARNINGS/ADVISORIES

AL...Flood Watch through Sunday morning for ALZ001>010-016.

Wind Advisory until 7 PM CDT this evening for ALZ001>005.

High Wind Warning until 7 PM CDT this evening for ALZ006>010-016.

TN...Flood Watch through Sunday morning for TNZ076-096-097.

Wind Advisory until 7 PM CDT this evening for TNZ076-096-097.