textproduct: Huntsville

KEY MESSAGES

Updated at 953 AM CDT Tue Aug 25 2026

- Low to medium chances for showers and thunderstorms will exist from Wednesday-Friday. The primary hazards will be locally excessive rain and lightning. There is a low chance for a few strong storms with gusty winds, as well.

NEAR TERM

(Tonight) Issued at 103 PM CDT Tue Aug 25 2026

Tranquil weather across the Tennessee Valley this afternoon with high pressure at the surface and a weak front still south of the region. Any cloud cover that has developed should largely dissipate by this evening and with clear/calm conditions it should be a good setup for radiational cooling as temperatures will fall back into the 60s. Late tonight into early Wednesday morning, clouds (and potentially some very low rain chances 10-15% in NW Alabama) may increase as the remnants of nocturnal convection may approach the area. This is very uncertain, however, and could easily see any precipitation holding off until after sunrise on Wednesday - something we'll be monitoring over the course of the evening.

SHORT TERM

(Wednesday through Friday) Issued at 953 AM CDT Tue Aug 25 2026

Through the short term forecast NW flow will provide just enough forcing to maintain chances for rain and storms through nearly the whole period. CAMs have been struggling for the last several weeks in this pattern which gives me very little faith in their current output. Likewise, CAMs current vary significantly regarding spatial and temporal coverage of showers and storms from Wednesday to Friday. With several shortwaves along with a weak front passing, there will be enough forcing to support numerous rounds of light to moderate showers and storms each day. The first of these looks to arrive tomorrow morning with a low chance of showers in NW AL around sunrise. Best chances for showers and storms tomorrow afternoon look to be in NW AL however morning convection will significantly impact how the afternoon unfolds. If we are able to destabilize, it looks like we will obtain enough CAPE to support some strong to severe storms through the afternoon with damaging winds being the main threat.

It is currently unclear if we will see a true break in cloud cover and rain chances from Wednesday afternoon forward with each CAM showing a different solution to passing shortwaves and associated MCS/areas of storms. As the approaching front draws near both our dew points and PWATs will increase which will further enhance our prolonged elevated rain chances. Low to medium rain chances will remain in the forecast from Wednesday night to Friday morning. We will be keeping an eye on Thursday afternoon for higher chances of strong to severe storms due to afternoon instability. The good news is through the whole period we will be lacking any significant shear, which will limit our severe threat. Any storms that do develop will lack the ability to get/stay organized and make for a rather messy radar appearance with heavy rainfall and gusty winds being the main threats.

LONG TERM

(Thursday night through Monday) Issued at 806 PM CDT Mon Aug 24 2026

The aforementioned frontal passage is forecast late Thursday night into early Friday, maintaining low to medium rain chances ahead of and along the front. As the upper level ridge and subsequent sfc high becomes centered over the southeast U.S., dry conditions return area- wide by Saturday and will likely be maintained through Monday. Highs during the long term period are forecast to warm into the low to mid 90s with heat indices reaching the upper 90s to around 100 degrees. No heat products are on the horizon for now, however, heat safety precautions are still encouraged to avoid heat illness. Be sure to stay hydrated and seek shade if outdoors.

AVIATION

(18Z TAFS) Issued at 1135 AM CDT Tue Aug 25 2026

VFR conditions will be the predominant flight category at each terminal through the period with light winds out of the SSE. Late in the period, we will monitor a very low chance of a few SHRA/TSRA that may be approaching the region. However, probabilities were too low to warrant including this in the TAF at this time.

HUN WATCHES/WARNINGS/ADVISORIES

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