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

(Rest of Today and Tonight) Issued at 953 AM CDT Tue Aug 25 2026

A very weak vort max embedded in NW flow aloft has triggered some additional cloud cover and light showers across the TN Valley this morning. Through the morning clouds and rain will continue to dissipate as we lose forcing from the vort max. By midday mostly sunny skies will prevail with our lower dew points and slightly drier air lingering for one more day. Under mostly sunny skies, highs will push into the high 80s to low 90s. With dew points remaining below 70 degrees, heat indices will remain well below triple digits. Mild conditions will continue through the night with the potential for some light rain come sunrise, see more in the short term.

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

(12Z TAFS) Issued at 645 AM CDT Tue Aug 25 2026

A broken-overcast layer of As will continue to provide cigs arnd 15 kft this morning, as a weakening upper-air disturbance tracks southeastward across the region. Although a few light SHRA may also impact the terminals at times, with cloud bases high and much of the precipitation expected to evaporate into virga, we will not mention any vsby reductions in the TAFs attm. As this system progresses further south-southeastward and out of the region, skies will partially clear from N-to-S beginning early this aftn, with only a few lingering patches of Ac/Ci expected for the remainder of the period. Lgt ENE sfc flow will prevail this morning, before becoming lgt/vrbl this aftn.

HUN WATCHES/WARNINGS/ADVISORIES

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