textproduct: Huntsville

KEY MESSAGES

Updated at 816 PM CDT Wed Sep 9 2026

- Medium chances for showers and storms Friday into Saturday with low chances continuing through Tuesday.

- NWS Heat Risk will remain in the Minor to Moderate category throughout the forecast period.

NEAR TERM

(Tonight) Issued at 131 PM CDT Thu Sep 10 2026

Another tranquil afternoon across the Tennessee Valley, with high pressure in control of our sensible weather. Model soundings continue to exhibit a very dry profile, indicative of strong subsidence from the ridge. As a result, think it will be very difficult to get much diurnally driven convection this afternoon. This is evident in the very flat Cu field in place across the region as noted on visible satellite imagery. These clouds will dissipate after sunset, with another mostly clear sky forecast overnight. With clear/calm conditions in place, overnight lows will drop into the upper 60s to lower 70s once again.

SHORT TERM

(Friday through Saturday Night) Issued at 753 AM CDT Thu Sep 10 2026

The disturbance over MS and southwest AL will lift northeast on Friday, spreading medium chances (30-50%) of showers and thunderstorms over the TN Valley, along with higher PW values and dew points in the 70s. Then, a trough axis will pivot east from the central Plains into the mid South and TN Valley on Saturday, elevated shower and thunderstorm chances to high (70-90%). Deep layer bulk shear values will be fairly low, so slower moving storms and high PW values will lend to a risk heavy rainfall both Friday and Saturday, with a marginal risk of Excessive Rainfall outlooked by WPC. High temperatures will be stunted by the clouds and precipitation, with middle 80s to around 90 expected on Saturday. Lows will be in the upper 60s to lower 70s given the high dew point values.

LONG TERM

(Sunday through Wednesday) Issued at 816 PM CDT Wed Sep 9 2026

Through the long term forecast, high pressure looks to build in again over the mid Atlantic states and extend back into the TN Valley. This will induce weak SSW flow at the surface and keep humid summer like conditions in place each day. Highs looks to remain in the 90s with dew points in the high 60s to low 70s. This will push heat indices near and above triple digits each day. While not approaching any records, these temperatures and dew points will be unseasonably high, presenting more like summer than mid September. Please make sure to continue to practice proper heat and sun safety during our continued hot and humid conditions.

Due to the higher humidity for mid September, we will have low chances for rain and perhaps a stray thunderstorm each afternoon. Coverage currently looks very scattered. Without any specific forcing mechanism it will be hard to nail down specific times or locations that may have better chances for rain. Please check back for updates regarding our low rain chances next week.

AVIATION

(00Z TAFS) Issued at 536 PM CDT Thu Sep 10 2026

VFR conditions will prevail through tomorrow afternoon. After 18Z tomorrow, rain and storm chances will begin to increase. Storm coverage looks scattered and thus hard to nail down exact timing and location. If a storm did move directly over either terminal, brief reductions in ceilings and visibilities would be likely. Subsequent TAF updates will refine timing and intensity of storms as needed.

HUN WATCHES/WARNINGS/ADVISORIES

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