textproduct: Huntsville

KEY MESSAGES

Updated at 755 PM CDT Sun Aug 30 2026

- Moderate to Major Heat Risk is forecast today through Sunday with afternoon heat indices rising between 100-105 degrees.

NEAR TERM

(Today) Issued at 416 AM CDT Mon Aug 31 2026

Prolonged upper level ridging will make for a dry but hot forecast through much of the week. Early morning temperatures have fallen to the lower 70s with clear skies and light winds allowing for good radiational cooling. Dangerous heat will be the main threat today with afternoon heat indices approaching 105 degrees in some locations. Although some locations may meet Heat Advisory criteria of 105 degree heat index, limited moisture/humidity during this stretch of hot temperatures will keep heat indices largely below 105 degrees and should keep diurnal thunderstorms out of the forecast as well. With that being said, this heat will still pose a threat to life especially for those particularly vulnerable to the heat or those without adequate cooling and hydration. Remember to stay hydrated, take frequent breaks, and never leave people or pets unattended in vehicles!

SHORT TERM

(Monday night through Wednesday Night) Issued at 755 PM CDT Sun Aug 30 2026

The mid/upper level ridge amplifies and shifts further east heading into the middle of the week. Subsidence under the ridge will keep cloud cover limited with dry weather continuing through the end of the short term period. Expect highs on Tuesday and Wednesday to rise into the mid to upper 90s with heat index values between 100-105 degrees. With the recent dry conditions, dewpoints should mix out a bit each afternoon which should keep us below advisory criteria. Regardless, even if we don't exceed advisory criteria the heat will be dangerous as WBGT rises between 87-90 degrees and Moderate to Major heat risk is forecast. Not much relief is expected overnight as lows only drop down into the lower 70s.

LONG TERM

(Thursday through Sunday) Issued at 755 PM CDT Sun Aug 30 2026

The long term forecast will offer more of the same. At the surface, high pressure will dominate, keeping temps in the mid to high 90s through the weekend. With ridging remaining in place in the mid levels too, our saving grace will be the fact that our dew points look to remain in the high 60s to low 70s. This will limit how high our heat indices can reach with uncertainty remaining on if we will meet heat advisory criteria. Inversely, since we will be slightly drier, there is some concern for over preforming on current high temperature forecasts. Some deterministic models flirt with triple digit highs this weekend. While we have low confidence in this occurring, it will be a trend we keep an eye on. From Sunday forward the forecast becomes somewhat murky. Models have picked up on a passing cold front yet are in disagreement on when and if it comes through. If the cold front does make it through on Sunday as the NBM suggest, highs will drop back to the low 90s. If the front stalls or dampens before it gets here, highs will likely remain in the high 90s through the start of the next work week. make sure to continue to practice proper heat safety and check back for updates.

AVIATION

(12Z TAFS) Issued at 619 AM CDT Mon Aug 31 2026

VFR conditions are forecast through the TAF period with clear to mostly clear skies and light/var winds.

HUN WATCHES/WARNINGS/ADVISORIES

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