textproduct: Huntsville

KEY MESSAGES

Updated at 936 PM CDT Tue Sep 29 2026

- Medium to high (40-80%) chances of showers and thunderstorms will return to the forecast late this week into the weekend, with locally heavy rainfall the main concern.

- Temperatures will be on the rise through Friday, with increasing humidity yielding a Moderate Heat Risk (Level 2/4) in some areas Thursday and Friday.

NEAR TERM

(Today) Issued at 243 AM CDT Wed Sep 30 2026

Tranquil conditions are once again ongoing this morning with morning temperatures in the mid to upper 50s, which is running a bit warmer than the previous few morning. This is in part to weak southeasterly sfc flow advecting in better moisture. As the upper level ridge expands eastward today, expect another mild afternoon with highs in the upper 80s to lower 90s. With the aformentioned moisture advection, dewpoints should not mix out nearly as much today and remain in the lower 50s. Therefore, heat index values will remain near the air temperatures this afternoon.

SHORT TERM

(Wednesday night through Friday) Issued at 936 PM CDT Tue Sep 29 2026

The aforementioned upper level ridge will continue to yield dry conditions through Thursday as highs rise into the lower 90s with overnight lows in the 60s. A pattern change is in store Friday as ridging shifts to the east and an upper level trough pushes into the area from the west. Southerly flow will bring increased moisture with rising dew points ahead of an approaching cold front. Subsequently, low to medium rain chances (20-40%) will begin Friday afternoon and increase through the weekend. More on this in the long term below.

LONG TERM

(Friday night through Tuesday) Issued at 936 PM CDT Tue Sep 29 2026

By the start of the long term we will be beginning a pattern change. To our west, an upper level trough will begin its swing through the TN Valley. At the surface, an accompanying cold front will be pushing east. Several days of weak WAA will be present along and ahead of this system. As such, come Friday night we will have an incredibly moist environment present, priming us for a weekend of flooding concerns.

Going into the weekend we will see dew points in the 70s and PWATs above the 90th percentile per BMX sounding climatology (2"+). This environment will be favorable for efficient rainfall production. With persistent forcing from Friday night through Sunday afternoon, high rain chances (60-80%) are in the forecast all weekend. Models indicate 2-4 inches of rain from Friday through Monday. Flooding concerns will arise if periods of heavy rainfall cause significant amounts of rain to fall in a short period of time. As such, WPC has issued a Slight Risk (level 2/4) for excessive rainfall for portions of the area on Saturday into Sunday. Some uncertainty remains regarding the QPF totals due to the fact the front and parent trough will be weakening as they move through. Should the system come through weaker than currently forecast, QPF amounts could trend down.

The front is currently forecast to pass during the day on Sunday, however low rain chances and cloud cover look to linger behind the front through Tuesday. The lingering cloud cover paired with the slow infiltration of cooler and drier air from the north will keep highs in the 70s and lows in the 50s for the start of the work week.

AVIATION

(12Z TAFS) Issued at 534 AM CDT Wed Sep 30 2026

VFR conditions with light winds continue through the TAF period.

HUN WATCHES/WARNINGS/ADVISORIES

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