textproduct: Huntsville

KEY MESSAGES

Updated at 823 PM CDT Wed Sep 30 2026

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

- Moderate Heat Risk (Level 2/4) in some areas Thursday and Friday.

NEAR TERM

(Rest of tonight and Thursday) Issued at 823 PM CDT Wed Sep 30 2026

Under the influence of an upper level ridge and subsequent sfc high pressure, we will continue to experience dry conditions overnight into Thursday. Low temperatures are forecast to drop into the low to mid 60s Thursday morning before warming back into the lower 90s yet again by the afternoon hours.

SHORT TERM

(Thursday night through Saturday) Issued at 823 PM CDT Wed Sep 30 2026

A continued warm up is anticipated through the short term as an upper level ridge continues to hold over the area. Accompanied by dry conditions and mostly clear skies, highs are forecast to reach the lower 90s again Friday as southerly flow dominates the area. This southerly flow will advect moist conditions into the Tennessee Valley with PWATs approaching 1.9-2.1" by Friday night into Saturday. As the aforementioned ridge shifts eastward, an approaching upper level trough and subsequent cold front will approach from the west on Friday, bringing increased rain chances ahead of the front. Friday afternoon into the evening, low to medium chances (30-50%) of showers and thunderstorms will exist, with the higher chances of rain remaining in NW AL and north of our area.

These higher chances increase with the approaching cold front from NW to SE Saturday morning, bringing medium to high chances (60-80%) area-wide by Saturday afternoon. The main concern with thunderstorms will be the potential for flash flooding as PWATs approach max values within sounding climatology per BMX and slow storm motion is anticipated (less than 10 mph). Saturday into Sunday morning, the Weather Prediction Center (WPC) has outlooked most of our area in a Slight risk (level 2 of 4) for flash flooding. If you have outdoor interests this weekend, be sure to stay updated on the latest forecast as we progress into the end of the work week.

LONG TERM

(Saturday night through Wednesday) Issued at 823 PM CDT Wed Sep 30 2026

The aforementioned front will continue to slowly push ESE across the Tennessee Valley Saturday night into Sunday, with medium chances (40-60%) of showers and a few storms moving ahead of and along the boundary. WPC has placed much of the area under a Marginal Risk (Level 1/4) for excessive rainfall impacts, meaning that a low chance of flooding will persist into Sunday, with locally heavy rainfall occurring with some of this activity (thanks to PWATs near 2"). The front should begin to sag south late in the day and into the evening and overnight hours, as a stronger longwave trough over the Great Lakes and Ohio Valley finally nudges it to the southeast. In it's wake, expect a cooler, drier air mass to move in early next week and a surface high building in from the north. This will mean beautiful autumn weather for the first week in October, with highs in the lower 80s and lows in the low to mid 50s.

AVIATION

(00Z TAFS) Issued at 531 PM CDT Wed Sep 30 2026

VFR conditions with light winds and a mostly clear sky is forecast through the period.

HUN WATCHES/WARNINGS/ADVISORIES

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