textproduct: Huntsville

KEY MESSAGES

Updated at 826 PM CDT Thu Aug 6 2026

- Daily afternoon low to medium chances for showers and storms continue through the next 7 days.

- NWS Heat risk rises to Moderate (level 2 out of 4) risk today through the weekend and then increases to Major (level 3 out of 4) early next week for portions of the area.

NEAR TERM

(Rest of tonight and Friday) Issued at 826 PM CDT Thu Aug 6 2026

A few showers and thunderstorms remain late this evening along remnant outflow boundaries, but this activity should wane with the loss of daytime heating in the next hour or so. Lingering cloud cover should largely dissipate, especially after Midnight -- with mostly clear conditions prevailing in most locations overnight. As a result of the mostly clear and calm conditions, localized patchy fog may develop in areas that received rainfall earlier today (most especially in northeast Alabama). A weak mid/upper trough will remain in place over the Tennessee Valley again on Friday. This feature will provide enough support (along with diurnal heating) to generate afternoon/evening showers and thunderstorms (20-50%). With PWATs exceeding 2", locally heavy downpours will be the biggest concern, but localized gusty winds will also be a threat with the strongest activity. Otherwise, a very warm and humid day, with highs in the upper 80s to lower 90s.

SHORT TERM

(Friday night through Sunday) Issued at 826 PM CDT Thu Aug 6 2026

We will remain in a similar pattern on Saturday, with high pressure at the surface and a weak mid/upper trough slowly moving across the region. This will result in very warm, humid days, with highs in the upper 80s to lower 90s and low to medium (30-60%) chances for afternoon showers and thunderstorms once again. Locally heavy downpours and gusty winds will continue to be the main threats with this activity that develops during the afternoon and then weakens/dissipates by the evening and overnight hours. The trough will begin to shift east by Sunday as an upper-ridge begins to nudge in from the west. Subsidence from this ridge will lower rain chances temporaily on Sunday (10-30%), with heat coming to the forefront of concern with peak heat index values between 100 to 105 degrees in most locations in the afternoon.

LONG TERM

(Sunday night through Thursday) Issued at 826 PM CDT Thu Aug 6 2026

The broad area of high pressure will flatten during the early to middle part of next week and potentially begin to retrograde back to the west by Wednesday and Thursday. Regardless, the forecast will remain the same for much of the week ahead, very warm and humid with daily chances for diurnally driven convection in the afternoon (thanks to the tropical air mass in place underneath this ridge). As a result, heat/humidity and the threat for thunderstorms will remain at the forefront of our messaging. Each day next week, highs will peak in the upper 80s to lower 90s (with peak afternoon heat index values between 100 to 105 degrees) in most locations. NWS Heat Risk highlights a moderate (Level 2/4) threat level in most locations Monday through Thursday, with a few of the metro areas (MSL, DCU, HSV) in the Major (Level 3/4) category.

Coinciding with these heat concerns, the atmosphere will remain primed for low to medium (20-50%) chances for afternoon showers and thunderstorms. This activity will be capable of producing locally heavy downpours and potentially localized gusty winds with the strongest activity.

AVIATION

(00Z TAFS) Issued at 540 PM CDT Thu Aug 6 2026

VFR conditions will be the predominant flight category at each terminal through the period. TSRA may develop again Friday afternoon, but low confidence in coverage and location prevented a mention in the TAF at this time.

HUN WATCHES/WARNINGS/ADVISORIES

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