textproduct: Huntsville

KEY MESSAGES

Updated at 1027 AM CDT Thu Aug 6 2026

- Daily afternoon low to medium chances for showers and storms continue into next week.

- 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 Today and Tonight) Issued at 1027 AM CDT Thu Aug 6 2026

Any lingering early morning patchy fog that formed has dissipated across the area with the daytime heating. There is not much change in the recent weather pattern across the Tennessee Valley as a hot and humid airmass remains in place. In the upper levels, a trough axis centered over the central Plains has resulted in a morning MCS propagating eastward across SW MO into W KY. To our east, high pressure over the Mid- Atlantic has brought southerly flow to the local forecast area. By this afternoon, diurnal heating will initiate showers and thunderstorms. With weak flow in place, expect slow moving storms with locally heavy rainfall being the main concern. Based on the morning CAMs, precip coverage is anticipated to be a bit less than yesterday with the most favorable area across the higher terrain in portions on NE AL. Outside of the storms, temperatures are forecast to rise into the upper 80s to mid 90s with heat index values into the upper 90s to low 100s.

Showers and storms will dissipate quickly after sunset with the loss of daytime heating. Temperatures remain mild, only dropping into the lower 70s. Once again there is low chances of dense fog forming during the early morning hours Friday, especially in locations that receive rainfall this afternoon.

SHORT TERM

(Friday through Saturday) Issued at 1027 AM CDT Thu Aug 6 2026

As we head into the weekend, the aformentioned upper level trough weakens with ridging along both east and west coasts. With the warm and humid airmass in place across the Southeast, expect daily low to medium chances (20-50%) for diurnally driven thunderstorms both Friday and Saturday afternoon. While no severe storms are forecast, pwats around 2 inches suggest locally heavy rainfall may cause some ponding on roadways and flash flooding if storms train over the same location. The bigger concern is the dangerous heat. Afternoon highs will rise into the lower 90s with heat index values peaking between 98-103F. Heat risk shows a Moderate (level 2 out of 4) risk level for our entire forecast area. If you do have outdoor afternoon plans, please make sure to hydrate and limit the amount of time in direct sunlight.

LONG TERM

(Saturday night through Wednesday) Issued at 931 PM CDT Wed Aug 5 2026

Through the long term ridging will set up both at the surface and aloft just to our SE. This will maintain WSW flow and keep dewpoints in the mid 70s. Under broad ridging, highs will remain in the low 90s each afternoon. Temps in the 90s paired with dewpoints in the 70s will quickly bring heat concern back into the forecast. Heat indices look to flirt with triple digits each afternoon, yet currently remain below 105 criteria for a Heat Advisory. We will continue to monitor temperature trends should an advisory look more likely as the new work week draws closer.

Paired with heat concerns, each afternoon will have low to medium chances (30-50%) for scattered showers and thunderstorms. Without strong forcing, afternoon storms will pose little to no strong to severe risk. Rather, lightning and heavy rainfall look to be the primary threats. In weakly forced regimes like this, things can change quickly especially regarding strong to severe storms. Please check back for updates!

AVIATION

(18Z TAFS) Issued at 1230 PM CDT Thu Aug 6 2026

VFR conditions with light winds will continue through the TAF period. The one exception will be if thunderstorms move across the terminals this afternoon which would lower visibility to MVFR and have low end VFR cloud bases. Kept in a tempo group do to the scattered nature of storms today.

HUN WATCHES/WARNINGS/ADVISORIES

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