textproduct: Huntsville

KEY MESSAGES

Updated at 1056 AM CDT Tue Jul 7 2026

- Low to medium chances for showers and thunderstorms continue through the week.

- Hot and humid conditions persist with highs in the lower 90s each afternoon.

NEAR TERM

(Rest of Today and Tonight) Issued at 1056 AM CDT Tue Jul 7 2026

An upper level low situated over SE Missouri was in part inducing mean troughing from the Great Lakes to the Deep South. An otherwise warm and humid airmass remains across the greater Tennessee Valley. Rather deep moisture was present, with 12Z upper air soundings indicating precipitable water amounts of 1.8" to 2". Area temperatures ranged in the 80s with SW winds of 5-10 mph.

An area of showers and thunderstorms in progress over far NE Mississippi into far NW Alabama moving east 10-15 mph. The short term models unfortunately did not firmly catch this feature. The models however were hinting that whatever occurs should gradually fade as it moves across the forecast area this afternoon. That said, this convection moving across a warmer and more unstable environment, we cannot not rule out stronger storm with strong gusty outflow winds, frequent lightning, and very heavy rainfall. The better chances for rain today will be more over NW Alabama, with lower odds to the east. For the next few days, some or all of the area at times is under a marginal risk (1/4) for excessive rainfall and a flash flooding potential. Otherwise under partly cloudy skies and away from showers, high temperatures later this afternoon should rise into upper 80s to around 90, with heat index values from the mid 90s to 101 degrees.

Convection should gradually dissipate as we go into the evening hours. As has been the case the past few nights, the development of more late night fog cannot be ruled out. Fog would be more likely in sheltered valley locations of NE Alabama and adjacent middle Tennessee, as well as in/near locations that receive heavy rainfall. Another muggy night with lows in the upper 60s to lower 70s.

SHORT TERM

(Wednesday through Thursday night) Issued at 1056 AM CDT Tue Jul 7 2026

Upper troughing over the region should gradually flatten during Wed-Thu, with a zonal upper flow returning for the late week. In a similar environment with forecast precipitable water amounts of 1.6" to 1.8", daytime heating and resultant instability will bring scattered shower and thunderstorm chances in the afternoon. Mainly "general" thunderstorm strength is expected, with a risk of strong gusty winds, frequent lightning and heavy downpours. High temperatures for the mid week should rise into the upper 80s to lower 90s, with corresponding heat index values in the mid/upper 90s. Shower chances should fade Wed night with a loss of daytime heating. Lows again should fall from the upper 60s to lower 70s.

An almost repeat forecast for Thu with high temperatures again upper 80s to lower 90s, with heat index mid 90s to 101 degrees. The daytime heating and resultant instability will bring scattered showers and thunderstorms mainly in the afternoon hours. Gusty winds, frequent lightning, and heavy downpours again the main threat posed by the stronger storms. Lows Thu night should cool only into the lower 70s

LONG TERM

(Friday through Monday) Issued at 902 PM CDT Mon Jul 6 2026

The upper low finally gets pushed off to the east on Friday as a more zonal flow takes shape across the Southeast. This will limit the coverage in showers and storms on Friday afternoon. A weak cold front begins to drop southward this weekend. While this will not provide much relief to the warm and humid airmass, it will provide a more favorable area for showers and storms to develop. Therefore, medium (40-70%) chances of afternoon showers and storms are forecast both Saturday and Sunday. An upper level trough digs down along the East Coast on Monday. This will bring northerly flow to the local forecast area. As a result, only low chances for precip is forecast on Monday. Throughout the long term period, afternoon highs are forecast to be in the upper 80s to lower 90s with overnight lows in the lower 70s.

AVIATION

(12Z TAFS) Issued at 558 AM CDT Tue Jul 7 2026

A mixture of VFR to MVFR to LIFR conditions were observed at issuance across north Alabama. The low CIGs are mostly due to a low stratus deck that formed overnight, not necessarily just due to patchy/dense fog like we originally anticipated. Although, there are some locations where VIS has been reduced due to fog formation. Regardless, expecting these conditions to persist for the next few hours, dissipating through mid-morning. As mentioned previously, the main concern will then shift to the shower and storm activity this afternoon/evening. There remains uncertainty in exactly where and when the storms will develop and track; however, these may bring temporary reductions in VIS and CIGs as well as gusty winds and frequent lightning where they do develop. Expecting most activity to then wane through the early evening hours, with little to no showers/storms by the late evening and into the overnight hours. Otherwise, expect westerly winds around 5 knots or so through the day (outside of storms), with calm winds developing in the evening.

HUN WATCHES/WARNINGS/ADVISORIES

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