textproduct: Huntsville

KEY MESSAGES

Updated at 1033 AM CDT Thu May 7 2026

- Low to medium chances for showers and a few thunderstorms return this weekend.

NEAR TERM

(Tonight) Issued at 156 PM CDT Thu May 7 2026

Pleasant afternoon across the TN Valley, with cool temps currently in the 60s. Cloud cover ranges from a few Cu in NW AL to broken to overcast Cu in NE AL. Expecting a slight increase in cloud cover tonight from clouds streaming up from the southwest, but this trend will have to be monitored. The amount of cloud cover that is attained tonight will determine who sees fog and the coverage of it as moisture lingers from recent rainfall and winds become light/variable. Otherwise, lows will be chilly in the low to mid 40s overnight.

SHORT TERM

(Friday through Saturday) Issued at 1033 AM CDT Thu May 7 2026

High pressure will be overhead on Friday and slide eastward throughout the day. Southerly winds will be light and cloud cover will be mostly sunny north of the TN River, with partly cloudy to cloudy skies south of there due to a disturbance sliding through south of us. Not a big deal though, temps will be cool in the lower 70s. Lows will be in the lower 50s with partly cloudy to mostly cloudy skies.

Friday, a longwave trough will push out the high pressure in place and a sfc low will develop in the Midwest. That sfc low will lift up into IL Friday night before swooping through the OH Valley on Saturday. A disturbance in the flow to our south will bring low rain chances (10-30%) late Friday night with higher chances south of the TN River. The cold front associated with the previously mentioned sfc low will encroach upon the CWA on Saturday, bringing an increase in moisture ahead of it and producing another round of low chances (20-30%) of showers and a few thunderstorms. Forecast sounding show general thunderstorms at this time. So if you are celebrating Mother's Day early, bring along an umbrella with you for just in case.

LONG TERM

(Saturday night through Wednesday) Issued at 1037 PM CDT Wed May 6 2026

Deeper moisture interacting with passing upper level support, will bring low to medium chances of showers and thunderstorms by Saturday night. Convection should become more numerous in coverage as we go into Sunday, when the best rain chances will be realized. Overall, storm strength looks to be "general" in intensity, with the usual gusty winds, lightning, and heavy downpours. Forecast CAPE values on Sunday range from ~500 to 1500 J/kg, with 0-3 km helicity generally less than 100 m/s. Precipitable water amounts however do increase to 1.5 to 1.6 inches; thus excessive bouts of rainfall cannot be ruled out with the heaviest convection Sunday.

The passage of a cold front, and high pressure building from the NW will bring shower activity to an end Sunday night. Dry weather will return Monday. Yes, eastern Canada upper troughing will remain in place, with a ridge west / trough east pattern becoming more established over the Lower-48 next week. Far as temperatures, a stout southerly flow will produce seasonably mild conditions Sunday, with highs to around 80. After the front passes, cooler conditions return Monday with highs nearly 10 degrees cooler, only rising to the lower 70s. Chilly conditions are expected Monday night with lows in the mid 40s. Under generally sunny skies, a bit warmer Tuesday with highs into the mid 70s. Even warmer Wednesday with highs to around 80 degrees.

AVIATION

(18Z TAFS) Issued at 1248 PM CDT Thu May 7 2026

VFR conditions will prevail through the TAF period. However, there is a potential for patchy fog 06-12Z but confidence is low that it would create a MVFR CIG reduction so kept it out of this TAF issuance.

HUN WATCHES/WARNINGS/ADVISORIES

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