textproduct: Huntsville

KEY MESSAGES

Updated at 1015 AM CDT Wed Apr 1 2026

- A warm, moist air mass will remain in place through the week, with highs in the upper 70s to lower 80s each day, and lows in the 60s.

- Low to medium shower and thunderstorm chances are forecast today through Saturday. Some stronger storms could develop by Saturday night into Sunday morning as cold front moves through the region.

NEAR TERM

(Tonight) Issued at 234 PM CDT Wed Apr 1 2026

At this hour, we have southerly gusts around 15 kts and showers scattered in nature across the TN Valley. Convection is moving NNE and will see a few lightning strikes from it, but nothing strong or severe anticipated. Even though the entire forecast area is in great need of rainfall, not all of us may see it as coverage will remain low. Convection is expected to dissipate with sunset and cloud cover will decrease thereafter, leaving partly cloudy skies in place tonight. Lows will be unseasonably mild in the upper 50s to lower 60s.

SHORT TERM

(Thursday through Saturday) Issued at 1015 AM CDT Wed Apr 1 2026

Unseasonably warm temps will persist and the pattern will be unsettled through the short term forecast period. Tomorrow, a trough will swing through the Plains and into the Midwest before jetting up into the upper Great Lakes on Friday. This will push the high pressure further off the Atlantic coast. The associated sfc low will remain well to our north and west with only low chances (10-20%) of showers and a few thunderstorms on Thursday and Friday. Daytime highs will continue to be unseasonably warm in the low to mid 80s.

On the heels of the previously mentioned trough will be a larger trough that will deepen across the Rockies on Friday, before it too swings into the Midwest and Great Lakes region on Saturday. This sfc low will also stay well to our north, located up in the upper Midwest on Saturday. However, the associated cold front will drape down along the MS Valley and back into the Southern Plains on Saturday morning. The front will push eastward throughout the day on Saturday, increasing cloud cover and WAA with southerly wind gusts 10-20kts. This will help push highs into the lower 80s despite the cloud cover. There is a lack of agreement on how quickly showers and thunderstorms will start to spread across the TN Valley on Saturday so stuck with the NBM guidance for this forecast package. This has low to medium chances (30-60%) by Saturday afternoon with of course the highest chances arriving with the front overnight. Additional information regarding the frontal passage can be found in the Long Term section below.

LONG TERM

(Friday night through Tuesday) Issued at 932 PM CDT Tue Mar 31 2026

An upper level trough looks to move over the Mississippi River Valley this weekend, with a shortwave moving along the flow over the Ohio Valley early next week. Meanwhile, a low pressure system will strengthen and pivot up into the Midwest and Great Lakes region by the weekend. The associated cold front is slated to traverse the Tennessee Valley on Saturday, moving to the east by Sunday morning. High pressure is then expected to build into the region from the west through early next week. Model guidance therefore expects medium to high chances of rain from Saturday morning through Sunday. Models currently show sufficient shear for thunderstorm development, but values are below 30 knots at this time. Instability shown by synoptic guidance is fairly low at the moment; however, with surface temperatures forecast to reach the lower 80s, I would expect these values to increase. Lastly, the greater upper dynamics (jets) look displaced to the north (closer to the parent low). Therefore, confidence in any strong to severe storms is low; however, the potential is certainly something to watch this time of year. Make sure to check back for updates as we get closer in time and details become clearer.

After FROPA on Sunday, shower and storm chances diminish and a fairly decent cool down is in store. Highs are forecast to only top out in the 60s with lows dropping into the 40s Sunday night! Although, this cooler weather will be fairly short-lived, as temperatures then warm back up into the 70s once again for Tuesday.

AVIATION

(18Z TAFS) Issued at 1252 PM CDT Wed Apr 1 2026

CIGS are currently fluctuating between VFR and MVFR as scattered showers have developed and moving NNE towards the terminals. Convection is expected to dissipate ~21Z, then cloud cover will start to scatter out thereafter. Conditions will be dry for the rest of the TAF period, but southerly wind gusts 15-20kts will pick up shortly after sunrise tomorrow.

HUN WATCHES/WARNINGS/ADVISORIES

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