textproduct: Huntsville

NEAR TERM

(Rest of Today and Tonight) Issued at 959 AM CDT Sun Aug 31 2025

High pressure at the surface will gradually shift a little further to the east today, but still remain the dominant weather feature across the Tennessee Valley. As a result, expect generally mostly sunny to perhaps partly cloudy conditions at times through the remainder of the day. Highs once again will be warm and seasonable for this last day of August, peaking in the upper 80s to lower 90s, with ample sunshine. We could have a few passing clouds overnight, but think that overall mostly clear and calm conditions will be the rule again, resulting in a good setup for radiational cooling. Low temperatures in the lower 60s will be common again.

SHORT TERM

(Monday through Wednesday) Issued at 959 AM CDT Sun Aug 31 2025

A couple of shortwaves rippling southeast along a broad upper- trough across the eastern CONUS will pivot into the Mid South on Monday (Labor Day), bringing a return of low chances (20-30%) for showers and thunderstorms during the afternoon and evening hours. An even stouter shortwave will pass into the Tennessee Valley Tuesday into Wednesday, helping to force a frontal boundary into the region. Some added shear from this feature, combined with appreciable instability could allow for at least a few strong, more organized thunderstorms capable of gusty winds and locally heavy rainfall. PoPs have added increased slightly to 30-60% during this window and think everyone will have a decent shot of seeing at least some precipitation during the Monday to Wednesday timeframe. The added cloud cover and rain chances will help lower high temperatures by a few degrees, especially Tuesday and Wednesday, with highs in the upper 70s to mid 80s.

LONG TERM

(Wednesday through Saturday) Issued at 842 PM CDT Sat Aug 30 2025

By mid week, a low pressure system is forecast to push southward into the Great Lakes region- bringing the shortwave southeastward into the Ohio River and northern Tennessee Valleys. A subsequent cold front is forecast to form and push southeastward by Thursday. There continues to be slight disagreement on the eventual placement of the aforementioned shortwave and adjacent cold front, however, trends continue to point towards the feature remaining north of our CWA (primarily in middle Tennessee). Therefore, continued with blended guidance of low to medium chances of showers/thunderstorms Wednesday through Thursday. The LREF shows limited CAPE (~300-500 J/kg) with relatively weak shear and unimpressive low level lapse rates (~6 C/km) Wednesday evening. We will continue to monitor this trend as we push into early next week. Post-frontal conditions are forecast to be cooler and dry with dew points dropping into the low 50s by the weekend.

AVIATION

(12Z TAFS) Issued at 615 AM CDT Sun Aug 31 2025

Dry air in the boundary layer should keep any fog from forming at the terminals this morning. VFR conditions are expected throughout the TAF period.

HUN WATCHES/WARNINGS/ADVISORIES

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