textproduct: Huntsville

KEY MESSAGES

Updated at 1016 PM CDT Sun Sep 27 2026

- A warming trend will take place this week with increasing humidity yielding a Moderate Heat Risk (Level 2/4) in some areas Wednesday through Saturday. - Low to medium chances of thunderstorms will return to the forecast late this week into the weekend.

NEAR TERM

(Today) Issued at 309 AM CDT Mon Sep 28 2026

A cool start to the work week as early morning temperatures are in the upper 40s to lower 50s. The overall weather pattern remains unchanged today as we sit between the sfc low along the East Coast and an expanding upper level ridge to our west across the Plains. With northerly to northeasterly flow aloft, a cool and dry airmass continues to remain in place. Therefore, afternoon highs once again warm into the low to mid 80s. The one concern today is the very dry conditions leading to an elevated fire risk. 00z soundings from both BNA and BMX show a very dry layer at around 850mb. As we warm up during the day, this dry layer will get mixed down causing our sfc dewpoints to drop down into the lower 40s which pushes RH values into the 25-30% range. Winds are forecast to be light today so red flag conditions will not be met.

SHORT TERM

(Monday night through Wednesday) Issued at 1016 PM CDT Sun Sep 27 2026

The aforementioned ridge will begin to center more over the MS River Valley during the short term period while sfc high pressure slowly pushes toward the Atlantic coast but keeps the higher moisture at bay until late Wednesday. Temps will warm into the upper 80s on Tuesday then reach the 90 degree mark in several locations Wednesday. We will maintain a dry forecast with the main concern being the heat. Afternoon heat indices will top out near 90 degrees on Wednesday so we will remain below heat advisory criteria, but these temperatures will still pose a risk for heat related illness for those without proper hydration or those doing strenuous activities outdoors without a break. Remember to never leave people or pets unattended in vehicles!

LONG TERM

(Wednesday night through Sunday) Issued at 1016 PM CDT Sun Sep 27 2026

Thursday will bring one more hotter than normal day before a potentially wetter pattern develops into the weekend. An upper ridge will be holding tight over the southeast U.S. Thursday into Friday as a sluggish upper low sits over the southern High Plains. Complicating this pattern will be a TUTT over the central Gulf of America that will be lifted northward on Saturday into Sunday across the Gulf States. This will produce a stout southerly tropical flow into the mid South and TN Valley, yielding increasing rain and thunderstorms over a wide area. Another feature that will help this regime will be a wedge front that will be dropping southwest through the Carolinas into GA and perhaps far northeast AL, providing another isentropic lifting source. The upper low finally becomes an open wave on Sunday lifting into the OH Valley and absorbing the TUTT into the flow across the TN Valley and eventually OH Valley. Thus low to medium chances of rain and thunderstorms exist starting Thursday and Friday, and increasing Saturday and Sunday. With the tropical flow, temperatures will be held in the upper 70s to lower 80s by the weekend, with dew points in the upper 60s to lower 70s. It is too early to specify the excessive rainfall risk, but it will certainly be monitored through the week.

AVIATION

(12Z TAFS) Issued at 537 AM CDT Mon Sep 28 2026

VFR flight conditions with light winds are expected through the forecast period.

HUN WATCHES/WARNINGS/ADVISORIES

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