675
FXUS64 KHUN 011118
AFDHUN

Area Forecast Discussion
National Weather Service Huntsville AL
618 AM CDT Tue Sep 1 2026

...New AVIATION...

.KEY MESSAGES...
Updated at 840 PM CDT Mon Aug 31 2026

 - Hot and humid conditions to persist through next weekend, with
   Moderate to Major HeatRisk along with afternoon heat indices
   rising to between 100-106 degrees.

&&

.NEAR TERM...
(Today)
Issued at 219 AM CDT Tue Sep 1 2026

Stacked high pressure will continue to keep skies mostly clear
and winds very light today as heat will once again be our main
concern. Upper level ridging will shift slightly east today,
centering more over the lower OH and TN Valleys. This will work to
bump temperatures up a few degrees with afternoon highs peaking
in the mid to high 90s. Despite the higher temps, dew points in
the lower 70s will help keep this particular heat wave slightly
less intense in terms of how high afternoon heat indices reach.
While most locations should stay under the 105F threshold for a
Heat Advisory today, some urban locations may see 105F+ heat
indices. However, coverage does not look to be widespread enough
to warrant any heat product issuances at this time. Nonetheless,
heat will be a concern with or without heat headline so please
make sure to continue to practice proper heat safety!

&&

.SHORT TERM...
(Tuesday night through Thursday night)
Issued at 840 PM CDT Mon Aug 31 2026

Through the short term period mid level ridging will continue to
build over the TN Valley. This will continue our warming trend
with highs in the upper 90s each afternoon. Without any prominent
pattern changes dew points will remain unchanged with each
afternoon seeing values in the low to mid 70s. While these lower
dew points will keep us from widespread oppressive heat, heat
indices do look to nudge over 105 by Thursday. There is currently
uncertainty regarding how wide spread these values will be seen
across the area, thus heat product decisions are likely still
24-48 hours out. Regardless of heat headline decisions, it will be
important for those partaking in outdoor activities to continue to
practice proper heat safety.

&&

.LONG TERM...
(Friday through Monday) I
issued at 840 PM CDT Mon Aug 31 2026

Not much change is expected in the overall weather pattern as we head
through the long term period. Dangerous heat continues to be a threat
through at least Sunday with Heat Risk forecast to remain at moderate
(level 2 of 4) to major (level 3 of 4). The upper level ridge
remains entrenched over the central and southeastern US with high
pressure dominant underneath. As a result, hot and dry conditions
continue through the weekend. While we cannot rule out a low (10-20%)
chance of an isolated thunderstorm each afternoon, confidence is
quite low in this occurring and most locations will likely remain
dry. Afternoon highs each afternoon will rise into the mid to upper
90s with heat indices between 100-105F. The dome of high pressure
begins to recede back to the west on Monday, which will provide some
relief to the heat with afternoon highs only in the lower 90s.
However, models continue to trend later with this occurring and it
will be something we will watch as we get closer in time.

&&

.AVIATION...
(12Z TAFS)
Issued at 618 AM CDT Tue Sep 1 2026

VFR conditions are forecast today with clear skies and light
southeasterly winds below 5kts.

&&

.HUN WATCHES/WARNINGS/ADVISORIES...
AL...None.
TN...None.
&&

$$

NEAR TERM...25
SHORT TERM....RAD
LONG TERM....GH
AVIATION...25