080
FXUS64 KHUN 101637
AFDHUN

Area Forecast Discussion
National Weather Service Huntsville AL
1137 AM CDT Sun Aug 10 2025

...New AVIATION...

.NEAR TERM...
(Rest of Today and Tonight)
Issued at 1029 AM CDT Sun Aug 10 2025

Under mostly clear skies temperatures have heated into the high
70s to low 80s as of about 9:30 AM. High pressure over the
eastern CONUS both at the surface and aloft will aid in keeping a
large majority of the area dry today. 12Z soundings from BMX and
OHX show a nice dry layer of air above 700 MB, also contributing
to keeping rain chances below 10%. Without any competing factors,
afternoon highs will rise into the low 90s for areas west of
I-65. East of I-65, temps will be a few degrees cooler due to both
the terrain and expected slightly higher cloud coverage. With dew
point still remaining the 60s and low 70s, heat indices will
struggle to break 100. Even so, proper sun and heat protection
will be necessary for anyone spending time outdoors. The benign
conditions will continue overnight with temps dropping into the
low 70s.

&&

.SHORT TERM...
(Monday through Wednesday)
Issued at 1029 AM CDT Sun Aug 10 2025

A slightly wetter pattern will develop over the short term
forecast as we become sandwiched between high pressure to our SSE
and troughing to our north. At the start of the period, high
pressure off the SE Atlantic coast will induce stronger ESE flow
through the TN Valley. This will allow for our PWATS and dew
points to slowly increase through mid week moistening the local
atmospheric column as the high pressure retrogrades across the FL
Peninsula. Simultaneously, and upper trough will begin to push
east providing just enough support to gradually increase afternoon
rain and storm chances from 20-40% on Monday to 60-70% on
Wednesday. With the better shear being displaced well to our
north, no severe weather is expected. Rather, the scattered storms
may be capable of some gusty winds, frequent lightning, and heavy
rainfall.

The increased rain and storms chances will limit our afternoon
highs each day to the upper 80s to low 90s. Even so, the slightly
higher dew points will allow heat indices to surge over 100 for
many locations, with highest temps and heat indices west of I-65.
While we do not look to reach Heat Advisory Criteria, it will
remain important to practice proper heat and sun safety before
afternoon storms arrive each day.

&&

.LONG TERM...
(Tuesday night through Saturday)
Issued at 1053 PM CDT Sat Aug 9 2025

The aforementioned upper trough will become less amplified as it
moves toward the Atlantic coast and high pressure will build west
over the Gulf. This will result in slightly higher temperatures as
we head into the weekend and will keep a moist, tropical airmass
in place. Rain chances will be highest on Wednesday as the upper
trough axis swings across the Tennessee Valley and puts us in
close proximity to a sfc front. The warm and humid airmass out
ahead of this will support medium to high (60-70%) rain and
thunderstorm chances. With PWATs near or above 2" we will have to
keep an eye on the risk for localized flooding, especially across
areas that receive heavy rainfall on previous days. Thunderstorm
chances will linger into the weekend, but will decrease each day
lowering to the 30-40% range on Saturday. Inversely, heat indices
will rise to the 100-105 degree range Friday and Saturday at the
beginning of what looks like another period of brutal summer heat.
Stay tuned for updates as we head through the next week.

&&

.AVIATION...
(18Z TAFS)
Issued at 1137 AM CDT Sun Aug 10 2025

VFR conditions will prevail through the remainder of the day and
a majority of the night. Just before 12Z tomorrow a low MVFR
stratus deck will build in from east to west brining both
terminals down to MVFR ceiling likely from 12Z through the
remainder of the TAF period.

&&

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

$$

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