690
FXUS64 KHUN 272305
AFDHUN

Area Forecast Discussion
National Weather Service Huntsville AL
605 PM CDT Thu Aug 27 2026

...New AVIATION, CLIMATE...

.KEY MESSAGES...
Updated at 917 AM CDT Thu Aug 27 2026

 - Low chances for showers and thunderstorms will be forecast in
   portions of far NE AL and far NW AL this afternoon into the
   late evening; no impacts anticipated.

 - Dangerous heat will return late this weekend into early next
   week with heat indices approaching or exceeding 100 degrees.

&&

.NEAR TERM...
(Tonight)
Issued at 336 PM CDT Thu Aug 27 2026

Pop up showers and thunderstorms have developed just to our east
and appear to be clustered along a remnant boundary. With this
boundary being to our SE, it is likely most of the afternoon
showers and thunderstorms will remain just outside out CWA. Thus,
only low rain chances remain in NE AL through the remainder of the
day. Any showers/storms that de develop will remain sub severe
and dissipate with sunset.

Overnight, light winds and low dew point depressions will create a
favorable environment for fog formation. Several models show lower
visibilities after 06Z. With a decent chance for at least
localized areas of dense fog, please use caution will traveling
early tomorrow morning.

&&

.SHORT TERM...
(Friday through Sunday)
Issued at 917 AM CDT Thu Aug 27 2026

Through the short term forecast, troughing in the eastern CONUS
will finally begin to dampen and shift off towards the Atlantic.
In its place, ridging and surface high pressure will build leading
to lower rain chances and hotter temps. Highs look to warm back
to the mid 90s by Sunday with rain chances remaining below 20%.
Post frontal lower dew points will remain through the short term
forecast however, mitigating our overall heat concerns. Dew points
look to drop to the 60s on Friday and hover between the high 60s
to low 70s through the weekend. This will largely keep heat
indices below 100 through Sunday. As such, while warm, the weekend
should be rather pleasant for late August. With additional heat
and moisture retuning in the new work week, make sure to enjoy the
nice conditions.

&&

.LONG TERM...
(Saturday night through Wednesday)
Issued at 1048 PM CDT Wed Aug 26 2026

The long term forecast will be largely dominated by a strong upper
ridge that will bring a relatively dry but hot airmass to the area.
Highs on Sunday will climb to the low 90s while large scale
subsidence and afternoon mixing help keep heat indices near or below
the 100 degree mark. As the upper ridge builds in and becomes better
amplified next week, H85 temps will climb to the 20-25C range,
translating to sfc temps in the mid to upper 90s. The good news that
may suppress a larger heat wave threat will be that the dewpoint
temps are slightly lower than what we have seen in recent events.
Even still, afternoon heat indices will rise to the 100-107 degree
range next week and any trends that favor a slightly more moist
environment would work to increase the risk for dangerous heat.
Summer is not over yet, so remember to practice and plan for
dangerous temps and very hot outdoor working conditions. The limited
moisture and lack of more synoptic support for thunderstorms will
keep PoPs capped below 20% through the long term period.

&&

.AVIATION...
(00Z TAFS)
Issued at 605 PM CDT Thu Aug 27 2026

VFR conditions are forecast to prevail through much of the TAF
period aside from a low to medium chance for patchy dense fog
early tomorrow morning. Have included lower vsbys at HSV to cover
this risk but further adjustments may be needed by the 06z TAFs.

&&

.CLIMATE...
Issued at 323 AM CDT Thu Aug 27 2026

Moderate Risk for Much Above Normal Temperatures:

The Climate Prediction Center has included the entire Tennessee
Valley in a Moderate Risk for Much Above Normal Temperatures for
September 4th through 6th. Therefore, there is a 40-60% chance
for temperatures above 95 degrees F and heat index values
exceeding 105 degrees F during this period

More information on the CPC U.S. Hazards Outlook can be found at:
https://www.cpc.ncep.noaa.gov/products/predictions/threats/threats.php

&&

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

$$

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