266
FXUS64 KHUN 051939
AFDHUN

Area Forecast Discussion
National Weather Service Huntsville AL
139 PM CST Thu Nov 5 2026

...New SHORT TERM, LONG TERM...

.KEY MESSAGES...
Updated at 139 PM CST Thu Nov 5 2026

 - Low temperatures will fall between freezing and the middle 30s
   Sunday morning, with higher confidence Sunday night into
   Monday.

 - Patchy frost is possible if winds can decouple Sunday and
   Monday mornings, but confidence is low.

&&

.NEAR TERM...
(Rest of Today and Tonight)
Issued at 139 PM CST Thu Nov 5 2026

Temperatures have climbed into the lower 70s at 2 PM. This is
likely very near the high for the day (though it could climb
another degree or two before sunset).

Clear skies and light winds are expected tonight. With some drier
air advected into the area already, lows will drop into the 40 to
45 degree range in NW AL and southern middle Tennessee. Further
east with more cloud cover expected to redevelop tonight, lows
will likely only drop into the 43 to 49 degree range.

&&

.SHORT TERM...
(Friday through Sunday)
Issued at 139 PM CST Thu Nov 5 2026

A re-enforcing upper level longwave trough axis will continue to
develop and push east into Friday over the central Great Lakes
region towards the Ohio Valley. Guidance focuses the deeper
moisture and better forcing near the stronger upper low over the
Great Lakes region on Friday. The weaker upper low really falls
apart. This allows for a dry forecast further south, as the base
of the longwave trough axis pushes east into the Tennessee Valley
region. Some increasing cloud cover is expected during the day on
Friday into the afternoon hours. This cloud cover and a much
cooler start to the day should limit daytime highs north of the
Tennessee River mainly. Highs there despite morning sunshine will
likely only climb into the mid to upper 60s.

Even cooler conditions are expected to push SSE into the area
behind the frontal boundary Friday night into Saturday.
Temperatures should drop into the mid to upper 30s in most areas
in southern middle Tennessee into NW Alabama. With winds staying
higher between 5 and 10 mph near and just ahead of the front,
frost doesn`t look likely despite the cold temperatures.

With stronger cold air advection occurring behind the front on
Saturday (despite abundant sunshine), high temperatures should
only top out in the upper 50s to lower 60s. This may even be a tad
optimistic for highs. Wouldn`t be surprised if we end only
climbing a few degrees lower.

Saturday night may see our first light freeze and frost
development with lows dropping into the 30 to 26 degree range in
many areas. Likely will see some frost as well, especially in
valley locations (but possibly more widespread if winds are just a
few mph lower than currently expected).

By Sunday, another upper low moves east into Texas. Zonal flow
aloft will likely bring some more moist and warmer air into the
region east of that feature into the area. Despite abundant
sunshine, highs will still be hard pressed to reach the 60 to 65
mark.

&&

.LONG TERM...
(Sunday night through Thursday)
Issued at 1247 PM CST Thu Nov 5 2026

As the upper low begins to move northeast with time early next
week, as more pronounced warming trend is expected with amplifying
southwesterly flow developing east of the upper low. This should
push highs back into the 65 to 70 degree range in most locations
and bring just a bit more low level moisture into the area. Lows
still look to remain in the mid 30s to lower 40s though.

&&

.AVIATION...
(12Z TAFS)
Issued at 537 AM CST Thu Nov 5 2026

Widespread LIFR conditions have taken over the area with periods
of VLIFR conditions as visibilities drop to 1/4 to 3/4 miles due
to dense fog. A TEMPO group for LIFR conditions continues through
13Z before conditions begin to improve to MVFR and VFR. If fog
holds on longer than anticipated, amendments may be needed to
extend the LIFR group into the later morning hours.

&&

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

$$

NEAR TERM...12
SHORT TERM....KTW
LONG TERM....KTW
AVIATION...HC