269
FXUS64 KHUN 091642
AFDHUN

Area Forecast Discussion
National Weather Service Huntsville AL
1042 AM CST Tue Dec 9 2025

...New NEAR TERM, SHORT TERM...

.KEY MESSAGES...
Updated at 1030 AM CST Tue Dec 9 2025

 - No significant impactful weather expected during the period,
   but confidence is increasing in the potential of cold
   conditions early next week (~25% probabilities for low temps in
   the teens Monday morning).

&&

.NEAR TERM...
(Rest of Today and Tonight)
Issued at 1030 AM CST Tue Dec 9 2025

Cool, dry conditions are expected today and tonight as an
elongated area of high pressure extending from the Gulf Coast
region into the NE Coast will hold sway over the region. A
shallow, low cloud deck that was present across NW portions of AL
this morning has gradually eroded with the onset of mixing this
morning. However, high ice-crystal clouds are crossing the area
today, and looking at their degree of opacity in satellite imagery
could have a small cooling impact on high temps. Those are
expected to reach into the upper 40s to around 50 this afternoon.
Light, patchy fog is expected in some locations tonight, probably
of the typical shallow/ground fog variety, as temperatures fall
into the low/mid 30s overnight.

&&

.SHORT TERM...
(Wednesday through Friday)
Issued at 1030 AM CST Tue Dec 9 2025

The broad sfc ridge will retreat gradually to the east/south into
offshore territory as a longwave trough is carved into the East
CONUS on Wednesday. Ahead of the trough and a developing sfc
front, warm air advection amidst SW flow ahead of the front will
propel temperatures into the 50s on Wednesday. Winds may be a bit
gusty (~15-20 mph) at times on Wednesday, but far short of any
necessary Advisory. The greater combination of dynamic lifting
and sufficient moisture will reside in the OH Valley and areas
farther to the NE with this system, thus a dry frontal progression
is expected across our area. Winds will shift from the NW
Wednesday evening with cold air advection allowing temperatures to
fall as low as the mid/upper 20s on Thursday morning. Temperatures
are expected to be a little colder again on Thursday, in the
post-cold frontal air mass, however, are expected to reach the
mid/upr 40s for most locations. The main caveat for Thursday will
be the cloud cover. The majority of ensembles indicate a low cloud
deck associated with the cold air mass should largely be to our
north, however, there is some disagreement among members, with
some indicating a low cloud presence over part of the area
(greater probabilities over northern locations).

&&

.LONG TERM...
(Thursday night through Monday)
Issued at 1025 PM CST Mon Dec 8 2025

Slightly cooler than seasonal temperatures are forecast Thursday
night, with lows falling into the low/mid 30s. Closer to normal
readings will return on Friday with highs into the mid/upper 50s
under partly sunny skies. With cloud cover on the increase, lows
Fri night should range in the 30s.

Yet another storm system moving in from the WNW will bring lower
end chances of showers across mainly the western areas Saturday
afternoon. Rain chances should spread eastward across the Valley
Saturday night, then end from west to east over our eastern areas
Sunday morning. This system will bring colder air from up north to
across the eastern CONUS early next week. Lows Sat night should
cool from the upper 20s our Tennessee counties to mid 30s south of
the Tennessee River. A chilly airmass will be more noticed
Sunday, with highs only in the upper 30s north to mid 40s south.
The start of the next work week, Monday will be on the cold side,
with highs during the day into the mid/upper 40s.

&&

.AVIATION...
(12Z TAFS)
Issued at 543 AM CST Tue Dec 9 2025

Although the stratus layer has gradually eroded from NE-to-SW
since issuance of the previous aviation forecast, MVFR cigs will
persist thru 15Z at MSL, with VFR conds at HSV. Beyond 15Z, sct-
bkn mid and high-lvl clouds will spread across the region in WNW
flow aloft, as sfc winds assume a SSW component and increase to
5-10 kts. Clouds layers aloft will continue to increase in both
coverage and density this evening, and LLWS has been introduced
beyond 4Z as models suggest that a WSW low-level jet will increase
into the 45-55 knot range during this timeframe.

&&

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

$$

NEAR TERM...KDW
SHORT TERM....KDW
LONG TERM....RSB
AVIATION...70