089
FXUS64 KBMX 162319
AFDBMX

Area Forecast Discussion
National Weather Service Birmingham AL
519 PM CST Tue Dec 16 2025

...New AVIATION...

.KEY MESSAGES...
Updated at 517 PM CST TUE DEC 16 2025

 - Dry weather will continue through Wednesday with gradually
   moderating temperatures.

 - Widespread showers with at least isolated thunderstorms
   expected Thursday.

&&

.DISCUSSION...
(This afternoon through next Sunday)
Issued at 1136 AM CST TUE DEC 16 2025

Water vapor imagery this morning reveals a trough pushing off the
east coast as a ridge shifts east over the Southern Plains. At the
surface, high pressure remains in place over the southeast. This
will allow for a slight warming trend to kick in over the coming
days with high temps rebounding back into the 50s/60s today and
tomorrow. Clear skies tonight will make for another chilly night
with temps falling into the low to mid 30s. There is a low chance
for some patchy fog across our southern counties. Confidence isn`t
high enough at this time to include in the forecast at this time.
However, if fog does develop, it will likely be freezing fog.
Something to monitor.

The ridging over the Southern Plains quickly nudges east as a
shortwave approaches from the west. There will be enough moisture
around to warrant a low (~20%) chance of showers across our
northwestern counties. Rain chances ramp up on Thursday as a couple
of troughs near the region. The first looks to slide across the
Northern Plains with another ejects across the Gulf from the
TX/MX border. Meanwhile, an associated cold front will head our
way, eventually moving through Central Alabama Thursday night into
Friday morning. Plentiful moisture will be in place ahead of this
system, allowing for medium to high (50-90%) rain chances
Thursday through early Friday morning. The majority of this
activity will be showers. However, there is a slight chance for a
few isolated thunderstorms. Latest guidance suggest we will have
sufficient wind shear (~40 knots) but will be lacking
instability.

Rain chances quickly come to an end Friday morning as much drier air
filters in behind our next cold front. After a brief cool down on
Friday, we resume our warming trend over the weekend with temps
nearing the 70s across our southern counties. Low (20-30%) rain
chances return Sunday/Monday as another cold front is sent south
from a trough rotating through the Great Lakes region.

95/Castillo

&&

.AVIATION...
(00Z TAFS)
Issued at 517 PM CST TUE DEC 16 2025

VFR conditions and light winds will continue for much of this TAF
cycle. Continued with the mention of MVFR cigs/vis Wednesday
morning at AUO/MGM with the added moisture in place. Improvement
by 15z, with light southerly winds continuing.

16

&&

.FIRE WEATHER...

Rain-free conditions will continue through Wednesday with 20 foot
winds light and variable. Surface winds will be from the south at
5-10 mph. Relative humidity values will drop into the 25-30% range
across our eastern areas this afternoon. Outside of Thursday when
min RHs will be over 75%, min RHs will hover in the 40-60% range
for the remainder of the week. A good chance for wetting rain is
forecast on Thursday with slight chances for thunderstorms as
well.

&&

.PRELIMINARY POINT TEMPS/POPS...
Gadsden     28  57  38  61 /   0  10  20  90
Anniston    32  60  42  63 /   0   0  20  90
Birmingham  35  59  44  61 /   0  10  30  90
Tuscaloosa  34  60  45  63 /   0  10  30  90
Calera      33  62  43  63 /   0  10  30  90
Auburn      35  60  46  61 /   0   0  20  80
Montgomery  33  62  47  63 /   0   0  20  80
Troy        33  62  47  64 /   0   0  20  80

&&

.BMX WATCHES/WARNINGS/ADVISORIES...
None.
&&

$$

DISCUSSION...95/Castillo
AVIATION...16