797
FXUS64 KBMX 231110
AFDBMX

Area Forecast Discussion
National Weather Service Birmingham AL
610 AM CDT Sat Aug 23 2025

...New AVIATION...

.SHORT TERM...
(Today through Sunday)
Issued at 1208 AM CDT SAT AUG 23 2025

A weak upper level trough is present over GA and the southern
Appalachians today. This will support higher than typical diurnal
shower and thunderstorm activity mainly to our east initially.
However, as the trough continues to slide southeastward, we`ll see a
east to west moving frontal boundary move into eastern portions of
the area. This will lead to a stronger focus for afternoon
thunderstorms generally east of I-65 by the mid to late afternoon
hours.

The main trough axis shifts to our east by Sunday, leading to slight
subsidence. This subsidence will be somewhat overcome by the
approaching frontal boundary to our north, leading to low to
medium rain chances (30-40%).

25/Owen

&&

.LONG TERM...
(Sunday night through next Friday)
Issued at 1208 AM CDT SAT AUG 23 2025

A cold front is expected to push from north to south through Central
AL on Monday. Guidance continues to show this as a mostly dry
frontal passage with little to no upper level support reaching our
area. This front is expected to push all the way down to the Coast
by early Tuesday morning with fairly substantial cold air advection
for late August. Lows on Tuesday morning are expected to be in the
low to mid 60s across much of the area with highs in the low to mid
80s. A few locations across the north may struggle to get out of the
upper 70s on Tuesday.

With the front remaining to our south, very little moisture return
is expected before another frontal passage on Wednesday. This one
has a bit more upper level support as a shortwave dips through the
Ohio Valley and into the Central Appalachians  early Wednesday. Some
guidance tries to produce some rain ahead of the next front, but
this seems to dry out fairly quickly due to the dry air near the
surface.

Overall, with the 2 frontal passages early next week, expect below-
average temperatures to persist through much of the remainder of the
week. The next meaningful rain chances return towards the end of the
week as the high pressure shifts eastward allowing for very modest
moisture return with easterly flow.

25/Owen

&&

.AVIATION...
(12Z TAFS)
Issued at 610 AM CDT SAT AUG 23 2025

Some low clouds and patchy fog have moved into the area from the
east. After the clouds lift/burn off, scattered to broken cumulus
will develop giving way to scattered showers and storms after 18z.
Activity will likely continue in the east through 1 to 3z. More
low clouds and fog develop after 6z with LIFR across much of the
area by 8 to 9z.

NOTE: AMD NOT SKED has been added at TCL until further notice due
to comms issues.

16

&&

.FIRE WEATHER...

Increased rain chances continue Saturday, mainly east of I-65.
MinRHs will remain above 50% through Sunday before a cold front
pushes through the area on Monday. Drier air is expected behind the
front on Monday with Min RHs dropping to the low 30% range through
early next week. Winds should remain below any critical values.

&&

.PRELIMINARY POINT TEMPS/POPS...
Gadsden     86  69  87  63 /  60  30  30   0
Anniston    85  69  86  64 /  60  20  40   0
Birmingham  87  70  87  66 /  40  20  30   0
Tuscaloosa  91  71  91  67 /  20  10  20   0
Calera      88  70  88  67 /  40  10  30   0
Auburn      83  70  85  68 /  60  20  40   0
Montgomery  88  71  89  69 /  40  10  30   0
Troy        86  69  87  68 /  50  20  30   0

&&

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

$$

SHORT TERM...25/Owen
LONG TERM....25/Owen
AVIATION...16