257
FXUS64 KBMX 211053
AFDBMX

Area Forecast Discussion
National Weather Service Birmingham AL
553 AM CDT Thu Aug 21 2025

...New AVIATION...

.SHORT TERM...
(Today through Friday)
Issued at 218 AM CDT THU AUG 21 2025

We will remain in a moist and unstable mid-summer weather regime
in the short term. Latest short term computer model guidance
suggests the best chances of afternoon/evening storms the next
couple days will generally be south of I-59. Temperatures also
forecast to remain near seasonal normals.

/61/

&&

.LONG TERM...
(Friday night through next Wednesday)
Issued at 218 AM CDT THU AUG 21 2025

More diurnal convection is forecast over the weekend, especially
as you go more south and east in the CWA. The story of the long
term remains the increasing likelihood of a honest to goodness
cold frontal passage in the Sunday night to Monday time frame.
This front should at the very least bring a noticeable decrease in
humidity levels to central Alabama. The long range models do show
a second cold front coming into the picture the middle of next
week. Now there is some disagreement on how far south that second
front is able to get -- the operational GFS pushes it all the way
through, while the ECMWF stalls it juuuuuuust to our north at
first, before finally going through late next week. Those details
will need to be worked out.

/61/

&&

.AVIATION...
(12Z TAFS)
Issued at 545 AM CDT THU AUG 21 2025

GOES Nighttime Microphysics satellite imagery reveals a low level
stratus deck spreading across the region. This will bring MVFR/IFR
ceilings to all sites over the next couple of hours. Opted to
handle this with a short-lived TEMPO group. Another round of
convection is likely this afternoon with activity gradually
diminishing this evening. Low level stratus likely redevelops
Friday morning leading to MVFR/IFR ceilings.

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

95/Castillo

&&

.FIRE WEATHER...
North winds are expected to continue into the weekend, with
speeds generally remaining between 5-10 MPH. Scattered rain
chances will also remain in the forecast, as a weak cold front
pushes closer to the region. By the start of next week, a stronger
cold front will push through the region, allowing for MinRH
values to drop into the low-40% range. However, no fire weather
concerns are expected at this time.

&&

.PRELIMINARY POINT TEMPS/POPS...
Gadsden     90  70  89  69 /  30  20  50  20
Anniston    89  71  88  70 /  40  30  60  30
Birmingham  90  72  89  71 /  40  20  50  20
Tuscaloosa  91  72  91  72 /  40  20  40  20
Calera      89  72  88  71 /  50  20  50  30
Auburn      89  72  85  71 /  40  40  80  40
Montgomery  93  73  89  72 /  50  30  70  30
Troy        91  72  88  71 /  50  30  70  40

&&

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

$$

SHORT TERM...02
LONG TERM....02
AVIATION...95/Castillo