Special Weather Statement, NWS Birmingham, AL

Area Forecast Discussion
National Weather Service Birmingham AL
623 PM CDT Fri Aug 21 2026

...New AVIATION...

.KEY MESSAGES...
Issued at 622 PM CDT FRI AUG 21 2026

- Heat: Minor HeatRisk will continue through the weekend. Heat
  indices are forecast to remain below 105 degrees.

- Thunderstorms: Severe storms are expected through early evening
  across southern Central Alabama, with damaging winds and heavy
  rain remaining the main concerns.

&&

.DISCUSSION...
(This afternoon through Thursday)
Issued at 1251 PM CDT FRI AUG 21 2026

The KBMX radar reveals a few lingering showers from this
morning's convective activity. A quick look at water vapor
imagery reveals an upper trough situated across the Tennessee
Valley and an upper ridge building out to our west. At the
surface, a cold front can be analyzed drifting slowly across the
northern half of the state. This boundary will continue its
southward movement through the day. Meanwhile, a shortwave will
round the base of the trough, triggering another round of
convection, generally to the south of the front. SPC maintains a
Marginal Risk (Level 1 out of 5) for the southern half of the CWA
due to the threat of damaging wind gusts. Forecast soundings once
again suggest ample instability, dry mid-level air, and high
DCAPE which supports the threat of downbursts with today's
storms. Additionally, PWATs nearing 2" (per the 12Z KBMX sounding
and GOES TPW imagery) would lead to heavy rainfall and a
localized flash flooding threat.

Narrowing dew points, condensation pressure deficits falling to 2-
5mb and light winds in the wake of today's convection will help
promote patchy fog development around sunrise Saturday morning.
Fog will be most likely for those that receive rain this
afternoon and evening.

Upper-level ridging will attempt to build in over the weekend.
Increased subsidence and drier air will lower rain chances
through the weekend, though precipitation looks to return early
next week as a series of shortwaves rotates through with the
northwest flow aloft.

High temperatures will continue in the low to mid-90s over the
coming days. Persistent humidity will promote daily heat indices
in the 105-109 degree range today. The Heat Advisory remains in
effect through 02Z Saturday. Drier air arriving this weekend will
help keep heat indices in check, generally in the 95-100 range.

95/Castillo

&&

.AVIATION...
(00Z TAFS)
Issued at 622 PM CDT FRI AUG 21 2026

A batch of rain is currently moving right over EET, between TCL
and BHM. Look for the activity to remain possible through 02Z for
the north. MGM and AUO may see some additional activity after 00Z
through 03Z. MVFR cigs/vis and gusty winds will be likely with
any passing storms. Will continue with PROB30 mentions to account
for this activity. As winds become light overnight, there will be
a low (20-30%) chance for patchy MVFR fog around sunrise. Best
chances will be at terminals that receive rain this afternoon and
evening. Dry conditions are expected through much of the area on
Saturday.

Note: AMD NOT SKED for AUO due to a weather observation outage.

16

&&

.FIRE WEATHER...

Drier air filtering into the area on Saturday will result in a
decrease in relative humidity (35 to 45%) for most locations.
However, wind speeds are expected to remain light, which should
negate any significant fire weather concerns during this period.
Moisture gradually begins to return early next week.

&&

.PRELIMINARY POINT TEMPS/POPS...
Gadsden     70  94  70  92 /  10   0  10  10
Anniston    70  92  69  91 /  10   0  10  10
Birmingham  72  93  72  92 /  10   0  10  10
Tuscaloosa  73  98  73  96 /  10   0  10  10
Calera      72  94  72  93 /  20   0  10  10
Auburn      72  91  72  90 /  40   0   0   0
Montgomery  73  96  73  96 /  30   0   0   0
Troy        72  95  71  95 /  40  10   0   0

&&

.BMX WATCHES/WARNINGS/ADVISORIES...
Heat Advisory until 9 PM CDT this evening for the following
counties: Autauga-Barbour-Bibb-Bullock-Chilton-Dallas-Elmore-
Fayette-Greene-Hale-Jefferson-Lamar-Lowndes-Macon-Marengo-Marion-
Montgomery-Perry-Pickens-Pike-Russell-Shelby-St. Clair-Sumter-
Tuscaloosa-Walker.

&&

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

Special Weather Statement
National Weather Service Birmingham AL
710 PM CDT Fri Aug 21 2026

ALZ023-034-220045-
Bibb AL-Tuscaloosa AL-
710 PM CDT Fri Aug 21 2026

...A STRONG THUNDERSTORM WILL IMPACT SOUTHEASTERN TUSCALOOSA AND
NORTHEASTERN BIBB COUNTIES THROUGH 745 PM CDT...

At 710 PM CDT, Doppler radar was tracking a strong thunderstorm near
West Blocton, or 13 miles north of Centreville, moving southeast at
20 mph.

HAZARD...Wind gusts up to 50 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
Centreville, Lake View, Vance, Woodstock, West Blocton, Mercedes Benz
Of Alabama, North Bibb, Green Pond, Caffee Junction, Hebron, Marvel,
and Cedar Cove.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3317 8733 3330 8715 3319 8703 3317 8703
      3317 8700 3313 8697 3310 8697 3310 8695
      3309 8695 3298 8714
TIME...MOT...LOC 0010Z 315DEG 18KT 3315 8716

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH

32/JDavis

Special Weather Statement
National Weather Service Birmingham AL
735 PM CDT Fri Aug 21 2026

ALZ027-028-036-220100-
Clay AL-Talladega AL-Coosa AL-
735 PM CDT Fri Aug 21 2026

...A STRONG THUNDERSTORM WILL IMPACT SOUTH CENTRAL TALLADEGA...
NORTHEASTERN COOSA AND SOUTHWESTERN CLAY COUNTIES THROUGH 800 PM
CDT...

At 735 PM CDT, Doppler radar was tracking a strong thunderstorm near
Parkdale, or 8 miles north of Goodwater, moving southeast at 25 mph.

HAZARD...Wind gusts up to 50 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
Sylacauga, Goodwater, Parkdale, Cleveland Crossroads, Overbrook,
Hollins, Roselle, and Millerville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3310 8592 3311 8597 3309 8598 3309 8601
      3302 8601 3312 8625 3329 8615 3320 8585
TIME...MOT...LOC 0035Z 295DEG 21KT 3318 8610

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH

32/JDavis

Special Weather Statement
National Weather Service Birmingham AL
741 PM CDT Fri Aug 21 2026

ALZ028-029-220115-
Clay AL-Randolph AL-
741 PM CDT Fri Aug 21 2026

...A STRONG THUNDERSTORM WILL IMPACT SOUTHWESTERN RANDOLPH AND
SOUTHEASTERN CLAY COUNTIES THROUGH 815 PM CDT...

At 741 PM CDT, Doppler radar was tracking a strong thunderstorm near
Lineville, moving south at 10 mph.

HAZARD...Wind gusts up to 50 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
Lineville, Ashland, Lake Wedowee, Wadley, Malone, Cragford, R.L.
Harris Dam, Motley, and Mellow Valley.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3310 8587 3330 8588 3333 8563 3311 8554
TIME...MOT...LOC 0041Z 338DEG 11KT 3324 8571

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH

32/JDavis

Special Weather Statement
National Weather Service Birmingham AL
748 PM CDT Fri Aug 21 2026

ALZ034-035-220130-
Chilton AL-Bibb AL-
748 PM CDT Fri Aug 21 2026

...A STRONG THUNDERSTORM WILL IMPACT NORTHWESTERN CHILTON AND
SOUTHEASTERN BIBB COUNTIES THROUGH 830 PM CDT...

At 748 PM CDT, Doppler radar was tracking a strong thunderstorm near
Ashby, or 9 miles southwest of Montevallo, moving southeast at 20
mph.

HAZARD...Wind gusts up to 50 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
Jemison, Thorsby, Maplesville, Lawley, Ashby, Chilton County Motor
Sports Park, Brierfield Ironworks Park, Randolph, Trio, and Six Mile.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3314 8700 3311 8697 3310 8697 3310 8695
      3308 8695 3308 8693 3306 8693 3306 8690
      3305 8690 3305 8689 3292 8673 3278 8687
      3298 8712
TIME...MOT...LOC 0048Z 313DEG 18KT 3301 8697

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH

32/JDavis

Special Weather Statement
National Weather Service Birmingham AL
810 PM CDT Fri Aug 21 2026

ALZ037-220145-
Tallapoosa AL-
810 PM CDT Fri Aug 21 2026

...A STRONG THUNDERSTORM WILL IMPACT NORTHWESTERN TALLAPOOSA COUNTY
THROUGH 845 PM CDT...

At 810 PM CDT, Doppler radar was tracking a strong thunderstorm over
Jacksons' Gap, or near Alexander City, moving southeast at 15 mph.

HAZARD...Wind gusts up to 50 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
Alexander City, Dadeville, Jacksons' Gap, Northern Lake Martin,
Eastern Lake Martin, and Eagle Creek.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3289 8594 3300 8582 3290 8569 3279 8580
TIME...MOT...LOC 0110Z 311DEG 14KT 3292 8583

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH

32/JDavis

Special Weather Statement
National Weather Service Birmingham AL
821 PM CDT Fri Aug 21 2026

ALZ039-220145-
Marengo AL-
821 PM CDT Fri Aug 21 2026

...A STRONG THUNDERSTORM WILL IMPACT SOUTHWESTERN MARENGO COUNTY
THROUGH 845 PM CDT...

At 821 PM CDT, Doppler radar was tracking a strong thunderstorm over
Sweet Water, or 14 miles northwest of Thomasville, moving southeast
at 35 mph.

HAZARD...Wind gusts up to 40 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
Sweet Water, Wayne, Surginer, Miller, Shawnee, Dixons Mill, Clayhill,
and Nicholsville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3210 8800 3220 8782 3200 8763 3200 8767
      3199 8767 3199 8793
TIME...MOT...LOC 0121Z 326DEG 29KT 3210 8787

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH

32/JDavis