Alert archive / Alabama / Severe Thunderstorm Warnings in 2026

Severe Thunderstorm Warning 151, NWS Birmingham, AL

August 18, 2026Hale County, Marengo County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Aug 18, 2026, 7:46 PM CDT for Hale County, Marengo County, Alabama. It was in force for 44 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Aug 18, 2026, 7:46 PM CDT (00:46 UTC)
Expired: Aug 18, 2026, 8:30 PM CDT
In force: 44 min
Issued by: NWS Birmingham, AL
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Hale County, AL, Marengo County, AL

The radar

The Birmingham radar (KBMX), 120 km from the middle of the area, began a volume at 00:50 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

Time	Report	Where	Remark
Aug 18, 7:49 PM CDT	TSTM WND DMG	Old Spring Hill, AL	Trees down in Old Spring Hill on CR 1, CR 35, and CR 54.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched one storm report to this severe thunderstorm warning; the first came 3 minutes after it went out.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Birmingham, AL (KBMX), launched 00:00Z, 0.8 hours before the alert went out and 120 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 1923 J/kg
Mixed-layer CIN: -5 J/kg
Mixed-layer LCL: 1583 m above ground
0-6 km bulk shear: 14 kt
0-1 km storm-relative helicity: -7 m²/s²
0-3 km storm-relative helicity: 68 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

136 
WUUS54 KBMX 190046
SVRBMX
ALC065-091-190130-
/O.NEW.KBMX.SV.W.0151.260819T0046Z-260819T0130Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Birmingham AL
746 PM CDT Tue Aug 18 2026

The National Weather Service in Birmingham has issued a

* Severe Thunderstorm Warning for...
  Northeastern Marengo County in southwestern Alabama...
  Southwestern Hale County in west central Alabama...

* Until 830 PM CDT.

* At 746 PM CDT, a severe thunderstorm was located over Demopolis,
  moving east at 15 mph.

  HAZARD...60 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees.

* Locations impacted include...
  Demopolis, Uniontown, Faunsdale, Dayton, Arcola, Old Spring Hill,
  Gallion, Laneville, and Demopolis Lock And Dam.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3252 8790 3252 8784 3254 8785 3255 8783
      3254 8782 3252 8782 3254 8780 3256 8780
      3256 8779 3257 8779 3255 8752 3229 8752
      3240 8793
TIME...MOT...LOC 0046Z 280DEG 15KT 3248 8783 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

25/Owen

1 follow-up statement

682 
WWUS54 KBMX 190119
SVSBMX

Severe Weather Statement
National Weather Service Birmingham AL
819 PM CDT Tue Aug 18 2026

ALC065-190129-
/O.CAN.KBMX.SV.W.0151.000000T0000Z-260819T0130Z/
Hale AL-
819 PM CDT Tue Aug 18 2026

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN HALE COUNTY IS
CANCELLED...

The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

&&

LAT...LON 3248 8769 3248 8752 3229 8752 3236 8775
TIME...MOT...LOC 0119Z 280DEG 15KT 3246 8767 

$$

ALC091-190130-
/O.CON.KBMX.SV.W.0151.000000T0000Z-260819T0130Z/
Marengo AL-
819 PM CDT Tue Aug 18 2026

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 830 PM CDT
FOR NORTHEASTERN MARENGO COUNTY...

At 819 PM CDT, a severe thunderstorm was located near Faunsdale, or 9
miles west of Uniontown, moving east at 15 mph.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

Locations impacted include...
Uniontown, Faunsdale, and Dayton.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3248 8769 3248 8752 3229 8752 3236 8775
TIME...MOT...LOC 0119Z 280DEG 15KT 3246 8767 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

44

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Birmingham, AL wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 18, 6:21 PM CDT, 1 hour 25 minutes earlier. Its key messages:

Issued at 620 PM CDT TUE AUG 18 2026
Heat: Major HeatRisk is expected to persist through the middle of the workweek. Heat indices are forecast between 103 to 109 degrees. A Heat Advisory is now in effect for portions of central Alabama through Wednesday.
Thunderstorms: Isolated afternoon thunderstorms will remain in the forecast through Thursday, especially south of I-20. More organized rain chances will increase closer to the weekend, as a series of disturbances moves through the region.

Area forecast discussion, Aug 18, 6:21 PM CDT, 1 hour 25 minutes before

Area Forecast Discussion
National Weather Service Birmingham AL
621 PM CDT Tue Aug 18 2026

...New AVIATION...

.KEY MESSAGES...
Issued at 620 PM CDT TUE AUG 18 2026

- Heat: Major HeatRisk is expected to persist through the middle
  of the workweek.  Heat indices are forecast between 103 to 109
  degrees. A Heat Advisory is now in effect for portions of
  central Alabama through Wednesday.

- Thunderstorms: Isolated afternoon thunderstorms will remain in
  the forecast through Thursday, especially south of I-20. More
  organized rain chances will increase closer to the weekend, as a
  series of disturbances moves through the region.

&&

.DISCUSSION...
(This afternoon through Monday)
Issued at 202 PM CDT TUE AUG 18 2026

The upper-level ridge currently dominating the forecast will
shift westward over the coming days, allowing a deep trough over
the Midwest to influence the region. While temperatures will see
a slight downward trend, Heat Advisory criteria are expected to
persist in parts of the area through Wednesday before conditions
ease by Friday into the weekend. As the Midwestern trough
deepens, weak shortwaves will track across the region.

Organized rain is anticipated Friday through the weekend, though
confidence regarding coverage and rainfall totals remains low.
The deepening trough will facilitate the arrival of drier air,
driving peak heat index values below advisory thresholds through
the weekend. We increased rain chances above consensus for
tonight and Wednesday, accounting for model performance
limitations. High temperatures are anticipated to remain in the
low to mid-90s into early next week.

16

&&

.AVIATION...
(00Z TAFS)
Issued at 620 PM CDT TUE AUG 18 2026

Thunderstorms will remain in the forecast through 19/02z, with
TCL, EET, and MGM maintaining TEMPO groups through then. Once
thunderstorm activity diminishes, there is high confidence in VFR
conditions for the remainder of the TAF period.

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

/44/

&&

.FIRE WEATHER...

MinRH values will generally range between 35 and 45% the next few
days, before slowly climbing into the weekend ahead of increasing
rain chances. Winds will remain light the next few days, before
increasing into the weekend as well. Fire weather concerns are
currently low, but they will start to increase by Monday no
meaningful rainfall occurs with this weekend's system.

&&

.PRELIMINARY POINT TEMPS/POPS...
Gadsden     69  96  72  97 /   0  10   0  10
Anniston    70  93  71  95 /  10  10   0  10
Birmingham  73  95  74  95 /  10  10   0  10
Tuscaloosa  74  99  75  99 /  20  10   0  20
Calera      73  95  73  96 /  20  10   0  20
Auburn      74  92  73  94 /  10  10   0  20
Montgomery  74  97  74  98 /  40  10  10  20
Troy        73  95  73  97 /  40  20   0  30

&&

.BMX WATCHES/WARNINGS/ADVISORIES...
Heat Advisory until 9 PM CDT Wednesday for the following
counties: Autauga-Bibb-Chilton-Coosa-Dallas-Elmore-Fayette-
Greene-Hale-Jefferson-Lamar-Lowndes-Marengo-Marion-Montgomery-
Perry-Pickens-Shelby-Sumter-Tuscaloosa-Walker.

Heat Advisory until 9 PM CDT this evening for the following
counties: Barbour-Bullock-Lee-Macon-Pike-Russell.

&&

DISCUSSION...16
AVIATION.../44/

In the hours before

Special weather statement, Aug 18, 7:10 PM CDT, 36 minutes before

Special Weather Statement
National Weather Service Birmingham AL
710 PM CDT Tue Aug 18 2026

ALZ031-032-190045-
Greene AL-Hale AL-
710 PM CDT Tue Aug 18 2026

...A STRONG THUNDERSTORM WILL IMPACT CENTRAL GREENE AND SOUTHWESTERN
HALE COUNTIES THROUGH 745 PM CDT...

At 710 PM CDT, Doppler radar was tracking a strong thunderstorm over
Allison, or near Eutaw, moving southeast at 25 mph.

HAZARD...Wind gusts up to 40 mph and pea size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor hail damage to vegetation is
         possible.

Locations impacted include...
Eutaw, Forkland, Akron, Boligee, Allison, Walden Quarters, Duffys
Bend, Sawyerville, Thornhill, Arcola, Wedgeworth, Evansville, Selden
Lock And Dam, Eutaw Municipal Airport, Clinton, Five Points
Intersection, I 20 Rest Area Near Eutaw, and Birdine.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3278 8811 3277 8808 3279 8806 3281 8807
      3280 8811 3294 8804 3284 8759 3252 8778
      3260 8789 3260 8790 3261 8786 3259 8786
      3261 8784 3262 8786 3263 8792 3262 8795
      3270 8805 3271 8809 3272 8808 3275 8811
TIME...MOT...LOC 0010Z 296DEG 22KT 3281 8799

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH

25/Owen

Local storm report, Aug 18, 7:25 PM CDT, 21 minutes before

Preliminary Local Storm Report
National Weather Service Birmingham AL
725 PM CDT Tue Aug 18 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0710 PM     Tstm Wnd Dmg     2 SE Lilita             32.46N 88.11W
08/18/2026                   Sumter             AL   911 Call Center

            Tree down on U.S. Highway 80 near Coatopa.

&&

Local storm report, Aug 18, 7:31 PM CDT, 15 minutes before

Preliminary Local Storm Report
National Weather Service Birmingham AL
731 PM CDT Tue Aug 18 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0635 PM     Tstm Wnd Dmg     Panola                  32.95N 88.27W
08/18/2026                   Sumter             AL   Fire Dept/Rescue

            Several trees down blocking roadways near
            Panola.

&&

Grantham

Local storm report, Aug 18, 7:32 PM CDT, 14 minutes before

Preliminary Local Storm Report
National Weather Service Birmingham AL
732 PM CDT Tue Aug 18 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0647 PM     Tstm Wnd Dmg     Cuba                    32.44N 88.37W
08/18/2026                   Sumter             AL   Fire Dept/Rescue

            Several trees down blocking roadways near
            Cuba.

&&

Grantham

Special weather statement, Aug 18, 7:38 PM CDT, 8 minutes before

Special Weather Statement
National Weather Service Birmingham AL
738 PM CDT Tue Aug 18 2026

ALZ030>032-039-190115-
Greene AL-Hale AL-Sumter AL-Marengo AL-
738 PM CDT Tue Aug 18 2026

...A STRONG THUNDERSTORM WILL IMPACT NORTH CENTRAL MARENGO...
SOUTHEASTERN GREENE...SOUTHWESTERN HALE AND SOUTHEASTERN SUMTER
COUNTIES THROUGH 815 PM CDT...

At 738 PM CDT, Doppler radar was tracking a strong thunderstorm near
Demopolis, moving east at 15 mph.

HAZARD...Wind gusts up to 50 mph and half inch hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor hail damage to vegetation is
         possible.

Locations impacted include...
Demopolis, Forkland, Arcola, Old Spring Hill, Belmont, Birdine,
Demopolis Lock And Dam, Gallion, Laneville, Cedarville, McDowell, and
Demopolis Municipal Airport.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3248 8802 3267 8791 3260 8754 3235 8770
TIME...MOT...LOC 0038Z 280DEG 15KT 3250 8790

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...50 MPH

25/Owen

Local storm report, Aug 18, 7:43 PM CDT, 3 minutes before

Preliminary Local Storm Report
National Weather Service Birmingham AL
743 PM CDT Tue Aug 18 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0702 PM     Tstm Wnd Dmg     Clinton                 32.91N 87.99W
08/18/2026                   Greene             AL   911 Call Center

            Tree down along AL Highway 14 near Clinton.

&&

Grantham

The office that day

Everything else NWS Birmingham, AL issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 18, 7:09 PM CDT	Severe Thunderstorm Warning	BMX	Autauga, Dallas, Lowndes	51 min
Aug 18, 7:10 PM CDT	Special Weather Statement	BMX	Greene	35 min
Aug 18, 7:10 PM CDT	Severe Thunderstorm Warning	BMX	Marengo, Sumter	50 min
Aug 18, 7:38 PM CDT	Special Weather Statement	BMX	Marengo	37 min
Aug 18, 7:55 PM CDT	Severe Thunderstorm Warning	BMX	Marengo	35 min
Aug 18, 8:02 PM CDT	Special Weather Statement	BMX	Dallas, Lowndes	28 min
Aug 18, 8:34 PM CDT	Special Weather Statement	BMX	Autauga, Dallas, Lowndes	41 min
Aug 18, 9:24 PM CDT	Special Weather Statement	BMX	Lowndes, Montgomery	51 min
Aug 18, 10:05 PM CDT	Special Weather Statement	BMX	Pike	25 min
Aug 19, 12:05 PM CDT	Heat Advisory	BMX	Barbour, Bullock, Macon, Pike	33 hr
Aug 19, 3:24 PM CDT	Special Weather Statement	BMX	Dallas	36 min
Aug 19, 3:41 PM CDT	Special Weather Statement	BMX	Tuscaloosa	34 min
Aug 19, 3:43 PM CDT	Special Weather Statement	BMX	Greene	32 min
Aug 19, 3:44 PM CDT	Special Weather Statement	BMX	Sumter	31 min
Aug 19, 4:35 PM CDT	Special Weather Statement	BMX	Dallas	40 min
Aug 19, 4:53 PM CDT	Special Weather Statement	BMX	Lowndes	37 min
Aug 19, 5:48 PM CDT	Special Weather Statement	BMX	Greene	42 min
Aug 19, 5:50 PM CDT	Special Weather Statement	BMX	Tuscaloosa	40 min
Aug 19, 6:07 PM CDT	Special Weather Statement	BMX	Marengo	38 min
Aug 19, 6:42 PM CDT	Special Weather Statement	BMX	Hale	33 min
Aug 19, 6:46 PM CDT	Special Weather Statement	BMX	Marengo	29 min

Nearby

Severe Thunderstorm Warnings in Alabama, 2026 Every severe thunderstorm warning in 2026

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.