Alert archive / Alabama / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 139, NWS Birmingham, AL

August 2, 2021Elmore County, Macon County, Montgomery County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Aug 2, 2021, 3:29 PM CDT for Elmore County, Macon County, Montgomery County, Alabama. It was in force for 25 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Aug 2, 2021, 3:29 PM CDT (20:29 UTC)
Expired: Aug 2, 2021, 3:54 PM CDT
In force: 25 min
Issued by: NWS Birmingham, AL
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Elmore County, AL, Macon County, AL, Montgomery County, AL

The radar

The Maxwell AFB radar (KMXX), 22 km from the middle of the area, began a volume at 20:32 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.

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 8.5 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: 211 J/kg
Mixed-layer CIN: -147 J/kg
Mixed-layer LCL: 936 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 39 m²/s²
0-3 km storm-relative helicity: 51 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.4

Open this sounding in Storm Lab

The text

As transmitted.

256 
WUUS54 KBMX 022029
SVRBMX
ALC051-087-101-022115-
/O.NEW.KBMX.SV.W.0139.210802T2029Z-210802T2115Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Birmingham AL
329 PM CDT Mon Aug 2 2021

The National Weather Service in Birmingham has issued a

* Severe Thunderstorm Warning for...
  Southeastern Elmore County in east central Alabama...
  Western Macon County in southeastern Alabama...
  Northeastern Montgomery County in south central Alabama...

* Until 415 PM CDT.

* At 329 PM CDT, a severe thunderstorm was located over eastern
  Montgomery, moving east at 30 mph.

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

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* Locations impacted include...
  Eastern Montgomery, Tuskegee, Tallassee, Notasulga, Milstead, Pike
  Road, Shorter, Franklin, Auburn University In Montgomery, Lake
  Tuskegee, Davisville, Waugh, Lagoon Park, Liverpool, Hardaway,
  Mount Meigs, Eastdale Mall, Tysonville, Victoryland and Mitylene.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Large hail and damaging winds and continuous cloud to ground
lightning is occurring with this storm. Move indoors immediately.
Lightning is one of nature's leading killers. Remember, if you can
hear thunder, you are close enough to be struck by lightning.

&&

LAT...LON 3241 8624 3251 8589 3249 8589 3249 8580
      3254 8580 3257 8569 3231 8561 3227 8588
      3229 8588 3230 8590 3227 8590 3227 8598
      3225 8599 3222 8619
TIME...MOT...LOC 2029Z 256DEG 27KT 3234 8615 

HAIL...0.75IN
WIND...60MPH
 
$$

JD/02

3 follow-up statements

307 
WWUS54 KBMX 022043
SVSBMX

Severe Weather Statement
National Weather Service Birmingham AL
343 PM CDT Mon Aug 2 2021

ALC051-087-101-022115-
/O.CON.KBMX.SV.W.0139.000000T0000Z-210802T2115Z/
Elmore AL-Macon AL-Montgomery AL-
343 PM CDT Mon Aug 2 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 415 PM CDT
FOR SOUTHEASTERN ELMORE...WESTERN MACON AND NORTHEASTERN MONTGOMERY
COUNTIES...

At 342 PM CDT, a severe thunderstorm was located over Waugh, or 9
miles southwest of Milstead, moving east at 30 mph.

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

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
Southeastern Montgomery, Tuskegee, Tallassee, Notasulga, Milstead,
Shorter, Franklin, Liverpool, Lake Tuskegee, Hardaway, Mount Meigs,
Tysonville, Victoryland, Davisville, Waugh, Uphapee Creek, Cross
Keys, Brassell, Ware and Cecil.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3243 8616 3251 8589 3249 8589 3249 8580
      3254 8580 3257 8569 3231 8561 3227 8588
      3229 8588 3230 8590 3227 8590 3227 8598
      3225 8599 3224 8610
TIME...MOT...LOC 2042Z 256DEG 27KT 3236 8603 

HAIL...0.75IN
WIND...60MPH
 
$$

JD/02

874 
WWUS54 KBMX 022050
SVSBMX

Severe Weather Statement
National Weather Service Birmingham AL
350 PM CDT Mon Aug 2 2021

ALC051-101-022059-
/O.CAN.KBMX.SV.W.0139.000000T0000Z-210802T2115Z/
Elmore AL-Montgomery AL-
350 PM CDT Mon Aug 2 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN ELMORE AND
NORTHEASTERN MONTGOMERY COUNTIES IS CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

LAT...LON 3228 8588 3230 8590 3228 8590 3227 8592
      3234 8599 3242 8602 3243 8599 3244 8599
      3245 8598 3244 8596 3245 8588 3247 8587
      3248 8585 3249 8586 3249 8580 3253 8580
      3256 8569 3231 8561
TIME...MOT...LOC 2049Z 256DEG 27KT 3237 8597 

$$

ALC087-022115-
/O.CON.KBMX.SV.W.0139.000000T0000Z-210802T2115Z/
Macon AL-
350 PM CDT Mon Aug 2 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 415 PM CDT
FOR WESTERN MACON COUNTY...

At 349 PM CDT, a severe thunderstorm was located over Shorter, or
near Milstead, moving east at 30 mph.

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

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
Tuskegee, Notasulga, Milstead, Shorter, Franklin, Liverpool, Lake
Tuskegee, Hardaway, Tysonville, Victoryland, Davisville, Uphapee
Creek, Cross Keys and Moton Field Municipal Airport.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3228 8588 3230 8590 3228 8590 3227 8592
      3234 8599 3242 8602 3243 8599 3244 8599
      3245 8598 3244 8596 3245 8588 3247 8587
      3248 8585 3249 8586 3249 8580 3253 8580
      3256 8569 3231 8561
TIME...MOT...LOC 2049Z 256DEG 27KT 3237 8597 

HAIL...0.75IN
WIND...60MPH
 
$$

JD/02

089 
WWUS54 KBMX 022054
SVSBMX

Severe Weather Statement
National Weather Service Birmingham AL
354 PM CDT Mon Aug 2 2021

ALC087-022103-
/O.CAN.KBMX.SV.W.0139.000000T0000Z-210802T2115Z/
Macon AL-
354 PM CDT Mon Aug 2 2021

...THE SEVERE THUNDERSTORM WARNING FOR WESTERN MACON COUNTY IS
CANCELLED...
        
The storm which prompted the warning has weakened below severe
limits. Therefore, the warning has been cancelled.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Birmingham.

LAT...LON 3228 8588 3230 8590 3228 8590 3227 8592
      3234 8599 3242 8602 3243 8599 3244 8599
      3245 8598 3244 8596 3245 8588 3247 8587
      3248 8585 3249 8586 3249 8580 3253 8580
      3256 8569 3231 8561
TIME...MOT...LOC 2050Z 256DEG 27KT 3238 8593 

$$

JD/02

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 1, 8:47 PM CDT	Special Weather Statement	BMX	Marengo	43 min
Aug 1, 9:11 PM CDT	Severe Thunderstorm Warning	BMX	Marengo	49 min
Aug 1, 9:25 PM CDT	Special Weather Statement	BMX	Dallas	50 min
Aug 1, 9:31 PM CDT	Areal Flood Advisory	BMX	Marengo	3 hr
Aug 1, 10:02 PM CDT	Special Weather Statement	BMX	Marengo	43 min
Aug 1, 11:08 PM CDT	Special Weather Statement	BMX	Sumter	52 min
Aug 2, 12:24 AM CDT	Special Weather Statement	BMX	Hale	51 min
Aug 2, 1:15 AM CDT	Special Weather Statement	BMX	Montgomery	30 min
Aug 2, 11:37 AM CDT	Special Weather Statement	BMX	Marengo	38 min
Aug 2, 1:52 PM CDT	Special Weather Statement	BMX	Bullock	38 min
Aug 2, 2:56 PM CDT	Special Weather Statement	BMX	Montgomery	34 min
Aug 2, 3:13 PM CDT	Special Weather Statement	BMX	Montgomery	32 min
Aug 2, 4:18 PM CDT	Special Weather Statement	BMX	Russell	27 min

Nearby

Severe Thunderstorm Warnings in Alabama, 2021 Every severe thunderstorm warning in 2021

Sources

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