Alert archive / Alabama / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 84, NWS Birmingham, AL

May 3, 2021Autauga County, Elmore County, Montgomery County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at May 3, 2021, 6:26 PM CDT for Autauga County, Elmore County, Montgomery County, Alabama. It was in force for 49 min. 5 reports 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: May 3, 2021, 6:26 PM CDT (23:26 UTC)
Expired: May 3, 2021, 7:15 PM CDT
In force: 49 min
Issued by: NWS Birmingham, AL
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Autauga County, AL, Elmore County, AL, Montgomery County, AL

The radar

The Maxwell AFB radar (KMXX), 57 km from the middle of the area, began a volume at 23:29 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
May 3, 6:30 PM CDT	HAIL 1	3 Nne Prattville, AL	QUARTER SIZE HAIL WAS REPORTED ON OLD RIDGE ROAD NORTH OF PRATTVILLE.
May 3, 6:46 PM CDT	TSTM WND DMG	1 W Wetumpka, AL	TREE BLOWN DOWN ON OSCEOLA ST.
May 3, 6:47 PM CDT	TSTM WND DMG	1 Ssw Wetumpka Muni Air, AL	TREE BLOWN DOWN AT INTERSECTION OF MEADOW LANE DR AND AIRPORT ROAD.
May 3, 6:47 PM CDT	TSTM WND DMG	1 Wsw Wetumpka, AL	SEVERAL TREES WERE BLOWN DOWN AROUND WETUMPKA.
May 3, 6:53 PM CDT	TSTM WND DMG	Coosada, AL	SEVERAL TREES WERE BLOWN DOWN AROUND COOSADA.

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

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
May 3, 11:47 AM CDT	Severe Thunderstorm Watch	SPC	10 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 11.4 hours before the alert went out and 86 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: 1106 J/kg
Mixed-layer CIN: -20 J/kg
Mixed-layer LCL: 552 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: 313 m²/s²
0-3 km storm-relative helicity: 363 m²/s²
Significant tornado parameter: 1.7
Supercell composite: 11.4

Open this sounding in Storm Lab

The text

As transmitted.

751 
WUUS54 KBMX 032326
SVRBMX
ALC001-051-101-040015-
/O.NEW.KBMX.SV.W.0084.210503T2326Z-210504T0015Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Birmingham AL
626 PM CDT Mon May 3 2021

The National Weather Service in Birmingham has issued a

* Severe Thunderstorm Warning for...
  East central Autauga County in central Alabama...
  Southwestern Elmore County in east central Alabama...
  North central Montgomery County in south central Alabama...

* Until 715 PM CDT.

* At 625 PM CDT, a severe thunderstorm was located over Autauga
  County Airport, or near Prattville, moving east at 25 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...
  Prattville, Millbrook, Wetumpka, Elmore, Coosada, Deatsville, Bob
  Woodruff Lake, Autauga County Airport, Emerald Mountain, Blue
  Ridge, Boylston, Wetumpka Municipal Airport, Wallsboro and
  Tallapoosa Water Plant.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3240 8654 3251 8655 3262 8623 3245 8609
TIME...MOT...LOC 2325Z 252DEG 20KT 3245 8650 

HAIL...1.00IN
WIND...60MPH
 
$$

32/Davis

3 follow-up statements

776 
WWUS54 KBMX 032329
SVSBMX

Severe Weather Statement
National Weather Service Birmingham AL
629 PM CDT Mon May 3 2021

ALC001-051-101-040015-
/O.CON.KBMX.SV.W.0084.000000T0000Z-210504T0015Z/
Autauga AL-Elmore AL-Montgomery AL-
629 PM CDT Mon May 3 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 PM CDT
FOR EAST CENTRAL AUTAUGA...SOUTHWESTERN ELMORE AND NORTH CENTRAL
MONTGOMERY COUNTIES...

At 629 PM CDT, a severe thunderstorm was located over Prattville,
moving east at 25 mph.

HAZARD...Golf ball size hail and 60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...People and animals outdoors will be injured. Expect hail 
         damage to roofs, siding, windows, and vehicles. Expect wind 
         damage to roofs, siding, and trees.

Locations impacted include...
Prattville, Millbrook, Wetumpka, Elmore, Coosada, Deatsville, Bob
Woodruff Lake, Autauga County Airport, Emerald Mountain, Blue Ridge,
Boylston, Wetumpka Municipal Airport, Wallsboro and Tallapoosa Water
Plant.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3240 8654 3251 8655 3262 8623 3245 8609
TIME...MOT...LOC 2329Z 252DEG 20KT 3246 8647 

HAIL...1.75IN
WIND...60MPH
 
$$

32/Davis

908 
WWUS54 KBMX 032350
SVSBMX

Severe Weather Statement
National Weather Service Birmingham AL
650 PM CDT Mon May 3 2021

ALC001-040000-
/O.CAN.KBMX.SV.W.0084.000000T0000Z-210504T0015Z/
Autauga AL-
650 PM CDT Mon May 3 2021

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL AUTAUGA COUNTY IS
CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

A Severe Thunderstorm Watch remains in effect until 800 PM CDT for
south central and east central Alabama.

LAT...LON 3252 8641 3259 8620 3245 8609 3241 8641
TIME...MOT...LOC 2350Z 277DEG 23KT 3246 8632 

$$

ALC051-101-040015-
/O.CON.KBMX.SV.W.0084.000000T0000Z-210504T0015Z/
Elmore AL-Montgomery AL-
650 PM CDT Mon May 3 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 PM CDT
FOR SOUTHWESTERN ELMORE AND NORTH CENTRAL MONTGOMERY COUNTIES...

At 650 PM CDT, a severe thunderstorm was located over Coosada, or
over Millbrook, moving east at 25 mph.

HAZARD...Golf ball size hail and 60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...People and animals outdoors will be injured. Expect hail 
         damage to roofs, siding, windows, and vehicles. Expect wind 
         damage to roofs, siding, and trees.

Locations impacted include...
Prattville, Millbrook, Wetumpka, Elmore, Coosada, Emerald Mountain,
Boylston, Blue Ridge, Bob Woodruff Lake, Wallsboro, Wetumpka
Municipal Airport and Tallapoosa Water Plant.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3252 8641 3259 8620 3245 8609 3241 8641
TIME...MOT...LOC 2350Z 277DEG 23KT 3246 8632 

HAIL...1.75IN
WIND...60MPH
 
$$

32/Davis

094 
WWUS54 KBMX 040005
SVSBMX

Severe Weather Statement
National Weather Service Birmingham AL
705 PM CDT Mon May 3 2021

ALC051-101-040015-
/O.CON.KBMX.SV.W.0084.000000T0000Z-210504T0015Z/
Elmore AL-Montgomery AL-
705 PM CDT Mon May 3 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 PM CDT
FOR SOUTHWESTERN ELMORE AND NORTH CENTRAL MONTGOMERY COUNTIES...

At 705 PM CDT, a severe thunderstorm was located over Lagoon Park, or
near Wetumpka, moving east at 25 mph.

HAZARD...60 mph wind gusts and half dollar size hail.

SOURCE...Radar indicated.

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

Locations impacted include...
Wetumpka, Emerald Mountain, Blue Ridge, Bob Woodruff Lake, Boylston
and Tallapoosa Water Plant.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3253 8627 3254 8616 3245 8609 3242 8633
TIME...MOT...LOC 0005Z 279DEG 20KT 3245 8623 

HAIL...1.25IN
WIND...60MPH
 
$$

32/Davis

The office that day

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

Issued	Product	Office	Counties	Lasted
May 3, 5:39 AM CDT	Special Weather Statement	BMX	Talladega	36 min
May 3, 7:41 AM CDT	Special Weather Statement	BMX	Cleburne	19 min
May 3, 8:18 AM CDT	Special Weather Statement	BMX	Cleburne	27 min
May 3, 12:13 PM CDT	Special Weather Statement	BMX	Bullock	32 min
May 3, 12:27 PM CDT	Special Weather Statement	BMX	Barbour	33 min
May 3, 12:45 PM CDT	Special Weather Statement	BMX	Russell	45 min
May 3, 1:41 PM CDT	Special Weather Statement	BMX	Lamar	49 min
May 3, 2:24 PM CDT	Severe Thunderstorm Warning	BMX	Pickens	66 min
May 3, 2:25 PM CDT	Special Weather Statement	BMX	Chilton	35 min
May 3, 3:00 PM CDT	Special Weather Statement	BMX	Chilton, Coosa	45 min
May 3, 3:30 PM CDT	Special Weather Statement	BMX	Pickens	30 min
May 3, 3:46 PM CDT	Special Weather Statement	BMX	Talladega	44 min
May 3, 3:48 PM CDT	Special Weather Statement	BMX	Bibb	42 min
May 3, 3:53 PM CDT	Special Weather Statement	BMX	Hale	52 min
May 3, 4:21 PM CDT	Special Weather Statement	BMX	Lee	39 min
May 3, 4:25 PM CDT	Special Weather Statement	BMX	Calhoun	50 min
May 3, 4:31 PM CDT	Special Weather Statement	BMX	Bibb, Coosa	44 min
May 3, 4:49 PM CDT	Special Weather Statement	BMX	Calhoun	41 min
May 3, 5:12 PM CDT	Special Weather Statement	BMX	Coosa, Tallapoosa	48 min
May 3, 5:29 PM CDT	Special Weather Statement	BMX	Cherokee	31 min
May 3, 5:53 PM CDT	Special Weather Statement	BMX	Autauga	52 min
May 3, 5:58 PM CDT	Special Weather Statement	BMX	Tallapoosa	47 min
May 3, 6:20 PM CDT	Special Weather Statement	BMX	Lee	25 min
May 3, 6:34 PM CDT	Severe Thunderstorm Warning	BMX	Chambers, Lee	41 min
May 3, 6:44 PM CDT	Special Weather Statement	BMX	Elmore	31 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.