Alert archive / Alabama / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 85, NWS Birmingham, AL

May 3, 2021Chambers County, Lee County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at May 3, 2021, 6:34 PM CDT for Chambers County, Lee County, Alabama. It was in force for 41 min. 2 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, 6:34 PM CDT (23:34 UTC)
Expired: May 3, 2021, 7:15 PM CDT
In force: 41 min
Issued by: NWS Birmingham, AL
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Chambers County, AL, Lee County, AL

The radar

The Maxwell AFB radar (KMXX), 58 km from the middle of the area, began a volume at 23:35 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, 6:48 PM CDT	TSTM WND DMG	1 Se Opelika Sportsplex, AL	SEVERAL TREES AND WERE BLOWN DOWN AROUND OPELIKA.
May 3, 6:48 PM CDT	TSTM WND DMG	1 Se Opelika Sportsplex, AL	A FEW TREES WERE BLOWN DOWN AROUND OPELIKA.

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

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 11.6 hours before the alert went out and 98 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: 674 J/kg
Mixed-layer CIN: -54 J/kg
Mixed-layer LCL: 671 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 207 m²/s²
0-3 km storm-relative helicity: 272 m²/s²
Significant tornado parameter: 0.8
Supercell composite: 4.8

Open this sounding in Storm Lab

The text

As transmitted.

521 
WUUS54 KBMX 032334
SVRBMX
ALC017-081-040015-
/O.NEW.KBMX.SV.W.0085.210503T2334Z-210504T0015Z/

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

The National Weather Service in Birmingham has issued a

* Severe Thunderstorm Warning for...
  Northern Lee County in east central Alabama...
  Southern Chambers County in east central Alabama...

* Until 715 PM CDT.

* At 634 PM CDT, a severe thunderstorm was located over Oak Bowery,
  or 7 miles northwest of Opelika, moving east at 30 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...
  Auburn, Opelika, Valley, Waverly, Cusseta, Chambers County Lake,
  Beulah, Beans Mill, Huguley, Fairfax, River View, Sturkie, Oak
  Bowery, West Chambers, Lanett Municipal Airport, I 85 Welcome
  Center At Lanett and Mount Jefferson.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3266 8561 3286 8557 3284 8516 3283 8517
      3281 8517 3278 8512 3276 8514 3274 8511
      3272 8512 3269 8512 3266 8509 3265 8511
      3263 8508 3262 8509 3258 8507 3257 8506
TIME...MOT...LOC 2334Z 273DEG 28KT 3273 8546 

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

32/Davis

2 follow-up statements

931 
WWUS54 KBMX 032352
SVSBMX

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

ALC017-081-040015-
/O.CON.KBMX.SV.W.0085.000000T0000Z-210504T0015Z/
Lee AL-Chambers AL-
652 PM CDT Mon May 3 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 PM CDT
FOR NORTHEASTERN LEE AND SOUTHEASTERN CHAMBERS COUNTIES...

At 652 PM CDT, a severe thunderstorm was located over Beans Mill, or
near Opelika, moving east at 30 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...
Auburn, Opelika, Valley, Cusseta, Chambers County Lake, Beulah, Beans
Mill, Huguley, Fairfax, River View, Oak Bowery, Lanett Municipal
Airport, I 85 Welcome Center At Lanett and Mount Jefferson.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3264 8549 3284 8541 3284 8516 3283 8517
      3281 8517 3278 8512 3276 8514 3274 8511
      3272 8512 3269 8512 3266 8509 3265 8511
      3263 8508 3262 8509 3258 8507 3257 8506
TIME...MOT...LOC 2352Z 273DEG 28KT 3272 8529 

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

32/Davis

132 
WWUS54 KBMX 040004
SVSBMX

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

ALC017-081-040015-
/O.CON.KBMX.SV.W.0085.000000T0000Z-210504T0015Z/
Lee AL-Chambers AL-
704 PM CDT Mon May 3 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 PM CDT
FOR NORTHEASTERN LEE AND SOUTHEASTERN CHAMBERS COUNTIES...

At 704 PM CDT, a severe thunderstorm was located over Beulah, or 7
miles south of Valley, 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...
Valley, River View, Beulah, Beans Mill, Fairfax, Huguley and Lanett
Municipal Airport.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3262 8532 3283 8524 3284 8516 3283 8517
      3281 8517 3278 8512 3276 8514 3274 8511
      3272 8512 3269 8512 3266 8509 3265 8511
      3263 8508 3262 8509 3258 8507 3257 8506
TIME...MOT...LOC 0004Z 273DEG 28KT 3271 8518 

HAIL...0.75IN
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, 6:26 PM CDT	Severe Thunderstorm Warning	BMX	Autauga, Elmore, Montgomery	49 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.