Alert archive / Alabama / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 122, NWS Birmingham, AL

June 12, 2021Chambers County, Lee County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Jun 12, 2021, 6:42 PM CDT for Chambers County, Lee County, Alabama. It was in force for 20 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: Jun 12, 2021, 6:42 PM CDT (23:42 UTC)
Expired: Jun 12, 2021, 7:02 PM CDT
In force: 20 min
Issued by: NWS Birmingham, AL
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Chambers County, AL, Lee County, AL

The radar

The Maxwell AFB radar (KMXX), 62 km from the middle of the area, began a volume at 23:44 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
Jun 12, 6:54 PM CDT	TSTM WND DMG	2 N Cusseta, AL	SEVERAL TREES DOWN ALONG CR 187 NEAR CR 84 AND 83. TIME ESTIMATED BY RADAR.

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

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 11.7 hours before the alert went out and 92 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: 886 J/kg
Mixed-layer CIN: -34 J/kg
Mixed-layer LCL: 658 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 65 m²/s²
0-3 km storm-relative helicity: 70 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 1.6

Open this sounding in Storm Lab

The text

As transmitted.

502 
WUUS54 KBMX 122342
SVRBMX
ALC017-081-130030-
/O.NEW.KBMX.SV.W.0122.210612T2342Z-210613T0030Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Birmingham AL
642 PM CDT Sat Jun 12 2021

The National Weather Service in Birmingham has issued a

* Severe Thunderstorm Warning for...
  Northeastern Lee County in east central Alabama...
  Southeastern Chambers County in east central Alabama...

* Until 730 PM CDT.

* At 642 PM CDT, a severe thunderstorm was located near Huguley, or
  near Lanett, moving south at 20 mph.

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

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Opelika, Valley, Lanett, La Fayette, Lakeview, Cusseta, Chambers
  County Lake, Beulah, Beans Mill, Huguley, Fairfax, River View,
  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 8539 3290 8539 3292 8519 3286 8519
      3285 8518 3286 8516 3284 8515 3283 8517
      3281 8517 3278 8513 3277 8513 3276 8514
      3274 8513 3274 8512 3269 8512 3266 8509
TIME...MOT...LOC 2342Z 354DEG 17KT 3285 8528 

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

25/Owen

1 follow-up statement

629 
WWUS54 KBMX 130002
SVSBMX

Severe Weather Statement
National Weather Service Birmingham AL
702 PM CDT Sat Jun 12 2021

ALC017-081-130012-
/O.CAN.KBMX.SV.W.0122.000000T0000Z-210613T0030Z/
Lee AL-Chambers AL-
702 PM CDT Sat Jun 12 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN LEE AND
SOUTHEASTERN CHAMBERS COUNTIES IS CANCELLED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning has been cancelled.  However gusty winds are
still possible with this thunderstorm.

LAT...LON 3264 8539 3290 8539 3292 8519 3286 8519
      3285 8518 3286 8516 3284 8515 3283 8517
      3281 8517 3278 8513 3277 8513 3276 8514
      3274 8513 3274 8512 3269 8512 3266 8509
TIME...MOT...LOC 0000Z 354DEG 17KT 3276 8527 

$$

25/Owen

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 12, 12:17 PM CDT	Special Weather Statement	BMX	Winston	28 min
Jun 12, 12:37 PM CDT	Special Weather Statement	BMX	Bibb	23 min
Jun 12, 12:48 PM CDT	Special Weather Statement	BMX	Winston	27 min
Jun 12, 1:01 PM CDT	Special Weather Statement	BMX	Bullock	29 min
Jun 12, 1:05 PM CDT	Special Weather Statement	BMX	Bibb	25 min
Jun 12, 1:17 PM CDT	Special Weather Statement	BMX	Walker	43 min
Jun 12, 1:24 PM CDT	Special Weather Statement	BMX	Tuscaloosa	36 min
Jun 12, 1:25 PM CDT	Special Weather Statement	BMX	Tuscaloosa	35 min
Jun 12, 1:35 PM CDT	Special Weather Statement	BMX	Chilton	25 min
Jun 12, 2:05 PM CDT	Special Weather Statement	BMX	Chilton	25 min
Jun 12, 2:11 PM CDT	Severe Thunderstorm Warning	BMX	Chilton	17 min
Jun 12, 2:20 PM CDT	Special Weather Statement	BMX	Walker	40 min
Jun 12, 2:31 PM CDT	Severe Thunderstorm Warning	BMX	Autauga, Dallas	44 min
Jun 12, 2:39 PM CDT	Special Weather Statement	BMX	Montgomery	36 min
Jun 12, 2:49 PM CDT	Severe Thunderstorm Warning	BMX	Montgomery	18 min
Jun 12, 2:59 PM CDT	Special Weather Statement	BMX	Montgomery	31 min
Jun 12, 3:26 PM CDT	Special Weather Statement	BMX	Winston	34 min
Jun 12, 3:34 PM CDT	Special Weather Statement	BMX	Tuscaloosa	41 min
Jun 12, 3:53 PM CDT	Special Weather Statement	BMX	Winston	37 min
Jun 12, 4:05 PM CDT	Special Weather Statement	BMX	Pike	40 min
Jun 12, 4:18 PM CDT	Special Weather Statement	BMX	Walker	42 min
Jun 12, 4:24 PM CDT	Special Weather Statement	BMX	Tuscaloosa	51 min
Jun 12, 4:56 PM CDT	Special Weather Statement	BMX	Tuscaloosa	49 min
Jun 12, 5:01 PM CDT	Areal Flood Advisory	BMX	Fayette, Tuscaloosa, Walker	119 min
Jun 12, 5:19 PM CDT	Severe Thunderstorm Warning	BMX	Tuscaloosa	28 min
Jun 12, 5:28 PM CDT	Special Weather Statement	BMX	Fayette	32 min
Jun 12, 5:44 PM CDT	Special Weather Statement	BMX	Pickens	31 min
Jun 12, 5:45 PM CDT	Special Weather Statement	BMX	Greene	45 min
Jun 12, 5:49 PM CDT	Special Weather Statement	BMX	Tuscaloosa	41 min
Jun 12, 5:51 PM CDT	Severe Thunderstorm Warning	BMX	Greene, Hale, Tuscaloosa	39 min
Jun 12, 6:17 PM CDT	Special Weather Statement	BMX	Lamar	28 min
Jun 12, 6:28 PM CDT	Special Weather Statement	BMX	Greene, Hale, Pickens	47 min
Jun 12, 6:37 PM CDT	Special Weather Statement	BMX	Pickens	38 min
Jun 12, 6:39 PM CDT	Special Weather Statement	BMX	Chambers	36 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.