Alert archive / Alabama / Special Weather Statements in 2021

Special Weather Statement, NWS Birmingham, AL

June 3, 2021Elmore County, Alabama

NWS Birmingham, AL issued this special weather statement at Jun 3, 2021, 2:21 PM CDT for Elmore County, Alabama. It was in force for 24 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: Jun 3, 2021, 2:21 PM CDT (19:21 UTC)
Expired: Jun 3, 2021, 2:45 PM CDT
In force: 24 min
Issued by: NWS Birmingham, AL

County Elmore County, AL

The radar

The Maxwell AFB radar (KMXX), 59 km from the middle of the area, began a volume at 19:22 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, 7.4 hours before the alert went out and 63 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: 954 J/kg
Mixed-layer CIN: -27 J/kg
Mixed-layer LCL: 701 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 67 m²/s²
0-3 km storm-relative helicity: 77 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 1.8

Open this sounding in Storm Lab

The text

As transmitted.

420 
WWUS84 KBMX 031921
SPSBMX

Special Weather Statement
National Weather Service Birmingham AL
221 PM CDT Thu Jun 3 2021
 
ALZ035-041-043-031945-
Chilton AL-Autauga AL-Elmore AL-
221 PM CDT Thu Jun 3 2021

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN AUTAUGA...
NORTHWESTERN ELMORE AND SOUTHEASTERN CHILTON COUNTIES UNTIL 245 PM
CDT...

At 220 PM CDT, Doppler radar was tracking a strong thunderstorm over
Marbury, or 13 miles southeast of Clanton, moving east at 15 mph.

Winds in excess of 40 mph will be possible with this storm.

Locations impacted include...
Jordan Lake, Marbury, Welona, Titus, Weoka Mills, Holtville and New
Prospect.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

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

&&

LAT...LON 3265 8654 3275 8653 3276 8639 3275 8637
      3275 8634 3277 8634 3277 8632 3275 8632
      3275 8630 3271 8628 3263 8630
TIME...MOT...LOC 1920Z 266DEG 15KT 3270 8646 

$$

40/Sizemore

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 3, 12:26 PM CDT	Special Weather Statement	BMX	Autauga	34 min
Jun 3, 12:29 PM CDT	Special Weather Statement	BMX	Cleburne	31 min
Jun 3, 1:50 PM CDT	Special Weather Statement	BMX	Chilton	25 min
Jun 3, 2:30 PM CDT	Special Weather Statement	BMX	Talladega	30 min
Jun 3, 2:51 PM CDT	Special Weather Statement	BMX	Cleburne	24 min
Jun 3, 3:42 PM CDT	Special Weather Statement	BMX	Dallas	33 min
Jun 3, 5:53 PM CDT	Special Weather Statement	BMX	St. Clair	37 min

Nearby

Special Weather Statements in Alabama, 2021 Every special weather statement 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.