Alert archive / Alabama / Special Weather Statements in 2021

Special Weather Statement, NWS Birmingham, AL

July 31, 2021Russell County, Alabama

NWS Birmingham, AL issued this special weather statement at Jul 31, 2021, 2:25 PM CDT for Russell County, Alabama. It was in force for 50 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: Jul 31, 2021, 2:25 PM CDT (19:25 UTC)
Expired: Jul 31, 2021, 3:15 PM CDT
In force: 50 min
Issued by: NWS Birmingham, AL

County Russell County, AL

The radar

The Maxwell AFB radar (KMXX), 72 km from the middle of the area, began a volume at 19:29 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.

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 7.4 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: 1160 J/kg
Mixed-layer CIN: -93 J/kg
Mixed-layer LCL: 1021 m above ground
0-6 km bulk shear: 8 kt
0-1 km storm-relative helicity: 12 m²/s²
0-3 km storm-relative helicity: 2 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

337 
WWUS84 KBMX 311925
SPSBMX

Special Weather Statement
National Weather Service Birmingham AL
225 PM CDT Sat Jul 31 2021
 
ALZ047-048-312015-
Lee AL-Russell AL-
225 PM CDT Sat Jul 31 2021

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN LEE AND NORTHEASTERN
RUSSELL COUNTIES UNTIL 315 PM CDT...

At 225 PM CDT, Doppler radar was tracking a strong thunderstorm near
Griffen Mill, or 7 miles southwest of Smiths, moving southeast at 15
mph.

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

Locations impacted include...
Smiths, Smiths Station, Ladonia, Russell County Sports Complex,
Seale, Bleecker, Griffen Mill, Monterey Heights, Fort Mitchell,
Ladonia Sports Complex, Phenix Drag Strip and Parkmanville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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.

&&

LAT...LON 3237 8499 3236 8498 3234 8501 3232 8501
      3224 8523 3254 8530 3263 8512 3239 8497
      3239 8498 3238 8499 3238 8497
TIME...MOT...LOC 1925Z 334DEG 14KT 3250 8520 

$$

87/GRANTHAM

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 30, 7:07 PM CDT	Special Weather Statement	BMX	Winston	38 min
Jul 30, 7:45 PM CDT	Severe Thunderstorm Warning	BMX	Cherokee, Etowah	31 min
Jul 30, 7:51 PM CDT	Severe Thunderstorm Warning	BMX	Blount	39 min
Jul 31, 2:26 PM CDT	Special Weather Statement	BMX	St. Clair	49 min
Jul 31, 2:28 PM CDT	Special Weather Statement	BMX	Chilton	47 min
Jul 31, 2:29 PM CDT	Special Weather Statement	BMX	Dallas	46 min
Jul 31, 2:44 PM CDT	Special Weather Statement	BMX	Shelby	46 min
Jul 31, 2:47 PM CDT	Special Weather Statement	BMX	Jefferson, Walker	43 min
Jul 31, 2:56 PM CDT	Severe Thunderstorm Warning	BMX	Blount, Jefferson, Walker	49 min
Jul 31, 3:04 PM CDT	Severe Thunderstorm Warning	BMX	Calhoun, St. Clair, Talladega	41 min
Jul 31, 3:09 PM CDT	Special Weather Statement	BMX	Chilton	51 min
Jul 31, 3:11 PM CDT	Special Weather Statement	BMX	Russell	34 min
Jul 31, 3:23 PM CDT	Special Weather Statement	BMX	Coosa	37 min
Jul 31, 3:34 PM CDT	Severe Thunderstorm Warning	BMX	Jefferson, Shelby	41 min
Jul 31, 3:38 PM CDT	Severe Thunderstorm Warning	BMX	Chilton, Coosa, Shelby, Talladega	52 min
Jul 31, 3:41 PM CDT	Special Weather Statement	BMX	Talladega	34 min
Jul 31, 3:57 PM CDT	Special Weather Statement	BMX	Shelby	33 min
Jul 31, 3:59 PM CDT	Special Weather Statement	BMX	Elmore, Montgomery	46 min
Jul 31, 4:12 PM CDT	Special Weather Statement	BMX	Clay, Randolph	48 min
Jul 31, 4:18 PM CDT	Special Weather Statement	BMX	Chambers	42 min
Jul 31, 4:22 PM CDT	Special Weather Statement	BMX	Tallapoosa	53 min
Jul 31, 4:45 PM CDT	Severe Thunderstorm Warning	BMX	Tallapoosa	45 min
Jul 31, 4:49 PM CDT	Special Weather Statement	BMX	Bibb	41 min
Jul 31, 5:00 PM CDT	Special Weather Statement	BMX	Lee	60 min
Jul 31, 6:36 PM CDT	Special Weather Statement	BMX	Barbour, Russell	39 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.