Alert archive / Alabama / Special Weather Statements in 2012

Special Weather Statement, NWS Birmingham, AL

July 1, 2012Barbour County, Alabama

NWS Birmingham, AL issued this special weather statement at Jul 1, 2012, 11:21 PM CDT for Barbour County, Alabama. It was in force for 39 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 1, 2012, 11:21 PM CDT (04:21 UTC)
Expired: Jul 2, 2012, 12:00 AM CDT
In force: 39 min
Issued by: NWS Birmingham, AL

County Barbour County, AL

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 00:00Z, 4.4 hours before the alert went out and 180 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: 8567 J/kg
Mixed-layer CIN: 0 J/kg
Mixed-layer LCL: 502 m above ground
0-6 km bulk shear: 13 kt
0-1 km storm-relative helicity: -33 m²/s²
0-3 km storm-relative helicity: 178 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

721 
WWUS84 KBMX 020421
SPSBMX

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
1121 PM CDT SUN JUL 1 2012

ALZ050-020500-
BARBOUR AL-
1121 PM CDT SUN JUL 1 2012

...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL BARBOUR COUNTY UNTIL
MIDNIGHT CDT...

AT 1118 PM CDT...THE NATIONAL WEATHER SERVICE WAS TRACKING A STRONG
THUNDERSTORM NEAR GEORGETOWN...MOVING WEST AT 10 MPH.

HAIL UP TO THE SIZE OF PENNIES AND WIND GUSTS UP TO 40 MPH ARE
EXPECTED WITH THIS STORM.

LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...
  EUFAULA...
  OSCO...
  GAINO...
  WHITE OAK...
  RICHARDS CROSSROADS...


&&

LAT...LON 3170 8548 3198 8552 3196 8507 3194 8508
      3190 8511 3189 8513 3176 8513 3177 8516
      3173 8520 3171 8521 3170 8522
TIME...MOT...LOC 0421Z 085DEG 11KT 3187 8513

$$

08

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 1, 7:02 PM CDT	Severe Thunderstorm Warning	BMX	Cherokee, Etowah	43 min
Jul 1, 7:44 PM CDT	Special Weather Statement	BMX	Cherokee	46 min
Jul 1, 10:31 PM CDT	Special Weather Statement	BMX	Russell	44 min
Jul 2, 12:00 AM CDT	Special Weather Statement	BMX	Barbour	30 min
Jul 2, 12:29 AM CDT	Special Weather Statement	BMX	Barbour, Pike	46 min
Jul 2, 1:34 AM CDT	Special Weather Statement	BMX	Barbour	26 min
Jul 2, 1:58 AM CDT	Special Weather Statement	BMX	Barbour	62 min
Jul 2, 2:48 AM CDT	Special Weather Statement	BMX	Bullock	42 min
Jul 2, 3:34 AM CDT	Areal Flood Advisory	BMX	Barbour, Bullock, Montgomery, Pike	3 hr
Jul 2, 3:39 AM CDT	Special Weather Statement	BMX	Bullock	51 min
Jul 2, 3:47 AM CDT	Special Weather Statement	BMX	Clay	28 min
Jul 2, 4:15 AM CDT	Special Weather Statement	BMX	Clay	45 min
Jul 2, 4:59 AM CDT	Special Weather Statement	BMX	Randolph, St. Clair	61 min
Jul 2, 5:28 AM CDT	Areal Flood Advisory	BMX	Calhoun, Clay, Cleburne, Randolph, Talladega	3 hr
Jul 2, 5:34 AM CDT	Severe Thunderstorm Warning	BMX	St. Clair	26 min
Jul 2, 5:52 AM CDT	Special Weather Statement	BMX	Chambers	53 min
Jul 2, 5:54 AM CDT	Special Weather Statement	BMX	Cleburne	36 min
Jul 2, 6:00 AM CDT	Severe Thunderstorm Warning	BMX	Calhoun, Etowah, St. Clair	30 min
Jul 2, 6:37 AM CDT	Special Weather Statement	BMX	Jefferson	23 min
Jul 2, 7:04 AM CDT	Special Weather Statement	BMX	Walker	41 min
Jul 2, 7:10 AM CDT	Special Weather Statement	BMX	Jefferson	50 min
Jul 2, 7:18 AM CDT	Severe Thunderstorm Warning	BMX	Jefferson, Walker	27 min
Jul 2, 7:35 AM CDT	Areal Flood Advisory	BMX	Jefferson	3 hr
Jul 2, 7:44 AM CDT	Special Weather Statement	BMX	Jefferson	46 min
Jul 2, 8:05 AM CDT	Special Weather Statement	BMX	Winston	40 min
Jul 2, 8:32 AM CDT	Areal Flood Advisory	BMX	Walker	3 hr
Jul 2, 9:01 AM CDT	Special Weather Statement	BMX	Winston	44 min
Jul 2, 9:24 AM CDT	Areal Flood Advisory	BMX	Winston	3 hr
Jul 2, 10:46 AM CDT	Special Weather Statement	BMX	Perry	44 min
Jul 2, 11:15 AM CDT	Severe Thunderstorm Warning	BMX	Perry	25 min

Nearby

Special Weather Statements in Alabama, 2012 Every special weather statement in 2012

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.