Alert archive / Alabama / Special Weather Statements in 2012

Special Weather Statement, NWS Birmingham, AL

August 1, 2012Chambers County, Alabama

NWS Birmingham, AL issued this special weather statement at Aug 1, 2012, 7:13 PM CDT for Chambers County, Alabama. It was in force for 47 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
Aug 1, 2012, 7:13 PM CDT (00:13 UTC)
Expired
Aug 1, 2012, 8:00 PM CDT
In force
47 min
Issued by
NWS Birmingham, AL

County Chambers County, AL

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 0.2 hours before the alert went out and 87 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-pSkew-T log-p diagram, Peachtre/Fal Fld, GA at 00:00Z on 2012-08-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1449 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Peachtre/Fal Fld, GA at 00:00Z on 2012-08-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 14 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
1449 J/kg
Mixed-layer CIN
-46 J/kg
Mixed-layer LCL
1724 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
14 m²/s²
0-3 km storm-relative helicity
23 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.6

Open this sounding in Storm Lab

The text

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

736 
WWUS84 KBMX 020013
SPSBMX

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
713 PM CDT WED AUG 1 2012

ALZ038-020100-
CHAMBERS AL-
713 PM CDT WED AUG 1 2012

...SIGNIFICANT WEATHER ADVISORY FOR EASTERN CHAMBERS COUNTY UNTIL 800
PM CDT...

AT 710 PM CDT...THE NATIONAL WEATHER SERVICE WAS TRACKING A STRONG
THUNDERSTORM NEAR FREDONIA...OR 7 MILES SOUTHEAST OF STROUD...MOVING
SOUTHEAST AT 10 MPH.

PEA SIZE HAIL AND WIND GUSTS UP TO 40 MPH ARE EXPECTED WITH THIS
STORM...ALONG WITH HEAVY RAIN AND FREQUENT DANGEROUS LIGHTNING.

LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...
  LANETT...
  VALLEY...
  VEASEY CREEK PARK...
  CHAMBERS COUNTY LAKE...
  AMITY PARK...

TORRENTIAL RAIN...WHICH MAY FLOOD LOW LYING AREAS SUCH AS DITCHES AND
UNDERPASSES...IS ALSO LIKELY. DO NOT DRIVE YOUR VEHICLE ON A FLOODED
ROADWAY.

&&

LAT...LON 3275 8514 3275 8526 3290 8543 3309 8530
      3304 8521 3286 8518 3285 8515 3281 8516
      3278 8512
TIME...MOT...LOC 0014Z 306DEG 8KT 3296 8527

$$

MA

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 2, 8:47 AM CDTAreal Flood AdvisoryBMXGreene, Hale, Marengo, Perry, Sumter3 hr
Aug 2, 9:58 AM CDTFlash Flood WarningBMXSumter3 hr
Aug 2, 11:06 AM CDTSpecial Weather StatementBMXLowndes39 min
Aug 2, 12:58 PM CDTAreal Flood WarningBMXSumter3 hr
Aug 2, 12:58 PM CDTSpecial Weather StatementBMXCoosa47 min
Aug 2, 2:14 PM CDTAreal Flood AdvisoryBMXBullock, Macon, Montgomery3 hr
Aug 2, 3:19 PM CDTSpecial Weather StatementBMXRussell41 min
Aug 2, 3:26 PM CDTSpecial Weather StatementBMXMarion49 min
Aug 2, 3:31 PM CDTAreal Flood AdvisoryBMXMarion, Winston3 hr
Aug 2, 3:48 PM CDTSevere Thunderstorm WarningBMXMarion42 min
Aug 2, 4:30 PM CDTSpecial Weather StatementBMXLamar45 min
Aug 2, 4:42 PM CDTFlash Flood WarningBMXMarion, Winston80 min

Nearby

Special Weather Statements in Alabama, 2012Every 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.