Alert archive / Alabama / Special Weather Statements in 2012

Special Weather Statement, NWS Birmingham, AL

May 30, 2012Russell County, Alabama

NWS Birmingham, AL issued this special weather statement at May 30, 2012, 1:00 AM CDT for Russell County, Alabama. It was in force for 45 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: May 30, 2012, 1:00 AM CDT (06:00 UTC)
Expired: May 30, 2012, 1:45 AM CDT
In force: 45 min
Issued by: NWS Birmingham, AL

County Russell County, AL

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 6.0 hours before the alert went out and 142 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: 341 J/kg
Mixed-layer CIN: -29 J/kg
Mixed-layer LCL: 1320 m above ground
0-6 km bulk shear: 15 kt
0-1 km storm-relative helicity: -17 m²/s²
0-3 km storm-relative helicity: -15 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.

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What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Birmingham, AL wrote its last area forecast discussion before this special weather statement went out at May 30, 12:39 AM CDT, 21 minutes earlier.

Area forecast discussion, May 30, 12:39 AM CDT, 21 minutes before

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Hazardous weather outlook, May 29, 8:49 PM CDT, 4 hours 11 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BIRMINGHAM AL
849 PM CDT TUE MAY 29 2012

ALZ011>015-017>050-310200-
MARION-LAMAR-FAYETTE-WINSTON-WALKER-BLOUNT-ETOWAH-CALHOUN-CHEROKEE-
CLEBURNE-PICKENS-TUSCALOOSA-JEFFERSON-SHELBY-ST. CLAIR-TALLADEGA-
CLAY-RANDOLPH-SUMTER-GREENE-HALE-PERRY-BIBB-CHILTON-COOSA-TALLAPOOSA-
CHAMBERS-MARENGO-DALLAS-AUTAUGA-LOWNDES-ELMORE-MONTGOMERY-MACON-
BULLOCK-LEE-RUSSELL-PIKE-BARBOUR-
849 PM CDT TUE MAY 29 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE COUNTIES SERVED BY THE
NATIONAL WEATHER SERVICE OFFICE IN BIRMINGHAM.

.DAY ONE...TONIGHT.

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

SEVERE THUNDERSTORMS...INCLUDING A RISK OF DAMAGING STRAIGHT
LINE WINDS AND LARGE HAIL...ARE POSSIBLE THURSDAY THROUGH FRIDAY
ACROSS ALL OF CENTRAL ALABAMA.  CONFIDENCE REMAINS LOW GIVEN THE
UNCERTAINTY OF TIMING AND STRENGTH OF THE APPROACHING STORM SYSTEM.

.SPOTTER INFORMATION STATEMENT...

ACTIVATION OF STORM SPOTTERS AND EMERGENCY MANAGEMENT MAY BECOME
NECESSARY THURSDAY OR FRIDAY.

In the hours before

Special weather statement, May 29, 11:33 PM CDT, 1 hour 27 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
1133 PM CDT TUE MAY 29 2012

ALZ027-034>036-300515-
BIBB AL-CHILTON AL-COOSA AL-TALLADEGA AL-
1133 PM CDT TUE MAY 29 2012

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN TALLADEGA...WESTERN
COOSA...CHILTON AND BIBB COUNTIES UNTIL 1215 AM CDT...

AT 1133 PM CDT...THE NATIONAL WEATHER SERVICE WAS TRACKING STRONG
THUNDERSTORMS ALONG A LINE EXTENDING FROM EOLINE TO CHILDERSBURG...
AND MOVING SOUTH AT 45 MPH.

WIND GUSTS UP TO 40 MPH ARE EXPECTED WITH THESE STORMS.

LOCATIONS IN OR NEAR THE PATH OF THESE STORMS INCLUDE...
  SYLACAUGA...
  CENTREVILLE...
  TALLADEGA SPRINGS...
  BRENT...
  JEMISON...

&&

LAT...LON 3308 8730 3316 8697 3310 8697 3306 8691
      3307 8662 3302 8652 3309 8651 3312 8646
      3318 8651 3320 8646 3329 8643 3334 8620
      3275 8631 3275 8641 3271 8641 3271 8671
      3266 8672 3266 8701 3284 8702 3284 8732
TIME...MOT...LOC 0433Z 009DEG 38KT 3301 8721 3322 8632

GRANTHAM

Local storm report, May 30, 12:06 AM CDT, 54 minutes before

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Special weather statement, May 30, 12:06 AM CDT, 54 minutes before

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Special weather statement, May 30, 12:07 AM CDT, 53 minutes before

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Special weather statement, May 30, 12:53 AM CDT, 7 minutes before

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Special weather statement, May 30, 1:00 AM CDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
May 29, 7:28 PM CDT	Special Weather Statement	BMX	Coosa	32 min
May 29, 7:58 PM CDT	Special Weather Statement	BMX	Coosa	32 min
May 29, 8:29 PM CDT	Special Weather Statement	BMX	Blount	31 min
May 29, 9:02 PM CDT	Special Weather Statement	BMX	Blount	28 min
May 29, 9:22 PM CDT	Special Weather Statement	BMX	Blount, Calhoun, Cherokee, Etowah, St. Clair	38 min
May 29, 9:25 PM CDT	Special Weather Statement	BMX	Winston	50 min
May 29, 9:35 PM CDT	Special Weather Statement	BMX	Walker	40 min
May 29, 9:52 PM CDT	Special Weather Statement	BMX	Talladega	38 min
May 29, 9:59 PM CDT	Special Weather Statement	BMX	Calhoun, Cherokee, Cleburne, Etowah, St. Clair	46 min
May 29, 10:03 PM CDT	Special Weather Statement	BMX	Jefferson	42 min
May 29, 10:12 PM CDT	Special Weather Statement	BMX	Walker	48 min
May 29, 10:29 PM CDT	Special Weather Statement	BMX	Tuscaloosa	46 min
May 29, 10:42 PM CDT	Special Weather Statement	BMX	Calhoun, Clay, Cleburne, Coosa, Jefferson, Randolph and 2 more	48 min
May 29, 11:11 PM CDT	Severe Thunderstorm Warning	BMX	Shelby	49 min
May 29, 11:33 PM CDT	Special Weather Statement	BMX	Bibb, Chilton	42 min
May 29, 11:58 PM CDT	Severe Thunderstorm Warning	BMX	Bibb, Chilton	32 min
May 30, 12:06 AM CDT	Special Weather Statement	BMX	Autauga, Dallas	39 min
May 30, 12:07 AM CDT	Special Weather Statement	BMX	Chambers	53 min
May 30, 12:53 AM CDT	Special Weather Statement	BMX	Lowndes, Montgomery	52 min
May 30, 5:19 PM CDT	Special Weather Statement	BMX	Sumter	26 min
May 30, 5:26 PM CDT	Severe Thunderstorm Warning	BMX	Sumter	34 min
May 30, 6:15 PM CDT	Special Weather Statement	BMX	Marengo	30 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.