Alert archive / Alabama / Special Weather Statements in 2013

Special Weather Statement, NWS Birmingham, AL

March 31, 2013Barbour County, Alabama

NWS Birmingham, AL issued this special weather statement at Mar 31, 2013, 6:52 PM CDT for Barbour County, Alabama. It was in force for 53 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: Mar 31, 2013, 6:52 PM CDT (23:52 UTC)
Expired: Mar 31, 2013, 7:45 PM CDT
In force: 53 min
Issued by: NWS Birmingham, AL

County Barbour County, AL

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 11.9 hours before the alert went out and 193 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: 29 J/kg
Mixed-layer CIN: -9 J/kg
Mixed-layer LCL: 562 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 212 m²/s²
0-3 km storm-relative helicity: 211 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

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 Mar 31, 6:25 PM CDT, 27 minutes earlier.

Area forecast discussion, Mar 31, 6:25 PM CDT, 27 minutes before

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Hazardous weather outlook, Mar 31, 1:43 PM CDT, 5 hours 9 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BIRMINGHAM AL
143 PM CDT SUN MAR 31 2013

ALZ011>015-017>050-011845-
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-
143 PM CDT SUN MAR 31 2013

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

.DAY ONE...THIS AFTERNOON AND TONIGHT.

PATCHY FOG WILL DEVELOP ACROSS CENTRAL ALABAMA AFTER MIDNIGHT.
SOME OF THIS FOG WILL REDUCE VISIBILITIES TO 1 MILE OR LESS AT
TIMES. ADDITIONALLY...LOW CLOUDS MAY OBSCURE HIGHER HILL TOPS
ACROSS THE AREA. THESE CONDITIONS WILL IMPROVE AT DAY BREAK.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

ACTIVATION OF STORM SPOTTERS AND EMERGENCY MANAGEMENT IS NOT
EXPECTED AT THIS TIME.

In the hours before

Special weather statement, Mar 31, 4:13 PM CDT, 2 hours 39 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
413 PM CDT SUN MAR 31 2013

ALZ046-049-050-312145-
BARBOUR AL-BULLOCK AL-PIKE AL-
413 PM CDT SUN MAR 31 2013

...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL PIKE...WESTERN BARBOUR
AND SOUTHERN BULLOCK COUNTIES UNTIL 445 PM CDT...

AT 414 PM CDT...THE NATIONAL WEATHER SERVICE WAS TRACKING A STRONG
THUNDERSTORM NEAR TROY UNIVERSITY...OR NEAR TROY...MOVING EAST AT 25
MPH.

HAIL UP TO ONE-HALF INCH IN DIAMETER AND WIND GUSTS UP TO 40 MPH ARE
EXPECTED WITH THIS STORM.

LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...
  BANKS...
  LINWOOD...
  BOOT HILL...
  PICKETT...
  MONTICELLO...

THIS STORM MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO AND
TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS... FOR ADDITIONAL
INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE.

&&

LAT...LON 3203 8559 3182 8551 3172 8597 3189 8603
TIME...MOT...LOC 2114Z 252DEG 24KT 3183 8589

75

Local storm report, Mar 31, 4:47 PM CDT, 2 hours 5 minutes before

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Special weather statement, Mar 31, 4:55 PM CDT, 1 hour 57 minutes before

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Special weather statement, Mar 31, 5:08 PM CDT, 1 hour 44 minutes before

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Special weather statement, Mar 31, 5:41 PM CDT, 1 hour 11 minutes before

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Special weather statement, Mar 31, 6:52 PM 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
Mar 31, 3:39 PM CDT	Special Weather Statement	BMX	Dallas	36 min
Mar 31, 4:12 PM CDT	Special Weather Statement	BMX	Montgomery	33 min
Mar 31, 4:12 PM CDT	Severe Thunderstorm Warning	BMX	Dallas	33 min
Mar 31, 4:13 PM CDT	Special Weather Statement	BMX	Pike	32 min
Mar 31, 4:27 PM CDT	Severe Thunderstorm Warning	BMX	Lowndes	48 min
Mar 31, 4:55 PM CDT	Special Weather Statement	BMX	Bullock, Pike	50 min
Mar 31, 5:08 PM CDT	Special Weather Statement	BMX	Montgomery	52 min
Mar 31, 5:41 PM CDT	Special Weather Statement	BMX	Barbour, Bullock, Montgomery	49 min

Nearby

Special Weather Statements in Alabama, 2013 Every special weather statement in 2013

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.