Alert archive / Alabama / Special Weather Statements in 2011

Special Weather Statement, NWS Birmingham, AL

June 15, 2011St. Clair County, Alabama

NWS Birmingham, AL issued this special weather statement at Jun 15, 2011, 10:44 PM CDT for St. Clair County, Alabama. It was in force for 46 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: Jun 15, 2011, 10:44 PM CDT (03:44 UTC)
Expired: Jun 15, 2011, 11:30 PM CDT
In force: 46 min
Issued by: NWS Birmingham, AL

County St. Clair County, AL

The radar

The Birmingham radar (KBMX), 62 km from the middle of the area, began a volume at 03:45 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

Birmingham, AL (KBMX), launched 00:00Z, 3.7 hours before the alert went out and 62 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: 2907 J/kg
Mixed-layer CIN: 0 J/kg
Mixed-layer LCL: 1785 m above ground
0-6 km bulk shear: 28 kt
0-1 km storm-relative helicity: 52 m²/s²
0-3 km storm-relative helicity: 124 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.9

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 Jun 15, 10:39 PM CDT, 5 minutes earlier.

Area forecast discussion, Jun 15, 10:39 PM CDT, 5 minutes before

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Hazardous weather outlook, Jun 15, 7:15 PM CDT, 3 hours 29 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BIRMINGHAM AL
715 PM CDT WED JUN 15 2011

ALZ011>015-017>050-170016-
AUTAUGA-BARBOUR-BIBB-BLOUNT-BULLOCK-CALHOUN-CHAMBERS-CHEROKEE-
CHILTON-CLAY-CLEBURNE-COOSA-DALLAS-ELMORE-ETOWAH-FAYETTE-GREENE-HALE-
JEFFERSON-LAMAR-LEE-LOWNDES-MACON-MARENGO-MARION-MONTGOMERY-PERRY-
PICKENS-PIKE-RANDOLPH-RUSSELL-SHELBY-ST CLAIR-SUMTER-TALLADEGA-
TALLAPOOSA-TUSCALOOSA-WALKER-WINSTON-
715 PM CDT WED JUN 15 2011

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

.DAY ONE...TONIGHT.

STRONG TO SEVERE STORMS ARE POSSIBLE THROUGH 10 PM FOR AREAS
GENERALLY NORTH OF A LINE FROM ALICEVILLE TO TUSCALOOSA T0 ALABASTER
TO WEDOWEE. THESE STORMS WILL BE CAPABLE OF PRODUCING WIND GUSTS 50
TO 70 MPH...LARGE HAIL...AND DEADLY CLOUD TO GROUND LIGHTNING.

MUCH LESSER CONFIDENCE EXIST SOUTH AS DRIER AIR AND LESSER LIFT ARE
IN PLACE. BUT IF STORMS CAN DEVELOP SOUTH...THERE IS SOME POTENTIAL
FOR THESE STORMS TO BECOME MARGINALLY SEVERE...WITH GUSTY WINDS AND
HAIL. ANY STORMS THAT DEVELOP ARE EXPECTED TO SLOWLY LOSE INTENSITY
BY AROUND 10 PM.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

ACTIVATION OF STORM SPOTTERS AND EMERGENCY MANAGEMENT MAY BECOME
NECESSARY FOR PARTS OF CENTRAL ALABAMA THIS EVENING.

In the hours before

Special weather statement, Jun 15, 8:40 PM CDT, 2 hours 4 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
840 PM CDT WED JUN 15 2011

ALZ019>021-160230-
CALHOUN AL-CHEROKEE AL-CLEBURNE AL-
840 PM CDT WED JUN 15 2011

...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN CLEBURNE...SOUTHEASTERN
CHEROKEE AND NORTHEASTERN CALHOUN COUNTIES UNTIL 930 PM CDT...

AT 838 PM CDT...THE NATIONAL WEATHER SERVICE WAS TRACKING A STRONG
THUNDERSTORM NEAR PIEDMONT...MOVING NORTHEAST AT 20 MPH.

HAIL UP TO ONE-HALF INCH IN DIAMETER 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...
  PIEDMONT...
  LIBERTY HILL...
  SPRING GARDEN...
  OAK LEVEL...
  BORDEN SPRINGS...

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.

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 3377 8569 3392 8576 3409 8542 3405 8541
      3385 8537
TIME...MOT...LOC 0140Z 245DEG 17KT 3389 8564

56

Special weather statement, Jun 15, 9:38 PM CDT, 1 hour 6 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
938 PM CDT WED JUN 15 2011

ALZ018-020-160315-
CHEROKEE AL-ETOWAH AL-
938 PM CDT WED JUN 15 2011

...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN ETOWAH AND CHEROKEE
COUNTIES UNTIL 1015 PM CDT...

AT 936 PM CDT...THE NATIONAL WEATHER SERVICE WAS TRACKING STRONG
THUNDERSTORMS ALONG A LINE EXTENDING FROM MENTONE TO BOAZ...AND
MOVING EAST AT 30 MPH.

WIND GUSTS UP TO 40 MPH ARE EXPECTED WITH THESE STORMS...ALONG WITH
HEAVY RAIN AND FREQUENT DANGEROUS LIGHTNING.

LOCATIONS IN OR NEAR THE PATH OF THESE STORMS INCLUDE...
  CEDAR BLUFF...
  CENTRE...
  SARDIS CITY...
  CLOUDLAND...
  TABOR ROAD...

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 3452 8550 3411 8542 3406 8543 3410 8630
      3419 8619 3419 8612 3421 8610 3421 8585
      3425 8584 3424 8582 3426 8580 3426 8578
      3438 8563 3443 8559 3449 8558 3453 8551
TIME...MOT...LOC 0238Z 272DEG 26KT 3460 8553 3423 8615

Special weather statement, Jun 15, 10:09 PM CDT, 35 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
1009 PM CDT WED JUN 15 2011

ALZ024>027-160345-
JEFFERSON AL-SHELBY AL-ST. CLAIR AL-TALLADEGA AL-
1009 PM CDT WED JUN 15 2011

...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN TALLADEGA...NORTHEASTERN
SHELBY...SOUTHERN ST. CLAIR AND EASTERN JEFFERSON COUNTIES UNTIL 1045
PM CDT...

AT 1006 PM CDT...THE NATIONAL WEATHER SERVICE WAS TRACKING STRONG
THUNDERSTORMS ALONG A LINE EXTENDING FROM RIVERSIDE TO LEEDS...AND
MOVING SOUTHEAST AT 20 MPH.

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

LOCATIONS IN OR NEAR THE PATH OF THESE STORMS INCLUDE...
  PELL CITY...
  RIVERSIDE...
  VANDIVER...
  LINCOLN...
  TALLADEGA SUPERSPEEDWAY...

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 3371 8612 3372 8614 3370 8615 3368 8614
      3368 8607 3364 8603 3360 8602 3359 8597
      3336 8654 3352 8676 3375 8617
TIME...MOT...LOC 0309Z 299DEG 19KT 3364 8622 3353 8654

Special weather statement, Jun 15, 10:13 PM CDT, 31 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
1013 PM CDT WED JUN 15 2011

ALZ018>021-160345-
CALHOUN AL-CHEROKEE AL-CLEBURNE AL-ETOWAH AL-
1013 PM CDT WED JUN 15 2011

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN ETOWAH...CLEBURNE...
SOUTHERN CHEROKEE AND CALHOUN COUNTIES UNTIL 1045 PM CDT...

AT 1112 PM EDT/1012 PM CDT/...THE NATIONAL WEATHER SERVICE WAS
TRACKING STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM ROME TO
STEELE...AND MOVING SOUTHEAST AT 35 MPH.

WIND GUSTS UP TO 45 MPH ARE EXPECTED WITH THESE STORMS...ALONG WITH
HEAVY RAIN AND FREQUENT DANGEROUS LIGHTNING.

LOCATIONS IN OR NEAR THE PATH OF THESE STORMS INCLUDE...
  MARKTON...
  PIEDMONT...
  JACKSONVILLE...
  SAKS...
  FORT MCCLELLAN...

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 3365 8534 3349 8585 3354 8579 3358 8579
      3359 8594 3375 8608 3377 8605 3380 8607
      3386 8606 3387 8610 3391 8611 3390 8614
      3393 8617 3396 8617 3425 8545
TIME...MOT...LOC 0313Z 322DEG 33KT 3422 8525 3387 8617

Local storm report, Jun 15, 10:26 PM CDT, 18 minutes before

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Special weather statement, Jun 15, 10:44 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
Jun 15, 8:13 PM CDT	Special Weather Statement	BMX	Marion, Winston	47 min
Jun 15, 8:34 PM CDT	Special Weather Statement	BMX	Cleburne	26 min
Jun 15, 8:40 PM CDT	Special Weather Statement	BMX	Cherokee	50 min
Jun 15, 8:44 PM CDT	Severe Thunderstorm Warning	BMX	Calhoun, Cherokee, Cleburne	46 min
Jun 15, 9:38 PM CDT	Special Weather Statement	BMX	DeKalb	37 min
Jun 15, 10:09 PM CDT	Special Weather Statement	BMX	St. Clair	36 min
Jun 15, 10:13 PM CDT	Special Weather Statement	BMX	Calhoun, Cherokee, Cleburne	32 min
Jun 15, 10:16 PM CDT	Severe Thunderstorm Warning	BMX	Jefferson, St. Clair, Shelby, Talladega	29 min
Jun 15, 10:50 PM CDT	Special Weather Statement	BMX	Marion	40 min
Jun 15, 10:59 PM CDT	Special Weather Statement	BMX	Chambers	46 min
Jun 15, 11:13 PM CDT	Special Weather Statement	BMX	Russell	47 min
Jun 16, 8:29 AM CDT	Special Weather Statement	BMX	Autauga	46 min
Jun 16, 9:12 AM CDT	Special Weather Statement	BMX	Elmore	48 min
Jun 16, 9:52 AM CDT	Severe Thunderstorm Warning	BMX	Coosa, Elmore	38 min
Jun 16, 10:17 AM CDT	Special Weather Statement	BMX	Elmore	43 min
Jun 16, 10:26 AM CDT	Special Weather Statement	BMX	Lee	49 min
Jun 16, 10:28 AM CDT	Severe Thunderstorm Warning	BMX	Lee, Macon, Tallapoosa	47 min
Jun 16, 11:19 AM CDT	Severe Thunderstorm Warning	BMX	Lee, Russell	41 min
Jun 16, 11:55 AM CDT	Special Weather Statement	BMX	Russell	50 min
Jun 16, 12:10 PM CDT	Special Weather Statement	BMX	Choctaw	35 min
Jun 16, 1:07 PM CDT	Special Weather Statement	BMX	Sumter	38 min
Jun 16, 2:12 PM CDT	Severe Thunderstorm Warning	BMX	Marengo, Sumter	48 min
Jun 16, 5:57 PM CDT	Special Weather Statement	BMX	Barbour	48 min
Jun 16, 6:05 PM CDT	Special Weather Statement	BMX	Pike	40 min

Nearby

Special Weather Statements in Alabama, 2011 Every special weather statement in 2011

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.