Alert archive / Alabama / Special Weather Statements in 2011

Special Weather Statement, NWS Birmingham, AL

July 10, 2011Barbour County, Alabama

NWS Birmingham, AL issued this special weather statement at Jul 10, 2011, 2:10 PM CDT for Barbour County, Alabama. It was in force for 50 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 10, 2011, 2:10 PM CDT (19:10 UTC)
Expired: Jul 10, 2011, 3:00 PM CDT
In force: 50 min
Issued by: NWS Birmingham, AL

County Barbour County, AL

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 7.2 hours before the alert went out and 195 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: 1762 J/kg
Mixed-layer CIN: -45 J/kg
Mixed-layer LCL: 603 m above ground
0-6 km bulk shear: 6 kt
0-1 km storm-relative helicity: -41 m²/s²
0-3 km storm-relative helicity: -46 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 Jul 10, 12:34 PM CDT, 1 hour 36 minutes earlier.

Area forecast discussion, Jul 10, 12:34 PM CDT, 1 hour 36 minutes before

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Hazardous weather outlook, Jul 10, 1:43 PM CDT, 27 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BIRMINGHAM AL
143 PM CDT SUN JUL 10 2011

ALZ011>015-017>050-111830-
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 JUL 10 2011

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

.DAY ONE...THIS AFTERNOON AND TONIGHT.

TEMPERATURES ARE EXPECTED TO BE WELL ABOVE NORMAL THIS AFTERNOON
RANGING FROM THE MID 90S TO NEAR 100 DEGREES ACROSS ALL OF CENTRAL
ALABAMA. WHEN CONSIDERING THE HIGHER RELATIVE HUMIDITY VALUES...HEAT
INDEX VALUES WILL RANGE BETWEEN 105 AND 110 DEGREES FROM NOON
THROUGH 7 PM.

ISOLATED SEVERE STORMS ARE ALSO POSSIBLE THIS AFTERNOON FROM 1 PM
THROUGH 8 PM...WITH DAMAGING WINDS AS THE MAIN THREAT.

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

HEAT WILL BE WORSENING DURING THE FIRST HALF OF THE WORK WEEK.
TEMPERATURES WILL RANGE IN THE UPPER 90S TO LOWER 100S ACROSS MUCH
OF THE AREA. WHEN FACTORING RELATIVE HUMIDITY...HEAT INDEX VALUES
WILL RANGE BETWEEN 105 AND 110 DEGREES. IF RAIN COVERAGE IS LESS
THAN EXPECTED TUESDAY AND WEDNESDAY...TEMPERATURES AND HEAT INDEX
VALUES COULD BE HIGHER THAN CURRENTLY FORECASTED.

.SPOTTER INFORMATION STATEMENT...

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

In the hours before

Special weather statement, Jul 10, 1:05 PM CDT, 1 hour 5 minutes before

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Special weather statement, Jul 10, 1:12 PM CDT, 58 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
112 PM CDT SUN JUL 10 2011

ALZ041-043-101845-
AUTAUGA AL-ELMORE AL-
112 PM CDT SUN JUL 10 2011

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN AUTAUGA AND
NORTHWESTERN ELMORE COUNTIES UNTIL 145 PM CDT...

AT 107 PM CDT...THE NATIONAL WEATHER SERVICE WAS TRACKING A STRONG
THUNDERSTORM NEAR TITUS...OR 14 MILES NORTH OF MILLBROOK...MOVING
SOUTHEAST AT 10 MPH.

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...
  WEOKA MILLS...
  DEATSVILLE...
  TEN CEDAR ESTATES...
  ELMORE...
  DEXTER...

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 3247 8645 3271 8646 3271 8641 3274 8641
      3275 8639 3275 8634 3277 8633 3264 8612
TIME...MOT...LOC 1811Z 321DEG 8KT 3267 8637

14

Special weather statement, Jul 10, 1:14 PM CDT, 56 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
114 PM CDT SUN JUL 10 2011

ALZ046-048-050-101900-
BARBOUR AL-BULLOCK AL-RUSSELL AL-
114 PM CDT SUN JUL 10 2011

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN RUSSELL...NORTHERN
BARBOUR AND NORTHEASTERN BULLOCK COUNTIES UNTIL 200 PM CDT...

AT 112 PM CDT...THE NATIONAL WEATHER SERVICE WAS TRACKING A STRONG
THUNDERSTORM NEAR HURTSBORO...MOVING SOUTHEAST AT 15 MPH.

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...
  SPRING HILL...
  COMER...
  RUTHERFORD...
  BATESVILLE...

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 3216 8508 3196 8538 3220 8554 3224 8546
      3224 8544 3226 8543 3228 8539
TIME...MOT...LOC 1815Z 316DEG 15KT 3218 8539

14

Special weather statement, Jul 10, 2:02 PM CDT, 8 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
202 PM CDT SUN JUL 10 2011

ALZ025-101945-
SHELBY AL-
202 PM CDT SUN JUL 10 2011

...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL SHELBY COUNTY UNTIL 245
PM CDT...

AT 157 PM CDT...THE NATIONAL WEATHER SERVICE WAS TRACKING A STRONG
THUNDERSTORM NEAR MOUNT LAUREL...OR 6 MILES NORTHEAST OF CHELSEA...
MOVING SOUTHWEST AT 5 MPH.

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...
  CHELSEA...
  MOUNT LAUREL...
  FOWLER LAKE...
  WESTOVER...
  HIGHLAND LAKES...

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 3327 8657 3338 8673 3346 8659 3341 8650
TIME...MOT...LOC 1902Z 033DEG 5KT 3340 8660

14

Special weather statement, Jul 10, 2:10 PM CDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
210 PM CDT SUN JUL 10 2011

ALZ050-102000-
BARBOUR AL-
210 PM CDT SUN JUL 10 2011

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHERN BARBOUR COUNTY UNTIL 300
PM CDT...

AT 208 PM CDT...THE NATIONAL WEATHER SERVICE WAS TRACKING A STRONG
THUNDERSTORM NEAR GAINO...OR 14 MILES NORTHEAST OF CLIO...MOVING
SOUTHEAST AT 20 MPH.

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...
  GAINO...
  TEXASVILLE...
  RICHARDS CROSSROADS...
  BAKER HILL...

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 3189 8556 3192 8537 3178 8513 3177 8513
      3177 8515 3174 8519 3171 8520 3169 8522
      3170 8523 3170 8541 3162 8541 3161 8543
TIME...MOT...LOC 1910Z 317DEG 16KT 3181 8540

14

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 9, 7:34 PM CDT	Areal Flood Advisory	BMX	Walker	116 min
Jul 9, 8:28 PM CDT	Areal Flood Advisory	BMX	Shelby	2 hr
Jul 9, 8:46 PM CDT	Special Weather Statement	BMX	Pickens	44 min
Jul 10, 1:05 PM CDT	Special Weather Statement	BMX	Blount	25 min
Jul 10, 1:12 PM CDT	Special Weather Statement	BMX	Elmore	33 min
Jul 10, 1:14 PM CDT	Special Weather Statement	BMX	Russell	46 min
Jul 10, 2:02 PM CDT	Special Weather Statement	BMX	Shelby	43 min
Jul 10, 3:07 PM CDT	Special Weather Statement	BMX	Montgomery	38 min
Jul 10, 3:51 PM CDT	Special Weather Statement	BMX	Shelby	39 min
Jul 10, 3:55 PM CDT	Heat Advisory	BMX	Autauga, Barbour, Bibb, Blount, Bullock, Calhoun and 33 more	27 hr
Jul 10, 4:26 PM CDT	Special Weather Statement	BMX	Bibb	64 min
Jul 10, 4:33 PM CDT	Special Weather Statement	BMX	Dallas	57 min
Jul 10, 4:39 PM CDT	Special Weather Statement	BMX	Jefferson	51 min
Jul 10, 4:39 PM CDT	Severe Thunderstorm Warning	BMX	Dallas	43 min
Jul 10, 4:51 PM CDT	Severe Thunderstorm Warning	BMX	Autauga, Bibb, Chilton, Dallas, Perry	39 min
Jul 10, 5:49 PM CDT	Areal Flood Advisory	BMX	Tuscaloosa	116 min
Jul 10, 6:15 PM CDT	Special Weather Statement	BMX	Tuscaloosa	45 min
Jul 10, 6:16 PM CDT	Flash Flood Warning	BMX	Tuscaloosa	73 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.