Alert archive / Alabama / Special Weather Statements in 2012

Special Weather Statement, NWS Birmingham, AL

April 5, 2012Dallas County, Alabama

NWS Birmingham, AL issued this special weather statement at Apr 5, 2012, 6:09 PM CDT for Dallas County, Alabama. It was in force for 51 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: Apr 5, 2012, 6:09 PM CDT (23:09 UTC)
Expired: Apr 5, 2012, 7:00 PM CDT
In force: 51 min
Issued by: NWS Birmingham, AL

County Dallas County, AL

The radar

The Birmingham radar (KBMX), 108 km from the middle of the area, began a volume at 23:10 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 12:00Z, 11.2 hours before the alert went out and 108 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: 315 J/kg
Mixed-layer CIN: -31 J/kg
Mixed-layer LCL: 754 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: -91 m²/s²
0-3 km storm-relative helicity: -43 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -1.5

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 Apr 5, 1:00 PM CDT, 5 hours 9 minutes earlier.

Area forecast discussion, Apr 5, 1:00 PM CDT, 5 hours 9 minutes before

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE BIRMINGHAM AL
100 PM CDT THU APR 5 2012

.UPDATE...
FOR AVIATION AND FORECAST UPDATE.

&&

.DISCUSSION...

UPDATING FORECAST TO REMOVE A FEW MORE WARNINGS FROM
WATCH...BIBB...PERRY AND MARENGO. OUT SHORTLY.

&&

.AVIATION...
18Z TAF DISCUSSION.

MAIN UPDATES FOR THIS PACKAGE WILL BE CONTINUED TIMING WITH LINE
OF TSRA THAT IS MOVING ACROSS I65 CORRIDOR EASTWARD AS WE SPEAK.
SOUTHERN PARTS OF THE LINE/IE...MGM/TOI COULD SEE SMALL HAIL IF
STORM HOLD TOGETHER THIS AFTERNOON...BUT THIS LINE HAS DECREASED
SOME IN OVERALL INTENSITY AS IT HAS MOVED EWD. SOME GUSTY WINDS
ARE POSSIBLE BUT HAIL HAS BEEN THE MAIN STORY TODAY WITH STORMS.
THERE IS STILL THE POSSIBILITY OF A SECOND ROUND OF STRONG STORMS
WITH THE PASSAGE OF THE UPPER LOW LATE THIS AFTERNOON INTO THIS
EVENING...BUT AT THIS TIME THE PROBABILITY AT ONE SITE IS LOW SO
WILL NOT ADD INTO TAFS AT THIS TIME BUT IT WOULD MOSTLY LIKELY
AFFECT NORTHERN TAFS IF ANY AS THEY WILL BE CLOSER TO THE LOW.

08/MNK

&&

.PREV DISCUSSION... /ISSUED 1227 PM CDT THU APR 5 2012/

DISCUSSION...

MCS/SQUALL LINE CONTINUES TO MOVE ACROSS CENTRAL ALABAMA AND
SHOULD BE NEAR THE GEORGIA STATE LINE BETWEEN 3 TO 4 PM. SURFACE
HEATING AHEAD OF THE LINE SHOULD ALLOW IT STORMS TO CONTINUE TO BE
STRONG TO SEVERE AT TIMES. REMOVED SEVERAL COUNTIES FROM THE
WESTERN PART OF THE WATCH AS THE THREAT FOR THE NEXT FEW HOURS HAS
ENDED. ADDED COUNTIES IN THE EAST AS THE LINE IS EXPECTED TO
MAINTAIN INTENSITY ACROSS THE STATE.

ADDITIONAL DEVELOPMENT IS CURRENTLY TAKING PLACE NEAR THE UPPER
LOW IN NORTHWEST MISSISSIPPI ALONG THE COLD FRONT. MID LEVEL DRY
SLOT AND CLEARING IS WORKING IN TO THE WESTERN PART OF ALABAMA AND
WILL ALLOW FOR SURFACE HEATING IN THE WAKE OF THE MCS. EXPECT
ISOLATED STRONG TO SEVERE THUNDERSTORMS TO AFFECT THE NORTHWEST
PART OF THE AREA LATE THIS AFTERNOON AND SPREAD SOUTHEASTWARD
ACROSS THE FORECAST AREA IN ASSOCIATION WITH THE COLD CORE UPPER
LOW. HAIL WILL BE THE PRIMARY THREAT WITH THESE STORMS AS 500 MB
TEMPS OF -17 TO -19 C MOVE OVER THE NORTHERN HALF OF THE STATE.
THESE STORMS MAY LAST UNTIL A FEW HOURS AFTER SUNSET BEFORE
WEAKENING.

DID NOT UPDATE MUCH OF THE FORECAST BEYOND THE TONIGHT PERIOD DUE
TO ONGOING WEATHER. A GLANCE AT THE 12Z GFS SHOWS NO MAJOR CHANGES
ARE NECESSARY FOR THE EXTENDED AS COOLER AND DRIER NORTHWEST FLOW
CONTINUES INTO NEXT WEEK.

GRANTHAM/87

&&

.PRELIMINARY POINT TEMPS/POPS...
GADSDEN     50  71  46  74  48 /  40  10   0   0   0
ANNISTON    52  72  47  74  49 /  40  10   0   0   0
BIRMINGHAM  49  73  49  74  51 /  40  10   0   0   0
TUSCALOOSA  51  74  49  76  50 /  30   0   0   0   0
CALERA      50  71  51  75  51 /  40  10   0   0   0
AUBURN      55  71  48  73  47 /  40  10   0   0   0
MONTGOMERY  54  76  51  76  50 /  30  10   0   0   0
TROY        55  75  50  74  48 /  30  10   0   0   0

&&

.BMX WATCHES/WARNINGS/ADVISORIES...
NONE.

&&

08/87

Hazardous weather outlook, Apr 5, 4:08 PM CDT, 2 hours 1 minute before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BIRMINGHAM AL
408 PM CDT THU APR 5 2012

ALZ011>015-017>050-062100-
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-
408 PM CDT THU APR 5 2012

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

.DAY ONE...THIS AFTERNOON AND TONIGHT.

SEVERE STORMS WILL BE POSSIBLE THROUGH MIDNIGHT TONIGHT FOR ALL OF
CENTRAL ALABAMA. THE MAIN THREATS WILL BE LARGE HAIL...ALONG WITH A
SECONDARY THREAT OF DAMAGING WINDS AND LOCALLY HEAVY RAINFALL. THE
THREAT OF TORNADOES CONTINUES TO BE MINIMAL. THE SEVERE WEATHER
THREAT SHOULD COME TO AN END FOR ALL OF CENTRAL ALABAMA BY MIDNIGHT.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

ACTIVATION OF STORM SPOTTERS AND EMERGENCY MANAGEMENT MAY BE
NECESSARY THROUGH MIDNIGHT.

08/MNK

In the hours before

Local storm report, Apr 5, 5:47 PM CDT, 22 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
547 PM CDT THU APR 05 2012

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0546 PM     HAIL             CORDOVA                 33.76N 87.19W
04/05/2012  E1.75 INCH       WALKER             AL   PUBLIC

            GOLF BALL SIZE HAIL IN CORDOVA.

&&

GRANTHAM

Local storm report, Apr 5, 5:48 PM CDT, 21 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
548 PM CDT THU APR 05 2012

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0537 PM     HAIL             POPLAR SPRINGS          34.03N 87.39W
04/05/2012  E1.00 INCH       WINSTON            AL   PUBLIC

            QUARTER SIZE HAIL IN POPLAR SPRINGS.

&&

GRANTHAM

Local storm report, Apr 5, 5:55 PM CDT, 14 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
555 PM CDT THU APR 05 2012

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0549 PM     HAIL             1 E CORDOVA             33.76N 87.17W
04/05/2012  E1.50 INCH       WALKER             AL   TRAINED SPOTTER

            PING PONG BALL SIZE HAIL REPORTED JUST EAST OF CORDOVA.

&&

GRANTHAM

Special weather statement, Apr 5, 5:59 PM CDT, 10 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
559 PM CDT THU APR 5 2012

ALZ024-052345-
JEFFERSON AL-
559 PM CDT THU APR 5 2012

...SIGNIFICANT WEATHER ADVISORY FOR JEFFERSON COUNTY UNTIL 645 PM
CDT...

AT 556 PM CDT...THE NATIONAL WEATHER SERVICE WAS TRACKING STRONG
THUNDERSTORMS ALONG A LINE EXTENDING FROM BURNWELL TO BULL CITY...AND
MOVING EAST AT 30 MPH.

HAIL UP TO THE SIZE OF PENNIES AND WIND GUSTS UP TO 40 MPH ARE
EXPECTED WITH THESE STORMS.

LOCATIONS IN OR NEAR THE PATH OF THESE STORMS INCLUDE...
  HUEYTOWN...
  GARDENDALE...
  FAIRFIELD...
  FULTONDALE...
  BESSEMER...

&&

LAT...LON 3368 8652 3358 8655 3347 8664 3347 8667
      3337 8678 3329 8693 3336 8722 3342 8725
      3347 8734 3349 8733 3348 8729 3353 8727
      3352 8725 3355 8719 3359 8720 3362 8717
      3363 8710 3366 8709 3366 8706 3379 8700
TIME...MOT...LOC 2300Z 285DEG 26KT 3371 8705 3346 8725

GRANTHAM

Local storm report, Apr 5, 6:08 PM CDT, 1 minute before

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE BIRMINGHAM AL
608 PM CDT THU APR 05 2012

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1005 AM     HAIL             PANOLA                  32.95N 88.27W
04/05/2012  E1.50 INCH       SUMTER             AL   PUBLIC

            PING PONG BALL SIZED HAIL REPORTED IN PANOLA.

1012 AM     TSTM WND DMG     2 E TOMBIGBEE RIVER AT  32.85N 88.12W
04/05/2012                   GREENE             AL   EMERGENCY MNGR

            TREE REPORTED DOWN ON ALABAMA HIGHWAY 39 ABOUT 2 MILES
            NORTHEAST OF GAINESVILLE.

1058 AM     HAIL             HAVANA                  32.90N 87.62W
04/05/2012  E1.75 INCH       HALE               AL   EMERGENCY MNGR

            GOLF BALL SIZED HAIL REPORTED IN HAVANA.

1137 AM     TSTM WND DMG     4 NNE UNIONTOWN         32.50N 87.47W
04/05/2012                   PERRY              AL   DEPT OF HIGHWAYS

            SEVERAL TREES REPORTED DOWN BY PERRY COUNTY HIGHWAY DEPT.
            NEAR THE INTERSECTION OF BUSTER SEALY ROAD AND HIGHWAY
            183

1140 AM     TSTM WND GST     E JEMISON               32.96N 86.75W
04/05/2012  E50.00 MPH       CHILTON            AL   AMATEUR RADIO

            I-65 EXIT 219, TREE LIMBS DOWN.

1205 PM     TSTM WND DMG     4 WSW SELMA             32.39N 87.09W
04/05/2012                   DALLAS             AL   EMERGENCY MNGR

            TREE REPORTED DOWN NEAR SELMA AND PEA SIZED HAIL REPORTED
            BY COUNTY DEPUTIES

0428 PM     HAIL             PINE SPRINGS            33.94N 88.15W
04/05/2012  E1.00 INCH       LAMAR              AL   EMERGENCY MNGR

            QUARTER SIZE HAIL IN THE PINE SPRINGS COMMUNITY.

0440 PM     TSTM WND DMG     VERNON                  33.76N 88.11W
04/05/2012                   LAMAR              AL   EMERGENCY MNGR

            TWO TREES DOWN IN VERNON.

0443 PM     HAIL             6 N HAMILTON            34.23N 87.98W
04/05/2012  E1.50 INCH       MARION             AL   PUBLIC

            PING PONG BALL SIZE HAIL 6 MILES NORTH OF HAMILTON.

0454 PM     TSTM WND DMG     GUIN                    33.97N 87.91W
04/05/2012                   MARION             AL   TRAINED SPOTTER

            TREE AND POWER LINES DOWN ON A HOUSE ON 3RD AVENUE IN
            GUIN.

0531 PM     HAIL             5 E JASPER              33.87N 87.18W
04/05/2012  E1.00 INCH       WALKER             AL   PUBLIC

            PICTURE SENT IN WITH HAIL COVERING THE GROUND EAST OF
            JASPER.

0537 PM     HAIL             POPLAR SPRINGS          34.03N 87.39W
04/05/2012  E1.00 INCH       WINSTON            AL   PUBLIC

            QUARTER SIZE HAIL IN POPLAR SPRINGS.

0546 PM     HAIL             CORDOVA                 33.76N 87.19W
04/05/2012  E1.75 INCH       WALKER             AL   PUBLIC

            GOLF BALL SIZE HAIL IN CORDOVA.

0549 PM     HAIL             1 E CORDOVA             33.76N 87.17W
04/05/2012  E1.50 INCH       WALKER             AL   TRAINED SPOTTER

            PING PONG BALL SIZE HAIL REPORTED JUST EAST OF CORDOVA.

&&

GRANTHAM

Special weather statement, Apr 5, 6:09 PM CDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
609 PM CDT THU APR 5 2012

ALZ040-060000-
DALLAS AL-
609 PM CDT THU APR 5 2012

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHERN DALLAS COUNTY UNTIL 700
PM CDT...

AT 605 PM CDT...THE NATIONAL WEATHER SERVICE WAS TRACKING A STRONG
THUNDERSTORM NEAR FIVE POINTS...OR 14 MILES NORTH OF CAMDEN...MOVING
EAST AT 35 MPH.

HAIL UP TO THE SIZE OF PENNIES AND WIND GUSTS UP TO 40 MPH ARE
EXPECTED WITH THIS STORM.

LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...
  OLD CAHABA PARK...
  DALLAS LAKE...
  BELKNAP...
  TYLER...
  WHITES BLUFF...

&&

LAT...LON 3212 8726 3214 8726 3215 8729 3225 8733
      3241 8685 3236 8681 3232 8685 3230 8683
      3228 8686 3226 8686 3223 8681 3223 8690
      3216 8691 3209 8722
TIME...MOT...LOC 2310Z 252DEG 30KT 3219 8719

GRANTHAM

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 5, 9:41 AM CDT	Severe Thunderstorm Warning	BMX	Greene, Pickens, Sumter	64 min
Apr 5, 10:26 AM CDT	Severe Thunderstorm Warning	BMX	Greene, Hale, Tuscaloosa	64 min
Apr 5, 11:07 AM CDT	Severe Thunderstorm Warning	BMX	Bibb, Perry	53 min
Apr 5, 11:27 AM CDT	Special Weather Statement	BMX	Marengo	48 min
Apr 5, 11:44 AM CDT	Severe Thunderstorm Warning	BMX	Dallas, Marengo	46 min
Apr 5, 12:03 PM CDT	Special Weather Statement	BMX	Chilton, Shelby	57 min
Apr 5, 12:21 PM CDT	Special Weather Statement	BMX	Autauga, Lowndes	54 min
Apr 5, 12:28 PM CDT	Special Weather Statement	BMX	Dallas	32 min
Apr 5, 12:49 PM CDT	Special Weather Statement	BMX	Coosa, Elmore	56 min
Apr 5, 12:56 PM CDT	Special Weather Statement	BMX	Montgomery	64 min
Apr 5, 3:56 PM CDT	Special Weather Statement	BMX	Marion	49 min
Apr 5, 4:17 PM CDT	Severe Thunderstorm Warning	BMX	Lamar	28 min
Apr 5, 4:41 PM CDT	Severe Thunderstorm Warning	BMX	Fayette, Lamar, Marion	49 min
Apr 5, 4:52 PM CDT	Special Weather Statement	BMX	Pickens	38 min
Apr 5, 5:09 PM CDT	Severe Thunderstorm Warning	BMX	Marion, Walker, Winston	66 min
Apr 5, 5:24 PM CDT	Special Weather Statement	BMX	Hale	51 min
Apr 5, 5:36 PM CDT	Special Weather Statement	BMX	Tuscaloosa	39 min
Apr 5, 5:38 PM CDT	Severe Thunderstorm Warning	BMX	Walker	52 min
Apr 5, 5:59 PM CDT	Special Weather Statement	BMX	Jefferson	46 min
Apr 5, 6:06 PM CDT	Severe Thunderstorm Warning	BMX	Jefferson	39 min
Apr 5, 6:14 PM CDT	Special Weather Statement	BMX	Blount	46 min
Apr 5, 6:18 PM CDT	Special Weather Statement	BMX	Chilton	42 min
Apr 5, 6:25 PM CDT	Special Weather Statement	BMX	Bibb	65 min
Apr 5, 6:27 PM CDT	Severe Thunderstorm Warning	BMX	Autauga, Dallas, Lowndes	48 min
Apr 5, 6:28 PM CDT	Special Weather Statement	BMX	Shelby	47 min
Apr 5, 6:33 PM CDT	Severe Thunderstorm Warning	BMX	Bibb, Chilton, Shelby	42 min
Apr 5, 6:37 PM CDT	Severe Thunderstorm Warning	BMX	Autauga, Chilton, Dallas, Elmore, Perry	53 min
Apr 5, 6:43 PM CDT	Severe Thunderstorm Warning	BMX	Jefferson, St. Clair, Shelby	47 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; radar from the NEXRAD Level II archive.