Alert archive / Alabama / Special Weather Statements in 2011

Special Weather Statement, NWS Birmingham, AL

June 17, 2011Jefferson County, Alabama

NWS Birmingham, AL issued this special weather statement at Jun 17, 2011, 1:13 AM CDT for Jefferson County, Alabama. It was in force for 47 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 17, 2011, 1:13 AM CDT (06:13 UTC)
Expired: Jun 17, 2011, 2:00 AM CDT
In force: 47 min
Issued by: NWS Birmingham, AL

County Jefferson County, AL

The radar

The Birmingham radar (KBMX), 54 km from the middle of the area, began a volume at 06:17 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, 6.2 hours before the alert went out and 52 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: 2415 J/kg
Mixed-layer CIN: -2 J/kg
Mixed-layer LCL: 1807 m above ground
0-6 km bulk shear: 15 kt
0-1 km storm-relative helicity: 8 m²/s²
0-3 km storm-relative helicity: -18 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.

145 
WWUS84 KBMX 170613
SPSBMX

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
113 AM CDT FRI JUN 17 2011

ALZ015-024-170700-
JEFFERSON AL-WALKER AL-
113 AM CDT FRI JUN 17 2011

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN WALKER AND CENTRAL
JEFFERSON COUNTIES UNTIL 200 AM CDT...

AT 113 AM CDT...THE NATIONAL WEATHER SERVICE WAS TRACKING A STRONG
THUNDERSTORM NEAR GORGAS STEAM PLANT...OR 9 MILES SOUTHWEST OF
DORA...MOVING EAST AT 15 MPH.

HAIL UP TO THE SIZE OF PENNIES AND WIND GUSTS UP TO 50 MPH ARE
EXPECTED WITH THIS STORM.

LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...
  DORA...
  BURNWELL...
  WEST JEFFERSON...
  QUINTON...
  SYLVAN SPRINGS...


&&

LAT...LON 3348 8692 3351 8726 3352 8730 3371 8722
      3377 8685
TIME...MOT...LOC 0613Z 266DEG 13KT 3363 8717

$$

19

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 16, 11:57 PM CDT, 1 hour 16 minutes earlier.

Area forecast discussion, Jun 16, 11:57 PM CDT, 1 hour 16 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BIRMINGHAM AL
1157 PM CDT THU JUN 16 2011

.UPDATE...FOR 06Z AVIATION.

&&

.DISCUSSION...

QUICK UPDATE TO MAKE SOME ADJUSTMENTS TO POPS FOR TONIGHT WITH
STORMS ALONG BOUNDARY MOVING RETROGRADING FURTHER INTO THE CWA.
ALSO MORE ACTIVITY DEVELOPING ACROSS THE NORTH ASSOCIATED WITH
UPPER LEVEL DISTURBANCE.

&&

.AVIATION...06Z TAF DISCUSSION.

LINGERING BOUNDARIES AND APPROACHING SHORTWAVE WILL ALLOW FOR A
FEW THUNDERSTORMS TO REMAIN POSSIBLE OVERNIGHT. SEVERAL LOCATIONS
GOT SOME BRIEF HEAVY RAINFALL AND A PERIOD OF PATCH BR WILL BE
POSSIBLE BEFORE SUNRISE. WEAKENING CONVECTIVE CLUSTER OVER
MISSISSIPPI IS NOT EXPECTED TO MAKE IT INTO CENTRAL ALABAMA
INTACT...ALTHOUGH IT WILL GENERATE ADDITIONAL OUTFLOW THAT COULD
LEAD TO THUNDERSTORM DEVELOPMENT DURING THE DAY TOMORROW. WILL USE
CB IN THE TAFS FOR NOW DURING AFTERNOON HOURS. WINDS GENERALLY
FROM THE SOUTH TO SOUTHWEST.

NOTICE...KEET TAF WILL HAVE (AMD LTD TO VIS WIND AND WX) AMENDED TO
THE END OF THE FORECAST UNTIL FURTHER NOTICE. THE CEILOMETER DATA
WILL BE GOING THROUGH NUMEROUS TESTS AND MONITORED FOR ACCURACY.

&&

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

&&

08/08/88

Hazardous weather outlook, Jun 16, 9:00 PM CDT, 4 hours 13 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BIRMINGHAM AL
900 PM CDT THU JUN 16 2011

ALZ011>015-017>050-180158-
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-
900 PM CDT THU JUN 16 2011

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

.DAY ONE...TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

A FEW THUNDERSTORMS WILL BE POSSIBLE THROUGH THE OVERNIGHT HOURS...
HOWEVER...THESE THUNDERSTORMS ARE EXPECTED TO REMAIN BELOW SEVERE
LEVELS.

.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 IS NOT
EXPECTED AT THIS TIME.

In the hours before

Local storm report, Jun 16, 7:59 PM CDT, 5 hours 14 minutes before

PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE BIRMINGHAM AL
759 PM CDT THU JUN 16 2011

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

0745 PM     HAIL             4 S HOMEWOOD            33.41N 86.81W
06/16/2011  E0.88 INCH       JEFFERSON          AL   PUBLIC

            NEAR INTERSECTION OF INTERSTATE 65 AND HIGHWAY 31.

&&

AG

Special weather statement, Jun 16, 8:14 PM CDT, 4 hours 59 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
814 PM CDT THU JUN 16 2011

ALZ025-170200-
SHELBY AL-
814 PM CDT THU JUN 16 2011

...SIGNIFICANT WEATHER ADVISORY FOR SHELBY COUNTY UNTIL 900 PM CDT...

AT 813 PM CDT...THE NATIONAL WEATHER SERVICE WAS TRACKING A STRONG
THUNDERSTORM NEAR CHELSEA...MOVING SOUTHEAST AT 10 MPH.

HAIL UP TO THE SIZE OF NICKELS AND WIND GUSTS UP TO 50 MPH ARE
EXPECTED WITH THIS STORM.

LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...
  CHELSEA...
  COLUMBIANA...
  WILSONVILLE...
  WESTOVER...
  BEESWAX AT LAY LAKE...

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 3346 8667 3328 8640 3327 8641 3328 8644
      3326 8642 3324 8645 3324 8646 3322 8647
      3310 8660 3334 8682
TIME...MOT...LOC 0114Z 317DEG 8KT 3333 8667

08

Local storm report, Jun 16, 8:24 PM CDT, 4 hours 49 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
824 PM CDT THU JUN 16 2011

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

0810 PM     HAIL             VESTAVIA HILLS          33.43N 86.79W
06/16/2011  E0.50 INCH       JEFFERSON          AL   AMATEUR RADIO

            AT HAVELIN DR AND GEORGIA AVE.

&&

AG

Special weather statement, Jun 16, 8:59 PM CDT, 4 hours 14 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
859 PM CDT THU JUN 16 2011

ALZ027-035-036-170245-
CHILTON AL-COOSA AL-TALLADEGA AL-
859 PM CDT THU JUN 16 2011

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN TALLADEGA...WESTERN
COOSA AND NORTHEASTERN CHILTON COUNTIES UNTIL 945 PM CDT...

AT 855 PM CDT...THE NATIONAL WEATHER SERVICE WAS TRACKING A STRONG
THUNDERSTORM NEAR STRICKLAND CROSSROADS...OR NEAR TALLADEGA
SPRINGS...MOVING SOUTHEAST AT 35 MPH.

HAIL UP TO THE SIZE OF NICKELS AND WIND GUSTS UP TO 50 MPH ARE
EXPECTED WITH THIS STORM.

LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...
  WEOGUFKA...
  STEWARTVILLE...
  ROCKFORD...
  UNITY...
  HIGGINS FERRY PARK...

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 3287 8615 3276 8653 3299 8670 3307 8662
      3305 8662 3306 8660 3302 8656 3302 8652
      3309 8651 3312 8646 3318 8650 3329 8638
      3333 8620
TIME...MOT...LOC 0159Z 311DEG 31KT 3305 8639

08

Special weather statement, Jun 17, 12:47 AM CDT, 26 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
1247 AM CDT FRI JUN 17 2011

ALZ014-170630-
WINSTON AL-
1247 AM CDT FRI JUN 17 2011

...SIGNIFICANT WEATHER ADVISORY FOR WINSTON COUNTY UNTIL 130 AM
CDT...

AT 1247 AM CDT...THE NATIONAL WEATHER SERVICE WAS TRACKING STRONG
THUNDERSTORMS ALONG A LINE EXTENDING FROM ASHRIDGE TO WINSTON FREE
STATE BARN...AND MOVING EAST AT 25 MPH.

WIND GUSTS UP TO 50 MPH ARE EXPECTED WITH THESE STORMS...ALONG WITH
HEAVY RAIN AND FREQUENT DANGEROUS LIGHTNING.

LOCATIONS IN OR NEAR THE PATH OF THESE STORMS INCLUDE...
  ARLEY...
  WINSTON FREE STATE BARN...
  DOUBLE SPRINGS...
  HOUSTON RECREATIONAL AREA...
  CORINTH REC AREA...

&&

LAT...LON 3431 8748 3431 8732 3430 8731 3430 8711
      3430 8710 3404 8711 3409 8749 3431 8752
      3431 8749
TIME...MOT...LOC 0547Z 270DEG 23KT 3429 8744 3414 8743

19

Special weather statement, Jun 17, 1:13 AM CDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
113 AM CDT FRI JUN 17 2011

ALZ015-024-170700-
JEFFERSON AL-WALKER AL-
113 AM CDT FRI JUN 17 2011

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN WALKER AND CENTRAL
JEFFERSON COUNTIES UNTIL 200 AM CDT...

AT 113 AM CDT...THE NATIONAL WEATHER SERVICE WAS TRACKING A STRONG
THUNDERSTORM NEAR GORGAS STEAM PLANT...OR 9 MILES SOUTHWEST OF
DORA...MOVING EAST AT 15 MPH.

HAIL UP TO THE SIZE OF PENNIES AND WIND GUSTS UP TO 50 MPH ARE
EXPECTED WITH THIS STORM.

LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...
  DORA...
  BURNWELL...
  WEST JEFFERSON...
  QUINTON...
  SYLVAN SPRINGS...

&&

LAT...LON 3348 8692 3351 8726 3352 8730 3371 8722
      3377 8685
TIME...MOT...LOC 0613Z 266DEG 13KT 3363 8717

19

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 16, 7:00 PM CDT	Special Weather Statement	BMX	Bullock, Pike	45 min
Jun 16, 7:31 PM CDT	Special Weather Statement	BMX	Shelby	44 min
Jun 16, 8:14 PM CDT	Special Weather Statement	BMX	Shelby	46 min
Jun 16, 8:59 PM CDT	Special Weather Statement	BMX	Coosa	46 min
Jun 17, 12:47 AM CDT	Special Weather Statement	BMX	Winston	43 min
Jun 17, 8:48 AM CDT	Special Weather Statement	BMX	Lamar, Marion	57 min
Jun 17, 9:40 AM CDT	Special Weather Statement	BMX	Lamar, Marion, Winston	65 min
Jun 17, 10:49 AM CDT	Special Weather Statement	BMX	Walker	26 min
Jun 17, 11:29 AM CDT	Special Weather Statement	BMX	Blount, Jefferson, Tuscaloosa	31 min
Jun 17, 11:44 AM CDT	Severe Thunderstorm Warning	BMX	Jefferson, Shelby	46 min
Jun 17, 12:08 PM CDT	Special Weather Statement	BMX	Bibb, Etowah, St. Clair, Shelby, Talladega	52 min
Jun 17, 12:10 PM CDT	Severe Thunderstorm Warning	BMX	St. Clair	50 min
Jun 17, 12:18 PM CDT	Special Weather Statement	BMX	Marion	57 min
Jun 17, 12:22 PM CDT	Severe Thunderstorm Warning	BMX	Bibb, Chilton, Shelby, Talladega	38 min
Jun 17, 12:23 PM CDT	Special Weather Statement	BMX	Dallas	67 min
Jun 17, 12:28 PM CDT	Areal Flood Advisory	BMX	Jefferson, Shelby	2 hr
Jun 17, 12:32 PM CDT	Special Weather Statement	BMX	Montgomery	43 min
Jun 17, 12:49 PM CDT	Special Weather Statement	BMX	Calhoun	41 min
Jun 17, 12:53 PM CDT	Severe Thunderstorm Warning	BMX	Montgomery	52 min
Jun 17, 12:54 PM CDT	Special Weather Statement	BMX	Autauga, Chilton, Clay, Coosa, Perry, Talladega	51 min
Jun 17, 1:00 PM CDT	Severe Thunderstorm Warning	BMX	Coosa	45 min
Jun 17, 1:22 PM CDT	Severe Thunderstorm Warning	BMX	Autauga, Dallas, Lowndes	38 min
Jun 17, 1:32 PM CDT	Special Weather Statement	BMX	Bullock	43 min
Jun 17, 1:35 PM CDT	Special Weather Statement	BMX	Clay, Cleburne, Randolph	40 min
Jun 17, 1:41 PM CDT	Special Weather Statement	BMX	Bullock, Lowndes, Macon, Montgomery	49 min
Jun 17, 1:47 PM CDT	Severe Thunderstorm Warning	BMX	Lowndes, Montgomery	28 min
Jun 17, 1:50 PM CDT	Special Weather Statement	BMX	Chambers, Elmore, Lee, Tallapoosa	55 min
Jun 17, 2:02 PM CDT	Special Weather Statement	BMX	Autauga	28 min
Jun 17, 2:06 PM CDT	Severe Thunderstorm Warning	BMX	Elmore, Macon, Montgomery	39 min
Jun 17, 2:37 PM CDT	Special Weather Statement	BMX	Barbour, Bullock, Macon, Montgomery, Pike, Russell	53 min
Jun 17, 2:53 PM CDT	Special Weather Statement	BMX	Lee	52 min
Jun 17, 3:14 PM CDT	Severe Thunderstorm Warning	BMX	Lee, Russell	21 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.