Alert archive / Alabama / Special Weather Statements in 2012

Special Weather Statement, NWS Birmingham, AL

May 29, 20125 counties in Alabama

NWS Birmingham, AL issued this special weather statement at May 29, 2012, 9:59 PM CDT for 5 counties in 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: May 29, 2012, 9:59 PM CDT (02:59 UTC)
Expired: May 29, 2012, 10:45 PM CDT
In force: 46 min
Issued by: NWS Birmingham, AL

Counties Calhoun County, AL, Cherokee County, AL, Cleburne County, AL, Etowah County, AL, St. Clair County, AL

The radar

The Birmingham radar (KBMX), 85 km from the middle of the area, began a volume at 03:01 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 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 May 29, 9:30 PM CDT, 29 minutes earlier.

Area forecast discussion, May 29, 9:30 PM CDT, 29 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BIRMINGHAM AL
930 PM CDT TUE MAY 29 2012

.UPDATE...
MESOSCALE UPDATE.

&&

.DISCUSSION...

CURRENTLY WATCHING AN OUTFLOW BOUNDARY DROPPING SOUTHWARD OUT OF
NORTHERN ALABAMA. THE STRONGEST WINDS ARE ACTUALLY ALONG THIS
OUTFLOW VERSUS THE STORMS. THERE MAY BE A FEW TREES GO DOWN WITH THE
STRONGER WINDS...BUT WILL BE GENERALLY IN AN ISOLATED NATURE WITH
JUST BELOW SEVERE LIMITS. THE BIGGEST CONCERN WITH ANY STORM IS THE
DOWNDRAFT CAPE AND DRY AIR ALOFT. MOST OF THE ACTIVITY WILL DIMINISH
BY MIDNIGHT. MAIN UPDATE FOR THE EVENING WAS TO THE POPS AND ALREADY
SENT OUT THE FORECAST.

&&

.AVIATION...
00Z TAF DISCUSSION.

NEXT FEW HOURS WE WILL SEE THE SCATTERED ACTIVITY BEGIN TO DWINDLE
ACROSS THE AREA. INCLUDE SO VCTS FOR THE NORTH SITES...MINUS TCL AS
THE ACTIVITY HAS MOVED ACROSS THIS AREA. ACTIVITY WOULD BE BRIEF AND
SHOULD NOT CAUSE ANY MAJOR ISSUES. AFTER SUNSET WE SHOULD SEE MOST
OF THIS CONVECTION DISSIPATE.

LOOKING FURTHER NORTH...A COLD FRONT SITS ACROSS KENTUCKY. A COMPLEX
OF STORMS HAVE DEVELOPED ALONG AND AHEAD OF THE FRONT AND IS SLIDING
EAST SOUTHEAST. EXPECTING THE MCS TO BEGIN TO COLD POOL OUT...IT MAY
SLIDE INTO NORTHEASTERN PORTIONS OF THE AREA. ALOT OF UNCERTAINTIES
WITH IT SO WILL NOT MENTION ANYTHING AT THIS TIME AS IT WOULD NOT
IMPACT ANB UNTIL AFTER THE NEXT SET OF TAFS SO WILL KEEP AN EYE ON
RADAR TO SEE IF ANYTHING NEEDS TO BE ADDED BEFORE THE 06Z.

WHAT THIS MCS DOES REALLY COULD PLAY HAVOC WITH THE REST OF THE
FORECAST AS WELL...BUT WENT WITH THE THINKING THAT ONCE BERYL MOVES
FURTHER EAST WE WILL BE IN A ZONE OF SUBSIDENCE AND RAIN WILL BE
LIMITED. BEST CHANCE TOMORROW FOR SHOWERS AND STORMS WOULD BE MGM
AND TOI...BUT LEFT OUT FOR NOW AS CHANCES ARE LESS THAN 20 PERCENT
AT THIS TIME.

16

&&

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

&&

Hazardous weather outlook, May 29, 8:49 PM CDT, 1 hour 10 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BIRMINGHAM AL
849 PM CDT TUE MAY 29 2012

ALZ011>015-017>050-310200-
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-
849 PM CDT TUE MAY 29 2012

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

.DAY ONE...TONIGHT.

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

SEVERE THUNDERSTORMS...INCLUDING A RISK OF DAMAGING STRAIGHT
LINE WINDS AND LARGE HAIL...ARE POSSIBLE THURSDAY THROUGH FRIDAY
ACROSS ALL OF CENTRAL ALABAMA.  CONFIDENCE REMAINS LOW GIVEN THE
UNCERTAINTY OF TIMING AND STRENGTH OF THE APPROACHING STORM SYSTEM.

.SPOTTER INFORMATION STATEMENT...

ACTIVATION OF STORM SPOTTERS AND EMERGENCY MANAGEMENT MAY BECOME
NECESSARY THURSDAY OR FRIDAY.

In the hours before

Special weather statement, May 29, 9:02 PM CDT, 57 minutes before

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Special weather statement, May 29, 9:22 PM CDT, 37 minutes before

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Special weather statement, May 29, 9:25 PM CDT, 34 minutes before

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Special weather statement, May 29, 9:35 PM CDT, 24 minutes before

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Special weather statement, May 29, 9:52 PM CDT, 7 minutes before

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Special weather statement, May 29, 9:59 PM CDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
959 PM CDT TUE MAY 29 2012

ALZ018>021-026-300345-
CALHOUN AL-CHEROKEE AL-CLEBURNE AL-ETOWAH AL-ST. CLAIR AL-
959 PM CDT TUE MAY 29 2012

...SIGNIFICANT WEATHER ADVISORY FOR ST. CLAIR...ETOWAH...CLEBURNE...
CHEROKEE AND CALHOUN COUNTIES UNTIL 1045 PM CDT...

AT 950 PM CDT...THE NATIONAL WEATHER SERVICE WAS TRACKING STRONG
THUNDERSTORMS ALONG A LINE EXTENDING FROM 5 MILES NORTH OF FORNEY TO
MARGARET...AND MOVING SOUTHEAST AT 30 MPH.

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

LOCATIONS IN OR NEAR THE PATH OF THESE STORMS INCLUDE...
  FORNEY...
  PIEDMONT...
  PELL CITY...
  JACKSONVILLE...
  SAKS...

&&

LAT...LON 3367 8534 3350 8567 3347 8589 3354 8579
      3359 8580 3359 8599 3367 8605 3370 8619
      3358 8622 3354 8619 3349 8626 3352 8627
      3340 8638 3350 8638 3350 8644 3380 8658
      3382 8643 3395 8630 3433 8547
TIME...MOT...LOC 0259Z 332DEG 24KT 3410 8544 3361 8643

GRANTHAM

The office that day

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

Issued	Product	Office	Counties	Lasted
May 29, 7:28 PM CDT	Special Weather Statement	BMX	Coosa	32 min
May 29, 7:58 PM CDT	Special Weather Statement	BMX	Coosa	32 min
May 29, 8:29 PM CDT	Special Weather Statement	BMX	Blount	31 min
May 29, 9:02 PM CDT	Special Weather Statement	BMX	Blount	28 min
May 29, 9:22 PM CDT	Special Weather Statement	BMX	Blount, Calhoun, Cherokee, Etowah, St. Clair	38 min
May 29, 9:25 PM CDT	Special Weather Statement	BMX	Winston	50 min
May 29, 9:35 PM CDT	Special Weather Statement	BMX	Walker	40 min
May 29, 9:52 PM CDT	Special Weather Statement	BMX	Talladega	38 min
May 29, 10:03 PM CDT	Special Weather Statement	BMX	Jefferson	42 min
May 29, 10:12 PM CDT	Special Weather Statement	BMX	Walker	48 min
May 29, 10:29 PM CDT	Special Weather Statement	BMX	Tuscaloosa	46 min
May 29, 10:42 PM CDT	Special Weather Statement	BMX	Calhoun, Clay, Cleburne, Coosa, Jefferson, Randolph and 2 more	48 min
May 29, 11:11 PM CDT	Severe Thunderstorm Warning	BMX	Shelby	49 min
May 29, 11:33 PM CDT	Special Weather Statement	BMX	Bibb, Chilton	42 min
May 29, 11:58 PM CDT	Severe Thunderstorm Warning	BMX	Bibb, Chilton	32 min
May 30, 12:06 AM CDT	Special Weather Statement	BMX	Autauga, Dallas	39 min
May 30, 12:07 AM CDT	Special Weather Statement	BMX	Chambers	53 min
May 30, 12:53 AM CDT	Special Weather Statement	BMX	Lowndes, Montgomery	52 min
May 30, 1:00 AM CDT	Special Weather Statement	BMX	Russell	45 min
May 30, 5:19 PM CDT	Special Weather Statement	BMX	Sumter	26 min
May 30, 5:26 PM CDT	Severe Thunderstorm Warning	BMX	Sumter	34 min
May 30, 6:15 PM CDT	Special Weather Statement	BMX	Marengo	30 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; radar from the NEXRAD Level II archive.