Alert archive / Alabama / Special Weather Statements in 2012
Special Weather Statement, NWS Birmingham, AL
NWS Birmingham, AL issued this special weather statement at Jan 21, 2012, 11:47 AM CST for Perry County, Alabama. It was in force for 43 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
- Jan 21, 2012, 11:47 AM CST (17:47 UTC)
- Expired
- Jan 21, 2012, 12:30 PM CST
- In force
- 43 min
- Issued by
- NWS Birmingham, AL
County Perry County, AL
The radar
The Birmingham radar (KBMX), 90 km from the middle of the area, began a volume at 17:51 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, 5.8 hours before the alert went out and 90 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.
- Mixed-layer CAPE
- 1141 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 514 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 198 m²/s²
- 0-3 km storm-relative helicity
- 198 m²/s²
- Significant tornado parameter
- 1.2
- Supercell composite
- 6.1
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>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 Jan 21, 11:39 AM CST, 8 minutes earlier.
Area forecast discussion, Jan 21, 11:39 AM CST, 8 minutes before
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</html>Hazardous weather outlook, Jan 21, 5:47 AM CST, 6 hours before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE BIRMINGHAM AL 547 AM CST SAT JAN 21 2012 ALZ011>015-017>050-221200- 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- 547 AM CST SAT JAN 21 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE COUNTIES SERVED BY THE NATIONAL WEATHER SERVICE OFFICE IN BIRMINGHAM. .DAY ONE...TODAY AND TONIGHT. STRONG TO SEVERE THUNDERSTORMS WILL BE POSSIBLE ALONG AND AHEAD OF A COLD FRONT THAT IS MOVING INTO CENTRAL ALABAMA FROM THE NORTHWEST. THE PRIMARY THREATS WILL BE DAMAGING WINDS AND LARGE HAIL... ALTHOUGH AN ISOLATED TORNADO WILL ALSO BE POSSIBLE THROUGH NOON. DUE TO THE SLOW MOVING NATURE OF THE FRONT...LOCALIZED FLOODING COULD ALSO BECOME AN ISSUE FOR FLOOD PRONE AREAS. BY LATE AFTERNOON THE FRONT SHOULD STALL ACROSS THE I-85 CORRIDOR. THE SEVERE WEATHER THREAT SHOULD DIMINISH BY THIS EVENING. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY. ANOTHER COLD FRONT WILL PUSH THROUGH CENTRAL ALABAMA LATE SUNDAY NIGHT AND MONDAY MORNING. THERE IS A CHANCE OF STRONG TO SEVERE STORMS DEVELOPING ALONG THE FRONT WITH THE MAIN THREAT BEING DAMAGING WINDS. .SPOTTER INFORMATION STATEMENT... ACTIVATION OF STORM SPOTTERS AND EMERGENCY MANAGEMENT WILL BE NECESSARY TODAY... AND MAY BE NEEDED AGAIN SUNDAY NIGHT INTO MONDAY MORNING.
In the hours before
Special weather statement, Jan 21, 8:04 AM CST, 3 hours 43 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
804 AM CST SAT JAN 21 2012
ALZ022-211445-
PICKENS AL-
804 AM CST SAT JAN 21 2012
...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN PICKENS COUNTY UNTIL 845
AM CST...
AT 806 AM CST...THE NATIONAL WEATHER SERVICE WAS TRACKING A STRONG
THUNDERSTORM NEAR ETHELSVILLE...OR 10 MILES NORTHWEST OF REFORM...
MOVING EAST AT 30 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...
REFORM...
GORDO...
MCSHAN...
SHAW...
OWENS...
THIS STORM MAY INTENSIFY....AND A TORNADO WATCH IS IN EFFECT FOR THIS
AREA. 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 3353 8828 3352 8784 3343 8783 3326 8784
3328 8830
TIME...MOT...LOC 1404Z 279DEG 25KT 3344 8819Special weather statement, Jan 21, 8:58 AM CST, 2 hours 49 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BIRMINGHAM AL 858 AM CST SAT JAN 21 2012 ALZ024>027-034-211530- BIBB AL-JEFFERSON AL-SHELBY AL-ST. CLAIR AL-TALLADEGA AL- 858 AM CST SAT JAN 21 2012 ...SIGNIFICANT WEATHER ADVISORY FOR WESTERN TALLADEGA...SHELBY... SOUTHERN ST. CLAIR...SOUTHEASTERN JEFFERSON AND NORTHERN BIBB COUNTIES UNTIL 930 AM CST... AT 854 AM CST...THE NATIONAL WEATHER SERVICE WAS TRACKING STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM MOUNTAIN BROOK TO WEST BLOCTON...AND MOVING EAST AT 40 MPH. WIND GUSTS UP TO 45 MPH ARE POSSIBLE WITH THESE STORMS...ALONG WITH HEAVY RAIN. LOCATIONS IN OR NEAR THE PATH OF THESE STORMS INCLUDE... HELENA... TRUSSVILLE... LEEDS... MONTEVALLO... PELHAM... THESE STORMS MAY INTENSIFY....AND A TORNADO WATCH IS IN EFFECT FOR THIS AREA. 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 3360 8612 3310 8644 3307 8724 3372 8656 TIME...MOT...LOC 1457Z 248DEG 60KT 3352 8669 3316 8703
Special weather statement, Jan 21, 9:28 AM CST, 2 hours 19 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BIRMINGHAM AL 928 AM CST SAT JAN 21 2012 ALZ027>029-036-037-211600- CLAY AL-COOSA AL-RANDOLPH AL-TALLADEGA AL-TALLAPOOSA AL- 928 AM CST SAT JAN 21 2012 ...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN TALLAPOOSA... SOUTHERN TALLADEGA...WESTERN RANDOLPH...NORTHERN COOSA AND CLAY COUNTIES UNTIL 1000 AM CST... AT 924 AM CST...THE NATIONAL WEATHER SERVICE WAS TRACKING STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM WINTERBORO TO FAYETTEVILLE...AND MOVING EAST AT 45 MPH. WIND GUSTS UP TO 45 MPH ARE POSSIBLE WITH THESE STORMS...ALONG WITH HEAVY RAIN. LOCATIONS IN OR NEAR THE PATH OF THESE STORMS INCLUDE... SYLACAUGA... STEWARTVILLE... GOODWATER... ASHLAND... LINEVILLE... THESE STORMS MAY INTENSIFY....AND A TORNADO WATCH IS IN EFFECT FOR THIS AREA. 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 3335 8556 3302 8589 3306 8651 3339 8619 TIME...MOT...LOC 1527Z 273DEG 39KT 3331 8615 3312 8634
Special weather statement, Jan 21, 9:53 AM CST, 1 hour 54 minutes before
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</html>Local storm report, Jan 21, 11:02 AM CST, 45 minutes before
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</html>Special weather statement, Jan 21, 11:47 AM CST, 0 minutes before
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</html>The office that day
Everything else NWS Birmingham, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 21, 4:42 AM CST | Special Weather Statement | BMX | Marion | 48 min |
| Jan 21, 5:08 AM CST | Special Weather Statement | BMX | Cleburne | 52 min |
| Jan 21, 5:18 AM CST | Areal Flood Advisory | BMX | Calhoun, Cleburne, Talladega | 117 min |
| Jan 21, 5:21 AM CST | Special Weather Statement | BMX | Marion, Winston | 39 min |
| Jan 21, 6:03 AM CST | Special Weather Statement | BMX | Fayette, Lamar, Marion, Winston | 42 min |
| Jan 21, 6:47 AM CST | Special Weather Statement | BMX | Fayette, Lamar, Walker, Winston | 43 min |
| Jan 21, 7:26 AM CST | Special Weather Statement | BMX | Fayette, Pickens, Walker | 34 min |
| Jan 21, 8:04 AM CST | Special Weather Statement | BMX | Pickens | 41 min |
| Jan 21, 8:37 AM CST | Areal Flood Advisory | BMX | Bibb, Jefferson, Shelby, Tuscaloosa | 113 min |
| Jan 21, 8:58 AM CST | Special Weather Statement | BMX | Shelby | 32 min |
| Jan 21, 9:28 AM CST | Special Weather Statement | BMX | Clay, Talladega | 32 min |
| Jan 21, 9:53 AM CST | Special Weather Statement | BMX | Tallapoosa | 37 min |
| Jan 21, 10:09 AM CST | Severe Thunderstorm Warning | BMX | Chambers, Clay, Randolph, Tallapoosa | 36 min |
| Jan 21, 10:16 AM CST | Areal Flood Advisory | BMX | Clay, Talladega | 119 min |
| Jan 21, 10:27 AM CST | Areal Flood Advisory | BMX | Randolph | 2 hr |
| Jan 21, 11:17 AM CST | Areal Flood Advisory | BMX | Chambers | 118 min |
| Jan 21, 12:55 PM CST | Severe Thunderstorm Warning | BMX | Lowndes, Montgomery | 50 min |
| Jan 21, 2:23 PM CST | Severe Thunderstorm Warning | BMX | Barbour, Bullock, Russell | 37 min |
Nearby
Special Weather Statements in Alabama, 2012Every 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.