Alert archive / Alabama / Special Weather Statements in 2012

Special Weather Statement, NWS Birmingham, AL

July 6, 2012Pickens County, Alabama

NWS Birmingham, AL issued this special weather statement at Jul 6, 2012, 4:48 PM CDT for Pickens County, Alabama. It was in force for 42 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 6, 2012, 4:48 PM CDT (21:48 UTC)
Expired: Jul 6, 2012, 5:30 PM CDT
In force: 42 min
Issued by: NWS Birmingham, AL

County Pickens County, AL

The radar

The Columbus AFB radar (KGWX), 67 km from the middle of the area, began a volume at 21:50 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, 9.8 hours before the alert went out and 136 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: 333 J/kg
Mixed-layer CIN: -206 J/kg
Mixed-layer LCL: 1138 m above ground
0-6 km bulk shear: 7 kt
0-1 km storm-relative helicity: 38 m²/s²
0-3 km storm-relative helicity: 68 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 6, 3:29 PM CDT, 1 hour 19 minutes earlier.

Area forecast discussion, Jul 6, 3:29 PM CDT, 1 hour 19 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BIRMINGHAM AL
329 PM CDT FRI JUL 6 2012

.DISCUSSION...

WE WILL BE FLIRTING WITH STRONG/SEVERE THUNDERSTORMS FOR A FEW
HOURS INTO THE EVENING HOURS...BUT DO NOT EXPECT COVERAGE TO BE AS
GREAT AS LAST NIGHT. HIGHEST POPS TONIGHT WILL OBVIOUSLY NEED TO
BE IN THE SOUTH AND WEST PORTIONS...WHERE INSTABILITY IS GREATEST.

WE WILL REMAIN ON THE SOUTH PERIPHERY OF THE ELONGATED UPPER LEVEL
RIDGE TOMORROW. HOWEVER...MODELS CONTINUE TO COME INTO BETTER
AGREEMENT ON THE EVOLUTION OF A DEVELOPING UPPER LEVEL TROUGH IN
THE SOUTHEASTERN STATES LATE IN THE WEEKEND INTO NEXT WEEK. THIS
TROUGH...AND ASSOCIATED COLD/STATIONARY FRONT...WOULD BRING TEMPS
DOWN TO NORMAL LEVELS...AND COULD BRING SEVERAL DAYS OF
SIGNIFICANT (AND NEEDED) RAINFALL. THE ONLY THING KEEPING ME FROM
GOING WITH LIKELY POPS AT SOME POINT NEXT WEEK IS THAT THE LONG
RANGE MODELS STILL DIFFER ON WHEN THE AXIS OF BEST MOISTURE
(ASSOCIATED WITH THE FRONT) MOVE THROUGH CENTRAL ALABAMA.

/61/

&&

.AVIATION...
18Z TAF DISCUSSION.

EXPECTING ALTHOUGH MAYBE NOT AS MUCH SOME LATE AFTERNOON AND EARLY
EVENING THUNDERSTORM ACTIVITY TO BE POSSIBLE. EXACT LOCALES ARE
DIFFICULT TO PINPOINT AT THIS TIME BUT THINKING THAT ACTIVITY
DEVELOPMENT WILL START OUT W/S AND WORK ITS WAY NE TO OTHER TAF
AREAS WITH OUTFLOWS/REDEVELOPMENT/ETC DUE TO SOME LINGERING
BOUNDARIES AND HEATING. SO WILL KEEP VCTS BUT STAIR STEP BEGIN TIMES
A TAD FROM S/W TO N/E.

08/MNK

&&

.PRELIMINARY POINT TEMPS/POPS...
GADSDEN     73  94  73  94  72 /  10  20  10  10  20
ANNISTON    73  93  73  93  72 /  10  20  20  10  20
BIRMINGHAM  75  94  74  93  73 /  20  30  20  20  30
TUSCALOOSA  75  96  74  93  73 /  30  30  20  30  40
CALERA      75  93  74  93  73 /  20  30  20  20  30
AUBURN      75  93  74  94  74 /  20  30  20  10  10
MONTGOMERY  75  94  74  94  74 /  20  30  20  10  20
TROY        73  93  72  92  72 /  20  30  20  10  10

&&

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

&&

Hazardous weather outlook, Jul 6, 12:05 PM CDT, 4 hours 43 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BIRMINGHAM AL
1205 PM CDT FRI JUL 6 2012

ALZ011>015-017>050-071715-
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-
1205 PM CDT FRI JUL 6 2012

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

.DAY ONE...THIS AFTERNOON AND TONIGHT.

ISOLATED SEVERE THUNDERSTORMS WILL BE POSSIBLE FOR ALL OF CENTRAL
ALABAMA FROM 2 PM UNTIL 9 PM. THE MAIN THREAT FROM THESE STORMS
WILL BE DAMAGING STRAIGHT LINE WINDS AND HAIL.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

ACTIVATION OF STORM SPOTTERS AND EMERGENCY MANAGEMENT MAY BE
NEEDED THIS AFTERNOON.

In the hours before

Special weather statement, Jul 6, 4:22 PM CDT, 26 minutes before

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Special weather statement, Jul 6, 4:22 PM CDT, 26 minutes before

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Special weather statement, Jul 6, 4:27 PM CDT, 21 minutes before

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Special weather statement, Jul 6, 4:32 PM CDT, 16 minutes before

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Local storm report, Jul 6, 4:44 PM CDT, 4 minutes before

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Special weather statement, Jul 6, 4:48 PM CDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 5, 7:14 PM CDT	Special Weather Statement	BMX	Shelby	46 min
Jul 5, 7:15 PM CDT	Severe Thunderstorm Warning	BMX	Autauga, Bibb, Chilton	45 min
Jul 5, 7:27 PM CDT	Severe Thunderstorm Warning	BMX	Shelby, Talladega	22 min
Jul 5, 7:48 PM CDT	Special Weather Statement	BMX	Cherokee	42 min
Jul 5, 7:51 PM CDT	Special Weather Statement	BMX	Shelby	39 min
Jul 5, 8:01 PM CDT	Severe Thunderstorm Warning	BMX	Shelby	29 min
Jul 5, 8:04 PM CDT	Severe Thunderstorm Warning	BMX	Autauga, Chilton	41 min
Jul 5, 8:11 PM CDT	Special Weather Statement	BMX	Cherokee, Cleburne	34 min
Jul 5, 8:22 PM CDT	Severe Thunderstorm Warning	BMX	Cherokee	23 min
Jul 5, 8:35 PM CDT	Special Weather Statement	BMX	Chilton, Coosa	40 min
Jul 5, 8:40 PM CDT	Special Weather Statement	BMX	Autauga, Dallas	50 min
Jul 5, 8:47 PM CDT	Special Weather Statement	BMX	Calhoun, Cleburne, Etowah	28 min
Jul 5, 8:54 PM CDT	Severe Thunderstorm Warning	BMX	Calhoun, Cherokee, Etowah	51 min
Jul 5, 9:07 PM CDT	Severe Thunderstorm Warning	BMX	Blount, Etowah, St. Clair	38 min
Jul 5, 9:32 PM CDT	Severe Thunderstorm Warning	BMX	Blount, St. Clair	28 min
Jul 5, 9:35 PM CDT	Special Weather Statement	BMX	Dallas, Marengo	40 min
Jul 5, 9:36 PM CDT	Severe Thunderstorm Warning	BMX	Montgomery	39 min
Jul 5, 9:52 PM CDT	Special Weather Statement	BMX	St. Clair, Talladega	38 min
Jul 5, 9:58 PM CDT	Special Weather Statement	BMX	Winston	47 min
Jul 5, 10:01 PM CDT	Severe Thunderstorm Warning	BMX	Jefferson, St. Clair	29 min
Jul 5, 10:06 PM CDT	Severe Thunderstorm Warning	BMX	Marion, Winston	39 min
Jul 5, 10:10 PM CDT	Special Weather Statement	BMX	Tuscaloosa	50 min
Jul 5, 10:17 PM CDT	Special Weather Statement	BMX	Montgomery	43 min
Jul 5, 10:23 PM CDT	Special Weather Statement	BMX	Marengo	52 min
Jul 5, 10:44 PM CDT	Severe Thunderstorm Warning	BMX	Marion, Winston	61 min
Jul 5, 11:11 PM CDT	Special Weather Statement	BMX	Walker	34 min
Jul 5, 11:15 PM CDT	Severe Thunderstorm Warning	BMX	Fayette, Lamar	60 min
Jul 5, 11:32 PM CDT	Special Weather Statement	BMX	Russell	43 min
Jul 6, 12:14 AM CDT	Severe Thunderstorm Warning	BMX	Lamar, Pickens	46 min
Jul 6, 12:17 AM CDT	Special Weather Statement	BMX	Barbour, Russell	43 min
Jul 6, 12:30 AM CDT	Severe Thunderstorm Warning	BMX	Barbour	45 min
Jul 6, 1:01 AM CDT	Special Weather Statement	BMX	Barbour, Russell	44 min
Jul 6, 1:44 AM CDT	Special Weather Statement	BMX	Barbour	46 min
Jul 6, 3:02 PM CDT	Severe Thunderstorm Warning	BMX	Marion	28 min
Jul 6, 3:29 PM CDT	Special Weather Statement	BMX	Marion	46 min
Jul 6, 3:35 PM CDT	Special Weather Statement	BMX	Bibb	40 min
Jul 6, 3:37 PM CDT	Severe Thunderstorm Warning	BMX	Marion	38 min
Jul 6, 3:47 PM CDT	Special Weather Statement	BMX	Greene	43 min
Jul 6, 3:53 PM CDT	Special Weather Statement	BMX	Lamar	52 min
Jul 6, 3:58 PM CDT	Special Weather Statement	BMX	Pickens	47 min
Jul 6, 4:17 PM CDT	Severe Thunderstorm Warning	BMX	Lamar	43 min
Jul 6, 4:22 PM CDT	Special Weather Statement	BMX	Winston	38 min
Jul 6, 4:27 PM CDT	Special Weather Statement	BMX	Fayette	48 min
Jul 6, 4:32 PM CDT	Special Weather Statement	BMX	Greene	43 min
Jul 6, 5:00 PM CDT	Special Weather Statement	BMX	Lamar	45 min
Jul 6, 5:28 PM CDT	Special Weather Statement	BMX	Pickens	47 min
Jul 6, 5:38 PM CDT	Special Weather Statement	BMX	Greene, Hale	52 min
Jul 6, 6:27 PM CDT	Special Weather Statement	BMX	Pickens	48 min
Jul 6, 6:39 PM CDT	Special Weather Statement	BMX	Tuscaloosa	51 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.