Alert archive / Alabama / Special Weather Statements in 2011

Special Weather Statement, NWS Birmingham, AL

July 14, 2011Bibb County, Alabama

NWS Birmingham, AL issued this special weather statement at Jul 14, 2011, 4:02 PM CDT for Bibb 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: Jul 14, 2011, 4:02 PM CDT (21:02 UTC)
Expired: Jul 14, 2011, 4:45 PM CDT
In force: 43 min
Issued by: NWS Birmingham, AL

County Bibb County, AL

The radar

The Birmingham radar (KBMX), 34 km from the middle of the area, began a volume at 21:02 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, 9.0 hours before the alert went out and 33 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: 2065 J/kg
Mixed-layer CIN: -35 J/kg
Mixed-layer LCL: 744 m above ground
0-6 km bulk shear: 5 kt
0-1 km storm-relative helicity: 11 m²/s²
0-3 km storm-relative helicity: 24 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 14, 3:13 PM CDT, 49 minutes earlier.

Area forecast discussion, Jul 14, 3:13 PM CDT, 49 minutes before

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Hazardous weather outlook, Jul 14, 12:00 PM CDT, 4 hours 2 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BIRMINGHAM AL
1200 PM CDT THU JUL 14 2011

ALZ011>015-017>050-151659-
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-
1200 PM CDT THU JUL 14 2011

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

.DAY ONE...THIS AFTERNOON AND TONIGHT.

SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS WILL DEVELOP THIS
AFTERNOON. THE BEST CHANCES FOR ISOLATED STRONG TO SEVERE STORMS
ARE POSSIBLE THROUGH 9 PM. THE STORMS WILL BE CAPABLE OF PRODUCING
LOCALLY HEAVY RAIN AND WIND GUSTS OF 40 TO 60 MPH. HEAVY RAINFALL
MAY ALSO RESULT IN LOCALIZED FLOODING.

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

ISOLATED STRONG TO SEVERE STORMS ARE POSSIBLE AGAIN ON FRIDAY...
MAINLY BETWEEN 2 PM AND 9 PM. THE STORMS WILL BE CAPABLE OF PRODUCING
LOCALLY HEAVY RAIN AND WIND GUSTS OF 40 TO 60 MPH.

.SPOTTER INFORMATION STATEMENT...

ACTIVATION OF STORM SPOTTERS AND EMERGENCY MANAGEMENT IS NOT
EXPECTED AT THIS TIME.

In the hours before

Special weather statement, Jul 14, 3:07 PM CDT, 55 minutes before

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Special weather statement, Jul 14, 3:15 PM CDT, 47 minutes before

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Local storm report, Jul 14, 3:21 PM CDT, 41 minutes before

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Special weather statement, Jul 14, 3:28 PM CDT, 34 minutes before

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Local storm report, Jul 14, 3:55 PM CDT, 7 minutes before

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Special weather statement, Jul 14, 4:02 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 14, 12:21 PM CDT	Special Weather Statement	BMX	Chilton	39 min
Jul 14, 12:22 PM CDT	Special Weather Statement	BMX	Marion	38 min
Jul 14, 12:25 PM CDT	Severe Thunderstorm Warning	BMX	Autauga, Chilton	50 min
Jul 14, 12:54 PM CDT	Severe Thunderstorm Warning	BMX	Lee, Russell	33 min
Jul 14, 1:04 PM CDT	Special Weather Statement	BMX	Coosa, Elmore	41 min
Jul 14, 1:06 PM CDT	Severe Thunderstorm Warning	BMX	Chilton	39 min
Jul 14, 1:18 PM CDT	Severe Thunderstorm Warning	BMX	Autauga, Chilton, Coosa, Elmore	42 min
Jul 14, 1:23 PM CDT	Special Weather Statement	BMX	Bullock	52 min
Jul 14, 1:36 PM CDT	Special Weather Statement	BMX	Winston	39 min
Jul 14, 1:41 PM CDT	Special Weather Statement	BMX	Clay	49 min
Jul 14, 1:50 PM CDT	Special Weather Statement	BMX	Russell	40 min
Jul 14, 1:59 PM CDT	Severe Thunderstorm Warning	BMX	Autauga, Elmore, Montgomery	46 min
Jul 14, 2:04 PM CDT	Special Weather Statement	BMX	Talladega	41 min
Jul 14, 2:09 PM CDT	Special Weather Statement	BMX	Pike	51 min
Jul 14, 2:19 PM CDT	Severe Thunderstorm Warning	BMX	St. Clair, Talladega	41 min
Jul 14, 2:26 PM CDT	Special Weather Statement	BMX	Russell	34 min
Jul 14, 2:36 PM CDT	Severe Thunderstorm Warning	BMX	Montgomery	39 min
Jul 14, 2:38 PM CDT	Special Weather Statement	BMX	Clay	52 min
Jul 14, 2:42 PM CDT	Severe Thunderstorm Warning	BMX	Clay, Talladega	15 min
Jul 14, 2:48 PM CDT	Special Weather Statement	BMX	Pickens	42 min
Jul 14, 2:50 PM CDT	Special Weather Statement	BMX	Lowndes	40 min
Jul 14, 2:59 PM CDT	Special Weather Statement	BMX	Tallapoosa	46 min
Jul 14, 3:07 PM CDT	Special Weather Statement	BMX	Montgomery, Pike	68 min
Jul 14, 3:15 PM CDT	Special Weather Statement	BMX	Chambers	45 min
Jul 14, 3:28 PM CDT	Special Weather Statement	BMX	Lowndes	47 min
Jul 14, 3:36 PM CDT	Areal Flood Advisory	BMX	Jefferson, Shelby	114 min
Jul 14, 5:35 PM CDT	Special Weather Statement	BMX	Marengo	40 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.