Alert archive / Alabama / Special Weather Statements in 2011

Special Weather Statement, NWS Birmingham, AL

July 13, 2011Elmore County, Alabama

NWS Birmingham, AL issued this special weather statement at Jul 13, 2011, 5:19 PM CDT for Elmore County, Alabama. It was in force for 26 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 13, 2011, 5:19 PM CDT (22:19 UTC)
Expired: Jul 13, 2011, 5:45 PM CDT
In force: 26 min
Issued by: NWS Birmingham, AL

County Elmore County, AL

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 10.3 hours before the alert went out and 83 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: 1849 J/kg
Mixed-layer CIN: -57 J/kg
Mixed-layer LCL: 939 m above ground
0-6 km bulk shear: 4 kt
0-1 km storm-relative helicity: -9 m²/s²
0-3 km storm-relative helicity: 2 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 13, 3:13 PM CDT, 2 hours 6 minutes earlier.

Area forecast discussion, Jul 13, 3:13 PM CDT, 2 hours 6 minutes before

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Hazardous weather outlook, Jul 13, 1:21 PM CDT, 3 hours 58 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BIRMINGHAM AL
121 PM CDT WED JUL 13 2011

ALZ011>015-017>050-141822-
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-
121 PM CDT WED JUL 13 2011

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 STORMS ARE POSSIBLE THIS AFTERNOON THROUGH 8 PM...
WITH DAMAGING WINDS AS THE MAIN THREAT.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

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, Jul 13, 3:57 PM CDT, 1 hour 22 minutes before

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Special weather statement, Jul 13, 4:12 PM CDT, 1 hour 7 minutes before

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Special weather statement, Jul 13, 4:15 PM CDT, 1 hour 4 minutes before

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Special weather statement, Jul 13, 4:37 PM CDT, 42 minutes before

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Special weather statement, Jul 13, 5:15 PM CDT, 4 minutes before

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Special weather statement, Jul 13, 5:19 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 12, 7:06 PM CDT	Special Weather Statement	BMX	Bibb	39 min
Jul 12, 7:27 PM CDT	Special Weather Statement	BMX	Hale	33 min
Jul 12, 7:50 PM CDT	Special Weather Statement	BMX	Lowndes	25 min
Jul 13, 1:18 PM CDT	Special Weather Statement	BMX	Tuscaloosa	27 min
Jul 13, 1:50 PM CDT	Special Weather Statement	BMX	Pickens	25 min
Jul 13, 2:25 PM CDT	Special Weather Statement	BMX	Fayette	35 min
Jul 13, 2:30 PM CDT	Special Weather Statement	BMX	Winston	30 min
Jul 13, 2:41 PM CDT	Special Weather Statement	BMX	Tuscaloosa	34 min
Jul 13, 2:45 PM CDT	Special Weather Statement	BMX	Shelby	30 min
Jul 13, 2:56 PM CDT	Special Weather Statement	BMX	St. Clair	34 min
Jul 13, 3:09 PM CDT	Severe Thunderstorm Warning	BMX	Jefferson	36 min
Jul 13, 3:38 PM CDT	Areal Flood Advisory	BMX	Jefferson	112 min
Jul 13, 3:46 PM CDT	Special Weather Statement	BMX	Macon	44 min
Jul 13, 4:12 PM CDT	Special Weather Statement	BMX	Sumter	33 min
Jul 13, 4:15 PM CDT	Special Weather Statement	BMX	Lamar	30 min
Jul 13, 4:37 PM CDT	Special Weather Statement	BMX	Marengo	23 min
Jul 13, 5:15 PM CDT	Special Weather Statement	BMX	Dallas	30 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.