Alert archive / Alabama / Special Weather Statements in 2011

Special Weather Statement, NWS Birmingham, AL

June 28, 2011Marengo County, Alabama

NWS Birmingham, AL issued this special weather statement at Jun 28, 2011, 2:52 PM CDT for Marengo County, Alabama. It was in force for 38 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: Jun 28, 2011, 2:52 PM CDT (19:52 UTC)
Expired: Jun 28, 2011, 3:30 PM CDT
In force: 38 min
Issued by: NWS Birmingham, AL

County Marengo County, AL

The radar

The Mobile radar (KMOB), 156 km from the middle of the area, began a volume at 19:53 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, 7.9 hours before the alert went out and 166 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: 2747 J/kg
Mixed-layer CIN: -41 J/kg
Mixed-layer LCL: 769 m above ground
0-6 km bulk shear: 22 kt
0-1 km storm-relative helicity: 43 m²/s²
0-3 km storm-relative helicity: 34 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 Jun 28, 12:40 PM CDT, 2 hours 12 minutes earlier.

Area forecast discussion, Jun 28, 12:40 PM CDT, 2 hours 12 minutes before

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Hazardous weather outlook, Jun 28, 2:24 PM CDT, 28 minutes before

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In the hours before

Local storm report, Jun 28, 1:35 PM CDT, 1 hour 17 minutes before

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Local storm report, Jun 28, 1:47 PM CDT, 1 hour 5 minutes before

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Local storm report, Jun 28, 1:48 PM CDT, 1 hour 4 minutes before

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Local storm report, Jun 28, 2:01 PM CDT, 51 minutes before

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Special weather statement, Jun 28, 2:32 PM CDT, 20 minutes before

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Special weather statement, Jun 28, 2:52 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
Jun 28, 7:50 AM CDT	Special Weather Statement	BMX	Cherokee, Etowah	40 min
Jun 28, 8:59 AM CDT	Special Weather Statement	BMX	Marion, Winston	61 min
Jun 28, 11:21 AM CDT	Areal Flood Advisory	BMX	Marion	3 hr
Jun 28, 11:41 AM CDT	Flash Flood Warning	BMX	Lamar, Marion	3 hr
Jun 28, 11:54 AM CDT	Special Weather Statement	BMX	Lamar	66 min
Jun 28, 12:04 PM CDT	Severe Thunderstorm Warning	BMX	Fayette, Lamar	41 min
Jun 28, 12:07 PM CDT	Flash Flood Warning	BMX	Lamar	2 hr
Jun 28, 12:22 PM CDT	Special Weather Statement	BMX	Elmore	38 min
Jun 28, 12:22 PM CDT	Severe Thunderstorm Warning	BMX	Pickens	53 min
Jun 28, 12:27 PM CDT	Special Weather Statement	BMX	Tuscaloosa	48 min
Jun 28, 12:53 PM CDT	Special Weather Statement	BMX	Greene, Sumter	52 min
Jun 28, 1:01 PM CDT	Severe Thunderstorm Warning	BMX	Greene, Pickens, Tuscaloosa	19 min
Jun 28, 1:05 PM CDT	Special Weather Statement	BMX	Bibb	40 min
Jun 28, 1:18 PM CDT	Special Weather Statement	BMX	Macon	42 min
Jun 28, 2:32 PM CDT	Special Weather Statement	BMX	Bullock	43 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.