Alert archive / Alabama / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 470, NWS Birmingham, AL

August 7, 2008Chambers County, Lee County, Russell County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Aug 7, 2008, 5:51 PM CDT for Chambers County, Lee County, Russell County, Alabama. It was in force for 24 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Aug 7, 2008, 5:51 PM CDT (22:51 UTC)
Expired: Aug 7, 2008, 6:15 PM CDT
In force: 24 min
Issued by: NWS Birmingham, AL
Area: Storm-based polygon

Counties Chambers County, AL, Lee County, AL, Russell County, AL

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 10.9 hours before the alert went out and 114 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: 1137 J/kg
Mixed-layer CIN: -80 J/kg
Mixed-layer LCL: 1340 m above ground
0-6 km bulk shear: 17 kt
0-1 km storm-relative helicity: -41 m²/s²
0-3 km storm-relative helicity: -10 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning 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 severe thunderstorm warning went out at Aug 7, 3:41 PM CDT, 2 hours 10 minutes earlier.

Area forecast discussion, Aug 7, 3:41 PM CDT, 2 hours 10 minutes before

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Hazardous weather outlook, Aug 7, 1:45 PM CDT, 4 hours 6 minutes before

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In the hours before

Special weather statement, Aug 7, 4:32 PM CDT, 1 hour 19 minutes before

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Local storm report, Aug 7, 4:36 PM CDT, 1 hour 15 minutes before

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Local storm report, Aug 7, 4:39 PM CDT, 1 hour 12 minutes before

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Local storm report, Aug 7, 4:42 PM CDT, 1 hour 9 minutes before

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Local storm report, Aug 7, 5:39 PM CDT, 12 minutes before

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Special weather statement, Aug 7, 5:44 PM CDT, 7 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
Aug 7, 12:37 PM CDT	Severe Thunderstorm Warning	BMX	Lamar, Pickens	53 min
Aug 7, 1:21 PM CDT	Severe Thunderstorm Warning	BMX	Fayette, Lamar, Marion	54 min
Aug 7, 1:48 PM CDT	Severe Thunderstorm Warning	BMX	Marion, Walker, Winston	35 min
Aug 7, 3:24 PM CDT	Severe Thunderstorm Warning	BMX	Talladega	35 min
Aug 7, 3:53 PM CDT	Areal Flood Advisory	BMX	Fayette, Lamar, Marion	3 hr

Nearby

Severe Thunderstorm Warnings in Alabama, 2008 Every severe thunderstorm warning in 2008

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.