Alert archive / Alabama / Severe Thunderstorm Warnings in 2010

Severe Thunderstorm Warning 219, NWS Birmingham, AL

June 20, 2010Barbour County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Jun 20, 2010, 9:14 PM CDT for Barbour County, Alabama. It was in force for 31 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: Jun 20, 2010, 9:14 PM CDT (02:14 UTC)
Expired: Jun 20, 2010, 9:45 PM CDT
In force: 31 min
Issued by: NWS Birmingham, AL
Area: Storm-based polygon

County Barbour County, AL

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 2.2 hours before the alert went out and 187 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: 162 J/kg
Mixed-layer CIN: -90 J/kg
Mixed-layer LCL: 2216 m above ground
0-6 km bulk shear: 8 kt
0-1 km storm-relative helicity: 32 m²/s²
0-3 km storm-relative helicity: 8 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 Jun 20, 6:37 PM CDT, 2 hours 37 minutes earlier.

Area forecast discussion, Jun 20, 6:37 PM CDT, 2 hours 37 minutes before

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Hazardous weather outlook, Jun 20, 7:56 PM CDT, 1 hour 18 minutes before

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In the hours before

Special weather statement, Jun 20, 6:49 PM CDT, 2 hours 25 minutes before

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Special weather statement, Jun 20, 8:22 PM CDT, 52 minutes before

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Special weather statement, Jun 20, 9:02 PM CDT, 12 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 21, 2:23 PM CDT	Severe Thunderstorm Warning	BMX	Coosa, Elmore, Tallapoosa	33 min

Nearby

Severe Thunderstorm Warnings in Alabama, 2010 Every severe thunderstorm warning in 2010

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.