Alert archive / Alabama / Severe Thunderstorm Warnings in 2005

Severe Thunderstorm Warning 176, NWS Huntsville, AL

August 16, 2005DeKalb County, Alabama

NWS Huntsville, AL issued this severe thunderstorm warning at Aug 16, 2005, 6:43 PM CDT for DeKalb 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 16, 2005, 6:43 PM CDT (23:43 UTC)
Expired: Aug 16, 2005, 7:07 PM CDT
In force: 24 min
Issued by: NWS Huntsville, AL
Area: Counties, with a storm outline in the text

County DeKalb County, AL

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 11.7 hours before the alert went out and 168 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: 1282 J/kg
Mixed-layer CIN: -69 J/kg
Mixed-layer LCL: 873 m above ground
0-6 km bulk shear: 11 kt
0-1 km storm-relative helicity: 21 m²/s²
0-3 km storm-relative helicity: 36 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 Huntsville, AL wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 16, 3:33 PM CDT, 3 hours 10 minutes earlier.

Area forecast discussion, Aug 16, 3:33 PM CDT, 3 hours 10 minutes before

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Hazardous weather outlook, Aug 16, 11:15 AM CDT, 7 hours 28 minutes before

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In the hours before

Special weather statement, Aug 16, 4:37 PM CDT, 2 hours 6 minutes before

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Special weather statement, Aug 16, 5:26 PM CDT, 1 hour 17 minutes before

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Special weather statement, Aug 16, 5:36 PM CDT, 1 hour 7 minutes before

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Local storm report, Aug 16, 5:59 PM CDT, 44 minutes before

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Special weather statement, Aug 16, 6:01 PM CDT, 42 minutes before

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Special weather statement, Aug 16, 6:15 PM CDT, 28 minutes before

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The office that day

Everything else NWS Huntsville, AL issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 16, 12:47 PM CDT	Severe Thunderstorm Warning	HUN	Limestone	28 min
Aug 16, 3:27 PM CDT	Severe Thunderstorm Warning	HUN	Lawrence	14 min
Aug 16, 4:06 PM CDT	Severe Thunderstorm Warning	HUN	Madison	24 min
Aug 16, 6:20 PM CDT	Severe Thunderstorm Warning	HUN	DeKalb	25 min
Aug 16, 4:52 PM CDT	Severe Thunderstorm Warning	HUN	Franklin	39 min
Aug 16, 6:16 PM CDT	Severe Thunderstorm Warning	HUN	Franklin	24 min

Nearby

Severe Thunderstorm Warnings in Alabama, 2005 Every severe thunderstorm warning in 2005

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.