Alert archive / Texas / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 251, NWS Lubbock, TX

August 18, 2008Motley County, Texas

NWS Lubbock, TX issued this severe thunderstorm warning at Aug 18, 2008, 7:19 PM CDT for Motley County, Texas. It was in force for 22 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 18, 2008, 7:19 PM CDT (00:19 UTC)
Expired: Aug 18, 2008, 7:41 PM CDT
In force: 22 min
Issued by: NWS Lubbock, TX
Area: Storm-based polygon

County Motley County, TX

The nearest sounding before it

Midland Regional, TX (KMAF), launched 00:00Z, 0.3 hours before the alert went out and 271 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: 362 J/kg
Mixed-layer CIN: -75 J/kg
Mixed-layer LCL: 1402 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 4 m²/s²
0-3 km storm-relative helicity: 63 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.6

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 Lubbock, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 18, 3:39 PM CDT, 3 hours 40 minutes earlier.

Area forecast discussion, Aug 18, 3:39 PM CDT, 3 hours 40 minutes before

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Hazardous weather outlook, Aug 18, 2:56 PM CDT, 4 hours 23 minutes before

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In the hours before

Special weather statement, Aug 18, 4:38 PM CDT, 2 hours 41 minutes before

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Special weather statement, Aug 18, 4:43 PM CDT, 2 hours 36 minutes before

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Special weather statement, Aug 18, 5:46 PM CDT, 1 hour 33 minutes before

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Local storm report, Aug 18, 6:52 PM CDT, 27 minutes before

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The office that day

Everything else NWS Lubbock, TX issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 18, 7:02 PM CDT	Severe Thunderstorm Warning	LUB	Crosby, Dickens	58 min
Aug 18, 11:54 PM CDT	Areal Flood Advisory	LUB	Childress, Cottle, Hall, Motley	3 hr

Nearby

Severe Thunderstorm Warnings in Texas, 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.