Alert archive / Texas / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 228, NWS Lubbock, TX

September 6, 2007Floyd County, Texas

NWS Lubbock, TX issued this severe thunderstorm warning at Sep 6, 2007, 6:35 PM CDT for Floyd County, Texas. It was in force for 55 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: Sep 6, 2007, 6:35 PM CDT (23:35 UTC)
Expired: Sep 6, 2007, 7:30 PM CDT
In force: 55 min
Issued by: NWS Lubbock, TX
Area: Counties, with a storm outline in the text

County Floyd County, TX

The radar

The Lubbock radar (KLBB), 66 km from the middle of the area, began a volume at 23:34 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

Midland Regional, TX (KMAF), launched 12:00Z, 11.6 hours before the alert went out and 250 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: 1404 J/kg
Mixed-layer CIN: -173 J/kg
Mixed-layer LCL: 1166 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 13 m²/s²
0-3 km storm-relative helicity: 41 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 Sep 6, 6:04 PM CDT, 31 minutes earlier.

Area forecast discussion, Sep 6, 6:04 PM CDT, 31 minutes before

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Hazardous weather outlook, Sep 6, 3:52 PM CDT, 2 hours 43 minutes before

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In the hours before

Special weather statement, Sep 6, 5:12 PM CDT, 1 hour 23 minutes before

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Special weather statement, Sep 6, 5:25 PM CDT, 1 hour 10 minutes before

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Local storm report, Sep 6, 5:31 PM CDT, 1 hour 4 minutes before

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Local storm report, Sep 6, 5:37 PM CDT, 58 minutes before

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Local storm report, Sep 6, 5:42 PM CDT, 53 minutes before

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Special weather statement, Sep 6, 6:09 PM CDT, 26 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
Sep 6, 3:23 PM CDT	Severe Thunderstorm Warning	LUB	Briscoe, Swisher	52 min

Nearby

Severe Thunderstorm Warnings in Texas, 2007 Every severe thunderstorm warning in 2007

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.