Alert archive / Texas / Wind Chill Advisories in 2011

Wind Chill Advisory 6, NWS Lubbock, TX

December 5, 20115 counties in Texas

NWS Lubbock, TX issued this wind chill advisory at Dec 5, 2011, 3:39 PM CST for 5 counties in Texas. It took effect at Dec 5, 2011, 9:00 PM CST. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued: Dec 5, 2011, 3:39 PM CST (21:39 UTC)
In effect from: Dec 5, 2011, 9:00 PM CST
Expired: Dec 6, 2011, 12:08 AM CST
In force: 3 hr
Issued by: NWS Lubbock, TX

Counties Bailey County, TX, Castro County, TX, Lamb County, TX, Parmer County, TX, Swisher County, TX

The radar

The Lubbock radar (KLBB), 94 km from the middle of the area, began a volume at 21:40 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

Amarillo Airport, TX (KAMA), launched 12:00Z, 9.7 hours before the alert went out and 117 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 639 m above ground
0-6 km bulk shear: 67 kt
0-1 km storm-relative helicity: 29 m²/s²
0-3 km storm-relative helicity: 314 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 wind chill advisory 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 wind chill advisory went out at Dec 5, 3:34 PM CST, 5 minutes earlier.

Area forecast discussion, Dec 5, 3:34 PM CST, 5 minutes before

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Hazardous weather outlook, Dec 5, 5:10 AM CST, 10 hours 29 minutes before

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In the hours before

Local storm report, Dec 5, 9:44 AM CST, 5 hours 55 minutes before

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Local storm report, Dec 5, 9:45 AM CST, 5 hours 54 minutes before

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Local storm report, Dec 5, 9:46 AM CST, 5 hours 53 minutes before

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Nearby

Wind Chill Advisories in Texas, 2011 Every wind chill advisory in 2011

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.