Alert archive / Texas / Wind Chill Watches in 2011

Wind Chill Watch 1, NWS Lubbock, TX

January 30, 201118 counties in Texas

NWS Lubbock, TX issued this wind chill watch at Jan 30, 2011, 3:47 PM CST for 18 counties in Texas. It took effect at Feb 1, 2011, 6:00 PM CST. It was in force for .

The area

The counties it named.

The facts

Issued: Jan 30, 2011, 3:47 PM CST (21:47 UTC)
In effect from: Feb 1, 2011, 6:00 PM CST
Expired: Feb 1, 2011, 3:59 PM CST
In force
Issued by: NWS Lubbock, TX

Counties Bailey County, TX, Briscoe County, TX, Castro County, TX, Childress County, TX, Cochran County, TX, Cottle County, TX, Crosby County, TX, Dickens County, TX, Floyd County, TX, Hale County, TX, Hall County, TX, Hockley County, TX, Lamb County, TX, Lubbock County, TX, Motley County, TX, Parmer County, TX, Swisher County, TX, Yoakum County, TX

The radar

The Lubbock radar (KLBB), 46 km from the middle of the area, began a volume at 21:46 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

Norman, OK (KOUN), launched 12:00Z, 9.8 hours before the alert went out and 412 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: 1220 m above ground
0-6 km bulk shear: 9 kt
0-1 km storm-relative helicity: 123 m²/s²
0-3 km storm-relative helicity: 163 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 watch 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 watch went out at Jan 30, 3:18 PM CST, 29 minutes earlier.

Area forecast discussion, Jan 30, 3:18 PM CST, 29 minutes before

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Hazardous weather outlook, Jan 30, 3:24 PM CST, 23 minutes before

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In the hours before

Special weather statement, Jan 30, 3:45 PM CST, 2 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
Jan 30, 3:47 PM CST	Winter Storm Watch	LUB	Bailey, Briscoe, Castro, Childress, Cochran, Cottle and 18 more	24 hr

Nearby

Wind Chill Watches in Texas, 2011 Every wind chill watch 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.