Alert archive / Texas / Winter Storm Warnings in 2020

Winter Storm Warning 1, NWS Lubbock, TX

February 4, 202024 counties in Texas

NWS Lubbock, TX issued this winter storm warning at Feb 4, 2020, 3:07 AM CST for 24 counties in Texas. It took effect at Feb 4, 2020, 12:00 PM CST. It was in force for 30 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Feb 4, 2020, 3:07 AM CST (09:07 UTC)
In effect from: Feb 4, 2020, 12:00 PM CST
Expired: Feb 5, 2020, 6:00 PM CST
In force: 30 hr
Issued by: NWS Lubbock, TX

All 24 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, Garza County, TX, Hale County, TX, Hall County, TX, Hockley County, TX, Kent County, TX, King County, TX, Lamb County, TX, Lubbock County, TX, Lynn County, TX, Motley County, TX, Parmer County, TX, Stonewall County, TX, Swisher County, TX, Terry County, TX, Yoakum County, TX

The radar

The Lubbock radar (KLBB), 33 km from the middle of the area, began a volume at 09:09 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 00:00Z, 9.1 hours before the alert went out and 220 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: 15 J/kg
Mixed-layer CIN: -32 J/kg
Mixed-layer LCL: 2258 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: 31 m²/s²
0-3 km storm-relative helicity: 140 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 winter storm 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 winter storm warning went out at Feb 3, 5:42 PM CST, 9 hours 25 minutes earlier.

Area forecast discussion, Feb 3, 5:42 PM CST, 9 hours 25 minutes before

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Hazardous weather outlook, Feb 3, 3:30 AM CST, 23 hours 37 minutes before

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      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 4, 12:43 AM CST	Special Weather Statement	LUB	Lubbock	32 min
Feb 4, 3:07 AM CST	Winter Weather Advisory	LUB	Bailey, Briscoe, Castro, Hale, Hall, Lamb and 2 more	12 hr

Nearby

Winter Storm Warnings in Texas, 2020 Every winter storm warning in 2020

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.