Alert archive / Texas / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 327, NWS Amarillo, TX

July 20, 2023Lipscomb County, Texas

NWS Amarillo, TX issued this severe thunderstorm warning at Jul 20, 2023, 12:35 AM CDT for Lipscomb County, Texas. It was in force for 20 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: Jul 20, 2023, 12:35 AM CDT (05:35 UTC)
Expired: Jul 20, 2023, 12:55 AM CDT
In force: 20 min
Issued by: NWS Amarillo, TX
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Lipscomb County, TX

The radar

The Dodge City radar (KDDC), 167 km from the middle of the area, began a volume at 05:38 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

Dodge City, (KDDC), launched 00:00Z, 5.6 hours before the alert went out and 169 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: 1626 J/kg
Mixed-layer CIN: -215 J/kg
Mixed-layer LCL: 1616 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: -46 m²/s²
0-3 km storm-relative helicity: 169 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -3.0

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 Amarillo, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 20, 12:27 AM CDT, 8 minutes earlier.

Area forecast discussion, Jul 20, 12:27 AM CDT, 8 minutes before

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Hazardous weather outlook, Jul 19, 9:12 PM CDT, 3 hours 23 minutes before

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In the hours before

Special weather statement, Jul 20, 12:31 AM CDT, 4 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 20, 12:31 AM CDT	Special Weather Statement	AMA	Hutchinson
Jul 20, 12:45 AM CDT	Special Weather Statement	AMA	Lipscomb	30 min
Jul 20, 12:42 PM CDT	Flood Watch	AMA	Hansford, Lipscomb, Ochiltree, Sherman	18 hr

Nearby

Severe Thunderstorm Warnings in Texas, 2023 Every severe thunderstorm warning in 2023

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.