Alert archive / Texas / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 384, NWS Amarillo, TX

September 15, 2023Deaf Smith County, Randall County, Texas

NWS Amarillo, TX issued this severe thunderstorm warning at Sep 15, 2023, 9:12 PM CDT for Deaf Smith County, Randall County, Texas. It was in force for 48 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 15, 2023, 9:12 PM CDT (02:12 UTC)
Expired: Sep 15, 2023, 10:00 PM CDT
In force: 48 min
Issued by: NWS Amarillo, TX
Area: Storm-based polygon
Damage threat: Considerable
Hail: 2.0 in
Wind: 60.0 mph

Counties Deaf Smith County, TX, Randall County, TX

The radar

The Amarillo radar (KAMA), 58 km from the middle of the area, began a volume at 02:15 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Sep 15, 5:38 PM CDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Midland Regional, TX (KMAF), launched 00:00Z, 2.2 hours before the alert went out and 335 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: 1339 J/kg
Mixed-layer CIN: -30 J/kg
Mixed-layer LCL: 1473 m above ground
0-6 km bulk shear: 41 kt
0-1 km storm-relative helicity: -6 m²/s²
0-3 km storm-relative helicity: 120 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 3.1

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 Sep 15, 6:48 PM CDT, 2 hours 24 minutes earlier.

Area forecast discussion, Sep 15, 6:48 PM CDT, 2 hours 24 minutes before

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Hazardous weather outlook, Sep 15, 5:44 PM CDT, 3 hours 28 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
Sep 15, 7:25 PM CDT	Severe Thunderstorm Warning Considerable damage threat	AMA	Oldham	50 min
Sep 15, 7:52 PM CDT	Special Weather Statement	AMA	Oldham	23 min
Sep 15, 8:04 PM CDT	Severe Thunderstorm Warning	AMA	Deaf Smith, Oldham, Potter	26 min
Sep 15, 8:14 PM CDT	Special Weather Statement	AMA	Oldham	31 min
Sep 15, 8:35 PM CDT	Special Weather Statement	AMA	Deaf Smith	25 min
Sep 15, 8:50 PM CDT	Severe Thunderstorm Warning	AMA	Deaf Smith	40 min
Sep 15, 9:37 PM CDT	Special Weather Statement	AMA	Randall	38 min
Sep 15, 9:53 PM CDT	Severe Thunderstorm Warning Considerable damage threat	AMA	Armstrong, Randall	49 min
Sep 15, 9:55 PM CDT	Severe Thunderstorm Warning Considerable damage threat	AMA	Deaf Smith, Randall	35 min
Sep 15, 10:17 PM CDT	Severe Thunderstorm Warning	AMA	Deaf Smith	37 min

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.