Alert archive / Texas / Special Weather Statements in 2023

Special Weather Statement, NWS Amarillo, TX

August 13, 2023Dallam County, Texas

NWS Amarillo, TX issued this special weather statement at Aug 13, 2023, 3:21 PM CDT for Dallam County, Texas. It was in force for 39 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Aug 13, 2023, 3:21 PM CDT (20:21 UTC)
Expired: Aug 13, 2023, 4:00 PM CDT
In force: 39 min
Issued by: NWS Amarillo, TX
Hail: 0.75 in
Wind: 55

County Dallam County, TX

The radar

The Amarillo radar (KAMA), 140 km from the middle of the area, began a volume at 20:24 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 12:00Z, 8.4 hours before the alert went out and 265 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: 41 J/kg
Mixed-layer CIN: -250 J/kg
Mixed-layer LCL: 1295 m above ground
0-6 km bulk shear: 14 kt
0-1 km storm-relative helicity: 66 m²/s²
0-3 km storm-relative helicity: 2 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.0

Open this sounding in Storm Lab

The text

As transmitted.

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The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 12, 7:29 PM CDT	Special Weather Statement	AMA	Gray	46 min
Aug 12, 8:45 PM CDT	Special Weather Statement	AMA	Hemphill	30 min
Aug 13, 3:28 PM CDT	Special Weather Statement	AMA	Donley	47 min
Aug 13, 3:48 PM CDT	Special Weather Statement	AMA	Potter	42 min
Aug 13, 3:54 PM CDT	Severe Thunderstorm Warning	AMA	Dallam, Hansford, Sherman	78 min
Aug 13, 4:08 PM CDT	Special Weather Statement	AMA	Donley, Wheeler	52 min
Aug 13, 4:17 PM CDT	Special Weather Statement	AMA	Hutchinson	28 min
Aug 13, 4:31 PM CDT	Severe Thunderstorm Warning	AMA	Collingsworth, Donley, Gray, Hemphill, Wheeler	89 min
Aug 13, 4:41 PM CDT	Special Weather Statement	AMA	Potter	34 min
Aug 13, 4:48 PM CDT	Special Weather Statement	AMA	Ochiltree	42 min
Aug 13, 4:55 PM CDT	Severe Thunderstorm Warning	AMA	Hemphill, Lipscomb, Ochiltree, Roberts	95 min
Aug 13, 5:10 PM CDT	Special Weather Statement	AMA	Hutchinson	35 min
Aug 13, 5:19 PM CDT	Severe Thunderstorm Warning	AMA	Carson, Hansford, Hutchinson, Moore, Ochiltree, Potter and 1 more	86 min
Aug 13, 6:03 PM CDT	Severe Thunderstorm Warning	AMA	Hemphill, Lipscomb, Roberts, Wheeler	87 min
Aug 13, 6:38 PM CDT	Severe Thunderstorm Warning	AMA	Hartley, Oldham	85 min
Aug 13, 6:48 PM CDT	Special Weather Statement	AMA	Gray, Wheeler	42 min

Nearby

Special Weather Statements in Texas, 2023 Every special weather statement 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.