Alert archive / Texas / Special Weather Statements in 2017

Special Weather Statement, NWS Amarillo, TX

July 23, 2017Wheeler County, Texas

NWS Amarillo, TX issued this special weather statement at Jul 23, 2017, 4:29 PM CDT for Wheeler County, Texas. It was in force for 61 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: Jul 23, 2017, 4:29 PM CDT (21:29 UTC)
Expired: Jul 23, 2017, 5:30 PM CDT
In force: 61 min
Issued by: NWS Amarillo, TX

County Wheeler County, TX

The radar

The Amarillo radar (KAMA), 120 km from the middle of the area, began a volume at 21:29 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

Amarillo Airport, TX (KAMA), launched 12:00Z, 9.5 hours before the alert went out and 119 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: 189 J/kg
Mixed-layer CIN: -202 J/kg
Mixed-layer LCL: 1199 m above ground
0-6 km bulk shear: 15 kt
0-1 km storm-relative helicity: 50 m²/s²
0-3 km storm-relative helicity: 67 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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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Jul 23, 4:21 PM CDT, 8 minutes earlier.

Area forecast discussion, Jul 23, 4:21 PM CDT, 8 minutes before

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Hazardous weather outlook, Jul 23, 3:16 PM CDT, 1 hour 13 minutes before

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In the hours before

Special weather statement, Jul 23, 3:39 PM CDT, 50 minutes before

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Special weather statement, Jul 23, 3:49 PM CDT, 40 minutes before

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Special weather statement, Jul 23, 4:29 PM CDT, 0 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 23, 3:39 PM CDT	Special Weather Statement	AMA	Donley	66 min
Jul 23, 3:49 PM CDT	Special Weather Statement	AMA	Ochiltree	56 min
Jul 23, 6:48 PM CDT	Special Weather Statement	AMA	Hutchinson	27 min
Jul 23, 1:01 AM CDT	Areal Flood Advisory	AMA	Cimarron, Texas	3 hr

Nearby

Special Weather Statements in Texas, 2017 Every special weather statement in 2017

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.