Alert archive / Texas / Severe Thunderstorm Warnings in 2010

Severe Thunderstorm Warning 31, NWS Amarillo, TX

May 17, 2010Deaf Smith County, Randall County, Texas

NWS Amarillo, TX issued this severe thunderstorm warning at May 17, 2010, 4:58 AM CDT for Deaf Smith County, Randall County, Texas. It was in force for 62 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: May 17, 2010, 4:58 AM CDT (09:58 UTC)
Expired: May 17, 2010, 6:00 AM CDT
In force: 62 min
Issued by: NWS Amarillo, TX
Area: Storm-based polygon

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 10:00 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, 10.0 hours before the alert went out and 376 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: 157 J/kg
Mixed-layer CIN: -9 J/kg
Mixed-layer LCL: 1626 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 7 m²/s²
0-3 km storm-relative helicity: 71 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

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 May 17, 4:37 AM CDT, 21 minutes earlier.

Area forecast discussion, May 17, 4:37 AM CDT, 21 minutes before

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Hazardous weather outlook, May 17, 2:52 AM CDT, 2 hours 6 minutes before

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In the hours before

Special weather statement, May 17, 1:42 AM CDT, 3 hours 16 minutes before

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Special weather statement, May 17, 2:40 AM CDT, 2 hours 18 minutes before

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Special weather statement, May 17, 3:44 AM CDT, 1 hour 14 minutes before

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Special weather statement, May 17, 4:44 AM CDT, 14 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
May 16, 7:38 PM CDT	Severe Thunderstorm Warning	AMA	Collingsworth	67 min
May 16, 8:19 PM CDT	Severe Thunderstorm Warning	AMA	Armstrong, Donley	37 min

Nearby

Severe Thunderstorm Warnings in Texas, 2010 Every severe thunderstorm warning in 2010

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.