Alert archive / Texas / Severe Thunderstorm Warnings in 2009

Severe Thunderstorm Warning 131, NWS Amarillo, TX

June 17, 20095 counties in Texas

NWS Amarillo, TX issued this severe thunderstorm warning at Jun 17, 2009, 3:33 PM CDT for 5 counties in Texas. It was in force for 57 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: Jun 17, 2009, 3:33 PM CDT (20:33 UTC)
Expired: Jun 17, 2009, 4:30 PM CDT
In force: 57 min
Issued by: NWS Amarillo, TX
Area: Storm-based polygon

Counties Deaf Smith County, TX, Moore County, TX, Oldham County, TX, Potter County, TX, Randall County, TX

The radar

The Amarillo radar (KAMA), 44 km from the middle of the area, began a volume at 20:32 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, 8.6 hours before the alert went out and 340 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: 2466 J/kg
Mixed-layer CIN: -316 J/kg
Mixed-layer LCL: 1627 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 202 m²/s²
0-3 km storm-relative helicity: 235 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

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 Jun 17, 12:51 PM CDT, 2 hours 42 minutes earlier.

Area forecast discussion, Jun 17, 12:51 PM CDT, 2 hours 42 minutes before

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Hazardous weather outlook, Jun 17, 1:00 PM CDT, 2 hours 33 minutes before

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In the hours before

Special weather statement, Jun 17, 2:51 PM CDT, 42 minutes before

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Special weather statement, Jun 17, 3:24 PM CDT, 9 minutes before

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Special weather statement, Jun 17, 3:26 PM CDT, 7 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
Jun 17, 4:10 PM CDT	Severe Thunderstorm Warning	AMA	Hansford, Hutchinson, Ochiltree	65 min
Jun 17, 4:23 PM CDT	Severe Thunderstorm Warning	AMA	Carson, Hartley, Hutchinson, Moore, Oldham, Potter	52 min
Jun 17, 4:30 PM CDT	Areal Flood Advisory	AMA	Potter, Randall	3 hr
Jun 17, 4:41 PM CDT	Severe Thunderstorm Warning	AMA	Armstrong, Carson, Donley, Gray	64 min
Jun 17, 5:02 PM CDT	Severe Thunderstorm Warning	AMA	Lipscomb, Ochiltree	43 min
Jun 17, 5:10 PM CDT	Severe Thunderstorm Warning	AMA	Carson, Gray, Hansford, Hutchinson, Moore, Ochiltree and 1 more	65 min
Jun 17, 5:24 PM CDT	Severe Thunderstorm Warning	AMA	Donley, Gray, Hemphill, Lipscomb, Ochiltree, Roberts	36 min
Jun 17, 6:09 PM CDT	Severe Thunderstorm Warning	AMA	Lipscomb, Ochiltree	46 min
Jun 17, 6:41 PM CDT	Severe Thunderstorm Warning	AMA	Lipscomb, Ochiltree	32 min

Nearby

Severe Thunderstorm Warnings in Texas, 2009 Every severe thunderstorm warning in 2009

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.