Alert archive / Texas / Tornado Warnings in 2010

Tornado Warning 15, NWS Amarillo, TX

May 12, 2010Collingsworth County, Texas

NWS Amarillo, TX issued this tornado warning at May 12, 2010, 6:26 PM CDT for Collingsworth County, Texas. It was in force for 25 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 12, 2010, 6:26 PM CDT (23:26 UTC)
Expired: May 12, 2010, 6:51 PM CDT
In force: 25 min
Issued by: NWS Amarillo, TX
Area: Storm-based polygon

County Collingsworth County, TX

The radar

The Amarillo radar (KAMA), 134 km from the middle of the area, began a volume at 23:28 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
May 12, 5:08 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 12:00Z, 11.4 hours before the alert went out and 133 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 3606 m above ground
0-6 km bulk shear: 53 kt
0-1 km storm-relative helicity: -83 m²/s²
0-3 km storm-relative helicity: 46 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this tornado 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 tornado warning went out at May 12, 5:16 PM CDT, 1 hour 10 minutes earlier.

Area forecast discussion, May 12, 5:16 PM CDT, 1 hour 10 minutes before

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Hazardous weather outlook, May 12, 5:16 PM CDT, 1 hour 10 minutes before

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In the hours before

Special weather statement, May 12, 4:45 PM CDT, 1 hour 41 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AMARILLO TX
445 PM CDT WED MAY 12 2010

TXZ015-020-122245-
WHEELER TX-COLLINGSWORTH TX-
445 PM CDT WED MAY 12 2010

...SIGNIFICANT WEATHER ADVISORY...

THE NATIONAL WEATHER SERVICE IN AMARILLO HAS ISSUED A SIGNIFICANT
WEATHER ADVISORY EFFECTIVE UNTIL 545 PM CDT FOR COLLINGSWORTH AND
WHEELER COUNTIES.

AT 442 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS HAVE DETECTED
A STRONG THUNDERSTORM OVER LUTIE...MOVING NORTHEAST AT 35 MPH.

HAIL UP TO THE SIZE OF PENNIES AND WINDS AROUND 50 MPH ARE POSSIBLE.

NUNEZ

Local storm report, May 12, 5:20 PM CDT, 1 hour 6 minutes before

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Local storm report, May 12, 5:30 PM CDT, 56 minutes before

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Special weather statement, May 12, 5:51 PM CDT, 35 minutes before

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Local storm report, May 12, 6:24 PM CDT, 2 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 12, 3:36 AM CDT	Red Flag Warning	AMA	Deaf Smith, Oldham, Potter, Randall	8 hr
May 12, 4:54 PM CDT	Severe Thunderstorm Warning	AMA	Collingsworth, Wheeler	51 min
May 12, 5:42 PM CDT	Severe Thunderstorm Warning	AMA	Collingsworth, Wheeler	63 min

Nearby

Tornado Warnings in Texas, 2010 Every tornado warning in 2010 Tornadoes 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.