Alert archive / Texas / Tornado Warnings in 2011

Tornado Warning 4, NWS Amarillo, TX

June 11, 2011Lipscomb County, Texas; Beaver County, Oklahoma

NWS Amarillo, TX issued this tornado warning at Jun 11, 2011, 8:00 PM CDT for Lipscomb County, Texas; Beaver County, Oklahoma. It was in force for 30 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: Jun 11, 2011, 8:00 PM CDT (01:00 UTC)
Expired: Jun 11, 2011, 8:30 PM CDT
In force: 30 min
Issued by: NWS Amarillo, TX
Area: Storm-based polygon

Counties Beaver County, OK, Lipscomb County, TX

The radar

The Dodge City radar (KDDC), 142 km from the middle of the area, began a volume at 01:02 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
Jun 11, 3:39 PM CDT	Severe Thunderstorm Watch	SPC	9 hr

The nearest sounding before it

Dodge City, (KDDC), launched 00:00Z, 1.0 hours before the alert went out and 144 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: 889 J/kg
Mixed-layer CIN: -62 J/kg
Mixed-layer LCL: 1800 m above ground
0-6 km bulk shear: 28 kt
0-1 km storm-relative helicity: -2 m²/s²
0-3 km storm-relative helicity: 187 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

192 
WFUS54 KAMA 120100
TORAMA
OKC007-TXC295-120130-
/O.NEW.KAMA.TO.W.0004.110612T0100Z-110612T0130Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE AMARILLO TX
800 PM CDT SAT JUN 11 2011

THE NATIONAL WEATHER SERVICE IN AMARILLO HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHEASTERN BEAVER COUNTY IN THE PANHANDLE OF OKLAHOMA.
  NORTHEASTERN LIPSCOMB COUNTY IN THE PANHANDLE OF TEXAS.

* UNTIL 830 PM CDT

* AT 757 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS HAVE
  DETECTED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THE
  MOST DANGEROUS PART OF THIS STORM WAS LOCATED NEAR FOLLETT...OR
  ABOUT 19 MILES NORTHEAST OF LIPSCOMB...MOVING EAST AT 15 MPH.

* SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE SLAPOUT AND
  FOLLETT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO MAY FORM AT ANY TIME...TAKE COVER NOW. ABANDON MOBILE HOMES
AND VEHICLES FOR MORE SUBSTANTIAL SHELTER. AVOID WINDOWS.

TO REPORT SEVERE WEATHER...PLEASE CALL THE NATIONAL WEATHER SERVICE
AT 8 0 6 3 3 5 1 1 2 1.

&&

LAT...LON 3635 10000 3640 10024 3664 10016 3669 10000
TIME...MOT...LOC 0101Z 268DEG 15KT 3649 10011

$$

TB

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 11, 7:04 PM CDT	Severe Thunderstorm Warning	AMA	Lipscomb, Ochiltree	56 min
Jun 11, 7:29 PM CDT	Tornado Warning	AMA	Lipscomb	31 min
Jun 11, 8:02 PM CDT	Severe Thunderstorm Warning	AMA	Lipscomb, Ochiltree	58 min
Jun 11, 8:53 PM CDT	Severe Thunderstorm Warning	AMA	Lipscomb	56 min
Jun 12, 3:26 AM CDT	Red Flag Warning	AMA	Armstrong, Carson, Dallam, Deaf Smith, Hansford, Hartley and 6 more	18 hr
Jun 12, 3:00 PM CDT	Fire Weather Watch	AMA	Armstrong, Carson, Collingsworth, Dallam, Deaf Smith, Donley and 14 more	14 hr
Jun 11, 7:24 PM CDT	Tornado Warning	AMA	Beaver, Texas	51 min
Jun 11, 8:07 PM CDT	Tornado Warning	AMA	Beaver	23 min
Jun 11, 8:18 PM CDT	Severe Thunderstorm Warning	AMA	Beaver, Texas	26 min
Jun 11, 8:29 PM CDT	Severe Thunderstorm Warning	AMA	Beaver	61 min
Jun 11, 9:19 PM CDT	Severe Thunderstorm Warning	AMA	Beaver	39 min
Jun 11, 9:55 PM CDT	Severe Thunderstorm Warning	AMA	Beaver	5 min

Nearby

Tornado Warnings in Texas, 2011 Tornado Warnings in Oklahoma, 2011 Every tornado warning in 2011 Tornadoes in 2011

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.