Alert archive / Colorado / Tornado Warnings in 2011

Tornado Warning 18, NWS Goodland, KS

June 18, 2011Cheyenne County, Kit Carson County, Colorado

NWS Goodland, KS issued this tornado warning at Jun 18, 2011, 3:16 PM MDT for Cheyenne County, Kit Carson County, Colorado. It was in force for 44 min. 5 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Jun 18, 2011, 3:16 PM MDT (21:16 UTC)
Expired: Jun 18, 2011, 4:00 PM MDT
In force: 44 min
Issued by: NWS Goodland, KS
Area: Storm-based polygon

Counties Cheyenne County, CO, Kit Carson County, CO

The radar

The Goodland radar (KGLD), 119 km from the middle of the area, began a volume at 21:19 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.

What was reported inside it

Time	Report	Where	Remark
Jun 18, 3:34 PM MDT	FUNNEL CLOUD	11 N Wild Horse, CO
Jun 18, 3:40 PM MDT	HAIL 1.75	13 Nnw Wild Horse, CO
Jun 18, 3:50 PM MDT	TSTM WND DMG	6 N Wild Horse, CO	5 AND 9 INCH LIMBS TORN FROM TREES. 10 FT. LONG EMPTY STOCK TANK BLOWN 1/8 MILE. 10 FT. LONG METAL FEEDER DAMAGED AND BLOWN 1/16 MILE. ESTIMATED TIME OF REPORT FROM RADAR AND NEARBY STORM REPORTS.
Jun 18, 3:52 PM MDT	TORNADO	5 Nne Wild Horse, CO	VIA STORM CHASER VIDEO
Jun 18, 4:10 PM MDT	HAIL 1.75	11 Nne Wild Horse, CO

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

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 18, 12:31 PM MDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Denver, CO (KDNR), launched 12:00Z, 9.3 hours before the alert went out and 95 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: 110 J/kg
Mixed-layer CIN: -160 J/kg
Mixed-layer LCL: 1171 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 55 m²/s²
0-3 km storm-relative helicity: 52 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.

810 
WFUS53 KGLD 182116
TORGLD
COC017-063-182200-
/O.NEW.KGLD.TO.W.0018.110618T2116Z-110618T2200Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE GOODLAND KS
316 PM MDT SAT JUN 18 2011

THE NATIONAL WEATHER SERVICE IN GOODLAND HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHWESTERN CHEYENNE COUNTY IN EAST CENTRAL COLORADO...
  SOUTHWESTERN KIT CARSON COUNTY IN EAST CENTRAL COLORADO...

* UNTIL 400 PM MDT

* AT 314 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED 11 MILES NORTH OF BOYERO...OR 16 MILES SOUTHWEST
  OF FLAGLER...AND WAS MOVING EAST AT 30 MPH.

  IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING
  DESTRUCTIVE HAIL UP TO HEN EGG SIZE.   

* LOCATIONS IMPACTED INCLUDE...
  MAINLY RURAL AREAS OF NORTHWESTERN CHEYENNE AND SOUTHWESTERN KIT
  CARSON COUNTIES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 3913 10317 3918 10316 3906 10257 3877 10270
      3895 10317 3901 10317
TIME...MOT...LOC 2117Z 291DEG 28KT 3907 10317
HAIL 2.00IN
$$

JLUNDQUI

1 follow-up statement

222 
WWUS53 KGLD 182140
SVSGLD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GOODLAND KS
340 PM MDT SAT JUN 18 2011

COC017-063-182200-
/O.CON.KGLD.TO.W.0018.000000T0000Z-110618T2200Z/
CHEYENNE CO-KIT CARSON CO-
340 PM MDT SAT JUN 18 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHWESTERN KIT CARSON
AND NORTHWESTERN CHEYENNE COUNTIES UNTIL 400 PM MDT...

AT 333 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED 13 MILES NORTHEAST OF AROYA...AND WAS MOVING EAST
AT 30 MPH.

AT 327 PM A FUNNEL CLOUD WAS REPORTED WITH THIS STORM.

IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING
DESTRUCTIVE HAIL UP TO HEN EGG SIZE.  

LOCATIONS IMPACTED INCLUDE...
  MAINLY RURAL AREAS OF NORTHERN CHEYENNE COUNTY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

HEAVY RAINFALL MAY HIDE THIS TORNADO. DO NOT WAIT TO SEE OR HEAR THE
TORNADO. TAKE COVER NOW.

&&

LAT...LON 3913 10317 3918 10316 3906 10257 3877 10270
      3895 10317 3901 10317
TIME...MOT...LOC 2138Z 291DEG 28KT 3901 10297
HAIL 2.00IN
$$

JLUNDQUI

The office that day

Everything else NWS Goodland, KS issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 17, 6:24 PM MDT	Severe Thunderstorm Warning	GLD	Cheyenne, Kit Carson	66 min
Jun 17, 6:32 PM MDT	Severe Thunderstorm Warning	GLD	Cheyenne, Kit Carson	32 min
Jun 18, 2:38 PM MDT	Severe Thunderstorm Warning	GLD	Yuma	41 min
Jun 18, 2:44 PM MDT	Severe Thunderstorm Warning	GLD	Kit Carson, Yuma	61 min
Jun 18, 3:08 PM MDT	Severe Thunderstorm Warning	GLD	Cheyenne, Kit Carson	67 min
Jun 18, 3:28 PM MDT	Severe Thunderstorm Warning	GLD	Kit Carson, Yuma	62 min
Jun 18, 3:57 PM MDT	Tornado Warning	GLD	Cheyenne, Kit Carson	48 min
Jun 18, 4:01 PM MDT	Severe Thunderstorm Warning	GLD	Kit Carson	59 min
Jun 18, 4:28 PM MDT	Tornado Warning	GLD	Cheyenne	47 min
Jun 18, 5:13 PM MDT	Tornado Warning	GLD	Cheyenne	47 min

Nearby

Tornado Warnings in Colorado, 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.