Alert archive / Colorado / Tornado Warnings in 2011

Tornado Warning 10, NWS Goodland, KS

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

NWS Goodland, KS issued this tornado warning at May 18, 2011, 8:03 PM MDT for Cheyenne County, Kit Carson County, Colorado. It was in force for 15 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: May 18, 2011, 8:03 PM MDT (02:03 UTC)
Expired: May 18, 2011, 8:18 PM MDT
In force: 15 min
Issued by: NWS Goodland, KS
Area: Storm-based polygon

Counties Cheyenne County, CO, Kit Carson County, CO

The radar

The Goodland radar (KGLD), 78 km from the middle of the area, began a volume at 02:02 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 nearest sounding before it

Denver, CO (KDNR), launched 00:00Z, 2.1 hours before the alert went out and 119 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: 4 J/kg
Mixed-layer CIN: -22 J/kg
Mixed-layer LCL: 759 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 62 m²/s²
0-3 km storm-relative helicity: 234 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.

215 
WFUS53 KGLD 190203
TORGLD
COC017-063-190245-
/O.NEW.KGLD.TO.W.0010.110519T0203Z-110519T0245Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE GOODLAND KS
803 PM MDT WED MAY 18 2011

THE NATIONAL WEATHER SERVICE IN GOODLAND HAS ISSUED A

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

* UNTIL 845 PM MDT

* AT 758 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED NEAR FIRSTVIEW...AND WAS MOVING NORTHEAST AT 30
  MPH.

* LOCATIONS IMPACTED INCLUDE...
  MAINLY RURAL AREAS OF NORTHERN CHEYENNE AND SOUTHEASTERN KIT CARSON
  COUNTIES.

THIS INCLUDES HIGHWAY 385 BETWEEN MILE MARKERS 152 AND 172.

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 3917 10250 3902 10212 3872 10248 3882 10268
TIME...MOT...LOC 0203Z 218DEG 25KT 3886 10249
HAIL 1.00IN
$$

ROBINSON

1 follow-up statement

815 
WWUS53 KGLD 190218
SVSGLD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GOODLAND KS
818 PM MDT WED MAY 18 2011

COC017-063-190228-
/O.CAN.KGLD.TO.W.0010.000000T0000Z-110519T0245Z/
CHEYENNE CO-KIT CARSON CO-
818 PM MDT WED MAY 18 2011

...THE TORNADO WARNING FOR SOUTH CENTRAL KIT CARSON AND EASTERN
CHEYENNE COUNTIES IS CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR
PROPERTY...HOWEVER SMALL HAIL...GUSTY WINDS AND HEAVY RAIN ARE STILL
POSSIBLE WITH THIS THUNDERSTORM.

LAT...LON 3917 10250 3902 10212 3872 10248 3882 10268
TIME...MOT...LOC 0218Z 218DEG 25KT 3894 10241
$$

ROBINSON

The office that day

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

Issued	Product	Office	Counties	Lasted
May 18, 6:12 PM MDT	Tornado Warning	GLD	Cheyenne	63 min
May 18, 7:04 PM MDT	Severe Thunderstorm Warning	GLD	Cheyenne	26 min
May 18, 7:32 PM MDT	Special Weather Statement	GLD	Cheyenne	58 min
May 18, 8:18 PM MDT	Special Weather Statement	GLD	Cheyenne	27 min
May 18, 9:28 PM MDT	Severe Thunderstorm Warning	GLD	Kit Carson	48 min
May 19, 6:20 AM MDT	Dense Fog Advisory	GLD	Cheyenne, Kit Carson, Yuma	6 hr

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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.