Alert archive / Colorado / Tornado Warnings in 2011

Tornado Warning 5, NWS Goodland, KS

May 11, 2011Kit Carson County, Colorado

NWS Goodland, KS issued this tornado warning at May 11, 2011, 4:17 PM MDT for Kit Carson County, Colorado. It was in force for 43 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 11, 2011, 4:17 PM MDT (22:17 UTC)
Expired: May 11, 2011, 5:00 PM MDT
In force: 43 min
Issued by: NWS Goodland, KS
Area: Storm-based polygon

County Kit Carson County, CO

The radar

The Goodland radar (KGLD), 106 km from the middle of the area, began a volume at 22:20 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 11, 3:52 PM MDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Denver, CO (KDNR), launched 12:00Z, 10.3 hours before the alert went out and 55 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: 629 m above ground
0-6 km bulk shear: 47 kt
0-1 km storm-relative helicity: 66 m²/s²
0-3 km storm-relative helicity: 583 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.

584 
WFUS53 KGLD 112217
TORGLD
COC063-112300-
/O.NEW.KGLD.TO.W.0005.110511T2217Z-110511T2300Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE GOODLAND KS
417 PM MDT WED MAY 11 2011

THE NATIONAL WEATHER SERVICE IN GOODLAND HAS ISSUED A

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

* UNTIL 500 PM MDT

* AT 416 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED 10 MILES NORTH OF SEIBERT...AND WAS MOVING NORTH
  AT 20 MPH.

* LOCATIONS IMPACTED INCLUDE...
  MAINLY RURAL AREAS OF NORTHWESTERN KIT CARSON COUNTY.

THIS INCLUDES INTERSTATE 70 BETWEEN MILE MARKERS 399 AND 416.

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 3958 10300 3957 10276 3921 10264 3918 10291
      3931 10304 3957 10315
TIME...MOT...LOC 2217Z 158DEG 19KT 3945 10289
HAIL 1.25IN
$$

LOCKHART

1 follow-up statement

538 
WWUS53 KGLD 112226
SVSGLD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GOODLAND KS
426 PM MDT WED MAY 11 2011

COC063-112300-
/O.CON.KGLD.TO.W.0005.000000T0000Z-110511T2300Z/
KIT CARSON CO-
426 PM MDT WED MAY 11 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHWESTERN KIT CARSON
COUNTY UNTIL 500 PM MDT...

AT 415 PM MDT...LOCAL LAW ENFORCEMENT REPORTED ONE INCH HAIL 4 MILES 
EAST OF SEIBERT AT INTERSTATE 70 MILE MARKER 409.

LOCATIONS IMPACTED INCLUDE...
  MAINLY RURAL AREAS OF NORTHWESTERN KIT CARSON COUNTY.

THIS INCLUDES INTERSTATE 70 BETWEEN MILE MARKERS 399 AND 416.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WARNING REMAINS IN EFFECT. 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 3958 10300 3957 10276 3921 10264 3918 10291
      3931 10304 3957 10315
TIME...MOT...LOC 2224Z 158DEG 19KT 3948 10291
HAIL 1.00IN
$$

LOCKHART

The office that day

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

Issued	Product	Office	Counties	Lasted
May 10, 7:32 PM MDT	Special Weather Statement	GLD	Yuma	43 min
May 10, 7:33 PM MDT	Special Weather Statement	GLD	Yuma	42 min
May 11, 3:02 PM MDT	Tornado Warning	GLD	Kit Carson	31 min
May 11, 3:36 PM MDT	Tornado Warning	GLD	Kit Carson	39 min
May 11, 4:40 PM MDT	Special Weather Statement	GLD	Kit Carson	2 hr
May 11, 4:41 PM MDT	Tornado Warning	GLD	Kit Carson	37 min
May 11, 4:46 PM MDT	Severe Thunderstorm Warning	GLD	Kit Carson	59 min
May 11, 4:56 PM MDT	Severe Thunderstorm Warning	GLD	Yuma	18 min
May 11, 5:28 PM MDT	Tornado Warning	GLD	Yuma	10 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.