Alert archive / Colorado / Tornado Warnings in 2012

Tornado Warning 6, NWS Goodland, KS

April 27, 2012Cheyenne County, Kit Carson County, Colorado

NWS Goodland, KS issued this tornado warning at Apr 27, 2012, 2:18 AM MDT for Cheyenne County, Kit Carson County, Colorado. It was in force for 27 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
Apr 27, 2012, 2:18 AM MDT (08:18 UTC)
Expired
Apr 27, 2012, 2:45 AM MDT
In force
27 min
Issued by
NWS Goodland, KS
Area
Storm-based polygon

Counties Cheyenne County, CO, Kit Carson County, CO

The radar

The Goodland radar (KGLD), 99 km from the middle of the area, began a volume at 08:20 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.

IssuedProductOfficeLasted
Apr 26, 9:00 PM MDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Denver, CO (KDNR), launched 00:00Z, 8.3 hours before the alert went out and 88 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-pSkew-T log-p diagram, Denver, CO at 00:00Z on 2012-04-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 95 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Denver, CO at 00:00Z on 2012-04-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 42 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
95 J/kg
Mixed-layer CIN
-85 J/kg
Mixed-layer LCL
2538 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
42 m²/s²
0-3 km storm-relative helicity
175 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.

853 
WFUS53 KGLD 270818
TORGLD
COC017-063-270845-
/O.NEW.KGLD.TO.W.0006.120427T0818Z-120427T0845Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE GOODLAND KS
218 AM MDT FRI APR 27 2012

THE NATIONAL WEATHER SERVICE IN GOODLAND HAS ISSUED A

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

* UNTIL 245 AM MDT

* AT 215 AM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED 16 MILES NORTH OF KIT CARSON...AND WAS MOVING
  NORTH AT 50 MPH.

* LOCATIONS IMPACTED INCLUDE...
  MAINLY RURAL AREAS OF SOUTHERN KIT CARSON 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.

TORNADOES ARE DIFFICULT TO SEE AND CONFIRM AT NIGHT. TAKE COVER NOW.

&&

LAT...LON 3927 10295 3927 10262 3896 10271 3896 10287
TIME...MOT...LOC 0819Z 173DEG 42KT 3904 10279
HAIL 1.25IN
$$

FOLTZ
3 follow-up statements
094 
WWUS53 KGLD 270825
SVSGLD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GOODLAND KS
225 AM MDT FRI APR 27 2012

COC017-270835-
/O.CAN.KGLD.TO.W.0006.000000T0000Z-120427T0845Z/
CHEYENNE CO-
225 AM MDT FRI APR 27 2012

...THE TORNADO WARNING FOR NORTH CENTRAL CHEYENNE COUNTY IS
CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF CHEYENNE 
COUNTY.

LAT...LON 3927 10295 3927 10262 3904 10269 3904 10289
TIME...MOT...LOC 0825Z 173DEG 42KT 3911 10280
$$

COC063-270845-
/O.CON.KGLD.TO.W.0006.000000T0000Z-120427T0845Z/
KIT CARSON CO-
225 AM MDT FRI APR 27 2012

...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTH CENTRAL KIT CARSON
COUNTY UNTIL 245 AM MDT...

AT 220 AM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
STORM WAS LOCATED 17 MILES SOUTH OF SEIBERT...AND WAS MOVING NORTH AT
50 MPH.

LOCATIONS IMPACTED INCLUDE...
  MAINLY RURAL AREAS OF CENTRAL KIT CARSON 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.

TORNADOES ARE DIFFICULT TO SEE AT NIGHT. TAKE COVER NOW.

&&

LAT...LON 3927 10295 3927 10262 3904 10269 3904 10289
TIME...MOT...LOC 0825Z 173DEG 42KT 3911 10280
HAIL 1.25IN
$$

FOLTZ
385 
WWUS53 KGLD 270832
SVSGLD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GOODLAND KS
232 AM MDT FRI APR 27 2012

COC063-270845-
/O.CON.KGLD.TO.W.0006.000000T0000Z-120427T0845Z/
KIT CARSON CO-
232 AM MDT FRI APR 27 2012

...A TORNADO WARNING REMAINS IN EFFECT FOR CENTRAL KIT CARSON COUNTY
UNTIL 245 AM MDT...

AT 229 AM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
STORM WAS LOCATED 10 MILES SOUTH OF VONA...AND WAS MOVING NORTH AT 50
MPH.

LOCATIONS IMPACTED INCLUDE...
  MAINLY RURAL AREAS OF CENTRAL KIT CARSON 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.

TORNADOES ARE DIFFICULT TO SEE AT NIGHT. TAKE COVER NOW.

&&

LAT...LON 3927 10295 3927 10262 3911 10268 3911 10287
TIME...MOT...LOC 0833Z 179DEG 42KT 3920 10278
HAIL 1.00IN
$$

FOLTZ
047 
WWUS53 KGLD 270838
SVSGLD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GOODLAND KS
238 AM MDT FRI APR 27 2012

COC063-270848-
/O.EXP.KGLD.TO.W.0006.000000T0000Z-120427T0845Z/
KIT CARSON CO-
238 AM MDT FRI APR 27 2012

...THE TORNADO WARNING FOR CENTRAL KIT CARSON COUNTY WILL EXPIRE AT
245 AM MDT/345 AM CDT/...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.

ADDITIONAL STRONG THUNDERSTORMS ARE STILL POSSIBLE...AND A SEVERE 
THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 4 AM MDT. 

LAT...LON 3927 10295 3927 10262 3911 10268 3911 10287
TIME...MOT...LOC 0838Z 179DEG 42KT 3926 10278
$$

FOLTZ

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 27, 12:52 AM MDTSpecial Weather StatementGLDCheyenne23 min
Apr 27, 1:23 AM MDTSpecial Weather StatementGLDCheyenne52 min
Apr 27, 1:43 AM MDTSevere Thunderstorm WarningGLDCheyenne, Kit Carson47 min
Apr 27, 2:59 AM MDTTornado WarningGLDCheyenne31 min
Apr 27, 8:28 AM MDTHigh Wind WarningGLDCheyenne, Kit Carson, Yuma6 hr

Nearby

Tornado Warnings in Colorado, 2012Every tornado warning in 2012Tornadoes in 2012

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.