Alert archive / Colorado / Tornado Warnings in 2017

Tornado Warning 28, NWS Goodland, KS

June 28, 2017Cheyenne County, Kit Carson County, Colorado

NWS Goodland, KS issued this tornado warning at Jun 28, 2017, 11:10 PM MDT for Cheyenne County, Kit Carson County, Colorado. It was in force for 14 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 28, 2017, 11:10 PM MDT (05:10 UTC)
Expired
Jun 28, 2017, 11:24 PM MDT
In force
14 min
Issued by
NWS Goodland, KS
Area
Storm-based polygon
Tornado
Radar indicated
Hail
2.0 in

Counties Cheyenne County, CO, Kit Carson County, CO

The radar

The Pueblo radar (KPUX), 113 km from the middle of the area, began a volume at 05:12 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 (KDEN), launched 00:00Z, 5.2 hours before the alert went out and 93 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 2017-06-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 218 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 2017-06-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 36 square meters per square second.1939587897Sfc1 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
218 J/kg
Mixed-layer CIN
-72 J/kg
Mixed-layer LCL
3443 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
36 m²/s²
0-3 km storm-relative helicity
144 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

Open this sounding in Storm Lab

The text

As transmitted.

704 
WFUS53 KGLD 290510
TORGLD
COC017-063-290545-
/O.NEW.KGLD.TO.W.0028.170629T0510Z-170629T0545Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Goodland KS
1110 PM MDT WED JUN 28 2017

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 1145 PM MDT
    
* At 1109 PM MDT, a severe thunderstorm capable of producing a
  tornado was located 8 miles northeast of Boyero, or 19 miles south
  of Flagler, moving southeast at 15 mph.

  HAZARD...Tornado and hail up to two inches in diameter. 

  SOURCE...Radar indicated rotation. 

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely. 

* This tornadic thunderstorm will remain over mainly rural areas of
  northwestern Cheyenne and southwestern Kit Carson Counties in east
  central Colorado.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3913 10316 3915 10315 3906 10292 3886 10308
      3890 10316
TIME...MOT...LOC 0509Z 296DEG 13KT 3901 10316 

TORNADO...RADAR INDICATED
HAIL...2.00IN

$$

Lockhart
1 follow-up statement
131 
WWUS53 KGLD 290524
SVSGLD

Severe Weather Statement
National Weather Service Goodland KS
1124 PM MDT WED JUN 28 2017

COC017-063-290534-
/O.CAN.KGLD.TO.W.0028.000000T0000Z-170629T0545Z/
Cheyenne CO-Kit Carson CO-
1124 PM MDT WED JUN 28 2017

...THE TORNADO WARNING FOR NORTHWESTERN CHEYENNE AND SOUTHWESTERN KIT
CARSON COUNTIES IN EAST CENTRAL COLORADO IS CANCELLED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore the warning has been cancelled.

LAT...LON 3913 10316 3915 10315 3906 10292 3886 10308
      3890 10316
TIME...MOT...LOC 0522Z 296DEG 13KT 3899 10310 

$$

Lockhart

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 28, 10:42 PM MDTTornado WarningGLDCheyenne, Kit Carson33 min
Jun 28, 11:25 PM MDTSpecial Weather StatementGLDCheyenne65 min
Jun 28, 11:54 PM MDTSpecial Weather StatementGLDKit Carson66 min
Jun 29, 12:07 AM MDTSpecial Weather StatementGLDCheyenne53 min
Jun 29, 1:10 AM MDTSevere Thunderstorm WarningGLDCheyenne50 min
Jun 29, 2:49 PM MDTSpecial Weather StatementGLDKit Carson11 min
Jun 29, 2:59 PM MDTSpecial Weather StatementGLDKit Carson16 min
Jun 29, 3:16 PM MDTSpecial Weather StatementGLDKit Carson14 min
Jun 29, 3:30 PM MDTSpecial Weather StatementGLDKit Carson15 min
Jun 29, 3:34 PM MDTSpecial Weather StatementGLDKit Carson11 min
Jun 29, 3:46 PM MDTSevere Thunderstorm WarningGLDKit Carson59 min
Jun 29, 3:57 PM MDTTornado WarningGLDKit Carson33 min
Jun 29, 5:10 PM MDTSevere Thunderstorm WarningGLDKit Carson65 min
Jun 29, 5:25 PM MDTSpecial Weather StatementGLDCheyenne20 min
Jun 29, 5:59 PM MDTSpecial Weather StatementGLDCheyenne16 min

Nearby

Tornado Warnings in Colorado, 2017Every tornado warning in 2017Tornadoes in 2017

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.