Alert archive / Colorado / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 130, NWS Goodland, KS

June 24, 2021Cheyenne County, Colorado

NWS Goodland, KS issued this severe thunderstorm warning at Jun 24, 2021, 7:11 PM MDT for Cheyenne County, Colorado. It was in force for 64 min. 2 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 24, 2021, 7:11 PM MDT (01:11 UTC)
Expired: Jun 24, 2021, 8:15 PM MDT
In force: 64 min
Issued by: NWS Goodland, KS
Area: Storm-based polygon
Hail: 2.0 in
Wind: 60.0 mph

County Cheyenne County, CO

The radar

The Goodland radar (KGLD), 101 km from the middle of the area, began a volume at 01:11 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 24, 7:18 PM MDT	TSTM WND GST 56	2 Sw Firstview, CO	MESONET STATION REPORTED A 56 MPH WIND GUST.
Jun 24, 7:21 PM MDT	HAIL 0.5	Kit Carson, CO	REPORT FROM MPING: HALF-INCH (0.50 IN.).

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 24, 3:56 PM MDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Denver, CO (KDNR), launched 00:00Z, 1.2 hours before the alert went out and 128 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: 10 J/kg
Mixed-layer CIN: -366 J/kg
Mixed-layer LCL: 2307 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 103 m²/s²
0-3 km storm-relative helicity: 130 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

As transmitted.

247 
WUUS53 KGLD 250111
SVRGLD
COC017-250215-
/O.NEW.KGLD.SV.W.0130.210625T0111Z-210625T0215Z/

BULLETIN - EAS ACTIVATION REQUESTED
Severe Thunderstorm Warning
National Weather Service Goodland KS
711 PM MDT Thu Jun 24 2021

The National Weather Service in Goodland has issued a

* Severe Thunderstorm Warning for...
  Cheyenne County in east central Colorado...

* Until 815 PM MDT.

* At 710 PM MDT, severe thunderstorms were located along a line
  extending from 22 miles east of Boyero to near Kit Carson to 11
  miles north of Eads, moving east at 35 mph.

  HAZARD...Two inch hail and 60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...People and animals outdoors will be injured. Expect hail 
           damage to roofs, siding, windows, and vehicles. Expect 
           wind damage to roofs, siding, and trees.

* Locations impacted include...
  Cheyenne Wells.

This includes Highway 385 between mile markers 136 and 169.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3878 10295 3904 10280 3905 10209 3862 10205
      3862 10294
TIME...MOT...LOC 0110Z 266DEG 32KT 3886 10287 3876 10276 3864 10275 

HAIL...2.00IN
WIND...60MPH
 
$$

MRC

4 follow-up statements

232 
WWUS53 KGLD 250130
SVSGLD

Severe Weather Statement
National Weather Service Goodland KS
730 PM MDT Thu Jun 24 2021

COC017-250215-
/O.CON.KGLD.SV.W.0130.000000T0000Z-210625T0215Z/
Cheyenne CO-
730 PM MDT Thu Jun 24 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 815 PM MDT
FOR EASTERN CHEYENNE COUNTY IN EAST CENTRAL COLORADO...

At 730 PM MDT, severe thunderstorms were located along a line
extending from 10 miles northeast of Kit Carson to 10 miles west of
Cheyenne Wells to 14 miles north of Chivington, moving east at 35
mph.

HAZARD...Two inch hail and 60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...People and animals outdoors will be injured. Expect hail 
         damage to roofs, siding, windows, and vehicles. Expect wind 
         damage to roofs, siding, and trees.

Locations impacted include...
Cheyenne Wells, Arapahoe and Firstview. 

This includes Highway 385 between mile markers 136 and 169.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3878 10279 3904 10269 3905 10209 3862 10205
      3862 10271
TIME...MOT...LOC 0130Z 266DEG 32KT 3887 10265 3877 10254 3865 10253 

HAIL...2.00IN
WIND...60MPH
 
$$

MRC

712 
WWUS53 KGLD 250144
SVSGLD

Severe Weather Statement
National Weather Service Goodland KS
744 PM MDT Thu Jun 24 2021

COC017-250215-
/O.CON.KGLD.SV.W.0130.000000T0000Z-210625T0215Z/
Cheyenne CO-
744 PM MDT Thu Jun 24 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 815 PM MDT
FOR EASTERN CHEYENNE COUNTY IN EAST CENTRAL COLORADO...

At 744 PM MDT, severe thunderstorms were located along a line
extending from 17 miles northeast of Kit Carson to 3 miles southwest
of Cheyenne Wells to 14 miles north of Sheridan Lake, moving east at
35 mph.

HAZARD...Two inch hail and 60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...People and animals outdoors will be injured. Expect hail 
         damage to roofs, siding, windows, and vehicles. Expect wind 
         damage to roofs, siding, and trees.

Locations impacted include...
Cheyenne Wells, Arapahoe and Firstview. 

This includes Highway 385 between mile markers 136 and 169.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3879 10260 3904 10261 3905 10209 3862 10205
      3862 10256
TIME...MOT...LOC 0144Z 266DEG 32KT 3888 10250 3878 10239 3866 10238 

HAIL...2.00IN
WIND...60MPH
 
$$

MRC

931 
WWUS53 KGLD 250159
SVSGLD

Severe Weather Statement
National Weather Service Goodland KS
759 PM MDT Thu Jun 24 2021

COC017-250215-
/O.CON.KGLD.SV.W.0130.000000T0000Z-210625T0215Z/
Cheyenne CO-
759 PM MDT Thu Jun 24 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 815 PM MDT
FOR EASTERN CHEYENNE COUNTY IN EAST CENTRAL COLORADO...

At 758 PM MDT, severe thunderstorms were located along a line
extending from 4 miles north of Cheyenne Wells to 15 miles west of
Weskan to 14 miles north of Sheridan Lake, moving east at 35 mph.

HAZARD...Ping pong ball size hail and 60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...People and animals outdoors will be injured. Expect hail 
         damage to roofs, siding, windows, and vehicles. Expect wind 
         damage to roofs, siding, and trees.

Locations impacted include...
Cheyenne Wells and Arapahoe. 

This includes Highway 385 between mile markers 136 and 169.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3889 10243 3904 10235 3905 10209 3862 10205
      3862 10241
TIME...MOT...LOC 0158Z 266DEG 32KT 3889 10235 3879 10224 3867 10223 

HAIL...1.50IN
WIND...60MPH
 
$$

MRC

709 
WWUS53 KGLD 250212
SVSGLD

Severe Weather Statement
National Weather Service Goodland KS
812 PM MDT Thu Jun 24 2021

COC017-250221-
/O.EXP.KGLD.SV.W.0130.000000T0000Z-210625T0215Z/
Cheyenne CO-
812 PM MDT Thu Jun 24 2021

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN CHEYENNE COUNTY IN
EAST CENTRAL COLORADO WILL EXPIRE AT 815 PM MDT...
    
The storms which prompted the warning have moved out of the area.
Therefore, the warning will be allowed to expire.  However gusty
winds are still possible with these thunderstorms.

A Severe Thunderstorm Watch remains in effect until 1000 PM MDT for
east central Colorado.

LAT...LON 3889 10243 3904 10235 3905 10209 3862 10205
      3862 10241
TIME...MOT...LOC 0211Z 266DEG 32KT 3890 10225 3880 10214 3868 10213 

$$

MRC

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 24, 6:22 PM MDT	Severe Thunderstorm Warning	GLD	Cheyenne	53 min
Jun 24, 6:30 PM MDT	Severe Thunderstorm Warning	GLD	Kit Carson	30 min
Jun 24, 6:57 PM MDT	Severe Thunderstorm Warning	GLD	Cheyenne, Kit Carson	52 min
Jun 25, 3:05 PM MDT	Special Weather Statement	GLD	Yuma	25 min
Jun 25, 3:29 PM MDT	Special Weather Statement	GLD	Yuma	31 min
Jun 25, 3:53 PM MDT	Special Weather Statement	GLD	Cheyenne	37 min
Jun 25, 3:58 PM MDT	Special Weather Statement	GLD	Yuma	32 min
Jun 25, 4:28 PM MDT	Severe Thunderstorm Warning	GLD	Cheyenne, Kit Carson	43 min
Jun 25, 4:34 PM MDT	Special Weather Statement	GLD	Cheyenne	26 min

Nearby

Severe Thunderstorm Warnings in Colorado, 2021 Every severe thunderstorm warning in 2021

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.