Alert archive / Colorado / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 116, NWS Goodland, KS

June 19, 2021Cheyenne County, Kit Carson County, Colorado; Sherman County, Wallace County, Kansas

NWS Goodland, KS issued this severe thunderstorm warning at Jun 19, 2021, 6:00 PM MDT for Cheyenne County, Kit Carson County, Colorado; Sherman County, Wallace County, Kansas. It was in force for 60 min. 3 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 19, 2021, 6:00 PM MDT (00:00 UTC)
Expired
Jun 19, 2021, 7:00 PM MDT
In force
60 min
Issued by
NWS Goodland, KS
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Cheyenne County, CO, Kit Carson County, CO, Sherman County, KS, Wallace County, KS

The radar

The Goodland radar (KGLD), 38 km from the middle of the area, began a volume at 00:00 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

TimeReportWhereRemark
Jun 19, 6:30 PM MDTTSTM WND DMG6 N Goodland, KSA FREEZER, SITUATED IN THE BED OF A TRUCK TRAVELING ON HIGHWAY 27 (AROUND 6 MILES N OF GOODLAND), WAS TORN ASUNDER AND FLUNG ACROSS THE ROAD BY STRONG WESTERLY WINDS. TIME ESTIMATED VIA RADAR.
Jun 19, 6:49 PM MDTTSTM WND GST 5916 S Ruleton, KSSITE DELTA.
Jun 19, 7:03 PM MDTTSTM WND GST 553 Sw Brewster, KSTRAINED SPOTTER REPORTS WINDS GUSTING FROM 45 TO 55MPH.

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.

IssuedProductOfficeLasted
Jun 19, 1:44 PM MDTSevere Thunderstorm WatchSPC7 hr
Jun 19, 4:48 PM MDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Denver, CO (KDNR), launched 00:00Z, 0.0 hours before the alert went out and 138 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 2021-06-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 112 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 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 2021-06-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 17 square meters per square second.193958Sfc1 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
112 J/kg
Mixed-layer CIN
-93 J/kg
Mixed-layer LCL
2188 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
17 m²/s²
0-3 km storm-relative helicity
95 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

As transmitted.

921 
WUUS53 KGLD 200000
SVRGLD
COC017-063-KSC181-199-200100-
/O.NEW.KGLD.SV.W.0116.210620T0000Z-210620T0100Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Goodland KS
600 PM MDT Sat Jun 19 2021

The National Weather Service in Goodland has issued a

* Severe Thunderstorm Warning for...
  Eastern Cheyenne County in east central Colorado...
  Eastern Kit Carson County in east central Colorado...
  Wallace County in west central Kansas...
  Sherman County in northwestern Kansas...

* Until 700 PM MDT.

* At 600 PM MDT, severe thunderstorms were located along a line
  extending from 17 miles east of Cope to 3 miles west of Bethune to
  14 miles north of Kit Carson, moving east at 40 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* Severe thunderstorms will be near...
  Burlington around 620 PM MDT.

Other locations in the path of these severe thunderstorms include
Kanorado, Ruleton and Weskan.

People attending Parmer Park should seek safe shelter immediately!

This includes the following highways...
 Interstate 70 in Kansas between mile markers 0 and 35.
 Interstate 70 in Colorado between mile markers 432 and 450.
 Highway 385 between mile markers 141 and 206, and near mile marker
211.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3869 10262 3930 10238 3957 10243 3957 10139
      3913 10140 3913 10148 3870 10148
TIME...MOT...LOC 0000Z 275DEG 37KT 3959 10253 3930 10249 3898 10276 

HAIL...<.75IN
WIND...60MPH
 
$$

AW
1 follow-up statement
556 
WWUS53 KGLD 200043
SVSGLD

Severe Weather Statement
National Weather Service Goodland KS
643 PM MDT Sat Jun 19 2021

COC017-063-200053-
/O.CAN.KGLD.SV.W.0116.000000T0000Z-210620T0100Z/
Cheyenne CO-Kit Carson CO-
643 PM MDT Sat Jun 19 2021

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN CHEYENNE AND EASTERN
KIT CARSON COUNTIES IN EAST CENTRAL COLORADO IS CANCELLED...

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning has been cancelled.

A Severe Thunderstorm Watch remains in effect until 900 PM MDT for
east central Colorado. A Severe Thunderstorm Watch also remains in
effect until 1100 PM MDT for northwestern and west central Kansas.

LAT...LON 3870 10205 3957 10205 3957 10139 3914 10140
      3913 10148 3870 10148
TIME...MOT...LOC 0043Z 280DEG 47KT 3953 10160 3924 10156 3892 10184 

$$

KSC181-199-200100-
/O.CON.KGLD.SV.W.0116.000000T0000Z-210620T0100Z/
Wallace KS-Sherman KS-
643 PM MDT Sat Jun 19 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM MDT
FOR WALLACE AND SHERMAN COUNTIES...

At 643 PM MDT, severe thunderstorms were located along a line
extending from 15 miles south of Bird City to 11 miles southeast of
Goodland to 4 miles west of Sharon Springs, moving east at 55 mph.

HAZARD...70 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect considerable tree damage. Damage is likely to mobile 
         homes, roofs, and outbuildings.

These severe thunderstorms will remain over mainly rural areas of
Wallace and Sherman Counties, including the following locations...
Edson.

This includes Interstate 70 in Kansas between mile markers 0 and 35.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3870 10205 3957 10205 3957 10139 3914 10140
      3913 10148 3870 10148
TIME...MOT...LOC 0043Z 280DEG 47KT 3953 10160 3924 10156 3892 10184 

HAIL...<.75IN
WIND...70MPH
 
$$

AW

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 19, 6:29 PM MDTSevere Thunderstorm WarningGLDDecatur, Rawlins91 min
Jun 19, 6:34 PM MDTSevere Thunderstorm WarningGLDGove, Logan, Sheridan, Thomas86 min
Jun 19, 6:59 PM MDTSpecial Weather StatementGLDWallace31 min
Jun 19, 7:54 PM MDTSevere Thunderstorm WarningGLDDecatur, Norton, Rawlins66 min
Jun 19, 8:01 PM MDTSevere Thunderstorm WarningGLDGove, Graham, Sheridan89 min
Jun 19, 8:25 PM MDTSpecial Weather StatementGLDGreeley35 min
Jun 19, 8:48 PM MDTSpecial Weather StatementGLDLogan27 min
Jun 19, 9:04 PM MDTSevere Thunderstorm WarningGLDNorton26 min
Jun 19, 9:28 PM MDTSpecial Weather StatementGLDNorton32 min

Nearby

Severe Thunderstorm Warnings in Colorado, 2021Severe Thunderstorm Warnings in Kansas, 2021Every 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.