Alert archive / Colorado / Tornado Warnings in 2021

Tornado Warning 5, NWS Goodland, KS

April 27, 2021Kit Carson County, Yuma County, Colorado

NWS Goodland, KS issued this tornado warning at Apr 27, 2021, 4:47 PM MDT for Kit Carson County, Yuma County, Colorado. It was in force for 43 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: Apr 27, 2021, 4:47 PM MDT (22:47 UTC)
Expired: Apr 27, 2021, 5:30 PM MDT
In force: 43 min
Issued by: NWS Goodland, KS
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.0 in

Counties Kit Carson County, CO, Yuma County, CO

The radar

The Goodland radar (KGLD), 91 km from the middle of the area, began a volume at 22:49 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
Apr 27, 4:55 PM MDT	TSTM WND GST 60	10 Ssw Kirk, CO	CALLER REPORTED E60 MPH WINDS AND PEA SIZED HAIL.
Apr 27, 5:04 PM MDT	HAIL 1.75	6 Ssw Kirk, CO	CORRECTS PREVIOUS HAIL REPORT FROM 16 S STRATTON DUE TO INCORRECT LOCATION. CALLER REPORTED ESTIMATED PING PONG TO GOLF BALL HAIL. OVER A DURATION OF 4 MINUTES THE HAIL BECAME SMALLER AND HEAVIER.
Apr 27, 5:15 PM MDT	HAIL 1.75	5 Ssw Kirk, CO	DELAYED REPORT. KIT CARSON EM RELAYED REPORT OF GOLF BALL AND LARGER HAIL THAT LASTED DURATION OF APPROXIMATELY 10 MINUTES.

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
Apr 27, 11:45 AM MDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Denver, CO (KDNR), launched 12:00Z, 10.8 hours before the alert went out and 54 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: 3214 m above ground
0-6 km bulk shear: 67 kt
0-1 km storm-relative helicity: 51 m²/s²
0-3 km storm-relative helicity: 72 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

250 
WFUS53 KGLD 272247
TORGLD
COC063-125-272330-
/O.NEW.KGLD.TO.W.0005.210427T2247Z-210427T2330Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Goodland KS
447 PM MDT Tue Apr 27 2021

The National Weather Service in Goodland has issued a

* Tornado Warning for...
  Southwestern Yuma County in northeastern Colorado...
  North central Kit Carson County in east central Colorado...

* Until 530 PM MDT.
    
* At 446 PM MDT, a severe thunderstorm capable of producing a tornado
  was located 13 miles southeast of Cope, or 15 miles north of
  Stratton, moving north at 10 mph.

  HAZARD...Tornado and quarter size hail.

  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
  southwestern Yuma and north central Kit Carson Counties, including
  the following locations... Joes and Kirk.

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 3957 10280 3967 10280 3968 10255 3948 10256
      3946 10279 3957 10282
TIME...MOT...LOC 2246Z 172DEG 9KT 3951 10270 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

Husted

3 follow-up statements

368 
WWUS53 KGLD 272257
SVSGLD

Severe Weather Statement
National Weather Service Goodland KS
457 PM MDT Tue Apr 27 2021

COC063-125-272330-
/O.CON.KGLD.TO.W.0005.000000T0000Z-210427T2330Z/
Yuma CO-Kit Carson CO-
457 PM MDT Tue Apr 27 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 530 PM MDT FOR
SOUTHWESTERN YUMA AND NORTH CENTRAL KIT CARSON COUNTIES...
    
At 457 PM MDT, a severe thunderstorm capable of producing a tornado
was located 13 miles southeast of Cope, or 16 miles north of
Stratton, moving north at 10 mph.

HAZARD...Tornado and ping pong ball size hail.

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.

Locations impacted include...
Joes and Kirk. 

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 3957 10280 3967 10280 3968 10255 3948 10256
      3947 10268 3947 10276
TIME...MOT...LOC 2257Z 179DEG 10KT 3954 10266 

TORNADO...RADAR INDICATED
HAIL...1.50IN

$$

Husted

525 
WWUS53 KGLD 272314
SVSGLD

Severe Weather Statement
National Weather Service Goodland KS
514 PM MDT Tue Apr 27 2021

COC063-125-272330-
/O.CON.KGLD.TO.W.0005.000000T0000Z-210427T2330Z/
Yuma CO-Kit Carson CO-
514 PM MDT Tue Apr 27 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 530 PM MDT FOR
SOUTHWESTERN YUMA AND NORTH CENTRAL KIT CARSON COUNTIES...
    
At 513 PM MDT, a severe thunderstorm capable of producing a tornado
was located 12 miles southeast of Cope, or 17 miles north of
Stratton, moving northeast at 10 mph.

HAZARD...Tornado and golf ball size hail.

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.

Locations impacted include...
Joes and Kirk. 

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 3956 10277 3967 10277 3968 10255 3949 10256
      3948 10266 3950 10273
TIME...MOT...LOC 2313Z 208DEG 9KT 3955 10268 

TORNADO...RADAR INDICATED
HAIL...1.75IN

$$

Lockhart

255 
WWUS53 KGLD 272329
SVSGLD

Severe Weather Statement
National Weather Service Goodland KS
529 PM MDT Tue Apr 27 2021

COC063-125-272339-
/O.EXP.KGLD.TO.W.0005.000000T0000Z-210427T2330Z/
Yuma CO-Kit Carson CO-
529 PM MDT Tue Apr 27 2021

...THE TORNADO WARNING FOR SOUTHWESTERN YUMA AND NORTH CENTRAL KIT
CARSON COUNTIES WILL EXPIRE AT 530 PM MDT...
    
The tornado threat has diminished and the Tornado Warning has been
cancelled. However, large hail and damaging winds remain likely and a
Severe Thunderstorm Warning remains in effect for the area.

A Severe Thunderstorm Watch remains in effect until 700 PM MDT for
northeastern and east central Colorado.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Goodland.

LAT...LON 3956 10277 3967 10277 3968 10255 3949 10256
      3948 10266 3950 10273
TIME...MOT...LOC 2329Z 194DEG 9KT 3958 10263 

$$

Lockhart

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 27, 2:06 AM MDT	Severe Thunderstorm Warning	GLD	Yuma	39 min
Apr 27, 2:42 AM MDT	Severe Thunderstorm Warning	GLD	Yuma	33 min
Apr 27, 3:58 PM MDT	Special Weather Statement	GLD	Cheyenne	62 min
Apr 27, 4:03 PM MDT	Severe Thunderstorm Warning	GLD	Cheyenne, Kit Carson	57 min
Apr 27, 4:06 PM MDT	Tornado Warning	GLD	Cheyenne	24 min
Apr 27, 4:22 PM MDT	Special Weather Statement	GLD	Kit Carson	38 min
Apr 27, 4:31 PM MDT	Tornado Warning Tornado observed	GLD	Cheyenne	29 min
Apr 27, 4:40 PM MDT	Tornado Warning	GLD	Kit Carson	35 min
Apr 27, 4:57 PM MDT	Special Weather Statement	GLD	Kit Carson	48 min
Apr 27, 5:02 PM MDT	Severe Thunderstorm Warning	GLD	Cheyenne	32 min
Apr 27, 5:16 PM MDT	Severe Thunderstorm Warning	GLD	Yuma	29 min
Apr 27, 5:28 PM MDT	Severe Thunderstorm Warning	GLD	Kit Carson, Yuma	26 min
Apr 27, 5:33 PM MDT	Special Weather Statement	GLD	Cheyenne	42 min
Apr 27, 5:40 PM MDT	Special Weather Statement	GLD	Phillips	35 min
Apr 27, 5:53 PM MDT	Special Weather Statement	GLD	Kit Carson, Yuma	67 min

Nearby

Tornado Warnings in Colorado, 2021 Every tornado warning in 2021 Tornadoes 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.