Alert archive / Colorado / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 63, NWS Goodland, KS

May 23, 2021Kit Carson County, Colorado

NWS Goodland, KS issued this severe thunderstorm warning at May 23, 2021, 6:36 PM MDT for Kit Carson County, Colorado. It was in force for 39 min. 6 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: May 23, 2021, 6:36 PM MDT (00:36 UTC)
Expired: May 23, 2021, 7:15 PM MDT
In force: 39 min
Issued by: NWS Goodland, KS
Area: Storm-based polygon
Hail: 1.0 in
Wind: 70.0 mph

County Kit Carson County, CO

The radar

The Goodland radar (KGLD), 63 km from the middle of the area, began a volume at 00:39 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
May 23, 6:45 PM MDT	TSTM WND GST 52	4 E Stratton, CO	MESONET STATION STN01 4.5 E STRATTON 2.
May 23, 6:45 PM MDT	TSTM WND GST 60	2 Nw Stratton, CO	ESTIMATED WINDS OF 50-60 MPH ALONG WITH PEA SIZE HAIL.
May 23, 6:45 PM MDT	HAIL 1.75	12 S Stratton, CO	KAKE STORM CHASER REPORTS GOLF BALL SIZED HAIL AT COUNTY ROAD G AND COUNTY ROAD 32.
May 23, 7:12 PM MDT	HAIL 1	3 W Bethune, CO	REPORT FROM MPING: QUARTER (1.00 IN.).
May 23, 7:19 PM MDT	HAIL 1.75	3 W Bethune, CO
May 23, 7:20 PM MDT	TSTM WND GST 56	4 E Stratton, CO	MESONET STATION STN01 4.5 E STRATTON 2.

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
May 23, 12:06 PM MDT	Tornado Watch	SPC	8 hr

The nearest sounding before it

Denver, CO (KDNR), launched 00:00Z, 0.6 hours before the alert went out and 86 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: 3282 m above ground
0-6 km bulk shear: 60 kt
0-1 km storm-relative helicity: 34 m²/s²
0-3 km storm-relative helicity: 132 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

732 
WUUS53 KGLD 240036
SVRGLD
COC063-240115-
/O.NEW.KGLD.SV.W.0063.210524T0036Z-210524T0115Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Goodland KS
636 PM MDT Sun May 23 2021

The National Weather Service in Goodland has issued a

* Severe Thunderstorm Warning for...
  Central Kit Carson County in east central Colorado...

* Until 715 PM MDT.

* At 636 PM MDT, a severe thunderstorm was located 6 miles south of
  Stratton, moving northeast at 35 mph.

  HAZARD...70 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect considerable 
           tree damage. Wind damage is also likely to mobile homes, 
           roofs, and outbuildings.

* This severe thunderstorm will be near...
  Stratton around 645 PM MDT.
  Bethune around 655 PM MDT.

This includes the following highways...
 Interstate 70 in Colorado between mile markers 413 and 437.
 Highway 385 between mile markers 186 and 206, and near mile marker
211.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 800 PM MDT for northeastern
and east central Colorado.

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

&&

A Tornado Watch remains in effect until 800 PM MDT for northeastern
and east central Colorado.

LAT...LON 3957 10262 3957 10205 3954 10205 3909 10244
      3910 10281
TIME...MOT...LOC 0036Z 220DEG 31KT 3922 10264 

HAIL...1.00IN
WIND...70MPH
 
$$

024

The office that day

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

Issued	Product	Office	Counties	Lasted
May 23, 6:01 PM MDT	Tornado Warning	GLD	Yuma	29 min
May 23, 6:27 PM MDT	Severe Thunderstorm Warning	GLD	Yuma	48 min
May 23, 6:52 PM MDT	Special Weather Statement	GLD	Cheyenne	38 min
May 23, 7:10 PM MDT	Severe Thunderstorm Warning	GLD	Cheyenne, Kit Carson	50 min
May 23, 7:25 PM MDT	Severe Thunderstorm Warning	GLD	Kit Carson, Yuma	50 min
May 23, 7:50 PM MDT	Severe Thunderstorm Warning	GLD	Cheyenne, Kit Carson	55 min
May 24, 5:07 AM MDT	Dense Fog Advisory	GLD	Kit Carson, Yuma	4 hr

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.