Alert archive / Colorado / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 229, NWS Goodland, KS

September 1, 2021Kit Carson County, Colorado

NWS Goodland, KS issued this severe thunderstorm warning at Sep 1, 2021, 8:59 PM MDT for Kit Carson County, Colorado. It was in force for 46 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: Sep 1, 2021, 8:59 PM MDT (02:59 UTC)
Expired: Sep 1, 2021, 9:45 PM MDT
In force: 46 min
Issued by: NWS Goodland, KS
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

County Kit Carson County, CO

The radar

The Goodland radar (KGLD), 49 km from the middle of the area, began a volume at 02:59 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 (KDNR), launched 00:00Z, 3.0 hours before the alert went out and 98 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: 70 J/kg
Mixed-layer CIN: -87 J/kg
Mixed-layer LCL: 2793 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 23 m²/s²
0-3 km storm-relative helicity: 150 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.0

Open this sounding in Storm Lab

The text

As transmitted.

120 
WUUS53 KGLD 020259
SVRGLD
COC063-020345-
/O.NEW.KGLD.SV.W.0229.210902T0259Z-210902T0345Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Goodland KS
859 PM MDT Wed Sep 1 2021

The National Weather Service in Goodland has issued a

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

* Until 945 PM MDT.

* At 859 PM MDT, a severe thunderstorm was located 12 miles south of
  Burlington, moving north at 55 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* This severe thunderstorm will be near...
  Bethune around 910 PM MDT.
  Burlington around 915 PM MDT.

This includes the following highways...
 Interstate 70 in Colorado between mile markers 429 and 445.
 Highway 385 between mile markers 170 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 3957 10239 3957 10205 3952 10205 3905 10223
      3905 10248
TIME...MOT...LOC 0259Z 195DEG 49KT 3913 10234 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

DDT

3 follow-up statements

870 
WWUS53 KGLD 020307
SVSGLD

Severe Weather Statement
National Weather Service Goodland KS
907 PM MDT Wed Sep 1 2021

COC063-020345-
/O.CON.KGLD.SV.W.0229.000000T0000Z-210902T0345Z/
Kit Carson CO-
907 PM MDT Wed Sep 1 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 945 PM MDT
FOR EASTERN KIT CARSON COUNTY...

At 907 PM MDT, a severe thunderstorm was located 4 miles south of
Burlington, moving north 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.

This severe thunderstorm will remain over mainly rural areas of
eastern Kit Carson County.

This includes the following highways...
 Interstate 70 in Colorado between mile markers 429 and 445.
 Highway 385 between mile markers 170 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 3957 10239 3957 10205 3952 10205 3905 10223
      3905 10248
TIME...MOT...LOC 0307Z 195DEG 49KT 3924 10230 

THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...70 MPH

$$

DDT

238 
WWUS53 KGLD 020317
SVSGLD

Severe Weather Statement
National Weather Service Goodland KS
917 PM MDT Wed Sep 1 2021

COC063-020345-
/O.CON.KGLD.SV.W.0229.000000T0000Z-210902T0345Z/
Kit Carson CO-
917 PM MDT Wed Sep 1 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 945 PM MDT
FOR EASTERN KIT CARSON COUNTY...

At 916 PM MDT, a severe thunderstorm was located near Burlington,
moving northeast at 50 mph.

HAZARD...70 mph wind gusts.

SOURCE...Radar indicated.

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

This severe thunderstorm will remain over mainly rural areas of
eastern Kit Carson County.

This includes the following highways...
 Interstate 70 in Colorado between mile markers 429 and 445.
 Highway 385 between mile markers 170 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 3957 10239 3957 10205 3952 10205 3905 10223
      3905 10248
TIME...MOT...LOC 0316Z 208DEG 42KT 3929 10222 

THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...70 MPH

$$

DDT

046 
WWUS53 KGLD 020337
SVSGLD

Severe Weather Statement
National Weather Service Goodland KS
937 PM MDT Wed Sep 1 2021

COC063-020347-
/O.EXP.KGLD.SV.W.0229.000000T0000Z-210902T0345Z/
Kit Carson CO-
937 PM MDT Wed Sep 1 2021

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN KIT CARSON COUNTY WILL
EXPIRE AT 945 PM MDT...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire.  However gusty
winds and heavy rain are still possible with this thunderstorm.

LAT...LON 3957 10239 3957 10205 3952 10205 3905 10223
      3905 10248
TIME...MOT...LOC 0337Z 195DEG 49KT 3955 10213 

$$

DDT

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 1, 7:09 PM MDT	Special Weather Statement	GLD	Cheyenne	36 min
Sep 1, 7:34 PM MDT	Special Weather Statement	GLD	Cheyenne	26 min
Sep 1, 8:01 PM MDT	Special Weather Statement	GLD	Kit Carson	29 min
Sep 1, 8:17 PM MDT	Special Weather Statement	GLD	Kit Carson	28 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.