Alert archive / Colorado / Severe Thunderstorm Warnings in 2026

Severe Thunderstorm Warning 337, NWS Goodland, KS

September 20, 2026Kit Carson County, Colorado

NWS Goodland, KS issued this severe thunderstorm warning at Sep 20, 2026, 8:47 PM MDT for Kit Carson County, Colorado. It was in force for 43 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Sep 20, 2026, 8:47 PM MDT (02:47 UTC)
Expired: Sep 20, 2026, 9:30 PM MDT
In force: 43 min
Issued by: NWS Goodland, KS
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Kit Carson County, CO

The radar

The Goodland radar (KGLD), 78 km from the middle of the area, began a volume at 02:47 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Sep 20, 3:41 PM MDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Dodge City, (KDDC), launched 00:00Z, 2.8 hours before the alert went out and 291 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: 278 J/kg
Mixed-layer CIN: -222 J/kg
Mixed-layer LCL: 838 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 21 m²/s²
0-3 km storm-relative helicity: 103 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Goodland, KS wrote its last area forecast discussion before this severe thunderstorm warning went out at Sep 20, 4:41 PM MDT, 4 hours 6 minutes earlier.

Area forecast discussion, Sep 20, 4:41 PM MDT, 4 hours 6 minutes before

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Hazardous weather outlook, Sep 20, 3:53 PM MDT, 4 hours 54 minutes before

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In the hours before

Local storm report, Sep 20, 5:10 PM MDT, 3 hours 37 minutes before

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Local storm report, Sep 20, 5:12 PM MDT, 3 hours 35 minutes before

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Local storm report, Sep 20, 5:13 PM MDT, 3 hours 34 minutes before

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Local storm report, Sep 20, 5:14 PM MDT, 3 hours 33 minutes before

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Local storm report, Sep 20, 5:17 PM MDT, 3 hours 30 minutes before

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Local storm report, Sep 20, 5:26 PM MDT, 3 hours 21 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 21, 5:15 AM MDT	Dense Fog Advisory	GLD	Cheyenne, Decatur, Norton, Rawlins	4 hr
Sep 20, 8:24 PM MDT	Areal Flood Advisory	GLD	Cheyenne, Kit Carson	6 hr
Sep 20, 9:56 PM MDT	Severe Thunderstorm Warning	GLD	Cheyenne, Kit Carson	49 min

Nearby

Severe Thunderstorm Warnings in Colorado, 2026 Every severe thunderstorm warning in 2026

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.