Alert archive / Colorado / Special Weather Statements in 2021

Special Weather Statement, NWS Goodland, KS

July 17, 2021Cheyenne County, Kit Carson County, Colorado

NWS Goodland, KS issued this special weather statement at Jul 17, 2021, 11:38 PM MDT for Cheyenne County, Kit Carson County, Colorado. It was in force for 82 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: Jul 17, 2021, 11:38 PM MDT (05:38 UTC)
Expired: Jul 18, 2021, 1:00 AM MDT
In force: 82 min
Issued by: NWS Goodland, KS

Counties Cheyenne County, CO, Kit Carson County, CO

The radar

The Goodland radar (KGLD), 95 km from the middle of the area, began a volume at 05:40 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, 5.6 hours before the alert went out and 79 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: 55 J/kg
Mixed-layer CIN: -39 J/kg
Mixed-layer LCL: 3294 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: -14 m²/s²
0-3 km storm-relative helicity: 4 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Jul 17, 9:34 PM MDT, 2 hours 4 minutes earlier.

Area forecast discussion, Jul 17, 9:34 PM MDT, 2 hours 4 minutes before

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Hazardous weather outlook, Jul 17, 8:29 AM MDT, 15 hours 9 minutes before

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In the hours before

Special weather statement, Jul 17, 10:44 PM MDT, 54 minutes before

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Special weather statement, Jul 17, 11:38 PM MDT, 0 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
Jul 18, 7:27 AM MDT	Dense Fog Advisory	GLD	Graham, Norton	93 min
Jul 18, 7:46 AM MDT	Special Weather Statement	GLD	Norton	14 min
Jul 18, 8:01 AM MDT	Special Weather Statement	GLD	Norton	14 min
Jul 18, 9:20 AM MDT	Severe Thunderstorm Warning	GLD	Decatur	55 min
Jul 18, 9:55 AM MDT	Severe Thunderstorm Warning	GLD	Decatur	50 min
Jul 18, 10:07 AM MDT	Severe Thunderstorm Warning	GLD	Norton	23 min
Jul 18, 10:23 AM MDT	Special Weather Statement	GLD	Graham, Sheridan	22 min
Jul 18, 10:45 AM MDT	Special Weather Statement	GLD	Graham	15 min
Jul 18, 10:49 AM MDT	Special Weather Statement	GLD	Decatur	26 min
Jul 18, 10:57 AM MDT	Special Weather Statement	GLD	Graham	18 min
Jul 18, 11:13 AM MDT	Special Weather Statement	GLD	Sheridan	17 min
Jul 18, 11:15 AM MDT	Special Weather Statement	GLD	Graham	15 min
Jul 18, 11:24 AM MDT	Special Weather Statement	GLD	Gove	21 min
Jul 18, 12:07 PM MDT	Special Weather Statement	GLD	Sherman	23 min
Jul 18, 12:17 PM MDT	Severe Thunderstorm Warning	GLD	Sherman	58 min
Jul 18, 12:32 PM MDT	Special Weather Statement	GLD	Wallace	13 min
Jul 18, 12:33 PM MDT	Severe Thunderstorm Warning	GLD	Sherman	46 min
Jul 18, 12:40 PM MDT	Severe Thunderstorm Warning	GLD	Wallace	46 min
Jul 18, 1:10 PM MDT	Special Weather Statement	GLD	Greeley	20 min
Jul 18, 1:18 PM MDT	Severe Thunderstorm Warning	GLD	Greeley	57 min
Jul 18, 1:47 PM MDT	Severe Thunderstorm Warning	GLD	Greeley	58 min
Jul 18, 2:19 PM MDT	Special Weather Statement	GLD	Cheyenne	26 min
Jul 18, 2:50 PM MDT	Special Weather Statement	GLD	Cheyenne	25 min
Jul 18, 3:01 PM MDT	Severe Thunderstorm Warning	GLD	Cheyenne	44 min
Jul 18, 3:25 PM MDT	Special Weather Statement	GLD	Rawlins	20 min
Jul 17, 10:44 PM MDT	Special Weather Statement	GLD	Kit Carson	61 min
Jul 17, 11:56 PM MDT	Special Weather Statement	GLD	Yuma	64 min
Jul 18, 12:45 PM MDT	Special Weather Statement	GLD	Cheyenne	15 min
Jul 18, 12:53 PM MDT	Severe Thunderstorm Warning	GLD	Kit Carson	39 min
Jul 18, 12:58 PM MDT	Special Weather Statement	GLD	Cheyenne	17 min
Jul 18, 1:14 PM MDT	Severe Thunderstorm Warning	GLD	Cheyenne	29 min
Jul 18, 1:35 PM MDT	Special Weather Statement	GLD	Cheyenne	25 min
Jul 18, 1:39 PM MDT	Severe Thunderstorm Warning	GLD	Cheyenne	45 min
Jul 18, 8:37 AM MDT	Special Weather Statement	GLD	Red Willow	23 min
Jul 18, 8:57 AM MDT	Special Weather Statement	GLD	Red Willow	18 min

Nearby

Special Weather Statements in Colorado, 2021 Every special weather statement 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.