Alert archive / Colorado / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 193, NWS Goodland, KS

June 17, 2013Cheyenne County, Colorado

NWS Goodland, KS issued this severe thunderstorm warning at Jun 17, 2013, 8:06 PM MDT for Cheyenne County, Colorado. It was in force for 39 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: Jun 17, 2013, 8:06 PM MDT (02:06 UTC)
Expired: Jun 17, 2013, 8:45 PM MDT
In force: 39 min
Issued by: NWS Goodland, KS
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Cheyenne County, CO

The radar

The Goodland radar (KGLD), 98 km from the middle of the area, began a volume at 02:06 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
Jun 17, 2:21 PM MDT	Severe Thunderstorm Watch	SPC	9 hr

The nearest sounding before it

Denver, CO (KDNR), launched 00:00Z, 2.1 hours before the alert went out and 128 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: 3654 m above ground
0-6 km bulk shear: 20 kt
0-1 km storm-relative helicity: -10 m²/s²
0-3 km storm-relative helicity: -13 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.0

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 Jun 17, 6:54 PM MDT, 1 hour 12 minutes earlier.

Area forecast discussion, Jun 17, 6:54 PM MDT, 1 hour 12 minutes before

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Hazardous weather outlook, Jun 17, 11:03 AM MDT, 9 hours 3 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GOODLAND KS
1103 AM MDT MON JUN 17 2013

COZ090>092-KSZ001>004-013>016-027>029-041-042-NEZ079>081-181500-
YUMA-KIT CARSON-CHEYENNE CO-CHEYENNE KS-RAWLINS-DECATUR-NORTON-
SHERMAN-THOMAS-SHERIDAN-GRAHAM-WALLACE-LOGAN-GOVE-GREELEY-WICHITA-
DUNDY-HITCHCOCK-RED WILLOW-
1103 AM MDT MON JUN 17 2013 /1203 PM CDT MON JUN 17 2013/

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EXTREME SOUTHWEST
NEBRASKA...NORTHWEST KANSAS AND EAST CENTRAL COLORADO.

.DAY ONE...THIS AFTERNOON AND TONIGHT

SCATTERED TO NUMEROUS THUNDERSTORMS WILL DEVELOP AND MOVE ACROSS
THE ENTIRE AREA FROM THIS AFTERNOON INTO THE OVERNIGHT HOURS. MANY
OF THESE STORMS WILL BECOME SEVERE WITH LARGE HAIL AND DAMAGING
WINDS BEING THE MAIN THREATS.

THESE STORMS WILL ALSO BE CAPABLE OF PRODUCING TORRENTIAL RAINFALL
WHICH COULD CAUSE LOCALIZED FLOODING...ESPECIALLY IN PLACES THAT
RECEIVED HEAVY RAINFALL LAST NIGHT.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

ISOLATED TO SCATTERED THUNDERSTORMS WILL BE POSSIBLE FROM TUESDAY
INTO WEDNESDAY NIGHT. AFTER A DRY THURSDAY...THE CHANCE OF
THUNDERSTORMS WILL BEGIN TO INCREASE ON FRIDAY WITH THE GREATEST
CHANCE OF THUNDERSTORMS ON SATURDAY AND SUNDAY. A FEW OF THESE
STORMS COULD BECOME SEVERE.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE REQUIRED THIS AFTERNOON AND TONIGHT.

In the hours before

Local storm report, Jun 17, 5:24 PM MDT, 2 hours 42 minutes before

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Local storm report, Jun 17, 5:28 PM MDT, 2 hours 38 minutes before

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Local storm report, Jun 17, 6:27 PM MDT, 1 hour 39 minutes before

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Special weather statement, Jun 17, 7:28 PM MDT, 38 minutes before

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Special weather statement, Jun 17, 7:31 PM MDT, 35 minutes before

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Special weather statement, Jun 17, 7:57 PM MDT, 9 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
Jun 17, 6:06 PM MDT	Tornado Warning	GLD	Greeley	24 min
Jun 17, 6:27 PM MDT	Severe Thunderstorm Warning	GLD	Wallace	63 min
Jun 17, 6:30 PM MDT	Severe Thunderstorm Warning	GLD	Greeley	60 min
Jun 17, 7:28 PM MDT	Special Weather Statement	GLD	Greeley	32 min
Jun 18, 1:15 PM MDT	Special Weather Statement	GLD	Norton	45 min
Jun 18, 1:25 PM MDT	Severe Thunderstorm Warning	GLD	Norton	50 min
Jun 18, 2:11 PM MDT	Special Weather Statement	GLD	Graham	34 min
Jun 18, 2:41 PM MDT	Special Weather Statement	GLD	Graham	34 min
Jun 18, 2:52 PM MDT	Severe Thunderstorm Warning	GLD	Graham	38 min
Jun 18, 3:26 PM MDT	Severe Thunderstorm Warning	GLD	Graham	64 min
Jun 18, 3:51 PM MDT	Severe Thunderstorm Warning	GLD	Graham	39 min
Jun 18, 4:25 PM MDT	Flash Flood Warning	GLD	Graham	3 hr
Jun 18, 4:28 PM MDT	Special Weather Statement	GLD	Graham	32 min
Jun 18, 5:11 PM MDT	Special Weather Statement	GLD	Gove	34 min
Jun 17, 7:31 PM MDT	Special Weather Statement	GLD	Cheyenne	29 min
Jun 17, 7:57 PM MDT	Special Weather Statement	GLD	Cheyenne	33 min

Nearby

Severe Thunderstorm Warnings in Colorado, 2013 Every severe thunderstorm warning in 2013

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.