Alert archive / Colorado / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 37, NWS Goodland, KS

May 8, 2013Cheyenne County, Colorado

NWS Goodland, KS issued this severe thunderstorm warning at May 8, 2013, 1:31 PM MDT for Cheyenne County, Colorado. It was in force for 44 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: May 8, 2013, 1:31 PM MDT (19:31 UTC)
Expired: May 8, 2013, 2:15 PM MDT
In force: 44 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 19:33 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
May 8, 1:25 PM MDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Denver, CO (KDNR), launched 12:00Z, 7.5 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: 1624 m above ground
0-6 km bulk shear: 20 kt
0-1 km storm-relative helicity: -14 m²/s²
0-3 km storm-relative helicity: 37 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 May 8, 11:36 AM MDT, 1 hour 55 minutes earlier.

Area forecast discussion, May 8, 11:36 AM MDT, 1 hour 55 minutes before

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Hazardous weather outlook, May 8, 10:45 AM MDT, 2 hours 46 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GOODLAND KS
1045 AM MDT WED MAY 8 2013

COZ090>092-KSZ001>004-013>016-027>029-041-042-NEZ079>081-091215-
YUMA-KIT CARSON-CHEYENNE CO-CHEYENNE KS-RAWLINS-DECATUR-NORTON-
SHERMAN-THOMAS-SHERIDAN-GRAHAM-WALLACE-LOGAN-GOVE-GREELEY-WICHITA-
DUNDY-HITCHCOCK-RED WILLOW-
1045 AM MDT WED MAY 8 2013 /1145 AM CDT WED MAY 8 2013/

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

.DAY ONE...THIS AFTERNOON AND TONIGHT

A STRONG DISTURBANCE WILL MOVE ACROSS THE AREA FROM THE SOUTHWEST
THIS AFTERNOON AND EVENING PRODUCING STRONG TO SEVERE
THUNDERSTORMS. THE GREATEST THREAT FOR SEVERE WEATHER WILL BE
SOUTH OF A LINE FROM CHEYENNE WELLS COLORADO TO COLBY AND HILL CITY
KANSAS. LARGE HAIL AND DAMAGING WINDS ARE THE PRIMARY THREATS.
THERE IS A SMALL THREAT FOR TORNADOES SOUTH OF A LINE FROM
TRIBUNE TO LEOTI AND GOVE. LOCALLY HEAVY RAINFALL IS ALSO
POSSIBLE.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE REQUIRED THIS AFTERNOON AND TONIGHT.

In the hours before

Local storm report, May 8, 10:31 AM MDT, 3 hours before

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Special weather statement, May 8, 12:56 PM MDT, 35 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
May 7, 6:01 PM MDT	Severe Thunderstorm Warning	GLD	Sherman	44 min
May 7, 6:08 PM MDT	Severe Thunderstorm Warning	GLD	Sheridan	52 min
May 7, 6:38 PM MDT	Special Weather Statement	GLD	Graham	67 min
May 7, 6:46 PM MDT	Severe Thunderstorm Warning	GLD	Graham	44 min
May 7, 6:53 PM MDT	Special Weather Statement	GLD	Gove	37 min
May 8, 4:03 PM MDT	Special Weather Statement	GLD	Greeley, Wallace	57 min
May 8, 5:36 PM MDT	Special Weather Statement	GLD	Wichita	54 min
May 8, 12:56 PM MDT	Special Weather Statement	GLD	Cheyenne	34 min
May 8, 2:19 PM MDT	Special Weather Statement	GLD	Cheyenne, Kit Carson	56 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.