Alert archive / Kansas / Severe Thunderstorm Warnings in 2010

Severe Thunderstorm Warning 159, NWS Goodland, KS

June 21, 2010Decatur County, Norton County, Kansas; Hitchcock County, Red Willow County, Nebraska

NWS Goodland, KS issued this severe thunderstorm warning at Jun 21, 2010, 2:39 AM CDT for Decatur County, Norton County, Kansas; Hitchcock County, Red Willow County, Nebraska. It was in force for 66 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 21, 2010, 2:39 AM CDT (07:39 UTC)
Expired: Jun 21, 2010, 3:45 AM CDT
In force: 66 min
Issued by: NWS Goodland, KS
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Decatur County, KS, Norton County, KS, Hitchcock County, NE, Red Willow County, NE

The radar

The Goodland radar (KGLD), 125 km from the middle of the area, began a volume at 07:39 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 20, 11:43 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 7.7 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: 2252 J/kg
Mixed-layer CIN: -99 J/kg
Mixed-layer LCL: 809 m above ground
0-6 km bulk shear: 56 kt
0-1 km storm-relative helicity: 80 m²/s²
0-3 km storm-relative helicity: 209 m²/s²
Significant tornado parameter: 1.8
Supercell composite: 11.0

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 21, 12:48 AM CDT, 1 hour 51 minutes earlier.

Area forecast discussion, Jun 21, 12:48 AM CDT, 1 hour 51 minutes before

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Hazardous weather outlook, Jun 20, 11:40 AM CDT, 14 hours 59 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GOODLAND KS
1040 AM MDT SUN JUN 20 2010

COZ090>092-KSZ001>004-013>016-027>029-041-042-NEZ079>081-211245-
YUMA-KIT CARSON-CHEYENNE CO-CHEYENNE KS-RAWLINS-DECATUR-NORTON-
SHERMAN-THOMAS-SHERIDAN-GRAHAM-WALLACE-LOGAN-GOVE-GREELEY-WICHITA-
DUNDY-HITCHCOCK-RED WILLOW-
1040 AM MDT SUN JUN 20 2010 /1140 AM CDT SUN JUN 20 2010/

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

.DAY ONE...TODAY AND TONIGHT

THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS THE ENTIRE
AREA TODAY. LOCALLY HEAVY RAINFALL...LARGE HAIL...DAMAGING
WINDS...AND A FEW TORNADOES WILL BE POSSIBLE.

SCATTERED THUNDERSTORMS WILL DEVELOP THIS AFTERNOON ALONG A STALLED
OUT FRONTAL BOUNDARY FROM TRIBUNE TO NORTON KANSAS. THIS ACTIVITY WILL
MOVE NORTHEAST THROUGH THE EVENING HOURS.

OTHER THUNDERSTORMS MAY DEVELOP IN NORTHEAST COLORADO THIS AFTERNOON
AND MOVE INTO AREAS NORTH OF INTERSTATE 70 THIS EVENING.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

A WARM FRONT WILL CONTINUE TO PROVIDE A FOCUS FOR MOISTURE AND
INSTABILITY FOR THUNDERSTORM DEVELOPMENT ACROSS THE TRI-STATE AREA
THROUGH WEDNESDAY. THERE WILL BE POTENTIAL FOR SEVERE WEATHER WITH
SOME OF THE STORMS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE REQUIRED TODAY AND TONIGHT.

In the hours before

Local storm report, Jun 21, 12:15 AM CDT, 2 hours 24 minutes before

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Local storm report, Jun 21, 12:17 AM CDT, 2 hours 22 minutes before

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Special weather statement, Jun 21, 1:42 AM CDT, 57 minutes before

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Special weather statement, Jun 21, 1:45 AM CDT, 54 minutes before

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Special weather statement, Jun 21, 2:06 AM CDT, 33 minutes before

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Special weather statement, Jun 21, 2:25 AM CDT, 14 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 20, 7:13 PM CDT	Tornado Warning	GLD	Gove	62 min
Jun 20, 7:45 PM CDT	Special Weather Statement	GLD	Gove	45 min
Jun 20, 7:53 PM CDT	Severe Thunderstorm Warning	GLD	Gove	21 min
Jun 20, 9:19 PM CDT	Severe Thunderstorm Warning	GLD	Decatur, Norton, Sheridan	35 min
Jun 20, 9:52 PM CDT	Special Weather Statement	GLD	Thomas	53 min
Jun 20, 10:51 PM CDT	Special Weather Statement	GLD	Rawlins	54 min
Jun 20, 11:05 PM CDT	Special Weather Statement	GLD	Rawlins	25 min
Jun 20, 11:20 PM CDT	Severe Thunderstorm Warning	GLD	Cheyenne, Rawlins	55 min
Jun 20, 11:34 PM CDT	Tornado Warning	GLD	Cheyenne, Rawlins	24 min
Jun 21, 1:08 AM CDT	Severe Thunderstorm Warning	GLD	Decatur, Norton	32 min
Jun 21, 3:47 AM CDT	Severe Thunderstorm Warning	GLD	Decatur, Norton	58 min
Jun 21, 12:02 AM CDT	Severe Thunderstorm Warning	GLD	Yuma	27 min
Jun 21, 12:17 AM CDT	Severe Thunderstorm Warning	GLD	Yuma	58 min
Jun 21, 2:06 AM CDT	Special Weather Statement	GLD	Yuma	24 min
Jun 21, 12:05 AM CDT	Severe Thunderstorm Warning	GLD	Dundy, Hitchcock	36 min
Jun 21, 1:45 AM CDT	Special Weather Statement	GLD	Hitchcock	45 min
Jun 21, 2:25 AM CDT	Special Weather Statement	GLD	Hitchcock, Red Willow	65 min

Nearby

Severe Thunderstorm Warnings in Kansas, 2010 Severe Thunderstorm Warnings in Nebraska, 2010 Every severe thunderstorm warning in 2010

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.