Alert archive / Kansas / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 135, NWS Goodland, KS

June 20, 2017Graham County, Sheridan County, Kansas

NWS Goodland, KS issued this severe thunderstorm warning at Jun 20, 2017, 7:23 PM CDT for Graham County, Sheridan County, Kansas. It was in force for 15 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 20, 2017, 7:23 PM CDT (00:23 UTC)
Expired: Jun 20, 2017, 7:38 PM CDT
In force: 15 min
Issued by: NWS Goodland, KS
Area: Storm-based polygon
Hail: 1.25 in
Wind: 60.0 mph

Counties Graham County, KS, Sheridan County, KS

The radar

The Goodland radar (KGLD), 132 km from the middle of the area, began a volume at 00:25 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, 1:52 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Dodge City, (KDDC), launched 00:00Z, 0.4 hours before the alert went out and 177 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: 1848 J/kg
Mixed-layer CIN: -51 J/kg
Mixed-layer LCL: 1901 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: 132 m²/s²
0-3 km storm-relative helicity: 426 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 20, 6:23 PM CDT, 1 hour earlier.

Area forecast discussion, Jun 20, 6:23 PM CDT, 1 hour before

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Hazardous weather outlook, Jun 20, 12:03 PM CDT, 7 hours 20 minutes before

Hazardous Weather Outlook
National Weather Service Goodland KS
1103 AM MDT Tue Jun 20 2017

COZ090>092-KSZ001>004-013>016-027>029-041-042-NEZ079>081-211645-
Yuma County-Kit Carson County-Cheyenne County-Cheyenne-Rawlins-
Decatur-Norton-Sherman-Thomas-Sheridan-Graham-Wallace-Logan-Gove-
Greeley-Wichita-Dundy-Hitchcock-Red Willow-
1103 AM MDT Tue Jun 20 2017 /1203 PM CDT Tue Jun 20 2017/

This hazardous weather outlook is for east central Colorado...
extreme southwest Nebraska and northwest Kansas.

.DAY ONE...THIS AFTERNOON AND TONIGHT...

There is a marginal risk of severe thunderstorms east of a line from
Tribune, Kansas to McCook, Nebraska as scattered thunderstorms
develop and move eastward this afternoon and evening. The primary
threats during the afternoon will be damaging winds with a transition
to damaging winds and large hail with localized heavy rain during
the late afternoon and evening east of a line from Leoti, Kansas to
Norton, Kansas.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH TUESDAY...

There is a possibility of severe thunderstorms east of a line from
Tribune, Kansas to McCook, Nebraska Wednesday afternoon and evening.
Damaging winds and large hail will be the main threats. Locally
heavy rainfall may also produce isolated flash flooding.

Another round of severe thunderstorms is possible again Thursday
afternoon through Thursday night across the central high plains
region. Damaging winds and large hail are the main threats. Locally
heavy rainfall and an increased threat for flash flooding are also
possible.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be required.

In the hours before

Local storm report, Jun 20, 6:33 PM CDT, 50 minutes before

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Special weather statement, Jun 20, 6:36 PM CDT, 47 minutes before

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Local storm report, Jun 20, 6:47 PM CDT, 36 minutes before

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Special weather statement, Jun 20, 7:07 PM CDT, 16 minutes before

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Local storm report, Jun 20, 7:13 PM CDT, 10 minutes before

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Special weather statement, Jun 20, 7:14 PM CDT, 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 20, 7:07 PM CDT	Special Weather Statement	GLD	Graham	23 min
Jun 20, 7:14 PM CDT	Special Weather Statement	GLD	Sheridan	31 min
Jun 21, 2:17 AM CDT	Special Weather Statement	GLD	Sherman	28 min
Jun 21, 3:17 PM CDT	Special Weather Statement	GLD	Wichita	28 min
Jun 21, 3:21 PM CDT	Severe Thunderstorm Warning	GLD	Wichita	9 min
Jun 21, 3:44 PM CDT	Special Weather Statement	GLD	Wichita	31 min
Jun 21, 3:52 PM CDT	Special Weather Statement	GLD	Greeley	23 min
Jun 21, 4:05 PM CDT	Severe Thunderstorm Warning	GLD	Greeley	25 min
Jun 21, 4:12 PM CDT	Severe Thunderstorm Warning	GLD	Wichita	19 min
Jun 21, 5:10 PM CDT	Special Weather Statement	GLD	Wichita	35 min
Jun 21, 5:57 PM CDT	Special Weather Statement	GLD	Gove	33 min
Jun 21, 6:06 PM CDT	Severe Thunderstorm Warning	GLD	Gove	12 min
Jun 21, 6:36 PM CDT	Special Weather Statement	GLD	Gove	39 min

Nearby

Severe Thunderstorm Warnings in Kansas, 2017 Every severe thunderstorm warning in 2017

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.