Alert archive / Kansas / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 227, NWS Goodland, KS

June 29, 2018Greeley County, Kansas

NWS Goodland, KS issued this severe thunderstorm warning at Jun 29, 2018, 5:37 PM MDT for Greeley County, Kansas. It was in force for 53 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 29, 2018, 5:37 PM MDT (23:37 UTC)
Expired: Jun 29, 2018, 6:30 PM MDT
In force: 53 min
Issued by: NWS Goodland, KS
Area: Storm-based polygon
Hail: 0.88 in
Wind: 70.0 mph

County Greeley County, KS

The radar

The Goodland radar (KGLD), 99 km from the middle of the area, began a volume at 23:38 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

Dodge City, (KDDC), launched 12:00Z, 11.6 hours before the alert went out and 185 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: 464 J/kg
Mixed-layer CIN: -429 J/kg
Mixed-layer LCL: 2173 m above ground
0-6 km bulk shear: 17 kt
0-1 km storm-relative helicity: 200 m²/s²
0-3 km storm-relative helicity: 356 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.5

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 29, 1:49 PM MDT, 3 hours 48 minutes earlier.

Area forecast discussion, Jun 29, 1:49 PM MDT, 3 hours 48 minutes before

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Hazardous weather outlook, Jun 29, 7:45 AM MDT, 9 hours 52 minutes before

Hazardous Weather Outlook
National Weather Service Goodland KS
745 AM MDT Fri Jun 29 2018

COZ090>092-KSZ001>004-013>016-027>029-041-042-NEZ079>081-301345-
Yuma County-Kit Carson County-Cheyenne County-Cheyenne-Rawlins-
Decatur-Norton-Sherman-Thomas-Sheridan-Graham-Wallace-Logan-Gove-
Greeley-Wichita-Dundy-Hitchcock-Red Willow-
745 AM MDT Fri Jun 29 2018 /845 AM CDT Fri Jun 29 2018/

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

.DAY ONE...TODAY AND TONIGHT...

A Heat advisory is in effect for Norton and Graham counties this
afternoon.

Severe thunderstorms capable of producing 70 MPH wind gusts and
quarter to golf ball size hail be possible in northwest Kansas and
southwest Nebraska between 4 pm MDT this afternoon and 10 pm MDT this
evening. Locally heavy rainfall and isolated flash flooding will
also be possible.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY...

Isolated severe thunderstorms will be possible late Saturday evening
into Saturday night. Large hail will be the primary threat.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be required.

Vincent

In the hours before

Special weather statement, Jun 29, 4:44 PM MDT, 53 minutes before

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Special weather statement, Jun 29, 4:58 PM MDT, 39 minutes before

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Special weather statement, Jun 29, 5:02 PM MDT, 35 minutes before

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Special weather statement, Jun 29, 5:03 PM MDT, 34 minutes before

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Special weather statement, Jun 29, 5:18 PM MDT, 19 minutes before

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Special weather statement, Jun 29, 5:19 PM MDT, 18 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 29, 2:49 AM MDT	Heat Advisory	GLD	Graham, Norton	14 hr
Jun 29, 5:03 PM MDT	Special Weather Statement	GLD	Wallace	12 min
Jun 29, 5:19 PM MDT	Special Weather Statement	GLD	Wallace	26 min
Jun 29, 5:45 PM MDT	Severe Thunderstorm Warning	GLD	Sherman, Wallace	45 min
Jun 29, 3:56 PM MDT	Special Weather Statement	GLD	Cheyenne	19 min
Jun 29, 4:44 PM MDT	Special Weather Statement	GLD	Cheyenne	16 min
Jun 29, 4:58 PM MDT	Special Weather Statement	GLD	Cheyenne	17 min
Jun 29, 5:02 PM MDT	Special Weather Statement	GLD	Cheyenne	13 min
Jun 29, 5:18 PM MDT	Special Weather Statement	GLD	Cheyenne	27 min
Jun 29, 5:47 PM MDT	Special Weather Statement	GLD	Cheyenne	28 min

Nearby

Severe Thunderstorm Warnings in Kansas, 2018 Every severe thunderstorm warning in 2018

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.