Alert archive / Kansas / Severe Thunderstorm Watches in 2018

Severe Thunderstorm Watch 206

June 23, 201810 counties in Colorado; 17 counties in Kansas

The Storm Prediction Center issued this severe thunderstorm watch at Jun 23, 2018, 2:20 PM MDT for 10 counties in Colorado; 17 counties in Kansas. It was in force for 7 hr.

The area

The outline as issued.

The facts

Issued: Jun 23, 2018, 2:20 PM MDT (20:20 UTC)
Expired: Jun 23, 2018, 9:00 PM MDT
In force: 7 hr
Issued by: the Storm Prediction Center
Largest hail expected: 2 in
Strongest gust expected: 60 kt

All 27 counties

Baca County, CO, Bent County, CO, Cheyenne County, CO, Crowley County, CO, Kiowa County, CO, Kit Carson County, CO, Las Animas County, CO, Lincoln County, CO, Otero County, CO, Prowers County, CO, Finney County, KS, Grant County, KS, Gray County, KS, Greeley County, KS, Hamilton County, KS, Haskell County, KS, Kearny County, KS, Lane County, KS, Logan County, KS, Morton County, KS, Scott County, KS, Sherman County, KS, Stanton County, KS, Stevens County, KS, Thomas County, KS, Wallace County, KS, Wichita County, KS

The radar

The Goodland radar (KGLD), 128 km from the middle of the area, began a volume at 20:20 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.

What SPC expected

The probabilities SPC published with the watch, for the watch area over its life.

Two or more tornadoes: 10%
One or more EF2 to EF5 tornadoes: 2%
Ten or more severe wind reports: 50%
One or more gusts of 65 knots or more: 20%
Ten or more severe hail reports: 50%
One or more hailstones of 2 inches or more: 30%
Six or more combined severe hail and wind reports: 80%

Warnings issued inside it

29 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

Issued	Product	Office	Counties	Lasted
Jun 23, 2:34 PM MDT	Severe Thunderstorm Warning	GLD	Sheridan, Thomas	41 min
Jun 23, 2:43 PM MDT	Severe Thunderstorm Warning	BOU	Elbert, Lincoln	47 min
Jun 23, 2:51 PM MDT	Severe Thunderstorm Warning	GLD	Kit Carson	39 min
Jun 23, 3:10 PM MDT	Severe Thunderstorm Warning	GLD	Sheridan, Thomas	50 min
Jun 23, 3:25 PM MDT	Severe Thunderstorm Warning	GLD	Sherman	50 min
Jun 23, 3:29 PM MDT	Severe Thunderstorm Warning	GLD	Kit Carson	46 min
Jun 23, 3:30 PM MDT	Severe Thunderstorm Warning	BOU	Lincoln	45 min
Jun 23, 3:58 PM MDT	Severe Thunderstorm Warning	GLD	Gove, Sheridan, Thomas	47 min
Jun 23, 4:12 PM MDT	Severe Thunderstorm Warning	GLD	Sherman, Wallace	48 min
Jun 23, 4:14 PM MDT	Severe Thunderstorm Warning	GLD	Kit Carson	46 min
Jun 23, 4:15 PM MDT	Severe Thunderstorm Warning	BOU	Lincoln	34 min
Jun 23, 4:26 PM MDT	Severe Thunderstorm Warning	GLD	Cheyenne	49 min
Jun 23, 4:44 PM MDT	Severe Thunderstorm Warning	GLD	Gove, Graham, Sheridan, Thomas	46 min
Jun 23, 5:02 PM MDT	Severe Thunderstorm Warning	GLD	Logan, Wallace	28 min
Jun 23, 5:08 PM MDT	Severe Thunderstorm Warning	GLD	Cheyenne, Kit Carson	37 min
Jun 23, 5:08 PM MDT	Flash Flood Warning	GLD	Sheridan, Thomas	3 hr
Jun 23, 5:11 PM MDT	Severe Thunderstorm Warning	BOU	Elbert, Lincoln	49 min
Jun 23, 5:16 PM MDT	Severe Thunderstorm Warning	GLD	Cheyenne	29 min
Jun 23, 5:20 PM MDT	Severe Thunderstorm Warning	PUB	Kiowa	40 min
Jun 23, 5:38 PM MDT	Severe Thunderstorm Warning	GLD	Cheyenne	52 min
Jun 23, 5:41 PM MDT	Severe Thunderstorm Warning	GLD	Cheyenne	49 min
Jun 23, 5:50 PM MDT	Severe Thunderstorm Warning	GLD	Greeley, Logan, Wallace, Wichita	40 min
Jun 23, 5:56 PM MDT	Severe Thunderstorm Warning	BOU	Lincoln	34 min
Jun 23, 6:03 PM MDT	Severe Thunderstorm Warning	PUB	Kiowa	42 min
Jun 23, 6:15 PM MDT	Severe Thunderstorm Warning	PUB	Bent, Kiowa	33 min
Jun 23, 6:28 PM MDT	Severe Thunderstorm Warning	GLD	Greeley, Wichita	47 min
Jun 23, 7:41 PM MDT	Severe Thunderstorm Warning	DDC	Scott	49 min
Jun 23, 8:05 PM MDT	Severe Thunderstorm Warning	DDC	Finney, Gray, Hamilton, Kearny, Lane, Scott	55 min
Jun 23, 8:55 PM MDT	Severe Thunderstorm Warning	DDC	Finney, Ford, Gray, Haskell, Hodgeman, Lane and 1 more	50 min

Discussions around it

SPC mesoscale discussions over the same counties from four hours before the watch to its end.

The nearest sounding before it

Denver, CO (KDEN), launched 12:00Z, 8.3 hours before the alert went out and 184 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: 2043 m above ground
0-6 km bulk shear: 48 kt
0-1 km storm-relative helicity: 74 m²/s²
0-3 km storm-relative helicity: 190 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 23, 1:36 PM MDT	Mesoscale Discussion	SPC	Baca, Bent, Cheyenne, Crowley, Elbert, Kiowa and 4 more	114 min
Jun 23, 5:37 PM MDT	Mesoscale Discussion	SPC	Baca, Bent, Cheyenne, Crowley, Kiowa, Las Animas and 3 more	113 min
Jun 22, 6:12 PM MDT	Mesoscale Discussion	SPC	Barber, Barton, Butler, Chase, Clark, Comanche and 20 more	2 hr
Jun 22, 8:07 PM MDT	Mesoscale Discussion	SPC	Barber, Chautauqua, Comanche, Cowley, Elk, Harper and 3 more	113 min

Nearby

Severe Thunderstorm Watches in Kansas, 2018 Severe Thunderstorm Watches in Colorado, 2018 Every severe thunderstorm watch 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.