Alert archive / Kansas / Severe Thunderstorm Watches in 2018

Severe Thunderstorm Watch 129

May 28, 201817 counties in Kansas; Beaver County, Cimarron County, Texas County, Oklahoma; 15 counties in Texas

The Storm Prediction Center issued this severe thunderstorm watch at May 28, 2018, 3:17 PM CDT for 17 counties in Kansas; Beaver County, Cimarron County, Texas County, Oklahoma; 15 counties in Texas. It was in force for 10 hr.

The area

The outline as issued.

The facts

Issued: May 28, 2018, 3:17 PM CDT (20:17 UTC)
Expired: May 29, 2018, 12:48 AM CDT
In force: 10 hr
Issued by: the Storm Prediction Center
Largest hail expected: 2.5 in
Strongest gust expected: 60 kt

All 35 counties

Clark County, KS, Edwards County, KS, Finney County, KS, Ford County, KS, Grant County, KS, Gray County, KS, Hamilton County, KS, Haskell County, KS, Hodgeman County, KS, Kearny County, KS, Kiowa County, KS, Meade County, KS, Morton County, KS, Pawnee County, KS, Seward County, KS, Stanton County, KS, Stevens County, KS, Beaver County, OK, Cimarron County, OK, Texas County, OK, Armstrong County, TX, Carson County, TX, Dallam County, TX, Gray County, TX, Hansford County, TX, Hartley County, TX, Hemphill County, TX, Hutchinson County, TX, Lipscomb County, TX, Moore County, TX, Ochiltree County, TX, Potter County, TX, Randall County, TX, Roberts County, TX, Sherman County, TX

The radar

The Dodge City radar (KDDC), 131 km from the middle of the area, began a volume at 20:17 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: 20%
One or more EF2 to EF5 tornadoes: 5%
Ten or more severe wind reports: 60%
One or more gusts of 65 knots or more: 20%
Ten or more severe hail reports: 80%
One or more hailstones of 2 inches or more: 70%
Six or more combined severe hail and wind reports: 95%

Warnings issued inside it

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

Issued	Product	Office	Counties	Lasted
May 28, 4:49 PM CDT	Severe Thunderstorm Warning	DDC	Finney, Lane, Scott	18 min
May 28, 5:02 PM CDT	Severe Thunderstorm Warning	DDC	Morton	43 min
May 28, 5:06 PM CDT	Severe Thunderstorm Warning	DDC	Grant, Hamilton, Kearny, Morton, Stanton	54 min
May 28, 5:27 PM CDT	Severe Thunderstorm Warning	DDC	Finney, Grant, Kearny, Stanton, Stevens	63 min
May 28, 5:30 PM CDT	Severe Thunderstorm Warning	AMA	Cimarron, Texas	60 min
May 28, 5:38 PM CDT	Severe Thunderstorm Warning	DDC	Morton, Stanton	67 min
May 28, 6:04 PM CDT	Severe Thunderstorm Warning	AMA	Beaver, Texas	24 min
May 28, 6:07 PM CDT	Severe Thunderstorm Warning	DDC	Finney, Lane, Scott	53 min
May 28, 6:12 PM CDT	Severe Thunderstorm Warning	DDC	Morton	63 min
May 28, 6:19 PM CDT	Severe Thunderstorm Warning	AMA	Texas	56 min
May 28, 6:22 PM CDT	Severe Thunderstorm Warning	DDC	Finney, Grant, Kearny	53 min
May 28, 6:22 PM CDT	Severe Thunderstorm Warning	AMA	Texas	53 min
May 28, 6:26 PM CDT	Severe Thunderstorm Warning	AMA	Dallam, Hartley, Moore, Sherman	64 min
May 28, 6:31 PM CDT	Severe Thunderstorm Warning	DDC	Grant, Stanton, Stevens	59 min
May 28, 6:42 PM CDT	Severe Thunderstorm Warning	DDC	Stanton	27 min
May 28, 6:45 PM CDT	Severe Thunderstorm Warning	DDC	Finney, Grant, Gray, Haskell, Kearny	60 min
May 28, 6:51 PM CDT	Severe Thunderstorm Warning	AMA	Texas	54 min
May 28, 6:54 PM CDT	Tornado Warning	DDC	Finney, Grant, Haskell, Kearny	36 min
May 28, 7:01 PM CDT	Severe Thunderstorm Warning	AMA	Texas	59 min
May 28, 7:05 PM CDT	Severe Thunderstorm Warning	DDC	Finney, Gray, Hodgeman, Lane, Ness, Scott	55 min
May 28, 7:14 PM CDT	Severe Thunderstorm Warning	DDC	Finney, Gray, Haskell	46 min
May 28, 7:15 PM CDT	Severe Thunderstorm Warning	AMA	Texas	60 min
May 28, 7:23 PM CDT	Severe Thunderstorm Warning	DDC	Grant, Kearny, Stevens	52 min
May 28, 7:24 PM CDT	Severe Thunderstorm Warning	AMA	Dallam, Hartley, Moore, Sherman	50 min
May 28, 7:28 PM CDT	Severe Thunderstorm Warning	AMA	Beaver, Texas	62 min
May 28, 7:36 PM CDT	Severe Thunderstorm Warning	AMA	Hutchinson, Moore, Oldham, Potter	39 min
May 28, 7:37 PM CDT	Severe Thunderstorm Warning	DDC	Ellis, Finney, Hodgeman, Lane, Ness, Pawnee and 3 more	53 min
May 28, 7:38 PM CDT	Tornado Warning	AMA	Texas	39 min
May 28, 7:51 PM CDT	Severe Thunderstorm Warning	DDC	Edwards, Finney, Ford, Gray, Haskell, Hodgeman and 3 more	54 min
May 28, 7:54 PM CDT	Severe Thunderstorm Warning	AMA	Carson, Potter, Randall	53 min
May 28, 7:59 PM CDT	Severe Thunderstorm Warning	AMA	Texas	61 min
May 28, 8:03 PM CDT	Tornado Warning	DDC	Hodgeman, Ness	12 min
May 28, 8:07 PM CDT	Severe Thunderstorm Warning	DDC	Finney, Grant, Haskell, Seward, Stevens	53 min
May 28, 8:11 PM CDT	Severe Thunderstorm Warning	AMA	Beaver, Texas	64 min
May 28, 8:22 PM CDT	Severe Thunderstorm Warning	DDC	Ness, Pawnee, Rush, Trego	29 min
May 28, 8:25 PM CDT	Severe Thunderstorm Warning	AMA	Hansford, Hutchinson, Moore	50 min
May 28, 8:27 PM CDT	Tornado Warning Tornado observed	AMA	Beaver, Texas	48 min
May 28, 8:32 PM CDT	Tornado Warning	AMA	Hansford, Sherman	43 min
May 28, 8:35 PM CDT	Severe Thunderstorm Warning	AMA	Carson, Hutchinson, Moore, Potter	55 min
May 28, 8:38 PM CDT	Severe Thunderstorm Warning	DDC	Edwards, Finney, Ford, Gray, Hodgeman, Pawnee	67 min
May 28, 8:50 PM CDT	Severe Thunderstorm Warning	DDC	Ellis, Ness, Pawnee, Rush, Trego	55 min
May 28, 9:12 PM CDT	Severe Thunderstorm Warning	AMA	Beaver, Texas	63 min
May 28, 9:13 PM CDT	Severe Thunderstorm Warning	AMA	Hansford, Hutchinson, Ochiltree	62 min
May 28, 10:11 PM CDT	Severe Thunderstorm Warning	AMA	Beaver, Texas	32 min
May 28, 10:13 PM CDT	Severe Thunderstorm Warning	AMA	Hansford, Lipscomb, Ochiltree, Roberts	62 min
May 28, 10:34 PM CDT	Tornado Warning	AMA	Ochiltree, Roberts	41 min
May 28, 10:42 PM CDT	Severe Thunderstorm Warning	AMA	Beaver	41 min
May 28, 11:06 PM CDT	Tornado Warning	AMA	Lipscomb, Ochiltree	20 min
May 28, 11:10 PM CDT	Severe Thunderstorm Warning	AMA	Lipscomb, Ochiltree	65 min
May 28, 11:49 PM CDT	Severe Thunderstorm Warning	AMA	Beaver	56 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

Dodge City, (KDDC), launched 12:00Z, 8.3 hours before the alert went out and 136 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: 2062 J/kg
Mixed-layer CIN: -155 J/kg
Mixed-layer LCL: 1158 m above ground
0-6 km bulk shear: 28 kt
0-1 km storm-relative helicity: 52 m²/s²
0-3 km storm-relative helicity: 63 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.4

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 28, 1:46 PM CDT	Mesoscale Discussion	SPC	Gove, Graham, Logan, Phillips, Rooks, Sheridan and 4 more	59 min
May 28, 2:12 PM CDT	Tornado Watch	SPC	Cheyenne, Decatur, Ellis, Gove, Graham, Greeley and 19 more	8 hr
May 28, 2:21 PM CDT	Mesoscale Discussion	SPC	Grant, Gray, Haskell, Kearny, Meade, Morton and 3 more	84 min
May 28, 5:54 PM CDT	Mesoscale Discussion	SPC	Cheyenne, Gove, Graham, Greeley, Logan, Phillips and 9 more	96 min
May 28, 6:10 PM CDT	Mesoscale Discussion	SPC	Clark, Edwards, Finney, Ford, Grant, Gray and 10 more	95 min

Nearby

Severe Thunderstorm Watches in Kansas, 2018 Severe Thunderstorm Watches in Texas, 2018 Severe Thunderstorm Watches in Oklahoma, 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.