Alert archive / Kansas / Severe Thunderstorm Watches in 2005

Severe Thunderstorm Watch 261

May 12, 200520 counties in Kansas; 16 counties in Oklahoma; 10 counties in Texas

The Storm Prediction Center issued this severe thunderstorm watch at May 12, 2005, 5:55 PM CDT for 20 counties in Kansas; 16 counties in Oklahoma; 10 counties in Texas. It was in force for 7 hr.

The area

The outline as issued.

The facts

Issued: May 12, 2005, 5:55 PM CDT (22:55 UTC)
Expired: May 13, 2005, 1:00 AM CDT
In force: 7 hr
Issued by: the Storm Prediction Center

All 46 counties

Barber County, KS, Butler County, KS, Chase County, KS, Coffey County, KS, Comanche County, KS, Cowley County, KS, Greenwood County, KS, Harper County, KS, Harvey County, KS, Kingman County, KS, Kiowa County, KS, Lyon County, KS, Marion County, KS, McPherson County, KS, Pratt County, KS, Reno County, KS, Rice County, KS, Sedgwick County, KS, Stafford County, KS, Sumner County, KS, Alfalfa County, OK, Beckham County, OK, Blaine County, OK, Custer County, OK, Dewey County, OK, Ellis County, OK, Garfield County, OK, Grant County, OK, Greer County, OK, Harper County, OK, Kay County, OK, Major County, OK, Roger Mills County, OK, Washita County, OK, Woods County, OK, Woodward County, OK, Armstrong County, TX, Carson County, TX, Collingsworth County, TX, Donley County, TX, Gray County, TX, Hemphill County, TX, Lipscomb County, TX, Randall County, TX, Roberts County, TX, Wheeler County, TX

The radar

The Vance AFB radar (KVNX), 122 km from the middle of the area, began a volume at 22:56 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.

Warnings issued inside it

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

Issued	Product	Office	Counties	Lasted
May 12, 5:59 PM CDT	Severe Thunderstorm Warning	OUN	Alfalfa	16 min
May 12, 6:07 PM CDT	Severe Thunderstorm Warning	ICT	Harper	25 min
May 12, 6:18 PM CDT	Severe Thunderstorm Warning	AMA	Carson	57 min
May 12, 6:26 PM CDT	Tornado Warning	AMA	Randall	34 min
May 12, 7:00 PM CDT	Severe Thunderstorm Warning	AMA	Randall	30 min
May 12, 7:21 PM CDT	Severe Thunderstorm Warning	AMA	Lipscomb	33 min
May 12, 7:34 PM CDT	Severe Thunderstorm Warning	AMA	Carson	33 min
May 12, 7:41 PM CDT	Severe Thunderstorm Warning	AMA	Donley	72 min
May 12, 9:15 PM CDT	Severe Thunderstorm Warning	AMA	Armstrong	35 min
May 12, 10:38 PM CDT	Flash Flood Warning	TOP	Lyon, Osage	6 hr
May 12, 10:38 PM CDT	Severe Thunderstorm Warning	OUN	Greer, Harmon	37 min
May 12, 10:50 PM CDT	Severe Thunderstorm Warning	OUN	Beckham	25 min
May 12, 11:08 PM CDT	Severe Thunderstorm Warning	OUN	Beckham, Greer, Harmon, Jackson, Kiowa, Washita	67 min
May 12, 11:36 PM CDT	Flash Flood Warning	ICT	Marion	6 hr
May 12, 11:40 PM CDT	Severe Thunderstorm Warning	OUN	Custer	35 min
May 13, 12:01 AM CDT	Severe Thunderstorm Warning	OUN	Blaine, Caddo, Canadian	44 min
May 13, 12:27 AM CDT	Severe Thunderstorm Warning	OUN	Dewey	26 min
May 13, 12:42 AM CDT	Severe Thunderstorm Warning	OUN	Blaine, Canadian, Kingfisher	33 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, 10.9 hours before the alert went out and 164 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: 640 m above ground
0-6 km bulk shear: 60 kt
0-1 km storm-relative helicity: 87 m²/s²
0-3 km storm-relative helicity: 195 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 11, 8:01 PM CDT	Mesoscale Discussion	SPC	Cheyenne, Clark, Decatur, Finney, Ford, Gove and 24 more	59 min
May 11, 9:26 PM CDT	Mesoscale Discussion	SPC	Decatur, Ellis, Finney, Gove, Graham, Grant and 15 more	64 min
May 11, 9:50 PM CDT	Tornado Watch	SPC	Clark, Decatur, Edwards, Ellis, Finney, Ford and 28 more	7 hr
May 11, 11:02 PM CDT	Mesoscale Discussion	SPC	Brown, Marshall, Nemaha	58 min
May 12, 3:44 AM CDT	Mesoscale Discussion	SPC	Clay, Cloud, Jewell, Marshall, Mitchell, Republic and 1 more	61 min
May 12, 12:40 PM CDT	Mesoscale Discussion	SPC	Atchison, Brown, Doniphan, Jackson, Jefferson, Marshall and 3 more	95 min
May 12, 1:16 PM CDT	Mesoscale Discussion	SPC	Barber, Barton, Clark, Cloud, Comanche, Edwards and 21 more	59 min
May 12, 1:35 PM CDT	Severe Thunderstorm Watch	SPC	Barber, Barton, Clark, Clay, Cloud, Comanche and 29 more	7 hr
May 12, 1:55 PM CDT	Tornado Watch	SPC	Atchison, Brown, Doniphan, Douglas, Jackson, Jefferson and 10 more	7 hr
May 12, 3:13 PM CDT	Mesoscale Discussion	SPC	Barber, Barton, Clay, Cloud, Comanche, Dickinson and 28 more	92 min
May 12, 3:48 PM CDT	Mesoscale Discussion	SPC	Atchison, Brown, Doniphan, Douglas, Jackson, Jefferson and 10 more	87 min
May 12, 5:18 PM CDT	Mesoscale Discussion	SPC	Barber, Butler, Cowley, Harper, Harvey, Kingman and 2 more	57 min
May 11, 9:34 PM CDT	Mesoscale Discussion	SPC	Beaver, Beckham, Ellis, Greer, Harmon, Harper and 3 more	26 min
May 12, 9:34 AM CDT	Mesoscale Discussion	SPC	Beaver, Ellis	116 min
May 12, 11:30 AM CDT	Severe Thunderstorm Watch	SPC	Beaver, Ellis, Harper, Woodward	8 hr
May 12, 2:22 PM CDT	Mesoscale Discussion	SPC	Beaver, Ellis, Harper, Woodward	53 min
May 12, 2:55 PM CDT	Tornado Watch	SPC	Beckham, Greer, Harmon, Jackson	6 hr
May 12, 6:07 PM CDT	Mesoscale Discussion	SPC	Beckham, Greer, Harmon, Jackson	53 min
May 11, 8:31 PM CDT	Mesoscale Discussion	SPC	Andrews, Armstrong, Borden, Briscoe, Carson, Crane and 22 more	89 min
May 12, 4:08 PM CDT	Mesoscale Discussion	SPC	Andrews, Borden, Crane, Dawson, Ector, Gaines and 11 more	2 hr

Nearby

Severe Thunderstorm Watches in Kansas, 2005 Severe Thunderstorm Watches in Oklahoma, 2005 Severe Thunderstorm Watches in Texas, 2005 Every severe thunderstorm watch in 2005

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.