Alert archive / Kansas / Severe Thunderstorm Watches in 2007

Severe Thunderstorm Watch 290

May 23, 20074 states

The Storm Prediction Center issued this severe thunderstorm watch at May 23, 2007, 1:27 PM CDT for 4 states. It was in force for 7 hr.

The area

The outline as issued.

The facts

Issued: May 23, 2007, 1:27 PM CDT (18:27 UTC)
Expired: May 23, 2007, 8:00 PM CDT
In force: 7 hr
Issued by: the Storm Prediction Center
Largest hail expected: 2 in
Strongest gust expected: 60 kt

All 42 counties

Fremont County, IA, Mills County, IA, Montgomery County, IA, Page County, IA, Barber County, KS, Barton County, KS, Brown County, KS, Clay County, KS, Comanche County, KS, Dickinson County, KS, Ellsworth County, KS, Geary County, KS, Harper County, KS, Harvey County, KS, Jackson County, KS, Kingman County, KS, Kiowa County, KS, Lincoln County, KS, Marion County, KS, Marshall County, KS, McPherson County, KS, Morris County, KS, Nemaha County, KS, Ottawa County, KS, Pottawatomie County, KS, Pratt County, KS, Reno County, KS, Rice County, KS, Riley County, KS, Russell County, KS, Saline County, KS, Sedgwick County, KS, Stafford County, KS, Wabaunsee County, KS, Atchison County, MO, Holt County, MO, Nodaway County, MO, Johnson County, NE, Nemaha County, NE, Otoe County, NE, Pawnee County, NE, Richardson County, NE

The radar

The Topeka radar (KTWX), 96 km from the middle of the area, began a volume at 18:28 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: 30%
One or more gusts of 65 knots or more: 30%
Ten or more severe hail reports: 30%
One or more hailstones of 2 inches or more: 20%
Six or more combined severe hail and wind reports: 70%

Warnings issued inside it

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

Issued	Product	Office	Counties	Lasted
May 23, 1:35 PM CDT	Severe Thunderstorm Warning	TOP	Clay, Riley	55 min
May 23, 1:57 PM CDT	Severe Thunderstorm Warning	ICT	Reno	63 min
May 23, 2:06 PM CDT	Severe Thunderstorm Warning	TOP	Pottawatomie, Riley	39 min
May 23, 2:14 PM CDT	Severe Thunderstorm Warning	ICT	Kingman	46 min
May 23, 2:18 PM CDT	Severe Thunderstorm Warning	ICT	McPherson, Rice	57 min
May 23, 2:23 PM CDT	Severe Thunderstorm Warning	TOP	Marshall	52 min
May 23, 2:31 PM CDT	Severe Thunderstorm Warning	OAX	Fremont	29 min
May 23, 2:46 PM CDT	Severe Thunderstorm Warning	TOP	Pottawatomie	33 min
May 23, 2:51 PM CDT	Severe Thunderstorm Warning	ICT	Reno	69 min
May 23, 2:53 PM CDT	Severe Thunderstorm Warning	OAX	Montgomery, Page	52 min
May 23, 2:54 PM CDT	Severe Thunderstorm Warning	ICT	Saline	66 min
May 23, 2:55 PM CDT	Severe Thunderstorm Warning	DDC	Barber	33 min
May 23, 3:02 PM CDT	Severe Thunderstorm Warning	TOP	Dickinson	43 min
May 23, 3:10 PM CDT	Severe Thunderstorm Warning	ICT	McPherson, Rice	65 min
May 23, 3:13 PM CDT	Severe Thunderstorm Warning	TOP	Nemaha	47 min
May 23, 3:18 PM CDT	Severe Thunderstorm Warning	OAX	Nemaha	27 min
May 23, 3:42 PM CDT	Tornado Warning	ICT	Reno	31 min
May 23, 3:44 PM CDT	Severe Thunderstorm Warning	OAX	Montgomery	31 min
May 23, 3:45 PM CDT	Severe Thunderstorm Warning	TOP	Dickinson, Geary, Morris	45 min
May 23, 4:11 PM CDT	Severe Thunderstorm Warning	ICT	Harvey, McPherson, Reno	64 min
May 23, 4:23 PM CDT	Severe Thunderstorm Warning	DDC	Pratt	37 min
May 23, 4:26 PM CDT	Severe Thunderstorm Warning	ICT	Reno	64 min
May 23, 4:55 PM CDT	Flash Flood Warning	ICT	Reno	6 hr
May 23, 4:57 PM CDT	Severe Thunderstorm Warning	DDC	Pratt	33 min
May 23, 5:09 PM CDT	Severe Thunderstorm Warning	ICT	Reno	27 min
May 23, 5:13 PM CDT	Severe Thunderstorm Warning	ICT	Harvey, McPherson, Marion, Reno	62 min
May 23, 5:28 PM CDT	Severe Thunderstorm Warning	ICT	Reno	30 min
May 23, 5:43 PM CDT	Severe Thunderstorm Warning	OAX	Richardson	47 min
May 23, 6:04 PM CDT	Severe Thunderstorm Warning	DDC	Edwards, Kiowa	56 min
May 23, 6:12 PM CDT	Severe Thunderstorm Warning	ICT	Harvey, McPherson, Marion, Reno, Rice	63 min
May 23, 6:13 PM CDT	Severe Thunderstorm Warning	EAX	Nodaway	47 min
May 23, 6:50 PM CDT	Severe Thunderstorm Warning	EAX	Nodaway	25 min
May 23, 6:59 PM CDT	Severe Thunderstorm Warning	OAX	Otoe	46 min
May 23, 7:02 PM CDT	Severe Thunderstorm Warning	TOP	Dickinson, Morris	58 min
May 23, 7:12 PM CDT	Severe Thunderstorm Warning	ICT	Chase, Marion	63 min
May 23, 7:20 PM CDT	Flash Flood Warning	ICT	Harvey, McPherson	6 hr
May 23, 7:33 PM CDT	Severe Thunderstorm Warning	ICT	Russell	42 min
May 23, 7:54 PM CDT	Severe Thunderstorm Warning	DDC	Edwards, Kiowa	51 min
May 23, 7:57 PM CDT	Severe Thunderstorm Warning	TOP	Morris	48 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

Topeka, KS (KTOP), launched 12:00Z, 6.5 hours before the alert went out and 147 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: 586 J/kg
Mixed-layer CIN: -68 J/kg
Mixed-layer LCL: 611 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 244 m²/s²
0-3 km storm-relative helicity: 235 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 4.6

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 23, 12:30 PM CDT	Mesoscale Discussion	SPC	Adair, Allamakee, Audubon, Benton, Black Hawk, Boone and 45 more	3 hr
May 23, 2:58 PM CDT	Severe Thunderstorm Watch	SPC	Chickasaw, Floyd, Howard, Mitchell	6 hr
May 23, 3:11 PM CDT	Mesoscale Discussion	SPC	Fremont, Page	94 min
May 23, 3:11 PM CDT	Severe Thunderstorm Watch	SPC	Adair, Adams, Appanoose, Audubon, Black Hawk, Boone and 43 more	6 hr
May 23, 5:19 PM CDT	Mesoscale Discussion	SPC	Fremont, Mills, Montgomery, Page, Pottawattamie	86 min
May 23, 5:24 PM CDT	Mesoscale Discussion	SPC	Adair, Adams, Audubon, Boone, Butler, Carroll and 24 more	2 hr
May 22, 9:41 PM CDT	Mesoscale Discussion	SPC	Ellis, Finney, Jewell, Ness, Osborne, Pawnee and 6 more	94 min
May 22, 10:49 PM CDT	Severe Thunderstorm Watch	SPC	Barton, Cloud, Ellis, Ellsworth, Jewell, Lincoln and 12 more	5 hr
May 23, 2:27 AM CDT	Mesoscale Discussion	SPC	Cloud, Ellsworth, Lincoln, Ottawa, Republic	93 min
May 23, 12:22 PM CDT	Mesoscale Discussion	SPC	Barber, Clay, Cloud, Comanche, Dickinson, Ellsworth and 13 more	83 min
May 23, 2:20 PM CDT	Mesoscale Discussion	SPC	Clark, Finney, Ford, Grant, Gray, Greeley and 12 more	55 min
May 23, 3:31 PM CDT	Tornado Watch PDS	SPC	Barber, Clark, Comanche, Edwards, Finney, Ford and 19 more	7 hr
May 23, 4:33 PM CDT	Mesoscale Discussion	SPC	Hamilton, Kearny, Morton, Stanton	2 hr
May 23, 6:06 PM CDT	Mesoscale Discussion	SPC	Clark, Comanche, Edwards, Finney, Ford, Grant and 12 more	84 min
May 22, 7:50 PM CDT	Mesoscale Discussion	SPC	Antelope, Boyd, Cedar, Garfield, Holt, Knox and 2 more	85 min

Nearby

Severe Thunderstorm Watches in Kansas, 2007 Severe Thunderstorm Watches in Nebraska, 2007 Severe Thunderstorm Watches in Iowa, 2007 Every severe thunderstorm watch in 2007

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.