Alert archive / Kansas / Severe Thunderstorm Watches in 2007

Severe Thunderstorm Watch 707

October 17, 200727 counties in Kansas; Beaver County, Texas County, Oklahoma; 9 counties in Texas

The Storm Prediction Center issued this severe thunderstorm watch at Oct 17, 2007, 1:44 AM CDT for 27 counties in Kansas; Beaver County, Texas County, Oklahoma; 9 counties in Texas. It was in force for 7 hr.

The area

The outline as issued.

The facts

Issued: Oct 17, 2007, 1:44 AM CDT (06:44 UTC)
Expired: Oct 17, 2007, 9:00 AM CDT
In force: 7 hr
Issued by: the Storm Prediction Center
Largest hail expected: 2.5 in
Strongest gust expected: 50 kt

All 38 counties

Barber County, KS, Clark County, KS, Comanche County, KS, Edwards County, KS, Ellis 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, Lane County, KS, Meade County, KS, Morton County, KS, Ness County, KS, Pawnee County, KS, Pratt County, KS, Rush County, KS, Scott County, KS, Seward County, KS, Stafford County, KS, Stanton County, KS, Stevens County, KS, Trego County, KS, Beaver County, OK, Texas County, OK, Hansford 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), 67 km from the middle of the area, began a volume at 06:44 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: 5%
One or more EF2 to EF5 tornadoes: 2%
Ten or more severe wind reports: 5%
One or more gusts of 65 knots or more: 5%
Ten or more severe hail reports: 40%
One or more hailstones of 2 inches or more: 40%
Six or more combined severe hail and wind reports: 70%

Warnings issued inside it

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

Issued	Product	Office	Counties	Lasted
Oct 17, 2:03 AM CDT	Severe Thunderstorm Warning	AMA	Carson, Gray, Roberts	41 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 00:00Z, 6.7 hours before the alert went out and 73 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: 2691 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 68 m²/s²
0-3 km storm-relative helicity: 122 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
Oct 17, 1:12 AM CDT	Mesoscale Discussion	SPC	Barber, Clark, Comanche, Edwards, Finney, Ford and 13 more	93 min
Oct 17, 4:07 AM CDT	Mesoscale Discussion	SPC	Allen, Anderson, Atchison, Bourbon, Brown, Butler and 52 more	113 min
Oct 17, 6:50 AM CDT	Mesoscale Discussion	SPC	Clark, Comanche, Edwards, Ford, Gray, Hodgeman and 9 more	100 min
Oct 17, 10:24 AM CDT	Mesoscale Discussion	SPC	Allen, Anderson, Bourbon, Butler, Chase, Chautauqua and 25 more	96 min
Oct 17, 10:43 AM CDT	Tornado Watch	SPC	Allen, Anderson, Bourbon, Chautauqua, Cherokee, Coffey and 8 more	7 hr
Oct 17, 12:58 PM CDT	Mesoscale Discussion	SPC	Barber, Barton, Clark, Comanche, Edwards, Ellis and 16 more	92 min
Oct 17, 2:25 PM CDT	Tornado Watch	SPC	Barber, Chautauqua, Cowley, Elk, Harper, Kingman and 4 more	8 hr
Oct 17, 2:59 PM CDT	Severe Thunderstorm Watch	SPC	Barton, Cloud, Decatur, Edwards, Ellis, Ellsworth and 21 more	7 hr
Oct 17, 5:30 PM CDT	Tornado Watch	SPC	Bourbon, Cherokee, Crawford	6 hr
Oct 17, 5:44 PM CDT	Mesoscale Discussion	SPC	Barton, Cloud, Decatur, Edwards, Ellis, Ellsworth and 22 more	61 min
Oct 17, 6:23 PM CDT	Mesoscale Discussion	SPC	Allen, Anderson, Bourbon, Butler, Chase, Chautauqua and 32 more	37 min
Oct 16, 10:36 PM CDT	Mesoscale Discussion	SPC	Beckham, Greer, Harmon, Jackson, Roger Mills	114 min
Oct 17, 1:36 AM CDT	Tornado Watch	SPC	Beckham, Custer, Dewey, Ellis, Greer, Harmon and 7 more	7 hr
Oct 17, 6:07 AM CDT	Mesoscale Discussion	SPC	Beckham, Custer, Dewey, Ellis, Greer, Harmon and 7 more	113 min
Oct 17, 7:43 AM CDT	Tornado Watch	SPC	Blaine, Caddo, Canadian, Carter, Cleveland, Comanche and 33 more	7 hr
Oct 17, 1:20 PM CDT	Mesoscale Discussion	SPC	Atoka, Bryan, Cherokee, Choctaw, Coal, Creek and 25 more	85 min
Oct 17, 4:31 PM CDT	Tornado Watch	SPC	Adair, Cherokee, Craig, Delaware, Haskell, LeFlore and 9 more	7 hr
Oct 16, 11:45 PM CDT	Severe Thunderstorm Watch	SPC	Armstrong, Carson, Collingsworth, Donley, Gray, Hansford and 10 more	2 hr
Oct 17, 4:41 AM CDT	Mesoscale Discussion	SPC	Archer, Baylor, Borden, Brown, Callahan, Coke and 32 more	2 hr
Oct 17, 9:36 AM CDT	Mesoscale Discussion	SPC	Jasper, Jefferson, Newton, Orange, Panola, Sabine and 2 more	114 min
Oct 17, 11:13 AM CDT	Tornado Watch	SPC	Angelina, Bowie, Camp, Cass, Cherokee, Franklin and 21 more	7 hr
Oct 17, 2:36 PM CDT	Mesoscale Discussion	SPC	Angelina, Bowie, Camp, Cass, Cherokee, Franklin and 22 more	114 min

Nearby

Severe Thunderstorm Watches in Kansas, 2007 Severe Thunderstorm Watches in Texas, 2007 Severe Thunderstorm Watches in Oklahoma, 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.