Alert archive / Kansas / Tornado Watches in 2007

Tornado Watch 168

April 23, 200751 counties in Kansas; Alfalfa County, Grant County, Kay County, Oklahoma

The Storm Prediction Center issued this tornado watch at Apr 23, 2007, 6:35 PM CDT for 51 counties in Kansas; Alfalfa County, Grant County, Kay County, Oklahoma. It was in force for 4 hr.

The area

The outline as issued.

The facts

Issued
Apr 23, 2007, 6:35 PM CDT (23:35 UTC)
Expired
Apr 23, 2007, 11:01 PM CDT
In force
4 hr
Issued by
the Storm Prediction Center
Largest hail expected
3 in
Strongest gust expected
60 kt
All 54 counties

Barber County, KS, Barton County, KS, Butler County, KS, Cheyenne County, KS, Clark County, KS, Comanche County, KS, Cowley County, KS, Edwards County, KS, Ellis County, KS, Ellsworth County, KS, Finney County, KS, Ford County, KS, Gove County, KS, Graham County, KS, Grant County, KS, Gray County, KS, Greeley County, KS, Hamilton County, KS, Harper County, KS, Harvey County, KS, Haskell County, KS, Hodgeman County, KS, Kearny County, KS, Kingman County, KS, Kiowa County, KS, Lane County, KS, Logan County, KS, McPherson County, KS, Meade County, KS, Morton County, KS, Ness County, KS, Pawnee County, KS, Pratt County, KS, Rawlins County, KS, Reno County, KS, Rice County, KS, Rush County, KS, Russell County, KS, Scott County, KS, Sedgwick County, KS, Seward County, KS, Sheridan County, KS, Sherman County, KS, Stafford County, KS, Stanton County, KS, Stevens County, KS, Sumner County, KS, Thomas County, KS, Trego County, KS, Wallace County, KS, Wichita County, KS, Alfalfa County, OK, Grant County, OK, Kay County, OK

The radar

The Dodge City radar (KDDC), 89 km from the middle of the area, began a volume at 23:37 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
60%
One or more EF2 to EF5 tornadoes
40%
Ten or more severe wind reports
30%
One or more gusts of 65 knots or more
30%
Ten or more severe hail reports
70%
One or more hailstones of 2 inches or more
60%
Six or more combined severe hail and wind reports
90%

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Apr 23, 6:45 PM CDTSevere Thunderstorm WarningDDCStevens45 min
Apr 23, 6:58 PM CDTSevere Thunderstorm WarningDDCFord, Kiowa47 min
Apr 23, 7:24 PM CDTSevere Thunderstorm WarningGLDWallace66 min
Apr 23, 7:26 PM CDTTornado WarningGLDWallace34 min
Apr 23, 7:31 PM CDTSevere Thunderstorm WarningDDCClark, Comanche44 min
Apr 23, 7:32 PM CDTSevere Thunderstorm WarningDDCEdwards, Ford21 min
Apr 23, 7:36 PM CDTSevere Thunderstorm WarningDDCFord12 min
Apr 23, 7:38 PM CDTTornado WarningDDCClark, Comanche37 min
Apr 23, 7:51 PM CDTSevere Thunderstorm WarningDDCEdwards, Pawnee39 min
Apr 23, 7:57 PM CDTTornado WarningGLDSherman, Wallace63 min
Apr 23, 8:12 PM CDTTornado WarningDDCClark, Comanche33 min
Apr 23, 8:28 PM CDTTornado WarningGLDLogan, Sherman, Thomas, Wallace62 min
Apr 23, 8:39 PM CDTTornado WarningDDCComanche36 min
Apr 23, 9:05 PM CDTTornado WarningGLDSherman, Thomas55 min
Apr 23, 9:09 PM CDTTornado WarningDDCKiowa36 min
Apr 23, 9:24 PM CDTSevere Thunderstorm WarningGLDSherman66 min
Apr 23, 9:51 PM CDTTornado WarningGLDSherman36 min
Apr 23, 10:02 PM CDTTornado WarningGLDRawlins, Thomas58 min
Apr 23, 10:15 PM CDTSevere Thunderstorm WarningGLDCheyenne60 min
Apr 23, 10:18 PM CDTTornado WarningGLDCheyenne42 min
Apr 23, 10:56 PM CDTTornado WarningGLDCheyenne49 min
Apr 23, 10:58 PM CDTTornado WarningGLDRawlins62 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, 11.6 hours before the alert went out and 89 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-pSkew-T log-p diagram, Dodge City, at 12:00Z on 2007-04-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Dodge City, at 12:00Z on 2007-04-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 275 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
1371 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
275 m²/s²
0-3 km storm-relative helicity
435 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.

IssuedProductOfficeCountiesLasted
Apr 23, 2:02 PM CDTMesoscale DiscussionSPCClark, Grant, Gray, Hamilton, Haskell, Kearny and 4 more103 min
Apr 23, 3:44 PM CDTTornado WatchSPCClark, Comanche, Edwards, Finney, Ford, Grant and 11 more6 hr
Apr 23, 6:15 PM CDTMesoscale DiscussionSPCBarber, Barton, Butler, Chautauqua, Cherokee, Cowley and 28 more2 hr

Nearby

Tornado Watches in Kansas, 2007Tornado Watches in Oklahoma, 2007Every tornado 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.