Alert archive / Kansas / Severe Thunderstorm Watches in 2007

Severe Thunderstorm Watch 294

May 23, 200728 counties in Kansas

The Storm Prediction Center issued this severe thunderstorm watch at May 23, 2007, 7:48 PM CDT for 28 counties in Kansas. It was in force for 7 hr.

The area

The outline as issued.

The facts

Issued
May 23, 2007, 7:48 PM CDT (00:48 UTC)
Expired
May 24, 2007, 2:47 AM CDT
In force
7 hr
Issued by
the Storm Prediction Center
Largest hail expected
2.5 in
Strongest gust expected
60 kt
All 28 counties

Barton County, KS, Butler County, KS, Chase County, KS, Clay County, KS, Cloud County, KS, Dickinson County, KS, Ellsworth County, KS, Geary County, KS, Greenwood County, KS, Harper County, KS, Harvey County, KS, Kingman County, KS, Lincoln County, KS, Lyon County, KS, Marion County, KS, Marshall County, KS, McPherson County, KS, Morris County, KS, Ottawa County, KS, Pottawatomie County, KS, Reno County, KS, Rice County, KS, Riley County, KS, Russell County, KS, Saline County, KS, Sedgwick County, KS, Wabaunsee County, KS, Washington County, KS

The radar

The Wichita radar (KICT), 114 km from the middle of the area, began a volume at 00:52 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
10%
Ten or more severe wind reports
30%
One or more gusts of 65 knots or more
30%
Ten or more severe hail reports
80%
One or more hailstones of 2 inches or more
50%
Six or more combined severe hail and wind reports
95%

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
May 23, 7:57 PM CDTSevere Thunderstorm WarningTOPMorris48 min
May 23, 8:12 PM CDTSevere Thunderstorm WarningICTMcPherson, Reno, Rice63 min
May 23, 8:14 PM CDTSevere Thunderstorm WarningICTChase61 min
May 23, 8:32 PM CDTSevere Thunderstorm WarningICTMarion58 min
May 23, 9:09 PM CDTSevere Thunderstorm WarningTOPMorris51 min
May 23, 9:11 PM CDTSevere Thunderstorm WarningICTMcPherson64 min
May 23, 9:14 PM CDTFlash Flood WarningTOPMorris4 hr
May 23, 9:44 PM CDTSevere Thunderstorm WarningICTBarton42 min
May 23, 10:21 PM CDTFlash Flood WarningICTChase, Marion4 hr
May 23, 10:21 PM CDTFlash Flood WarningICTEllsworth, Harvey, McPherson, Marion, Reno, Rice and 1 more10 hr
May 23, 10:21 PM CDTFlash Flood WarningICTBarton, Chase, Ellsworth, Harvey, Lincoln, McPherson and 5 more4 hr
May 23, 10:27 PM CDTFlash Flood WarningTOPDickinson, Geary, Morris4 hr
May 23, 10:40 PM CDTSevere Thunderstorm WarningICTBarton, Ellsworth, Rice65 min
May 23, 11:27 PM CDTFlash Flood WarningTOPOttawa4 hr
May 24, 12:38 AM CDTSevere Thunderstorm WarningICTSaline33 min
May 24, 12:54 AM CDTFlash Flood WarningTOPClay4 hr
May 24, 1:28 AM CDTFlash Flood WarningTOPMarshall, Riley, Washington4 hr
May 24, 1:31 AM CDTSevere Thunderstorm WarningTOPClay, Dickinson, Geary, Riley44 min
May 24, 2:20 AM CDTFlash Flood WarningTOPDickinson, Geary4 hr
May 24, 2:27 AM CDTSevere Thunderstorm WarningICTHarper63 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 00:00Z, 0.8 hours before the alert went out and 197 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, Topeka, KS at 00:00Z on 2007-05-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1254 joules per kilogram.LCLLFCEL10008507005003002001001 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, Topeka, KS at 00:00Z on 2007-05-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 113 square meters per square second.193958Sfc1 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
1254 J/kg
Mixed-layer CIN
-14 J/kg
Mixed-layer LCL
1305 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
113 m²/s²
0-3 km storm-relative helicity
143 m²/s²
Significant tornado parameter
0.4
Supercell composite
3.4

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 23, 7:10 PM CDTMesoscale DiscussionSPCAtchison, Barton, Brown, Butler, Chase, Clay and 36 more35 min
May 23, 10:12 PM CDTMesoscale DiscussionSPCClark, Comanche, Edwards, Finney, Ford, Grant and 12 more63 min
May 23, 10:48 PM CDTTornado WatchSPCBarber, Clark, Comanche, Kiowa, Meade, Pratt and 1 more4 hr
May 23, 11:29 PM CDTMesoscale DiscussionSPCBarton, Butler, Chase, Clay, Cloud, Dickinson and 25 more91 min
May 24, 1:51 AM CDTMesoscale DiscussionSPCAtchison, Brown, Butler, Chase, Clay, Coffey and 28 more54 min
May 24, 2:06 AM CDTMesoscale DiscussionSPCBarber, Comanche, Harper, Kingman, Kiowa, Pratt and 1 more54 min
May 24, 2:41 AM CDTSevere Thunderstorm WatchSPCAnderson, Brown, Butler, Chase, Coffey, Cowley and 25 more3 hr
May 24, 5:19 AM CDTMesoscale DiscussionSPCAtchison, Brown, Butler, Chase, Coffey, Cowley and 16 more56 min

Nearby

Severe Thunderstorm Watches in Kansas, 2007Every 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.