Alert archive / Kansas / Tornado Watches in 2008

Tornado Watch 512

June 11, 200830 counties in Kansas; 17 counties in Missouri; 6 counties in Nebraska

The Storm Prediction Center issued this tornado watch at Jun 11, 2008, 9:46 PM CDT for 30 counties in Kansas; 17 counties in Missouri; 6 counties in Nebraska. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued
Jun 11, 2008, 9:46 PM CDT (02:46 UTC)
Expired
Jun 12, 2008, 3:00 AM CDT
In force
5 hr
Issued by
the Storm Prediction Center
All 53 counties

Atchison County, KS, Barton County, KS, Brown County, KS, Chase County, KS, Clay County, KS, Cloud County, KS, Dickinson County, KS, Doniphan County, KS, Douglas County, KS, Ellsworth County, KS, Geary County, KS, Jackson County, KS, Jefferson County, KS, Leavenworth County, KS, Lincoln County, KS, Lyon County, KS, Marion County, KS, Marshall County, KS, McPherson County, KS, Morris County, KS, Nemaha County, KS, Osage County, KS, Ottawa County, KS, Pottawatomie County, KS, Rice County, KS, Riley County, KS, Saline County, KS, Shawnee County, KS, Wabaunsee County, KS, Washington County, KS, Andrew County, MO, Atchison County, MO, Buchanan County, MO, Caldwell County, MO, Clinton County, MO, Daviess County, MO, DeKalb County, MO, Gentry County, MO, Grundy County, MO, Harrison County, MO, Holt County, MO, Mercer County, MO, Nodaway County, MO, Platte County, MO, Putnam County, MO, Sullivan County, MO, Worth County, MO, Gage County, NE, Johnson County, NE, Nemaha County, NE, Otoe County, NE, Pawnee County, NE, Richardson County, NE

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Jun 11, 10:08 PM CDTTornado WarningOAXJohnson, Nemaha, Otoe, Pawnee52 min
Jun 11, 10:09 PM CDTSevere Thunderstorm WarningICTMcPherson, Saline39 min
Jun 11, 10:13 PM CDTFlash Flood WarningOAXCass, Otoe3 hr
Jun 11, 10:17 PM CDTSevere Thunderstorm WarningTOPOttawa28 min
Jun 11, 10:18 PM CDTTornado WarningTOPDickinson, Geary, Riley42 min
Jun 11, 10:35 PM CDTSevere Thunderstorm WarningTOPClay, Dickinson40 min
Jun 11, 10:41 PM CDTTornado WarningTOPPottawatomie, Riley49 min
Jun 11, 10:43 PM CDTTornado WarningEAXAtchison32 min
Jun 11, 10:45 PM CDTTornado WarningTOPDickinson32 min
Jun 11, 10:55 PM CDTTornado WarningOAXNemaha20 min
Jun 11, 11:07 PM CDTSevere Thunderstorm WarningTOPGeary, Morris38 min
Jun 11, 11:11 PM CDTTornado WarningEAXAtchison19 min
Jun 11, 11:19 PM CDTTornado WarningTOPPottawatomie41 min
Jun 11, 11:38 PM CDTSevere Thunderstorm WarningTOPJackson, Pottawatomie, Shawnee, Wabaunsee52 min
Jun 11, 11:44 PM CDTFlash Flood WarningEAXAtchison6 hr
Jun 11, 11:45 PM CDTTornado WarningTOPJackson, Pottawatomie, Shawnee, Wabaunsee30 min
Jun 11, 11:50 PM CDTTornado WarningTOPJackson, Nemaha37 min
Jun 12, 12:10 AM CDTTornado WarningEAXAtchison, Doniphan50 min
Jun 12, 12:12 AM CDTTornado WarningTOPBrown, Jackson48 min
Jun 12, 12:41 AM CDTSevere Thunderstorm WarningTOPJackson, Jefferson, Shawnee49 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, 2.8 hours before the alert went out and 78 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 2008-06-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2416 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 2008-06-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 150 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
2416 J/kg
Mixed-layer CIN
-60 J/kg
Mixed-layer LCL
1226 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
150 m²/s²
0-3 km storm-relative helicity
333 m²/s²
Significant tornado parameter
2.6
Supercell composite
15.9

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 11, 7:18 PM CDTMesoscale DiscussionSPCBarton, Brown, Clay, Cloud, Dickinson, Edwards and 23 more87 min
Jun 11, 8:57 PM CDTMesoscale DiscussionSPCAtchison, Barton, Brown, Chase, Clay, Cloud and 29 more93 min
Jun 11, 11:41 PM CDTMesoscale DiscussionSPCAtchison, Brown, Clay, Doniphan, Jackson, Jefferson and 7 more2 hr
Jun 12, 2:26 PM CDTMesoscale DiscussionSPCAnderson, Chase, Coffey, Douglas, Franklin, Greenwood and 10 more2 hr
Jun 12, 3:06 PM CDTTornado WatchSPCAllen, Anderson, Atchison, Butler, Chase, Coffey and 26 more7 hr
Jun 12, 3:52 PM CDTMesoscale DiscussionSPCAtchison, Brown, Doniphan, Douglas, Jackson, Jefferson and 4 more113 min
Jun 12, 3:56 AM CDTMesoscale DiscussionSPCMercer, Putnam94 min
Jun 12, 12:37 PM CDTMesoscale DiscussionSPCAdair, Audrain, Boone, Caldwell, Carroll, Chariton and 20 more113 min
Jun 12, 1:04 PM CDTTornado WatchSPCClark, Scotland7 hr

Nearby

Tornado Watches in Kansas, 2008Tornado Watches in Missouri, 2008Tornado Watches in Nebraska, 2008Every tornado watch in 2008

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.