Alert archive / Missouri / Tornado Watches in 2006

Tornado Watch 159

April 6, 20065 counties in Kansas; 39 counties in Missouri

The Storm Prediction Center issued this tornado watch at Apr 6, 2006, 5:54 PM CDT for 5 counties in Kansas; 39 counties in Missouri. It was in force for 7 hr.

The area

The outline as issued.

The facts

Issued
Apr 6, 2006, 5:54 PM CDT (22:54 UTC)
Expired
Apr 7, 2006, 12:38 AM CDT
In force
7 hr
Issued by
the Storm Prediction Center
All 44 counties

Bourbon County, KS, Cherokee County, KS, Crawford County, KS, Linn County, KS, Miami County, KS, Barry County, MO, Barton County, MO, Bates County, MO, Benton County, MO, Camden County, MO, Cass County, MO, Cedar County, MO, Christian County, MO, Dade County, MO, Dallas County, MO, Dent County, MO, Douglas County, MO, Greene County, MO, Henry County, MO, Hickory County, MO, Howell County, MO, Jasper County, MO, Johnson County, MO, Laclede County, MO, Lawrence County, MO, Maries County, MO, McDonald County, MO, Miller County, MO, Morgan County, MO, Newton County, MO, Oregon County, MO, Ozark County, MO, Pettis County, MO, Phelps County, MO, Polk County, MO, Pulaski County, MO, Shannon County, MO, St. Clair County, MO, Stone County, MO, Taney County, MO, Texas County, MO, Vernon County, MO, Webster County, MO, Wright County, MO

The radar

The Springfield radar (KSGF), 70 km from the middle of the area, began a volume at 22:55 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.

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Apr 6, 5:56 PM CDTSevere Thunderstorm WarningSGFChristian41 min
Apr 6, 6:23 PM CDTSevere Thunderstorm WarningSGFWebster33 min
Apr 6, 6:29 PM CDTTornado WarningSGFCrawford22 min
Apr 6, 6:35 PM CDTTornado WarningSGFBourbon55 min
Apr 6, 6:41 PM CDTSevere Thunderstorm WarningSGFWright34 min
Apr 6, 7:02 PM CDTSevere Thunderstorm WarningSGFLaclede28 min
Apr 6, 7:14 PM CDTTornado WarningSGFCherokee44 min
Apr 6, 7:32 PM CDTSevere Thunderstorm WarningSGFBourbon28 min
Apr 6, 7:36 PM CDTSevere Thunderstorm WarningEAXLinn54 min
Apr 6, 7:38 PM CDTTornado WarningSGFCrawford52 min
Apr 6, 8:09 PM CDTTornado WarningSGFCedar, Dade45 min
Apr 6, 8:45 PM CDTSevere Thunderstorm WarningEAXHenry, Jackson, Johnson, Lafayette24 min
Apr 6, 11:04 PM CDTSevere Thunderstorm WarningSGFHowell41 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

Springfield, MO (KSGF), launched 12:00Z, 10.9 hours before the alert went out and 106 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, Springfield, MO at 12:00Z on 2006-04-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 293 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, Springfield, MO at 12:00Z on 2006-04-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 378 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
293 J/kg
Mixed-layer CIN
-508 J/kg
Mixed-layer LCL
1046 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
378 m²/s²
0-3 km storm-relative helicity
394 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 6, 6:01 AM CDTMesoscale DiscussionSPCAtchison, Brown, Doniphan, Douglas, Franklin, Jackson and 13 more119 min
Apr 6, 12:12 PM CDTMesoscale DiscussionSPCBarton, Clay, Cloud, Dickinson, Ellis, Ellsworth and 24 more2 hr
Apr 6, 12:43 PM CDTTornado WatchSPCAllen, Anderson, Barton, Brown, Butler, Chase and 47 more8 hr
Apr 6, 4:53 PM CDTMesoscale DiscussionSPCAtchison, Bourbon, Cherokee, Crawford, Doniphan, Douglas and 6 more97 min
Apr 5, 10:36 PM CDTMesoscale DiscussionSPCAdair, Audrain, Boone, Caldwell, Callaway, Carroll and 30 more84 min
Apr 5, 11:09 PM CDTSevere Thunderstorm WatchSPCAdair, Audrain, Boone, Callaway, Chariton, Clark and 30 more4 hr
Apr 6, 11:03 AM CDTMesoscale DiscussionSPCBarry, Jasper, Lawrence, McDonald, Newton, Stone and 1 more117 min
Apr 6, 11:19 AM CDTMesoscale DiscussionSPCBollinger, Cape Girardeau, Clark, Franklin, Iron, Jefferson and 18 more56 min
Apr 6, 12:12 PM CDTSevere Thunderstorm WatchSPCBarry, Christian, Dent, Douglas, Greene, Howell and 9 more4 hr
Apr 6, 3:29 PM CDTMesoscale DiscussionSPCDouglas, Howell, Ozark, Texas, Wright91 min
Apr 6, 4:21 PM CDTMesoscale DiscussionSPCBarry, McDonald, Taney84 min

Nearby

Tornado Watches in Missouri, 2006Tornado Watches in Kansas, 2006Every tornado watch in 2006

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.