Alert archive / Missouri / Tornado Watches in 2008

Tornado Watch 470

June 5, 20084 counties in Illinois; Bourbon County, Cherokee County, Crawford County, Kansas; 60 counties in Missouri

The Storm Prediction Center issued this tornado watch at Jun 5, 2008, 9:43 PM CDT for 4 counties in Illinois; Bourbon County, Cherokee County, Crawford County, Kansas; 60 counties in Missouri. It was in force for 7 hr.

The area

The outline as issued.

The facts

Issued
Jun 5, 2008, 9:43 PM CDT (02:43 UTC)
Expired
Jun 6, 2008, 5:00 AM CDT
In force
7 hr
Issued by
the Storm Prediction Center
Largest hail expected
2 in
Strongest gust expected
80 kt
All 67 counties

Adams County, IL, Brown County, IL, Hancock County, IL, Pike County, IL, Bourbon County, KS, Cherokee County, KS, Crawford County, KS, Adair County, MO, Audrain County, MO, Barry County, MO, Barton County, MO, Benton County, MO, Boone County, MO, Callaway County, MO, Camden County, MO, Carroll County, MO, Cedar County, MO, Chariton County, MO, Christian County, MO, Clark County, MO, Cole County, MO, Cooper County, MO, Dade County, MO, Dallas County, MO, Douglas County, MO, Greene County, MO, Henry County, MO, Hickory County, MO, Howard County, MO, Jasper County, MO, Johnson County, MO, Knox County, MO, Laclede County, MO, Lafayette County, MO, Lawrence County, MO, Lewis County, MO, Linn County, MO, Livingston County, MO, Macon County, MO, Maries County, MO, Marion County, MO, McDonald County, MO, Miller County, MO, Moniteau County, MO, Monroe County, MO, Montgomery County, MO, Morgan County, MO, Newton County, MO, Osage County, MO, Pettis County, MO, Pike County, MO, Polk County, MO, Pulaski County, MO, Putnam County, MO, Ralls County, MO, Randolph County, MO, Saline County, MO, Schuyler County, MO, Scotland County, MO, Shelby County, MO, St. Clair County, MO, Stone County, MO, Sullivan County, MO, Taney County, MO, Vernon County, MO, Webster County, MO, Wright County, MO

The radar

The Pleasant Hill radar (KEAX), 104 km from the middle of the area, began a volume at 02:45 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
50%
One or more EF2 to EF5 tornadoes
20%
Ten or more severe wind reports
95%
One or more gusts of 65 knots or more
90%
Ten or more severe hail reports
70%
One or more hailstones of 2 inches or more
40%
Six or more combined severe hail and wind reports
95%

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Jun 5, 10:40 PM CDTSevere Thunderstorm WarningSGFBourbon50 min
Jun 5, 11:08 PM CDTSevere Thunderstorm WarningSGFVernon37 min
Jun 5, 11:17 PM CDTSevere Thunderstorm WarningSGFBourbon, Crawford28 min
Jun 5, 11:29 PM CDTSevere Thunderstorm WarningSGFBarton, Vernon46 min
Jun 5, 11:43 PM CDTSevere Thunderstorm WarningSGFVernon47 min
Jun 5, 11:45 PM CDTTornado WarningEAXHenry, Johnson45 min
Jun 5, 11:59 PM CDTTornado WarningEAXJohnson, Lafayette31 min
Jun 6, 12:16 AM CDTFlash Flood WarningSGFBourbon, Cherokee, Crawford8 hr
Jun 6, 12:22 AM CDTTornado WarningEAXLafayette, Saline23 min
Jun 6, 12:26 AM CDTTornado WarningEAXJohnson, Pettis, Saline19 min
Jun 6, 12:41 AM CDTSevere Thunderstorm WarningEAXCarroll, Chariton, Howard, Saline23 min
Jun 6, 1:08 AM CDTSevere Thunderstorm WarningSGFMcDonald, Newton67 min
Jun 6, 1:28 AM CDTSevere Thunderstorm WarningSGFBenton, Camden, Hickory, Morgan62 min
Jun 6, 1:52 AM CDTSevere Thunderstorm WarningSGFCedar, St. Clair, Vernon53 min
Jun 6, 1:58 AM CDTSevere Thunderstorm WarningSGFBarton27 min
Jun 6, 2:09 AM CDTSevere Thunderstorm WarningSGFCedar, Dade36 min
Jun 6, 2:15 AM CDTSevere Thunderstorm WarningSGFBarry, Lawrence45 min
Jun 6, 2:29 AM CDTSevere Thunderstorm WarningSGFChristian, Greene61 min
Jun 6, 2:36 AM CDTSevere Thunderstorm WarningSGFBenton, Hickory, Polk54 min
Jun 6, 2:51 AM CDTFlash Flood WarningSGFBarry, Lawrence, McDonald, Newton5 hr
Jun 6, 2:52 AM CDTSevere Thunderstorm WarningLSXAdams38 min
Jun 6, 3:03 AM CDTSevere Thunderstorm WarningSGFCamden, Dallas, Miller, Morgan40 min
Jun 6, 3:37 AM CDTSevere Thunderstorm WarningSGFDallas, Laclede35 min
Jun 6, 4:31 AM CDTSevere Thunderstorm WarningSGFCamden, Laclede, Pulaski35 min
Jun 6, 4:40 AM CDTSevere Thunderstorm WarningSGFMaries, Miller35 min
Jun 6, 4:46 AM CDTSevere Thunderstorm WarningLSXFranklin, Gasconade, Montgomery, Osage23 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, 2.7 hours before the alert went out and 222 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 2008-06-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1747 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 2008-06-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 281 square meters per square second.1939587897Sfc1 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
1747 J/kg
Mixed-layer CIN
-10 J/kg
Mixed-layer LCL
1265 m above ground
0-6 km bulk shear
69 kt
0-1 km storm-relative helicity
281 m²/s²
0-3 km storm-relative helicity
304 m²/s²
Significant tornado parameter
2.6
Supercell composite
13.2

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 6, 4:19 AM CDTMesoscale DiscussionSPCAdams, Brown, Hancock, Pike26 min
Jun 6, 5:14 AM CDTMesoscale DiscussionSPCBond, Boone, Bureau, Calhoun, Cass, Christian and 39 more61 min
Jun 6, 10:50 AM CDTMesoscale DiscussionSPCAdams, Bond, Brown, Bureau, Calhoun, Cass and 53 more85 min
Jun 6, 12:13 PM CDTTornado WatchSPCAlexander, Bond, Calhoun, Cass, Champaign, Christian and 47 more9 hr
Jun 6, 1:05 PM CDTTornado WatchSPCBoone, Cook, DeKalb, DuPage, Ford, Grundy and 12 more5 hr
Jun 6, 2:27 PM CDTMesoscale DiscussionSPCBond, Clay, Clinton, Effingham, Fayette, Madison and 6 more93 min
Jun 5, 9:39 PM CDTMesoscale DiscussionSPCAllen, Anderson, Bourbon, Cherokee, Crawford, Johnson and 5 more66 min
Jun 5, 7:44 PM CDTMesoscale DiscussionSPCAtchison, Holt, Nodaway, Worth91 min
Jun 5, 7:13 PM CDTMesoscale DiscussionSPCBlaine, Caddo, Canadian, Cleveland, Comanche, Cotton and 24 more62 min
Jun 5, 7:41 PM CDTTornado WatchSPCBlaine, Caddo, Canadian, Cleveland, Comanche, Cotton and 27 more7 hr
Jun 5, 9:19 PM CDTMesoscale DiscussionSPCAtoka, Bryan, Caddo, Canadian, Carter, Cherokee and 40 more116 min
Jun 5, 9:57 PM CDTTornado WatchSPCAdair, Atoka, Bryan, Carter, Cherokee, Choctaw and 24 more6 hr
Jun 5, 11:28 PM CDTMesoscale DiscussionSPCAdair, Atoka, Bryan, Carter, Cherokee, Choctaw and 36 more92 min

Nearby

Tornado Watches in Missouri, 2008Tornado Watches in Illinois, 2008Tornado Watches in Kansas, 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; radar from the NEXRAD Level II archive.