Alert archive / Missouri / Tornado Watches in 2005

Tornado Watch 181

April 21, 20054 counties in Kansas; 33 counties in Missouri; Ottawa County, Oklahoma

The Storm Prediction Center issued this tornado watch at Apr 21, 2005, 6:10 PM CDT for 4 counties in Kansas; 33 counties in Missouri; Ottawa County, Oklahoma. It was in force for 7 hr.

The area

The outline as issued.

The facts

Issued
Apr 21, 2005, 6:10 PM CDT (23:10 UTC)
Expired
Apr 22, 2005, 1:00 AM CDT
In force
7 hr
Issued by
the Storm Prediction Center
All 38 counties

Bourbon County, KS, Cherokee County, KS, Crawford County, KS, Linn County, KS, Barry County, MO, Barton County, MO, Camden County, MO, Cedar County, MO, Christian County, MO, Crawford County, MO, Dade County, MO, Dallas County, MO, Dent County, MO, Douglas County, MO, Greene County, MO, Hickory County, MO, Howell County, MO, Jasper County, MO, Laclede County, MO, Lawrence County, MO, Maries County, MO, McDonald County, MO, Miller County, MO, Newton County, MO, Oregon County, MO, Ozark 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, Ottawa County, OK

The radar

The Springfield radar (KSGF), 40 km from the middle of the area, began a volume at 23:10 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

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

IssuedProductOfficeCountiesLasted
Apr 21, 6:15 PM CDTTornado WarningSGFBourbon45 min
Apr 21, 6:48 PM CDTSevere Thunderstorm WarningSGFMaries42 min
Apr 21, 6:53 PM CDTTornado WarningSGFCrawford67 min
Apr 21, 6:58 PM CDTTornado WarningSGFBourbon32 min
Apr 21, 6:59 PM CDTTornado WarningSGFMaries61 min
Apr 21, 7:05 PM CDTTornado WarningSGFCherokee55 min
Apr 21, 7:17 PM CDTSevere Thunderstorm WarningLSXCrawford, Gasconade43 min
Apr 21, 7:20 PM CDTTornado WarningSGFBarton, Jasper70 min
Apr 21, 8:00 PM CDTSevere Thunderstorm WarningSGFCrawford30 min
Apr 21, 8:27 PM CDTTornado WarningSGFJasper63 min
Apr 21, 8:30 PM CDTSevere Thunderstorm WarningSGFBarton60 min
Apr 21, 8:49 PM CDTSevere Thunderstorm WarningSGFNewton71 min
Apr 21, 9:04 PM CDTTornado WarningSGFLawrence71 min
Apr 21, 9:09 PM CDTSevere Thunderstorm WarningSGFDade66 min
Apr 22, 12:15 AM CDTFlash Flood WarningSGFOzark, Taney6 hr

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, 11.2 hours before the alert went out and 77 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 2005-04-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 780 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 2005-04-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 118 square meters per square second.1939Sfc1 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
780 J/kg
Mixed-layer CIN
-135 J/kg
Mixed-layer LCL
696 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
118 m²/s²
0-3 km storm-relative helicity
93 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 20, 7:25 PM CDTMesoscale DiscussionSPCCheyenne, Decatur, Gove, Logan, Norton, Rawlins and 4 more95 min
Apr 20, 9:29 PM CDTMesoscale DiscussionSPCClay, Cloud, Dickinson, Geary, Jackson, Jewell and 13 more61 min
Apr 20, 9:45 PM CDTSevere Thunderstorm WatchSPCAtchison, Brown, Clay, Cloud, Dickinson, Douglas and 21 more7 hr
Apr 20, 9:51 PM CDTMesoscale DiscussionSPCBarber, Clark, Comanche, Edwards, Ford, Kingman and 4 more84 min
Apr 20, 11:00 PM CDTSevere Thunderstorm WatchSPCCheyenne, Decatur, Rawlins6 hr
Apr 20, 11:50 PM CDTMesoscale DiscussionSPCBrown, Clay, Cloud, Ellis, Geary, Jackson and 15 more85 min
Apr 21, 12:48 AM CDTMesoscale DiscussionSPCCheyenne, Decatur, Graham, Norton, Phillips, Rawlins and 4 more57 min
Apr 21, 1:00 AM CDTSevere Thunderstorm WatchSPCCheyenne, Decatur, Graham, Norton, Phillips, Rawlins and 4 more4 hr
Apr 21, 3:34 AM CDTMesoscale DiscussionSPCBrown, Doniphan116 min
Apr 21, 11:13 AM CDTMesoscale DiscussionSPCAtchison, Brown, Doniphan, Jackson, Jefferson, Marshall and 4 more2 hr
Apr 21, 11:35 AM CDTTornado WatchSPCClay, Cloud, Jackson, Jewell, Marshall, Nemaha and 4 more5 hr
Apr 21, 1:45 PM CDTSevere Thunderstorm WatchSPCBourbon, Cherokee, Crawford, Linn5 hr
Apr 21, 1:48 PM CDTMesoscale DiscussionSPCAtchison, Jackson, Marshall, Nemaha, Pottawatomie, Riley and 1 more87 min
Apr 21, 3:05 PM CDTMesoscale DiscussionSPCAnderson, Atchison, Brown, Doniphan, Douglas, Franklin and 11 more85 min
Apr 21, 3:35 PM CDTTornado WatchSPCAnderson, Atchison, Brown, Doniphan, Douglas, Franklin and 11 more7 hr
Apr 21, 4:51 PM CDTMesoscale DiscussionSPCAtchison54 min
Apr 21, 5:52 PM CDTMesoscale DiscussionSPCAtchison, Brown, Doniphan, Douglas, Jackson, Jefferson and 5 more53 min
Apr 21, 6:51 PM CDTMesoscale DiscussionSPCAtchison, Brown, Doniphan, Douglas, Franklin, Jackson and 7 more84 min
Apr 21, 12:15 PM CDTMesoscale DiscussionSPCBoone, Callaway, Cole, Cooper, Crawford, Franklin and 12 more2 hr
Apr 21, 1:10 PM CDTSevere Thunderstorm WatchSPCAdair, Audrain, Crawford, Franklin, Gasconade, Jefferson and 16 more6 hr
Apr 21, 1:23 PM CDTMesoscale DiscussionSPCBarry, Barton, Bates, Benton, Camden, Cedar and 22 more67 min
Apr 21, 3:28 PM CDTMesoscale DiscussionSPCAudrain, Boone, Callaway, Cole, Franklin, Gasconade and 14 more92 min
Apr 21, 5:14 PM CDTMesoscale DiscussionSPCMcDonald2 hr
Apr 21, 5:22 PM CDTMesoscale DiscussionSPCBollinger, Butler, Cape Girardeau, Carter, Dunklin, Madison and 8 more53 min
Apr 21, 5:35 PM CDTSevere Thunderstorm WatchSPCBollinger, Butler, Cape Girardeau, Carter, Dunklin, Iron and 11 more7 hr
Apr 21, 6:45 PM CDTSevere Thunderstorm WatchSPCAudrain, Boone, Caldwell, Callaway, Carroll, Chariton and 21 more6 hr
Apr 20, 8:45 PM CDTMesoscale DiscussionSPCCaddo, Canadian, Cleveland, Comanche, Cotton, Garfield and 9 more90 min
Apr 21, 6:15 PM CDTSevere Thunderstorm WatchSPCAdair, Cherokee, Delaware, Haskell, Hughes, Latimer and 9 more7 hr

Nearby

Tornado Watches in Missouri, 2005Tornado Watches in Kansas, 2005Tornado Watches in Oklahoma, 2005Every tornado watch in 2005

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.