Alert archive / Missouri / Severe Thunderstorm Watches in 2003

Severe Thunderstorm Watch 230

May 4, 20034 states

The Storm Prediction Center issued this severe thunderstorm watch at May 4, 2003, 4:50 AM CDT for 4 states. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
May 4, 2003, 4:50 AM CDT (09:50 UTC)
Expired
May 4, 2003, 11:00 AM CDT
In force
6 hr
Issued by
the Storm Prediction Center
All 115 counties

Adair County, IA, Adams County, IA, Appanoose County, IA, Cass County, IA, Clarke County, IA, Davis County, IA, Decatur County, IA, Fremont County, IA, Henry County, IA, Jefferson County, IA, Keokuk County, IA, Lee County, IA, Lucas County, IA, Madison County, IA, Mahaska County, IA, Marion County, IA, Mills County, IA, Monroe County, IA, Montgomery County, IA, Page County, IA, Pottawattamie County, IA, Ringgold County, IA, Taylor County, IA, Union County, IA, Van Buren County, IA, Wapello County, IA, Warren County, IA, Washington County, IA, Wayne County, IA, Adams County, IL, Calhoun County, IL, Hancock County, IL, Monroe County, IL, Pike County, IL, Doniphan County, KS, Wyandotte County, KS, Adair County, MO, Andrew County, MO, Atchison County, MO, Audrain County, MO, Bates County, MO, Benton County, MO, Boone County, MO, Buchanan County, MO, Caldwell County, MO, Callaway County, MO, Camden County, MO, Carroll County, MO, Cass County, MO, Cedar County, MO, Chariton County, MO, Clark County, MO, Clay County, MO, Clinton County, MO, Cole County, MO, Cooper County, MO, Crawford County, MO, Dallas County, MO, Daviess County, MO, DeKalb County, MO, Dent County, MO, Franklin County, MO, Gasconade County, MO, Gentry County, MO, Grundy County, MO, Harrison County, MO, Henry County, MO, Hickory County, MO, Holt County, MO, Howard County, MO, Iron County, MO, Jackson County, MO, Jefferson County, MO, Johnson County, MO, Knox County, MO, Laclede County, MO, Lafayette County, MO, Lewis County, MO, Lincoln County, MO, Linn County, MO, Livingston County, MO, Macon County, MO, Maries County, MO, Marion County, MO, Mercer County, MO, Miller County, MO, Moniteau County, MO, Monroe County, MO, Montgomery County, MO, Morgan County, MO, Nodaway County, MO, Osage County, MO, Pettis County, MO, Phelps County, MO, Pike County, MO, Platte County, MO, Polk County, MO, Pulaski County, MO, Putnam County, MO, Ralls County, MO, Randolph County, MO, Ray County, MO, Saint Charles County, MO, Saint Francois County, MO, Saint Louis County, MO, Sainte Genevieve County, MO, Saline County, MO, Schuyler County, MO, Scotland County, MO, Shelby County, MO, St. Clair County, MO, Sullivan County, MO, Warren County, MO, Washington County, MO, Worth County, MO

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
May 4, 5:27 AM CDTSevere Thunderstorm WarningLSXCallaway, Cole, Moniteau63 min
May 4, 5:29 AM CDTSevere Thunderstorm WarningDMXRinggold, Taylor, Union46 min
May 4, 6:14 AM CDTSevere Thunderstorm WarningDMXClarke, Decatur46 min
May 4, 7:24 AM CDTSevere Thunderstorm WarningSGFMaries, Miller51 min
May 4, 7:32 AM CDTSevere Thunderstorm WarningLSXOsage43 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, 9.8 hours before the alert went out and 277 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 2003-05-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2003-05-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 45 square meters per square second.1939587897117Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1586 m above ground
0-6 km bulk shear
56 kt
0-1 km storm-relative helicity
45 m²/s²
0-3 km storm-relative helicity
215 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 4, 5:25 PM CDTSevere Thunderstorm WatchSPCAdams, Bond, Brown, Calhoun, Cass, Christian and 35 more6 hr
May 4, 6:55 PM CDTTornado WatchSPCAlexander6 hr
May 3, 11:46 PM CDTMesoscale DiscussionSPCAdams, Cass, Fremont, Harrison, Mills, Monona and 5 more59 min
May 4, 12:10 AM CDTSevere Thunderstorm WatchSPCAdair, Adams, Audubon, Boone, Carroll, Cass and 18 more6 hr
May 4, 2:58 AM CDTMesoscale DiscussionSPCAdair, Adams, Appanoose, Audubon, Boone, Carroll and 37 more92 min
May 4, 7:43 AM CDTMesoscale DiscussionSPCAdair, Adams, Appanoose, Cass, Clarke, Davis and 15 more2 hr
May 4, 9:48 AM CDTMesoscale DiscussionSPCAudubon, Buena Vista, Carroll, Cass, Cherokee, Clay and 17 more117 min
May 4, 12:14 PM CDTMesoscale DiscussionSPCFremont, Mills, Montgomery, Page, Pottawattamie, Taylor2 hr
May 4, 12:45 PM CDTTornado WatchSPCAdams, Cass, Fremont, Mills, Montgomery, Page and 2 more6 hr
May 4, 2:22 PM CDTMesoscale DiscussionSPCFremont, Mills, Montgomery, Page, Pottawattamie, Taylor113 min
May 4, 3:56 PM CDTMesoscale DiscussionSPCAdair, Appanoose, Audubon, Boone, Carroll, Cass and 22 more2 hr
May 4, 5:50 PM CDTSevere Thunderstorm WatchSPCAdair, Adams, Appanoose, Clarke, Dallas, Decatur and 14 more5 hr
May 3, 11:07 PM CDTMesoscale DiscussionSPCBarber, Barton, Butler, Chase, Clark, Clay and 43 more83 min
May 4, 10:19 AM CDTMesoscale DiscussionSPCAtchison, Butler, Chase, Clay, Coffey, Dickinson and 19 more116 min
May 4, 11:40 AM CDTTornado WatchSPCAnderson, Chase, Clay, Cloud, Coffey, Dickinson and 19 more6 hr
May 4, 11:44 AM CDTMesoscale DiscussionSPCChautauqua, Cherokee, Crawford, Labette, Montgomery, Neosho and 1 more3 hr
May 4, 12:35 PM CDTTornado WatchSPCAllen, Bourbon, Chautauqua, Cherokee, Crawford, Elk and 6 more6 hr
May 4, 2:58 PM CDTMesoscale DiscussionSPCEllis, Gove, Jewell, Lane, Lincoln, Mitchell and 9 more92 min
May 4, 3:05 PM CDTMesoscale DiscussionSPCAllen, Bourbon, Cherokee, Crawford, Labette, Montgomery and 1 more115 min
May 4, 4:28 PM CDTMesoscale DiscussionSPCWyandotte62 min
May 4, 4:43 PM CDTMesoscale DiscussionSPCBourbon, Cherokee, Crawford, Labette, Linn, Neosho2 hr
May 4, 6:05 PM CDTTornado WatchSPCBourbon, Cherokee, Crawford7 hr
May 4, 6:20 PM CDTTornado WatchSPCDoniphan, Wyandotte6 hr
May 4, 5:01 PM CDTMesoscale DiscussionSPCButler, Dunklin, Mississippi, New Madrid, Pemiscot, Stoddard3 hr
May 4, 5:20 PM CDTMesoscale DiscussionSPCBarry, Barton, Cedar, Christian, Dade, Dallas and 18 more55 min

Nearby

Severe Thunderstorm Watches in Missouri, 2003Severe Thunderstorm Watches in Iowa, 2003Severe Thunderstorm Watches in Illinois, 2003Every severe thunderstorm watch in 2003

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.