Alert archive / Missouri / Severe Thunderstorm Watches in 2003

Severe Thunderstorm Watch 179

April 29, 20038 counties in Illinois; Fulton County, Kentucky; 53 counties in Missouri

The Storm Prediction Center issued this severe thunderstorm watch at Apr 29, 2003, 2:05 PM CDT for 8 counties in Illinois; Fulton County, Kentucky; 53 counties in Missouri. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued
Apr 29, 2003, 2:05 PM CDT (19:05 UTC)
Expired
Apr 29, 2003, 7:00 PM CDT
In force
5 hr
Issued by
the Storm Prediction Center
All 62 counties

Alexander County, IL, Jackson County, IL, Monroe County, IL, Perry County, IL, Pulaski County, IL, Randolph County, IL, Union County, IL, Washington County, IL, Fulton County, KY, Barry County, MO, Barton County, MO, Bates County, MO, Benton County, MO, Bollinger County, MO, Butler County, MO, Camden County, MO, Cape Girardeau County, MO, Carter 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, Iron County, MO, Jasper County, MO, Jefferson County, MO, Laclede County, MO, Lawrence County, MO, Madison County, MO, Maries County, MO, McDonald County, MO, Miller County, MO, Mississippi County, MO, New Madrid County, MO, Newton County, MO, Oregon County, MO, Ozark County, MO, Perry County, MO, Phelps County, MO, Polk County, MO, Pulaski County, MO, Reynolds County, MO, Ripley County, MO, Saint Francois County, MO, Sainte Genevieve County, MO, Scott County, MO, Shannon County, MO, St. Clair County, MO, Stoddard County, MO, Stone County, MO, Taney County, MO, Texas County, MO, Vernon County, MO, Washington County, MO, Wayne County, MO, Webster County, MO, Wright County, MO

The radar

The Springfield radar (KSGF), 97 km from the middle of the area, began a volume at 19:08 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

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

IssuedProductOfficeCountiesLasted
Apr 29, 2:06 PM CDTSevere Thunderstorm WarningLSXIron, Washington39 min
Apr 29, 3:20 PM CDTSevere Thunderstorm WarningSGFChristian25 min
Apr 29, 3:33 PM CDTSevere Thunderstorm WarningPAHPerry42 min
Apr 29, 3:44 PM CDTSevere Thunderstorm WarningSGFChristian61 min
Apr 29, 3:55 PM CDTSevere Thunderstorm WarningSGFPhelps65 min
Apr 29, 4:20 PM CDTSevere Thunderstorm WarningSGFOzark55 min
Apr 29, 4:24 PM CDTSevere Thunderstorm WarningPAHPerry51 min
Apr 29, 4:30 PM CDTSevere Thunderstorm WarningLSXMadison, Saint Francois45 min
Apr 29, 4:30 PM CDTFlash Flood WarningPAHPerry3 hr
Apr 29, 4:47 PM CDTSevere Thunderstorm WarningPAHBollinger43 min
Apr 29, 4:49 PM CDTSevere Thunderstorm WarningLSXJefferson41 min
Apr 29, 5:08 PM CDTSevere Thunderstorm WarningPAHUnion37 min
Apr 29, 5:17 PM CDTFlash Flood WarningPAHBollinger3 hr
Apr 29, 5:34 PM CDTSevere Thunderstorm WarningPAHNew Madrid41 min
Apr 29, 5:46 PM CDTSevere Thunderstorm WarningPAHUnion44 min
Apr 29, 5:48 PM CDTSevere Thunderstorm WarningPAHCape Girardeau42 min
Apr 29, 6:06 PM CDTFlash Flood WarningPAHUnion114 min
Apr 29, 6:27 PM CDTSevere Thunderstorm WarningPAHFulton33 min
Apr 29, 6:31 PM CDTSevere Thunderstorm WarningPAHUnion44 min
Apr 29, 6:33 PM CDTSevere Thunderstorm WarningLSXWashington27 min
Apr 29, 6:37 PM CDTSevere Thunderstorm WarningLSXIron, Madison53 min
Apr 29, 6:46 PM CDTSevere Thunderstorm WarningSGFPulaski44 min
Apr 29, 6:48 PM CDTSevere Thunderstorm WarningPAHScott42 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, 7.1 hours before the alert went out and 146 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 2003-04-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 240 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 2003-04-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 8 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
240 J/kg
Mixed-layer CIN
-175 J/kg
Mixed-layer LCL
1513 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
8 m²/s²
0-3 km storm-relative helicity
36 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 29, 12:32 PM CDTMesoscale DiscussionSPCAlexander, Hardin, Jackson, Johnson, Massac, Pope and 4 more118 min
Apr 29, 5:11 PM CDTMesoscale DiscussionSPCAlexander, Jackson, Monroe, Perry, Pulaski, Randolph and 2 more2 hr
Apr 28, 7:10 PM CDTMesoscale DiscussionSPCBarry, Barton, Bates, Cedar, Christian, Dade and 17 more2 hr

Nearby

Severe Thunderstorm Watches in Missouri, 2003Severe Thunderstorm Watches in Illinois, 2003Severe Thunderstorm Watches in Kentucky, 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; radar from the NEXRAD Level II archive.