Alert archive / Missouri / Severe Thunderstorm Watches in 2002

Severe Thunderstorm Watch 190

April 30, 200224 counties in Missouri

The Storm Prediction Center issued this severe thunderstorm watch at Apr 30, 2002, 3:00 PM CDT for 24 counties in Missouri. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued
Apr 30, 2002, 3:00 PM CDT (20:00 UTC)
Expired
Apr 30, 2002, 8:00 PM CDT
In force
5 hr
Issued by
the Storm Prediction Center
All 24 counties

Bollinger County, MO, Butler County, MO, Cape Girardeau County, MO, Carter County, MO, Dent County, MO, Douglas County, MO, Howell County, MO, Iron County, MO, Laclede County, MO, Madison County, MO, New Madrid County, MO, Oregon County, MO, Ozark County, MO, Perry County, MO, Phelps County, MO, Pulaski County, MO, Reynolds County, MO, Ripley County, MO, Saint Francois County, MO, Shannon County, MO, Stoddard County, MO, Texas County, MO, Wayne County, MO, Wright County, MO

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 8.0 hours before the alert went out and 218 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 2002-04-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 40 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 2002-04-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 69 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
40 J/kg
Mixed-layer CIN
-440 J/kg
Mixed-layer LCL
1432 m above ground
0-6 km bulk shear
65 kt
0-1 km storm-relative helicity
69 m²/s²
0-3 km storm-relative helicity
241 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
Apr 30, 9:30 AM CDTSevere Thunderstorm WatchSPCBarry, Butler, Carter, Cedar, Christian, Dade and 18 more6 hr
Apr 30, 10:00 AM CDTSevere Thunderstorm WatchSPCDunklin, Pemiscot5 hr

Nearby

Severe Thunderstorm Watches in Missouri, 2002Every severe thunderstorm watch in 2002

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.