Alert archive / Missouri / Severe Thunderstorm Watches in 2000

Severe Thunderstorm Watch 160

April 7, 200019 counties in Arkansas; 8 counties in Illinois; 31 counties in Missouri

The Storm Prediction Center issued this severe thunderstorm watch at Apr 7, 2000, 2:15 PM CDT for 19 counties in Arkansas; 8 counties in Illinois; 31 counties in Missouri. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Apr 7, 2000, 2:15 PM CDT (19:15 UTC)
Expired
Apr 7, 2000, 8:00 PM CDT
In force
6 hr
Issued by
the Storm Prediction Center
All 58 counties

Baxter County, AR, Boone County, AR, Clay County, AR, Cleburne County, AR, Conway County, AR, Fulton County, AR, Greene County, AR, Independence County, AR, Izard County, AR, Lawrence County, AR, Marion County, AR, Newton County, AR, Perry County, AR, Pope County, AR, Randolph County, AR, Searcy County, AR, Sharp County, AR, Stone County, AR, Van Buren County, AR, Alexander County, IL, Clinton County, IL, Jackson County, IL, Monroe County, IL, Perry County, IL, Randolph County, IL, Saint Clair County, IL, Washington County, IL, Bollinger County, MO, Butler County, MO, Cape Girardeau County, MO, Carter County, MO, Christian County, MO, Crawford County, MO, Dent County, MO, Douglas County, MO, Dunklin County, MO, Howell County, MO, Iron County, MO, Jefferson County, MO, Madison County, MO, New Madrid County, MO, Oregon County, MO, Ozark County, MO, Perry County, MO, Phelps County, MO, Reynolds County, MO, Ripley County, MO, Saint Francois County, MO, Sainte Genevieve County, MO, Scott County, MO, Shannon County, MO, Stoddard County, MO, Taney County, MO, Texas County, MO, Washington County, MO, Wayne County, MO, Webster County, MO, Wright County, MO

The radar

The Springfield radar (KSGF), 154 km from the middle of the area, began a volume at 19:18 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

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

IssuedProductOfficeCountiesLasted
Apr 7, 2:20 PM CDTSevere Thunderstorm WarningLSXSaint Clair55 min
Apr 7, 2:34 PM CDTSevere Thunderstorm WarningLSXWashington56 min
Apr 7, 2:36 PM CDTSevere Thunderstorm WarningSGFDent39 min
Apr 7, 2:39 PM CDTSevere Thunderstorm WarningLSXJefferson51 min
Apr 7, 2:43 PM CDTSevere Thunderstorm WarningLSXClinton62 min
Apr 7, 2:50 PM CDTSevere Thunderstorm WarningLSXWashington55 min
Apr 7, 2:51 PM CDTSevere Thunderstorm WarningLSXMonroe54 min
Apr 7, 3:13 PM CDTSevere Thunderstorm WarningLSXRandolph, Saint Clair47 min
Apr 7, 3:29 PM CDTSevere Thunderstorm WarningLSXSaint Francois, Washington46 min
Apr 7, 3:38 PM CDTSevere Thunderstorm WarningLSXClinton, Washington37 min
Apr 7, 3:49 PM CDTSevere Thunderstorm WarningLSXSainte Genevieve56 min
Apr 7, 3:58 PM CDTSevere Thunderstorm WarningLZKPope47 min
Apr 7, 4:11 PM CDTSevere Thunderstorm WarningLZKVan Buren64 min
Apr 7, 4:39 PM CDTSevere Thunderstorm WarningLZKCleburne, Stone51 min
Apr 7, 5:13 PM CDTSevere Thunderstorm WarningLZKVan Buren17 min
Apr 7, 5:26 PM CDTSevere Thunderstorm WarningLZKCleburne64 min
Apr 7, 5:35 PM CDTSevere Thunderstorm WarningLZKVan Buren35 min

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 7.3 hours before the alert went out and 187 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 2000-04-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 717 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 2000-04-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 322 square meters per square second.19395878Sfc1 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
717 J/kg
Mixed-layer CIN
-138 J/kg
Mixed-layer LCL
867 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
322 m²/s²
0-3 km storm-relative helicity
320 m²/s²
Significant tornado parameter
0.0
Supercell composite
11.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 7, 6:15 PM CDTSevere Thunderstorm WatchSPCArkansas, Bradley, Calhoun, Clark, Cleveland, Columbia and 33 more6 hr
Apr 7, 1:15 PM CDTTornado WatchSPCAlexander, Clay, Crawford, Edwards, Franklin, Gallatin and 16 more7 hr

Nearby

Severe Thunderstorm Watches in Missouri, 2000Severe Thunderstorm Watches in Arkansas, 2000Severe Thunderstorm Watches in Illinois, 2000Every severe thunderstorm watch in 2000

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.