Alert archive / South Dakota / Severe Thunderstorm Watches in 2002

Severe Thunderstorm Watch 454

June 22, 20025 counties in North Dakota; 20 counties in South Dakota

The Storm Prediction Center issued this severe thunderstorm watch at Jun 22, 2002, 5:00 PM CDT for 5 counties in North Dakota; 20 counties in South Dakota. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued
Jun 22, 2002, 5:00 PM CDT (22:00 UTC)
Expired
Jun 22, 2002, 10:00 PM CDT
In force
5 hr
Issued by
the Storm Prediction Center
All 25 counties

Dickey County, ND, McIntosh County, ND, Ransom County, ND, Richland County, ND, Sargent County, ND, Brown County, SD, Campbell County, SD, Clark County, SD, Codington County, SD, Day County, SD, Dewey County, SD, Edmunds County, SD, Faulk County, SD, Grant County, SD, Hand County, SD, Hughes County, SD, Hyde County, SD, Marshall County, SD, McPherson County, SD, Potter County, SD, Roberts County, SD, Spink County, SD, Stanley County, SD, Sully County, SD, Walworth County, SD

The radar

The Aberdeen radar (KABR), 73 km from the middle of the area, began a volume at 22:02 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

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

IssuedProductOfficeCountiesLasted
Jun 22, 6:04 PM CDTSevere Thunderstorm WarningABRHughes, Stanley56 min
Jun 22, 6:05 PM CDTSevere Thunderstorm WarningBISDickey55 min
Jun 22, 7:02 PM CDTSevere Thunderstorm WarningBISDickey58 min
Jun 22, 7:08 PM CDTSevere Thunderstorm WarningABRHughes52 min
Jun 22, 7:13 PM CDTFlash Flood WarningBISDickey3 hr
Jun 22, 7:41 PM CDTSevere Thunderstorm WarningABREdmunds, McPherson64 min
Jun 22, 8:06 PM CDTSevere Thunderstorm WarningABRHyde54 min
Jun 22, 8:24 PM CDTSevere Thunderstorm WarningABRBuffalo, Hand66 min
Jun 22, 8:57 PM CDTSevere Thunderstorm WarningABRHyde63 min
Jun 22, 9:30 PM CDTSevere Thunderstorm WarningABRHand60 min
Jun 22, 9:55 PM CDTSevere Thunderstorm WarningABRSully50 min
Jun 22, 9:57 PM CDTSevere Thunderstorm WarningABRHyde63 min

The nearest sounding before it

Aberdeen, SD (KABR), launched 12:00Z, 10.0 hours before the alert went out and 100 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, Aberdeen, SD at 12:00Z on 2002-06-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1804 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, Aberdeen, SD at 12:00Z on 2002-06-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 151 square meters per square second.193958Sfc1 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
1804 J/kg
Mixed-layer CIN
-330 J/kg
Mixed-layer LCL
1528 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
151 m²/s²
0-3 km storm-relative helicity
132 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

Nearby

Severe Thunderstorm Watches in South Dakota, 2002Severe Thunderstorm Watches in North Dakota, 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; radar from the NEXRAD Level II archive.