Alert archive / Minnesota / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 233, NWS Sioux Falls, SD

August 3, 2002Pipestone County, Minnesota

NWS Sioux Falls, SD issued this severe thunderstorm warning at Aug 3, 2002, 5:29 PM CDT for Pipestone County, Minnesota. It was in force for 16 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Aug 3, 2002, 5:29 PM CDT (22:29 UTC)
Expired
Aug 3, 2002, 5:45 PM CDT
In force
16 min
Issued by
NWS Sioux Falls, SD
Area
Whole counties

County Pipestone County, MN

The radar

The Sioux Falls radar (KFSD), 61 km from the middle of the area, began a volume at 22:30 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.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Aug 3, 3:00 PM CDTTornado WatchSPC6 hr

The nearest sounding before it

Aberdeen, SD (KABR), launched 12:00Z, 10.5 hours before the alert went out and 196 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 2002-08-03Temperature 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, Aberdeen, SD at 12:00Z on 2002-08-03The 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
908 m above ground
0-6 km bulk shear
63 kt
0-1 km storm-relative helicity
322 m²/s²
0-3 km storm-relative helicity
548 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

268 
WUUS53 KFSD 032229
SVRFSD
MNC117-032245-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
528 PM CDT SAT AUG 3 2002

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN PIPESTONE COUNTY IN SOUTHWEST MINNESOTA

* UNTIL 545 PM CDT

* AT 528 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 6 MILES EAST OF WARD...OR ABOUT 12 MILES NORTH
  OF PIPESTONE...MOVING NORTHEAST AT 20 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
RURAL PIPESTONE COUNTY THROUGH 540 PM CDT

THIS STORM HAS A HISTORY OF PRODUCING LARGE HAIL AND DAMAGING WIND. 
GO INSIDE A STURDY BUILDING AND STAY AWAY FROM WINDOWS.

THE SEVERE THUNDERSTORM WARNING IN ADJACENT MOODY COUNTY HAS BEEN 
ALLOWED TO EXPIRE.

The office that day

Everything else NWS Sioux Falls, SD issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 3, 4:33 PM CDTSevere Thunderstorm WarningFSDLincoln27 min
Aug 3, 4:42 PM CDTSevere Thunderstorm WarningFSDPipestone48 min
Aug 3, 5:10 PM CDTTornado WarningFSDLincoln20 min
Aug 3, 5:25 PM CDTSevere Thunderstorm WarningFSDLincoln35 min
Aug 3, 6:21 PM CDTSevere Thunderstorm WarningFSDLyon, Pipestone24 min
Aug 3, 6:36 PM CDTSevere Thunderstorm WarningFSDMurray24 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2002Every severe thunderstorm warning 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.