Alert archive / South Dakota / Tornado Warnings in 2000

Tornado Warning 19, NWS Sioux Falls, SD

July 11, 2000Lake County, Moody County, South Dakota

NWS Sioux Falls, SD issued this tornado warning at Jul 11, 2000, 6:28 PM CDT for Lake County, Moody County, South Dakota. It was in force for 32 min. 3 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Jul 11, 2000, 6:28 PM CDT (23:28 UTC)
Expired
Jul 11, 2000, 7:00 PM CDT
In force
32 min
Issued by
NWS Sioux Falls, SD
Area
Whole counties

Counties Lake County, SD, Moody County, SD

The radar

The Sioux Falls radar (KFSD), 50 km from the middle of the area, began a volume at 23:28 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.

What was reported inside it

TimeReportWhereRemark
Jul 11, 6:40 PM CDTHail 0.75Colman, SD
Jul 11, 6:45 PM CDTHail 2.75Colman, SD
Jul 11, 6:55 PM CDTHail 1.75Trent, SD

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The watch it was issued in

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

IssuedProductOfficeLasted
Jul 11, 4:30 PM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Aberdeen, SD (KABR), launched 12:00Z, 11.5 hours before the alert went out and 154 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 2000-07-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 683 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 2000-07-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 105 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
683 J/kg
Mixed-layer CIN
-84 J/kg
Mixed-layer LCL
957 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
105 m²/s²
0-3 km storm-relative helicity
119 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.4

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KFSD 112329
TORFSD

SDC079-101-120000-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
628 PM CDT TUE JUL 11 2000

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHEASTERN LAKE COUNTY IN EAST CENTRAL SOUTH DAKOTA
  SOUTHWESTERN MOODY COUNTY IN EAST CENTRAL SOUTH DAKOTA

* UNTIL 700 PM CDT

* AT 628 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  TORNADO 3 MILES SOUTH OF WENTWORTH...OR ABOUT 8 MILES SOUTHEAST OF
  MADISON...MOVING EAST AT 25 MPH.

* THE TORNADO WILL BE NEAR...
  TRENT AROUND 655 PM CDT

THIS STORM PRODUCED A TORNADO SOUTH OF MADISON AT 613 PM CDT.

THIS IS AN EXTREMELY DANGEROUS AND POTENTIALLY LIFE THREATENING
SITUATION. IF YOU ARE IN THE PATH OF THIS TORNADO...TAKE COVER
IMMEDIATELY. GO TO THE BASEMENT. IF A BASEMENT IS NOT AVAILABLE...GO
TO A SMALL INTERIOR ROOM ON THE LOWEST FLOOR.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 11, 4:04 PM CDTSevere Thunderstorm WarningFSDBeadle41 min
Jul 11, 4:40 PM CDTSevere Thunderstorm WarningFSDKingsbury35 min
Jul 11, 4:52 PM CDTTornado WarningFSDKingsbury23 min
Jul 11, 4:55 PM CDTSevere Thunderstorm WarningFSDBeadle, Jerauld35 min
Jul 11, 5:14 PM CDTSevere Thunderstorm WarningFSDKingsbury31 min
Jul 11, 5:18 PM CDTTornado WarningFSDKingsbury27 min
Jul 11, 5:30 PM CDTSevere Thunderstorm WarningFSDJerauld, Sanborn30 min
Jul 11, 5:34 PM CDTTornado WarningFSDBrookings26 min
Jul 11, 5:36 PM CDTSevere Thunderstorm WarningFSDLake24 min
Jul 11, 5:38 PM CDTSevere Thunderstorm WarningFSDAurora, Brule37 min
Jul 11, 5:48 PM CDTTornado WarningFSDLake27 min
Jul 11, 5:59 PM CDTTornado WarningFSDBrookings, Moody31 min
Jul 11, 6:05 PM CDTTornado WarningFSDLake25 min
Jul 11, 6:15 PM CDTSevere Thunderstorm WarningFSDAurora, Davison30 min
Jul 11, 6:40 PM CDTSevere Thunderstorm WarningFSDMcCook35 min
Jul 11, 6:42 PM CDTSevere Thunderstorm WarningFSDDavison33 min
Jul 11, 6:48 PM CDTSevere Thunderstorm WarningFSDMinnehaha27 min
Jul 11, 6:56 PM CDTTornado WarningFSDMinnehaha34 min
Jul 11, 6:59 PM CDTTornado WarningFSDMcCook21 min

Nearby

Tornado Warnings in South Dakota, 2000Every tornado warning in 2000Tornadoes 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.