Alert archive / Minnesota / Tornado Warnings in 2000

Tornado Warning 39, NWS Sioux Falls, SD

August 7, 2000Jackson County, Minnesota

NWS Sioux Falls, SD issued this tornado warning at Aug 7, 2000, 9:06 PM CDT for Jackson County, Minnesota. It was in force for 24 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
Aug 7, 2000, 9:06 PM CDT (02:06 UTC)
Expired
Aug 7, 2000, 9:30 PM CDT
In force
24 min
Issued by
NWS Sioux Falls, SD
Area
Whole counties

County Jackson County, MN

The radar

The Sioux Falls radar (KFSD), 127 km from the middle of the area, began a volume at 02:07 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
Aug 7, 9:10 PM CDTTornado F1Bergen, MNA tornado caused damage to farm buildings and crops. The amount of crop damage was not determined.
Aug 7, 9:22 PM CDTTornado F1Bergen, MNA tornado caused damaged to farm buildings.
Aug 7, 9:25 PM CDTTornado F1Lakefield, MNA tornado caused extensive damage to a family owned dairy farm.

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
Aug 7, 6:45 PM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 2.1 hours before the alert went out and 180 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, Minneapolis, MN at 00:00Z on 2000-08-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1134 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 00:00Z on 2000-08-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 63 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
1134 J/kg
Mixed-layer CIN
-65 J/kg
Mixed-layer LCL
1449 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
63 m²/s²
0-3 km storm-relative helicity
258 m²/s²
Significant tornado parameter
0.3
Supercell composite
6.1

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KFSD 080206
TORFSD

MNC063-080230-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
906 PM CDT MON AUG 7 2000

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A

* TORNADO WARNING FOR...
  JACKSON COUNTY IN SOUTHWEST MINNESOTA

* UNTIL 930 PM CDT

* AT 906 PM CDT...WEATHER SPOTTERS REPORTED A TORNADO 5 MILES SOUTH
  OF BERGEN...OR ABOUT 7 MILES NORTH OF JACKSON...MOVING NORTHEAST AT
  20 MPH.

* THE TORNADO WILL BE NEAR...
  BERGEN AROUND 915 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
Aug 7, 7:41 PM CDTSevere Thunderstorm WarningFSDPipestone, Rock34 min
Aug 7, 8:15 PM CDTSevere Thunderstorm WarningFSDPipestone, Rock30 min
Aug 7, 8:32 PM CDTSevere Thunderstorm WarningFSDMurray28 min
Aug 7, 8:40 PM CDTSevere Thunderstorm WarningFSDLyon35 min
Aug 7, 8:47 PM CDTSevere Thunderstorm WarningFSDCottonwood, Jackson28 min
Aug 7, 8:58 PM CDTSevere Thunderstorm WarningFSDMurray17 min
Aug 7, 9:14 PM CDTSevere Thunderstorm WarningFSDCottonwood, Murray31 min
Aug 7, 9:46 PM CDTSevere Thunderstorm WarningFSDCottonwood, Jackson29 min

Nearby

Tornado Warnings in Minnesota, 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.