Alert archive / South Dakota / Tornado Warnings in 2000

Tornado Warning 2, NWS Sioux Falls, SD

May 11, 2000Hutchinson County, South Dakota

NWS Sioux Falls, SD issued this tornado warning at May 11, 2000, 4:36 AM CDT for Hutchinson County, South Dakota. 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: May 11, 2000, 4:36 AM CDT (09:36 UTC)
Expired: May 11, 2000, 5:00 AM CDT
In force: 24 min
Issued by: NWS Sioux Falls, SD
Area: Whole counties

County Hutchinson County, SD

The radar

The Sioux Falls radar (KFSD), 87 km from the middle of the area, began a volume at 09:38 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

Time	Report	Where	Remark
May 11, 4:40 AM CDT	Thunderstorm Wind 52 E	Kaylor, SD	Thunderstorm winds caused tree damage, and blew over two grain bins.
May 11, 4:40 AM CDT	Thunderstorm Wind 52 E	Tripp, SD	Thunderstorm winds caused tree damage. The amount of damage was not known.
May 11, 4:58 AM CDT	Tornado F0	Menno, SD	A tornado broke one foot diameter trees, tossed hay bales, and broke a few light poles.

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.

Issued	Product	Office	Lasted
May 11, 1:30 AM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Aberdeen, SD (KABR), launched 00:00Z, 9.6 hours before the alert went out and 181 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1405 m above ground
0-6 km bulk shear: 83 kt
0-1 km storm-relative helicity: 25 m²/s²
0-3 km storm-relative helicity: 127 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

038 
WFUS53 KFSD 110937
TORFSD
SDC067-111000-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
436 AM CDT THU MAY 11 2000

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A

* TORNADO WARNING FOR...
  HUTCHINSON COUNTY IN SOUTHEAST SOUTH DAKOTA

* UNTIL 500 AM CDT

* AT 436 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  TORNADO 5 MILES SOUTH OF PARKSTON...OR ABOUT 28 MILES NORTHEAST OF
  LAKE ANDES...MOVING EAST AT 45 MPH.

* THE TORNADO WILL BE NEAR...
  CLAYTON AROUND 500 AM CDT
  FREEMAN AROUND 505 AM CDT

THIS WARNING REPLACES THE SEVERE THUNDERSTORM WARNING PREVIOUSLY
ISSUED FOR THE WARNED AREA.

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.

REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY
WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST
OFFICE IN SIOUX FALLS.

The office that day

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

Issued	Product	Office	Counties	Lasted
May 11, 2:48 AM CDT	Severe Thunderstorm Warning	FSD	Gregory	42 min
May 11, 3:18 AM CDT	Severe Thunderstorm Warning	FSD	Charles Mix, Gregory	42 min
May 11, 3:40 AM CDT	Severe Thunderstorm Warning	FSD	Douglas	50 min
May 11, 4:15 AM CDT	Severe Thunderstorm Warning	FSD	Hutchinson	30 min
May 11, 6:03 AM CDT	Severe Thunderstorm Warning	FSD	Minnehaha	27 min

Nearby

Tornado Warnings in South Dakota, 2000 Every tornado warning in 2000 Tornadoes 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.