Alert archive / South Dakota / Tornado Warnings in 1990

Tornado Warning 6, NWS Sioux Falls, SD

June 16, 1990Clay County, Lincoln County, South Dakota

NWS Sioux Falls, SD issued this tornado warning at Jun 16, 1990, 5:46 PM CDT for Clay County, Lincoln County, South Dakota. It was in force for 29 min. 1 report 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: Jun 16, 1990, 5:46 PM CDT (22:46 UTC)
Expired: Jun 16, 1990, 6:15 PM CDT
In force: 29 min
Issued by: NWS Sioux Falls, SD
Area: Whole counties

Counties Clay County, SD, Lincoln County, SD

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

What was reported inside it

Time	Report	Where	Remark
Jun 16, 6:10 PM CDT	Tornado F1	Clay, 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. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Omaha, NE (KOAX), launched 12:00Z, 10.8 hours before the alert went out and 201 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: 3656 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 241 m²/s²
0-3 km storm-relative helicity: 237 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.

000 
TTAA00 KFSD 162250 COR
TORFSD
SDC027-125-162315-

BULLETIN - EBS ACTIVATION REQUESTED ...CORRECTED FOR SOUTHWEST LINCOLN
TORNADO WARNING                        INSTEAD OF SOUTHWEST TURNER
NATIONAL WEATHER SERVICE SIOUX FALLS SD
546 PM CDT SAT JUN 16 1990

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  615 PM CDT
FOR PEOPLE IN THE FOLLOWING COUNTIES...

IN SOUTHEAST SOUTH DAKOTA
          ...NORTHEASTERN CLAY...SOUTHWESTERN LINCOLN

SOME CITIES INCLUDED IN THIS WARNING ARE...BERESFORD

AT 542 PM CDT RADAR INDICATED A POSSIBLE TORNAD0 35 MILES SOUTH
SOUTHWEST OF SIOUX FALLS OR ABOUT 10 MILES SOUTHWEST OF BERESFORD
SOUTH DAKOTA MOVING TOWARDS THE NORTHEAST AT 35 MPH.

IF YOU ARE IN THE PATH OF A TORNADO...THE SAFEST PLACE IS A
BASEMENT.  GET UNDER A WORKBENCH OR PIECE OF STURDY FURNITURE.
IF NO BASEMENT IS AVAILABLE...SEEK SHELTER IN AN INTERIOR ROOM
SUCH AS A CLOSET ON THE LOWEST FLOOR.  USE BLANKETS...PILLOWS...
O)R CUSHIONS TO COVER YOUR BODY.  AVOID WINDOWS.

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 15, 9:29 PM CDT	Severe Thunderstorm Warning	FSD	Aurora, Davison	46 min
Jun 15, 10:27 PM CDT	Severe Thunderstorm Warning	FSD	Hanson	33 min
Jun 15, 10:59 PM CDT	Severe Thunderstorm Warning	FSD	McCook	31 min
Jun 15, 11:35 PM CDT	Severe Thunderstorm Warning	FSD	Lake	25 min
Jun 16, 1:23 PM CDT	Severe Thunderstorm Warning	FSD	Mellette	52 min
Jun 16, 4:31 PM CDT	Severe Thunderstorm Warning	FSD	Yankton	29 min
Jun 16, 5:21 PM CDT	Severe Thunderstorm Warning	FSD	Clay	39 min
Jun 16, 5:56 PM CDT	Tornado Warning	FSD	Union	34 min

Nearby

Tornado Warnings in South Dakota, 1990 Every tornado warning in 1990 Tornadoes in 1990

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.