Alert archive / South Dakota / Tornado Warnings in 1992

Tornado Warning 17, NWS Sioux Falls, SD

June 16, 1992Union County, South Dakota

NWS Sioux Falls, SD issued this tornado warning at Jun 16, 1992, 9:20 PM CDT for Union County, South Dakota. It was in force for 25 min.

The area

The counties it named.

The facts

Issued
Jun 16, 1992, 9:20 PM CDT (02:20 UTC)
Expired
Jun 16, 1992, 9:45 PM CDT
In force
25 min
Issued by
NWS Sioux Falls, SD
Area
Whole counties

County Union County, SD

The nearest sounding before it

Omaha, NE (KOVN), launched 00:00Z, 2.3 hours before the alert went out and 170 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, Omaha, NE at 00:00Z on 1992-06-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 4794 joules per kilogram.LCLEL10008507005003002001001 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, Omaha, NE at 00:00Z on 1992-06-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 238 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
4794 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
1163 m above ground
0-6 km bulk shear
50 kt
0-1 km storm-relative helicity
238 m²/s²
0-3 km storm-relative helicity
449 m²/s²
Significant tornado parameter
8.2
Supercell composite
39.8

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSUX 170220
TORSUX
SDC127-170245-

BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED 
TORNADO WARNING 
NATIONAL WEATHER SERVICE SIOUX CITY IA
920 PM CDT TUE JUN 16 1992

THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING 
EFFECTIVE UNTIL 945 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTY

   IN THE SOUTHEAST PART OF SOUTH DAKOTA
      UNION

A 919 PM CDT FUNNEL CLOUDS WERE REPORTED NORTH OF NEWCASTLE
NEBRASKA. MOVEMENT WAS EAST AT 35 MILES AN HOUR.

THE STORM WILL MOVE BETWEEN ELK POINT AND SPINK SOUTH DAKOTA
BY 930 PM.

THIS IS A DANGEROUS STORM. TAKE COVER IMMEDIATELY. IF YOU ARE IN A
STRONG BUILDING GO TO AN INTERIOR ROOM ON THE LOWEST FLOOR. AVOID
WINDOWS. ABANDON CARS AND MOBILE HOMES FOR A REINFORCED BUILDING OR
GET INTO A DITCH OR DEPRESSION...COVER YOUR HEAD WITH YOUR HANDS.

ASK THE NEAREST LAW ENFORCEMENT AGENCY TO RELAY YOUR REPORTS OF
SEVERE WEATHER TO THE NATIONAL WEATHER SERVICE.

HOPPES

What forecasters said that day

The local office's own words before this tornado warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, Jun 16, 7:07 PM CDT, 2 hours 13 minutes before
SDZ012-015>020-160100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
705 PM CDT TUE JUN 16 1992

...TORNADO WATCH FOR EASTERN SOUTH DAKOTA THIS EVENING...

A TORNADO WATCH REMAIN IN EFFECT THIS EVENING FOR ALL OF EASTERN SOUTH
DAKOTA INCLUDING THE CITY OF SIOUX FALLS.

AT 700 PM CDT RADAR INDICATED A LINE OF THUNDERSTORMS FROM 100 MILES
NORTHWEST OF SIOUX FALLS TO 100 MILES SOUTHWEST OF SIOUX FALLS.
THIS LINE WAS MOVING EAST/NORTHEAST AT 35 MPH.

THIS LINE IS EXPECTED TO HOLD TOGETHER AS IT MOVES EASTWARD AND MAY
ALSO INTENSIFY.

AT THE CURRENT SPEED...THIS LINE WILL MOVE THROUGH THE CITY OF SIOUX
FALLS BETWEEN 9 PM AND 10 PM CDT.
<
PERSONS IN THE PATH OF THESE STOARMS SHOULD BE ON THE LOOKOUT FOR
TORNADOES...LARGE HAIL...GUSTY WINDS...AND VERY HEAVY RAINS.
STAY TUNED TO RADIO OR TV FOR THE LATEST WEATHER DEVELOPMENTS.
Special weather statement, Jun 16, 7:18 PM CDT, 2 hours 2 minutes before
IAZ001-004-005-170115-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX CITY IA
718 PM CDT TUE JUN 16 1992

...A TORNADO WATCH IS IN EFFECT FOR THE SIOUXLAND AREA UNTIL
11 PM CDT...

NO THUNDERSTORMS WERE IN THE SIOUXLAND AREA AT 717 PM. HOWEVER
THUNDERSTORMS ARE EXPECTED TO MOVE INTO WESTERN IOWA LATER THIS EVENING.
SOME STORMS WILL LIKELY PRODUCE DAMAGING WINDS..LARGE HAIL...AND
TORNADOES.

YOU SHOULD REVIEW SAFETY RULES SO YOU WILL KNOW WHAT ACTION TO TAKE
IF A TORNADO OR SEVERE THUNDERSTORM OCCURS OR A WARNING IS ISSUED.
STAY TUNED TO YOUR NATIONAL WEATHER SERVICE OR YOUR LOCAL MEDIA
FOR THE LATEST STATEMENTS AND ADVISORIES.

HOPPES
Local storm report, Jun 16, 7:24 PM CDT, 1 hour 56 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
720 PM CDT TUE JUN 16 1992

STORM DATA FOR TUESDAY JUNE 16 1992

 TIME          COUNTY                        CHARACTER OF STORM...DAMAGE
.......................................................................

700 PM         GREGORY                       BONESTEEL WIND GUST TO 60
                                             MPH DOWNED TREES AND
                                             SCHOOL ROOF.  1.12 INCHES
                                             RAIN IN LESS THAN 20 MIN.
                                             SOME GOLF BALL HAIL.

710PM          GREGORY                       HIGH LINE POWER LINES DOWN
               o                              WIND GREATER THAN 60 MPH.
Local storm report, Jun 16, 7:40 PM CDT, 1 hour 40 minutes before
STORM REPORT...CORRECTION TO INCLUDE TOWNS
NATIONAL WEATHER SERVICE SIOUX FALLS SD
738 PM CDT TUE JUN 16 1992

STORM DATA FOR TUESDAY JUNE 16 1992

 TIME          COUNTY                        CHARACTER OF STORM...DAMAGE
.......................................................................

700 PM         GREGORY                       BONESTEEL WIND GUST TO 60
                                             MPH DOWNED TREES AND
                                             SCHOOL ROOF.  1.12 INCHES
                                             RAIN IN LESS THAN 20 MIN.
                                             SOME GOLF BALL HAIL.

710PM          GREGORY                       FAIRFAX...HIGH LINE POWER
                                             LINES DOWN..WIND TO 60 MPH.
Special weather statement, Jun 16, 7:43 PM CDT, 1 hour 37 minutes before
SDZ012-015>020-160130-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
740 PM CDT TUE JUN 16 1992

...TORNADO WATCH FOR EASTERN SOUTH DAKOTA THIS EVENING...

AT 735 PM CDT RADAR INDICATED A LINE OF THUNDERSTORMS EXTENDING FROM
85 MILES SOUTHWEST OF SIOUX FALLS TO 100 MILES NORTHWEST OF SIOUX FALLS.
THIS LINE WAS MOVING NORTHEAST AT 35 MPH.

AHEAD OF THIS LINE...THUNDERSTORMS WITH VERY HEAVY RAIN AND SMALL HAIL
WERE DEVELOPING IN HUTCHINSON AND BON-HOMME COUNTIES OF SOUTH DAKOTA.
OTHER THUNDERSTORMS WITH VERY HEAVY RAIN AND HAIL WERE LOCATED IN
BROOKINGS COUNTY. THESE STORMS WERE ALSO MOVING NORTHEAST AT 35 MILES
PER AN HOUR.

AT THE CURRENT SPEED...THIS LINE WILL MOVE THROUGH THE CITY OF SIOUX
FALLS BETWEEN 9 PM AND 10 PM CDT.
<
SEVERAL REPORTS OF TORNADOES...LARGE HAIL...AND VERY HEAVY RAINS
HAVE BEEN RECEIVED BY THE NATIONAL WEATHER SERVICE DURING THE
EVENING.

PERSONS IN THE PATH OF THESE STORMS SHOULD BE O{N THE LOOKOUT FOR
TORNADOES...LARGE HAIL...GUSTY WINDS...AND VERY HEAVY RAINS.
STAY TUNED TO RADIO OR TV FOR THE LATEST WEATHER DEVELOPMENTS.

GEELHART
Special weather statement, Jun 16, 8:36 PM CDT, 44 minutes before
IAZ001-004-005-170215-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX CITY IA
836 PM CDT TUE JUN 16 1992

...A TORNADO WATCH IS IN EFFECT FOR THE SIOUXLAND AREA UNTIL
11 PM CDT...

THUNDERSTORMS WERE BEGINNING TO DEVELOP SOUTH OF SIOUX CITY OR 5 MILES
SOUTH OF ONAWA IOWA AT 836 PM. MOVEMENT WAS NORTHEAST AT 40 MILES
AN HOUR.

IF THREATENING WEATHER APPROACHES YOU SHOULD BE PREPARED TO MOVE TO
A SAFE PLACE QUICKLY.

STAY TUNED TO YOUR NATIONAL WEATHER SERVICE OR YOUR LOCAL MEDIA
FOR THE LATEST STATEMENTS AND ADVISORIES.

HOPPES

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 16, 7:02 PM CDTTornado WarningFSDCharles Mix43 min
Jun 16, 7:05 PM CDTSevere Thunderstorm WarningFSDBrookings40 min
Jun 16, 8:09 PM CDTTornado WarningFSDMcCook20 min
Jun 16, 8:19 PM CDTSevere Thunderstorm WarningFSDHutchinson41 min
Jun 16, 8:40 PM CDTSevere Thunderstorm WarningFSDTurner50 min
Jun 16, 8:45 PM CDTSevere Thunderstorm WarningFSDClay, Yankton45 min
Jun 16, 8:53 PM CDTSevere Thunderstorm WarningFSDMcCook, Minnehaha52 min
Jun 16, 8:59 PM CDTTornado WarningFSDClay31 min
Jun 16, 9:01 PM CDTSevere Thunderstorm WarningFSDLincoln44 min
Jun 16, 9:11 PM CDTSevere Thunderstorm WarningFSDBrookings, Moody49 min

Nearby

Tornado Warnings in South Dakota, 1992Every tornado warning in 1992Tornadoes in 1992

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.