Alert archive / South Dakota / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 28, NWS Sioux Falls, SD

June 1, 1990Lake County, McCook County, South Dakota

NWS Sioux Falls, SD issued this severe thunderstorm warning at Jun 1, 1990, 10:35 PM CDT for Lake County, McCook County, South Dakota. It was in force for 40 min.

The area

The counties it named.

The facts

Issued
Jun 1, 1990, 10:35 PM CDT (03:35 UTC)
Expired
Jun 1, 1990, 11:15 PM CDT
In force
40 min
Issued by
NWS Sioux Falls, SD
Area
Whole counties

Counties Lake County, SD, McCook County, SD

The radar

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

The nearest sounding before it

Aberdeen, SD (KHON), launched 00:00Z, 3.6 hours before the alert went out and 149 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 00:00Z on 1990-06-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1812 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 00:00Z on 1990-06-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 139 square meters per square second.193958Sfc1 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
1812 J/kg
Mixed-layer CIN
-17 J/kg
Mixed-layer LCL
1129 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
139 m²/s²
0-3 km storm-relative helicity
158 m²/s²
Significant tornado parameter
1.1
Supercell composite
6.4

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KFSD 020337
SVRFSD
SDC079-087-020415-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1035 PM CDT FRI JUN 1 1990
 
THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1115 PM CDT
FOR PEOPLE IN THE FOLLOWING COUNTIES...
 
IN EAST CENTRAL SOUTH DAKOTA
          ...LAKE
IN SOUTHEAST SOUTH DAKOTA
          ...MCCOOK
 
SOME CITIES INCLUDED IN THIS WARNING ARE MADISON...SALEM...AND
BRIDGEWATER.
 
AT 1032 PM CDT...RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS
EXTENDING FROM 30 MILES NORTHEAST OF MITCHELL NEAR HOWARD TO 15 MILES
SOUTHEAST OF MITCHELL. THIS LINE OF SEVERE THUNDERSTORMS WAS PUSHING
EAST AT 35 MILES AN HOUR AND WILL EFFECT THE AREA FROM MADISON THROUGH
BRIDGEWATER THROUGH 1115 PM CDT.
 
IF YOU ARE IN THE PATH OF THIS STORM...YOU SHOULD GET TO A
REINFORCED SHELTER. A SEVERE THUNDERSTORM PRODUCES WINDS IN EXCESS
OF 60 MPH...HAIL 3A/4 INCH OR LARGER...DEADLY LIGHTNING...AND HEAVY
RAIN THAT CAN QUICKLY FLOOD A LOW LYING AREA.
 
THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE A TORNADO WITH LITTLE
OR NO ADVANCE WARNING SO BE ON THE LOOKOUT.
 
EDDY

What forecasters said that day

The local office's own words before this severe thunderstorm 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 1, 9:39 PM CDT, 56 minutes before
SDZ019-020-020415-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
935 PM CDT FRI JUN 1 1990

...TORNADO WATCH FOR CENTRAL SOUTH DAKOTA UNTIL 10 PM CDT...
...TORNADO WATCH FOR EASTERN SOUTH DAKOTA AND THE ADJACENT COUNTIES OF
SOUTHWEST MINNESOTA AND NORTHWEST IOWA UNTIL 3 AM CDT...

AT 930 PM CDT AN INTENSE THUNDERSTORM WAS INDICATED BY RADAR 5 MILES
WEST OF PICKSTOWN SOUTH DAKOTA ALONG THE MISSOURI RIVER OR ABOUT 50
MILES NORTHWEST OF YANKTON SOUTH DAKOTA. THE THUNDERSTORM WAS MOVING TO
EAST AT 30 MPH.  THIS THUNDERSTORM WILL REACH AVON SOUTH DAKOTA OR ABOUT
35 MILES WEST OF YANKTON BY 10 PM CDT.

PERSONS IN SOUTHERN CHARLES MIX...BON HOMME...AND YANKTON COUNTIES OF
SOUTHEAST SOUTH DAKOTA SHOULD BE ALERT TO THIS THUNDERSTORM MOVING INTO
THEIR AREA.  DEADLY LIGHTNING...HEAVY RAINS AND DAMAGING WINDS MAY BE
PRODUCED BY THIS THUNDERSTORM.  IF THREATENING WEATHER IS SIGHTED GO
IMMEDIATELY TO A REINFORCED SHELTER.
DIRCKSEN
Special weather statement, Jun 1, 9:40 PM CDT, 55 minutes before
IAZ004-020310-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX CITY IA
940 PM CDT FRI JUN 1 1990

AT 935 PM RADAR SHOWED A LINE OF THUNDERSTORMS ACROSS CENTRAL SOUTH
DAKOTA AND CENTRAL NEBRASKA. A TORNADO WATCH WAS IN EFFECT FOR A
PORTION OF EASTERN SOUTH DAKOTA AND NORTHWEST IOWA THAT INCLUDED SIOUX
COUNTY. THERE WAS NO PRECIPITATION IN THE SIOUXLAND AREA.

THE OUTLOOK THROUGH 1015 PM CDT IS FOR A CLOUDY SKY OVER THE SIOUXLAND
AREA. THE@ WIND WILL BE FROM THE SOUTH AT 15 TO 25 MILES AN HOUR WITH
GUSTS TO 35 MILES AN HOUR...AND TEMPERATURES WILL BE IN THE UPPER 70S.

KROPP
Special weather statement, Jun 1, 9:54 PM CDT, 41 minutes before
SDZ004-011-016-017-019-020345-

SPECIAL WEATHER STATEMENT AND WEATHER SUMMARY
NATIONAL WEATHER SERVICE HURON SD
1050 PM CDT FRI JUN 1 1990

...A TORNADO WATCH IS IN EFFECT UNTIL 10 PM CDT FOR CENTRAL SOUTH DAKOTA...
...A TORNADO WATCH IS IN EFFECT UNTIL 3 AM CDT FOR EASTERN SOUTH DAKOTA...

AT 930 PM CDT...A SOLID LINE OF SEVERE THUNDERSTORMS WIRH HEAVY RAIN AND
HAIL WAS MOVING THROUGH EASTERN SOUTH DAKOTA.  THE LINE WAS 40 MILES WIDE
EXTENDING FROM THE NORTH DAKOTA BORDER 30 MILES NORTH NORTHEAST OF
ABERDEEN TO THE NEBRASKA BORDER 65 MILES WEST NORTHWEST OF YANKTON.

THE LINE WAS MOVING TO THE NORTHEAST 45 MILES AN HOUR.

HUTCHEON
Special weather statement, Jun 1, 10:11 PM CDT, 24 minutes before
SDZ011-017--018-019-020-020500-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1010 PM CDT FRI JUN 1 1990

...TORNADO WATCH FOR CENTRAL SOUTH DAKOTA UNTIL 10 PM CDT...
...TORNADO WATCH FOR EASTERN SOUTH DAKOTA AND THE ADJACENT COUNTIES OF
SOUTHWEST MINNESOTA AND NORTHWEST IOWA UNTIL 3 AM CDT...

AT 1000 PM CDT A LINE OF INTENSE THUNDERSTORM WAS INDICATED BY RADAR
OVER SOUTHEAST SOUTH DAKOTA FROM MITCHELL TO NEAR WAGNER OR ABOUT 40
MILES NORTHWEST OF YANKTON SOUTH DAKOTA. THE THUNDERSTORMS WERE MOVING
TO THE EAST AT 30 MPH. BY 11 PM CDT THIS LINE OF THUNDERSTORMS WILL
EXTEND FROM SALEM OR ABOUT 30 MILES NORTHWEST OF SIOUX FALLS TO ABOUT
15 MILES WEST OF YANKTON OR NEAR TABOR.

PERSONS IN SOUTHEAST SOUTH DAKOTA IN THE PATH OF THESE THUNDERSTORMS
SHOULD BE ALERT AS THESE THUNDERSTORMS MOVE NTO THEIR AREA DURING THE
NEXT HOUR.  DEADLY LIGHTNING...HEAVY RAINS AND DAMAGING WINDS MAY BE
PRODUCED BY THESE THUNDERSTORM.  IF THREATENING WEATHER IS SIGHTED GO
TO A REINFORECED SHELTER IMMEDIATELY.
DIRCKSEN
Special weather statement, Jun 1, 10:22 PM CDT, 13 minutes before
IAZ004-020345-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX CITY IA
1020 PM CDT FRI JUN 1 1990

AT 1015 PM CDT RADAR SHOWED A LINE OF THUNDERSTORMS ACROSS EASTERN
SOUTH DAKOTA AND CENTRAL NEBRASKA. A TORNADO WATCH WAS IN EFFECT TIL
300 AM CDT FOR A PORTION OF EASTERN SOUTH DAKOTA AND NORTHWEST IOWA
THAT INCLUDED SIOUX COUNTY. THERE WAS NO PRECIPITATION IN THE
SIOUXLAND AREA.

THE OUTLOOK THROUGH 1045 PM CDT IS FOR A CLOUDY SKY OVER THgE SIOUXLAND
AREA. THE WIND WILL BE FROM THE SOUTH AT 15 TO 30 MILES AN HOUR WITH
HIGHER GUSTS. TEMPERATURES WILL BE IN THE MIDDLE 70S.

KROPP
Special weather statement, Jun 1, 10:23 PM CDT, 12 minutes before
SDZALL-020400-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1015 PM CDT FRI JUN 1 1990

...TORNADO WATCH FOR EASTERN SOUTH DAKOTA AND THE ADJACENT COUNTIES OF
SOUTHWEST MINNESOTA AND NORTHWEST IOWA UNTIL 3 AM CDT...

THE TORNADO WATCH FOR CENTRAL SOUTH DAKOTA HAS EXPIRED. THE LINE OF
THUNDERSTORMS THAT PROMPTED THE TORNADO WATCH HAS MOVED INTO EASTERN
SOUTH DAKOTA. A TORNADO WATCH IS IN EFFECT UNTIL 3 AM CDT FOR EASTERN
SOUTH- DAKOTA.

PERSONS IN EASTERN SOUTH DAKOTA SHOULD REMAIN ALERT TO THIS LINE OF
THUNDERSTORMS. REMAIN TUNED TO YOUR LOCAL MEDIA AND/OR NOAA WEATHER
RADIO FOR THE LATEST WEATHER INFORMATION.

EDDY

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 1, 7:57 PM CDTTornado WarningFSDBrule33 min
Jun 1, 8:55 PM CDTSevere Thunderstorm WarningFSDAurora, Brule35 min
Jun 1, 10:07 PM CDTSevere Thunderstorm WarningFSDDavison, Douglas, Hanson, Hutchinson53 min
Jun 1, 10:07 PM CDTSevere Thunderstorm WarningFSDCharles Mix53 min
Jun 2, 4:02 AM CDTSevere Thunderstorm WarningFSDMinnehaha23 min

Nearby

Severe Thunderstorm Warnings in South Dakota, 1990Every severe thunderstorm warning 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; the sounding from the Mesonet's radiosonde archive.