Alert archive / Iowa / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 86, NWS Sioux Falls, SD

June 28, 1990Cherokee County, O'Brien County, Plymouth County, Iowa

NWS Sioux Falls, SD issued this severe thunderstorm warning at Jun 28, 1990, 1:37 AM CDT for Cherokee County, O'Brien County, Plymouth County, Iowa. It was in force for 53 min.

The area

The counties it named.

The facts

Issued
Jun 28, 1990, 1:37 AM CDT (06:37 UTC)
Expired
Jun 28, 1990, 2:30 AM CDT
In force
53 min
Issued by
NWS Sioux Falls, SD
Area
Whole counties

Counties Cherokee County, IA, O'Brien County, IA, Plymouth County, IA

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

Omaha, NE (KOAX), launched 00:00Z, 6.6 hours before the alert went out and 176 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 1990-06-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 1990-06-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 73 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
3614 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
73 m²/s²
0-3 km storm-relative helicity
202 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 KSUX 280643 COR
SVRSUX
IAC035-149-141-280745-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING...CORRECTED FOR TIME OF EXPIRATION...
NATIONAL WEATHER SERVICE SIOUX CITY IA
137 AM CDT THU JUN 28 1990

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM
WARNING EFFECTIVE UNTIL 230 AM CDT FOR PEOPLE IN THE FOLLOWING
COUNTIES

   IN THE NORTHWEST PART OF IOWA
      CHEROKEE...EASTERN PLYMOUTH...OBRIEN

AT 130 AM CDT RADAR SHOWED SEVERE THUNDERSTORMS LOCATED BETWEEN
MARCUS AND PRIMGHAR...45 MILES NORTHEAST OF SIOUX CITY. OTHER
SEVERE STORMS IN SIOUX COUNTY WILL BE MOVING INTO OBRIEN COUNTY
SHORTLY. THE OBRIEN COUNTY SHERIFF DEPARTMENT REPORTED 65 MILE
AN HOUR WIND GUSTS AT 125 AM. THESE STORMS WERE MOVING SOUTHEAST
AT 35 MILES AN HOUR. PERSONS IN THE TOWNS OF MARCUS...CHEROKEE
AND PRIMGHAR AS WELL AS THE SURROUNDING AREA SHOULD TAKE SHELTER
IMMEDIATELY.

REMEMBER...SEVERE THUNDERSTORMS CAN PRODUCE DAMAGING WINDS IN EXCESS
OF 60 MPH...LARGE HAIL...DEADLY LIGHTNING...AND HEAVY RAINS THAT CAN
QUICKLY FLOOD LOW LYING AREAS. IF YOU ARE IN THE PATH OF THIS STORM
TAKE SHELTER IN A REINFORCED BUILDING IMMEDIATELY.

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

DROZD

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

Local storm report, Jun 27, 11:20 PM CDT, 2 hours 17 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE HURON SD
1120 PM CDT WED JUN 27 1990

STORM DATA FOR WED JUN 27TH

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

1925 CDT      BEADLE COUNTY...HURON           1 INCH HAIL...NWS EMPLOYEE

2145 CDT      KINGSBURY COUNTY...4 W OLDHAM   GOLFBALL-SIZE HAIL...
                                              NWS SPOTTER

END
ORGISH
Special weather statement, Jun 27, 11:50 PM CDT, 1 hour 47 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE HURON SD
1145 PM CDT WED JUN 27 1990

...SEVERE THUNDERSTORM IN EFFECT FOR PARTS OF NORTHERN SOUTH DAKOTA
UNTIL 4 AM CDT AND PARTS OF SOUTHEAST SOUTH DAKOTA UNTIL 5 AM CDT...

AT 1125 PM CDT...NUMEROUS THUNDERSTORMS...SOME WITH VERY HEAVY RAIN
WERE OCCURRING OVER PARTS OF SOUTHEAST SOUTH DAKOTA.

THE STRONGEST THUNDERSTORMS WERE LOCATED FROM LAKE COUNTY SOUTHEAST TO
SOUTHEAST MI*NNEHAHA COUNTY.

MOVEMENT WAS EAST AT 40 MILES AN HOUR.

MILLER
Special weather statement, Jun 28, 12:08 AM CDT, 1 hour 29 minutes before
IAZ001-004-005-280600-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX CITY IA
1207 AM CDT THU JUN 28 1990

...SEVERE THUNDERSTORM WATCH IN EFFECT FOR NORTHWEST IOWA...NORTHEAST
NEBRASKA AND SOUTHEAST SOUTH DAKOTA UNTIL 500 AM CDT...

AT 1205 AM CDT A STRONG THUNDERSTORM WAS JUST NORTH OF HAWARDEN IOWA OR
45 MILES NORTH OF SIOUX CITY. MOVEMENT WAS SOUTHEAST AT 30 MILES AN
HOUR. HEAVY RAIN...LARGE HAIL...GUSTY WIND AND DEADLY CLOUD TO GROU&ND
LIGHTNING WILL LIKELY OCCUR IN SIOUX COUNTY AND NORTHEAST UNION COUNTY.

DROZD
Local storm report, Jun 28, 12:43 AM CDT, 54 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
100 AM CDT THU JUN 28 1990

STORM DATA FOR WED JUN 28 AND THU JUN 29 1990

 TIME          COUNTY...LOCATION AND STATE   CHARACTER OF STORM...DAMAGE
.......................................................................

 915 PM CDT   GRANT COUNTY...MILBANK         64 MPH WINDS.
              RADIO STATION
 932 PM THRU  MINNEHAHA COUNTY...SIOUX       MARBLE TO 1 INCH HAIL...
 935 PM CDT   FALLS
 940 PM CDT   MINNEHAHA COUNTY...WEST        PEA TO MARBLE SIZE HAIL.
              SIDE SIOUX FALLS
 942 PM CDT   MINNEHAHA COUNTY...SOUTH       3/4 INCH HAIL.
              SIDE SIOUX FALLS
 1032 PM CDT  LAKE COUNTY...LAKE BRANT       1 TO 11/2 INCH HAIL. WINDS
                                             OVR 40 MPH. HEAVY RAIN.
                                             POOR VISIBILITY.
 1041 PM CDT  MOODY-LAKE COUNTY BORDER       3/4 INCH HAIL 50 MPH WIND.
              NEAR CHESTER
 1042 PM CDT  LAKE COUNTY...8 NW MADISON     3/4 INCH HAIL.
 1044 PM CDT  N OF HARTFORD                  THREE SEPERATE FUNNEL
                                             CLOUDS APPARENTLY MOVING
                                             TOWARD HARTFORD.
 1052 PM CDT  MINNEHAHA COUNTY...2 MI NORTH  HAIL.
              OF LYONS

 1054 PM CDT  MINNEHAHA COUNTY...COLTON      ESTIMATED WINDS 60 MPH.
 1055 PM CDT  LAKE COUNTY...CHESTER          1.35 IN RAIN. BASEBALL SIZE
                                             HAIL. STRONG WINDS.
 1055 PM CDT  LAKE COUNTY...3 S CHESTER      BIG TREES DOWN.
 1055 PM CDT  MINNEHAHA...CROOKS             1 INCH HAIL.
 1104 PM CDT  MINNEHAHA...CROOKS             LARGE HAIL. WIND 35 TO 40
                                             MPH. BRANCHES DOWN.
 1105 PM CDT MINNEHAHA COUNTY...WEST SIDE    3/4 INCH HAIL.
             OF SIOUX FALLS
 1112 PM CDT MINNEHAHA COUNTY...SIOUX        71 MPH WINDS.
             FALLS AIRPORT
 1122 PM CDT ROCK sCOUNTY MN...LAVERNE        60 MPH WINDS.
 1123 PM CDT MINNEHAHA COUNTY...SE OF SIOUX  HAIL BREAKING WINDOWS.
             FALLS KSSO TRANSMITTER          DRIFTS OF 3/4 INCH HAIL.
BIER
Special weather statement, Jun 28, 12:52 AM CDT, 45 minutes before
SDZ003-004-015-018-280630-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE HURON SD
1250 AM CDT WED JUN 27 1990

...SEVERE THUNDERSTORM WATCH IN EFFECT FOR PARTS OF NORTHERN SOUTH DAKOTA
UNTIL 4 AM CDT AND PARTS OF SOUTHEAST SOUTH DAKOTA UNTIL 5 AM CDT...

AT 1225 AM CDT...ISOLATED THUNDERSTORMS WERE OCCURRING OVER SOUTH
CENTRAL AND SOUTHEAST SOUTH DAKOTA. THE THUNDERSTORMS WERE 10 MILES
SOUTH OF WINNER AND NEAR SIOUX FALLS.

THE STRONGEST THUNDERSTORM WAS NEAR SIOUX FALLS AND WAS MOVING
SOUTHEAST AT 40 MILES AN HOUR.

ALSO...SCATTERED THUNDERSTORMS WITH LIGHT RAIN WERE OVER NORTH CENTRAL
SOUTH DAKOTA IN THE AREA ALONG AND 60 MILES EITHER SIDE OF MISSOURI
RIVER FROM THE NORTH DAKOTA LINE TO PIERRE.

MOVEMENT OF THESE HAVE NOT YET BEEN DETERMINED.
MOHR
Local storm report, Jun 28, 1:09 AM CDT, 28 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
110 AM CDT THU JUN 28 1990

STORM DATA FOR WED JUN 28 AND THU JUN 29 1990

 TIME          COUNTY...LOCATION AND STATE   CHARACTER OF STORM...DAMAGE
.......................................................................

 1115 PM CDT  MINNEHAHA...3 MI E FSD         ANTENNA DOWN. ROOF OFF
                                             SHED.
 1120 PM CDT  MINNEHAHA...N OF COLTON        WATER OVER ROADS.
 1128 PM CDT  MINNEHAHA...CNTRL SIOUX FALLS  2 INCHES OF RAIN.
 1129 PM CDT  MINNEHAHA...CROOKS             HOUSE COMPLETELY BURNED UP
                                             BY LIGHTNING.
 1130 PM CDT  MINNEHAHA...4 WNW CANTON       2.20 INCH RAIN. 60 MPH
                                             WINDS. SMALL HAIL.
 1134 PM CDT  MINNEHAHA...NORTHERN           WATER UP OVER CURB.
              SIOUX FALLS
 1143 PM CDT  MINNEHAHA...NORTHERN           15 TO 20 INCHES OF WATER
                                             ON ROAD.
 1145 PM CDT  MINNEHAHA...CENTRAL            DOWNED TREE OBSTRUCTING
              SIOUX FALLS.                   ROAD.
 1155 PM CDT  MINNEHAHA...WALL LAKE          18 INCH TREE UPROOTED
                                             OVERLAYING ROAD.
 1245 AM CDT  MINNEHAHA...SOUTHERN SIOUX     21/2 TO 3 INCHES OF RAIN.
              FALLS
 1245 AM CDT  MINNEHAHA...7 SW SIOUX         3/4 INCH HAIL.
              FALLS
 1250 PM CDT  MINNEHAHA...EASTERN SIOUX      1.92 INCHES RAIN.
              FALLS

BIER

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 27, 9:34 PM CDTSevere Thunderstorm WarningFSDLyon56 min
Jun 27, 11:56 PM CDTSevere Thunderstorm WarningFSDLyon, Sioux34 min
Jun 28, 12:30 AM CDTSevere Thunderstorm WarningFSDLyon, Sioux30 min
Jun 28, 12:49 AM CDTSevere Thunderstorm WarningFSDCherokee, O'Brien, Plymouth41 min
Jun 28, 12:58 AM CDTSevere Thunderstorm WarningFSDLyon, Osceola, Sioux32 min
Jun 28, 1:26 AM CDTSevere Thunderstorm WarningFSDLyon, Sioux34 min
Jun 28, 2:08 AM CDTSevere Thunderstorm WarningFSDIda37 min
Jun 28, 2:36 AM CDTSevere Thunderstorm WarningFSDCherokee, Ida69 min
Jun 28, 2:36 AM CDTSevere Thunderstorm WarningFSDO'Brien69 min
Jun 28, 2:58 AM CDTSevere Thunderstorm WarningFSDSioux32 min
Jun 28, 3:47 AM CDTSevere Thunderstorm WarningFSDCherokee, O'Brien58 min

Nearby

Severe Thunderstorm Warnings in Iowa, 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.