Alert archive / Iowa / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 59, NWS Sioux Falls, SD

June 16, 1990Cherokee County, Ida County, Iowa

NWS Sioux Falls, SD issued this severe thunderstorm warning at Jun 16, 1990, 9:08 PM CDT for Cherokee County, Ida County, Iowa. It was in force for 37 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, 9:08 PM CDT (02:08 UTC)
Expired: Jun 16, 1990, 9:45 PM CDT
In force: 37 min
Issued by: NWS Sioux Falls, SD
Area: Whole counties

Counties Cherokee County, IA, Ida County, IA

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, 9:20 PM CDT	Thunderstorm Wind 50	Cherokee, IA

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

Minneapolis, MN (KSTC), launched 00:00Z, 2.1 hours before the alert went out and 300 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: NaN m above ground
0-6 km bulk shear: 47 kt
0-1 km storm-relative helicity: 98 m²/s²
0-3 km storm-relative helicity: 185 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 170209
SVRSUX
IAC035-093-170245-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SIOUX CITY IA
908 PM CDT SAT JUN 16 1990

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM
WARNING EFFECTIVE UNTIL 930 PM CDT FOR PEOPLE IN THE FOLLOWING
COUNTIES

   IN THE NORTHWEST PART OF IOWA
      CHEROKEE...

   IN THE WEST CENTRAL PART OF IOWA
      IDA...

AT 9:03 PM CDT RADAR SHOWED SEVERE THUNDERSTORMS FROM 40 MILES
SOUTHEAST OF SIOUX CITY NEAR BATTLE CREEK TO 50 MILES NORTHEAST
OF SIOUX CITY OR NEAR CHEROKEE IOWA. THE STORMS WERE MOVING
NORTHEAST AT 35 MPH. THE STORMS WILL MOVE BETWEEN IDA GROVE AND
STORM LAKE BY 9:30 PM CDT

PEOPLE IN IDA AND CHEROKEE COUNTIES SHOULD MOVE TO A PLACE OF
SAFETY 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.

A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA. REMEMBER...
SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES
WITH LITTLE OR NO ADVANCE WARNING...SO BE ON THE LOOKOUT. IF A
TORNADO IS SIGHTED GO TO A BASEMENT SHELTER OR INTERIOR ROOM ON
LOWEST FLOOR. ABANDON CARS AND MOBILE HOMES FOR A REINFORCED
BUILDING.

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 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 16, 7:22 PM CDT, 1 hour 46 minutes before

SDZ012-017-018-019-020-170100-

SPECIAL WEATHER STATEMENT   ...CORRECTED FOR TORNADO WATCH...
NATIONAL WEATHER SERVICE SIOUX FALLS SD
722 PM CDT SAT JUN 16 1990

...TORNADO WATCH IN EFFECT FOR EAST CENTRAL AND SOUTHEAST SOUTH
DAKOTA...SOUTHWEST MINNESOTA AND NORTHWEST IOWA UNTIL 11 PM CDT...

AT 705 PM CDT SCATTERED THUNDERSTORMS WITH VERY HEAVY RAIN CONTINUED
IN SOUTHEAST SOUTH DAKOTA AND NORTHWEST IOWA.

THE THUNDERSTORMS EXTENDED FROM NEAR YANKTON TO NEAR BROOKINGS.

STRONGER THUNDERSTORMS WERE LOCATED NEAR BROOKINGS AND 25 MILES SOUTH/
EAST OF SIOUX FALLS NEAR SIOUX CENTER IOWA.

THESE STORMS ARE CAPABLE OF PRODUCING DANGEROUS CLOUD TO GROUND
LIGHTENING...HAIL AND GUSTY WINDS.
TH1ESE STORMS CAN PRODUCE A TORNADO WITH LITTLE OR NO ADVANCE
WARNING SO BE ON THE LOOKOUT AND LISTEN TO LATER STATEMENTS AND
WARNINGS.

MOVEMENT WAS NORTHEAST AT 35 MILES AN HOUR.
 BERG

Special weather statement, Jun 16, 7:25 PM CDT, 1 hour 43 minutes before

IAZ004-170130-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX CITY IA
725 PM CDT SAT JUN 16 1990

...A FLASH FLOOD WATCH IS IN EFFECT FOR NORTHEAST NEBRASKA AND
   NORTHWEST IOWA TONIGHT...
...A TORNADO WATCH IS IN EFFECT FOR NORTHEAST NEBRASKA UNTIL 9 PM CDT.
...A TORNADO WATCH IS IN EFFECT FOR SOUTHEAST SOUTH DAKOTA AND PART
   OF NORTHWEST IOWA UNTIL 11 PM CDT...

STRONG THUNDERSTORMS WERE MOVING ACROSS SIOUX COUNTY IOWA EARLY THIS
EVENING. AT 7:20 PM CDT RADAR SHOWED THUNDERSTORMS NORTH OF A LINE
FROM CHATSWORTH IOWA TO HOSPERS IOWA. THE STORMS WERE MOVING
NORTHEAST AT 35 MPH.

THE STORM WILL PRODUCE LOCALLY HEAVY RANFALL AND MAY PRODUCE PEA TO
MARBLE SIZE HAIL. PEOPLE IN SIOUX COUNTY SHOULD BE ALERT TO CHANGING
WEATHER CONDITIONS AND BE PREPARED TO MOVE TO A PLACE OF SAFETY IF
THREATENING WEATHER APPROACHES.

HOPPES

Special weather statement, Jun 16, 7:56 PM CDT, 1 hour 12 minutes before

SDZ010-161930-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE HURON SD
750 PM CDT SAT JUN 16 1990

...TORNADO WATCH IN EFFECT FOR PARTS OF EAST CENTRAL AND SOUTHEAST
SOUTH DAKOTA UNTIL 11 PM CDT.

AT 730 PM CDT...A ISOLATED THUNDERSTORM WITH VERY HEAVY RAIN AND HAIL WAS
LOCATED 10 MILES SOUTHEAST OF BROOKINGS NEAR ELKTON. MOVEMENT WAS EAST
AT 50 MILES AN HOUR.

ALSO...A LARGE AREA OF SHOWERS AN NUMEROUS THUNDERSTORMS CONTINUED
OVER EASTERN AND SOUTHEAST SOUTH DAKOTA. THE AREA WAS FROM NORTHEAST
SOUTH DAKOTA TO NORTHEAST NEBRASKA AND EAST OF A LINE FROM SISSETON
TO 30 MILES SOUTHEAST OF PIERRE TO SOUTH OF LAKE ANDES NEAR THE
MISSOURI RIVER. THE STRONGEST THUNDERSTORMSz WERE 30 MILES EAST OF
YANKTON AND 20 MILES NORTH OF SIOUX FALLS. MOVEMENT WAS EAST AT 50
MILES AN HOUR.
MOHR

Special weather statement, Jun 16, 8:01 PM CDT, 1 hour 7 minutes before

SDZ012-170130-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY..CORRECTION...
NATIONAL WEATHER SERVICE HURON SD
750 PM CDT SAT JUN 16 1990

...TORNADO WATCH IN EFFECT FOR PARTS OF EAST CENTRAL AND SOUTHEAST
SOUTH DAKOTA UNTIL 11 PM CDT.

AT 730 PM CDT...A ISOLATED THUNDERSTORM WITH VERY HEAVY RAIN AND HAIL WAS
LOCATED 10 MILES SOUTHEAST OF BROOKINGS NEAR ELKTON. MOVEMENT WAS EAST
AT 50 MILES AN HOUR.

ALSO...A LARGE AREA OF SHOWERS AN NUMEROUS THUNDERSTORMS CONTINUED
OVER EASTERN AND SOUTHEAST SOUTH DAKOTA. THE AREA WAS FROM NORTHEAST
SOUTH DAKOTA TO NORTHEAST NEBRASKA AND EAST OF A LINE FROM SISSETON
TO 30 MILES SOUTHEAST OF PIERRE TO SOUTH OF LAKE ANDES NEAR THE
MISSOURI RIVER. THE STRONGEST THUNDERSTORMS WERE 30 MILES EAST OF
YANKTON AND 20 MILES NORTH OF SIOUX FALLS. MOVEMENT WAS EAST AT 50
MILES AN HOUR.
MOHR

Special weather statement, Jun 16, 8:20 PM CDT, 48 minutes before

SDZ015-016-017-018-019-020-MNZ017-IAZ004-170200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
819 PM CDT SAT JUN 16 1990

...A TORNADO WATCH FOR EASTCENTRAL AND SOUTHEAST SOUTH DAKOTA...
SOUTHWEST MINNESOTA AND NORTHWEST IOWA UNTIL 11PM CDT...

AT 8PM CDT NUMEROUS SHOWERS AND THUNDERSTORMS CONTINUED ACROSS
SOUTHEAST SOUTH DAKOTA...SOUTHWEST MINNESOTA AND NORTHWEST IOWA.
THESE THUNDERSTORMS HAVE A HISTORY OF PRODUCING 2 TO 5 INCHES OF
RAIN IN A SHORT PERIOD OF TIME WITH LOCALIZED AREAS OF FLOODING.

DAMAGING WINDS AND HAIL MAY ACCOMPANY STRONGER THUNDERSTORMS.

THUNDERSTORMS ARE EXPECTED TO CONTINUED ACROSS THE TRI-STATE AREA
THIS EVENING SO KEEP ABREAST TO LOCAL T.V. AND RADIO FOR THE LASTEST
WEATHER UPDATES.

MOVEMENT OF THE THUNDERSTORMS WAS NORTHEAST AT 35 MILES AN HOUR.

Local storm report, Jun 16, 9:07 PM CDT, 1 minute before

STORM REPORT
NATIONAL WEATHER SERVICE HURON SD
905 PM CDT SAT JUN 16 1990

STORM DATA FOR SAT JUN 16 1990...INCOMPLETE

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

155 PM CDT      JONES CO...7 WSW MUDO      1/4 TO 1/2 INCH HAIL AND
                                           HEAVY RAIN...SPOTTER

200 PM CDT      LYMAN CO...DRAPER          1 INCH HAIL AND APPROX. 2
                                           INCHES OF RAIN/STREET
                                           FLOODING...STATE RADIO

210 PM CDT      LYMAN CO...PRESHO          3/4 INCH HAIL...STATE RADIO

215 PM CDT      LYMAN CO...1 W VIVIAN      3/4 TO 1 INCH HAIL CAR
                                           HEADLIGHTS BROKEN...SPOTTER

215 PM CDT      LYMAN CO...PRESHO          1 3/4 INCH HAIL AND HEAVY
                                           RAIN...SPOTTER

215 PM CDT      LYMAN CO...PRESHO          1/2 INCH HAIL...HEAVY RAIN
                                           AND 20 TO 30 MPH WIND

220 PM CDT      LYMAN CO...4 NE VIVIAN     1/2 TO 1 3/4 INCH HAIL...
                                           SPOTTER

325 PM CDT      BUFFALO CO...              1/4 INCH HAIL AND HEAVY
                FORT THOMPSON              RAIN...GAME WARDON

335 PM CDT      BUFFALO CO...10 SE         1/4 INCH HAIL AND HEAVY
                      STEPHAN              RAIN...SPOTTER

430 PM CDT      BEADLE CO...7 W VIRGIL     1/2 INCH HAIL...HEAVY RAIN
                                           AND 40 TO 55 MPH WIND...
                                           SPOTTER

435 PM CDT      JERAULD CO...18 SW HURON   1 INCH HAIL AND HEAVY RAIN...
                                           GENERAL PUBLIC
615 PM CDT      MINER CO...ROSWELL         1 3/4 INCH HAIL...GENERAL
                                           PUBLIC

615 PM CDT      MINER CO...3 S FEDORA      TORNADO...GENERAL PUBLIC

HUTCHEON

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 16, 7:32 PM CDT	Severe Thunderstorm Warning	FSD	Sioux	28 min
Jun 16, 7:39 PM CDT	Flash Flood Warning	FSD	Lyon, Sioux	4 hr
Jun 16, 8:03 PM CDT	Severe Thunderstorm Warning	FSD	Osceola	27 min
Jun 16, 8:26 PM CDT	Severe Thunderstorm Warning	FSD	Monona, Woodbury	64 min

Nearby

Severe Thunderstorm Warnings in Iowa, 1990 Every 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.