Severe Thunderstorm Warning 55, NWS Sioux Falls, SD

Issued

Jun 21, 1986, 7:26 PM CDT (00:26 UTC)

Expired

Jun 21, 1986, 8:30 PM CDT

In force

64 min

Issued by

NWS Sioux Falls, SD

Area

Whole counties

County Lake County, SD

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

000 
TTAA00 KFSD 220026
SVRFSD
SDC079-220130-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
726 PM CDT SAT JUN 21 1986

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 830 PM CDT FOR PEOPLE IN THE FOLLOWING 
COUNTY OF

EAST CENTRAL SOUTH DAKOTA...LAKE

SOME OF THE CITIES INCLUDED IN SOUTHEASTERN SOUTH DAKOTA ARE
MADISON..RAMONA..AND RUTLAND.

AT 725 PM CDT  RADAR INDICATED A SEVERE THUNDERSTORM  35 MILES
NORTHWEST OF SIOUX FALLS NEAR WINFRED...AND WAS MOVING EAST AT
20 MPH.

IF YOU ARE IN THE PATH OF THIS STORM..YOU SHOULD GET TO A REINFORCED
SHELTER. A SEVERE THUNDERSTORM PRODUCES DAMAGING WINDS IN EXCESS OF
60 MPH..HAIL 3/4 INCH OR LARGER..DEADLY LIGHTNING..AND HEAVY RAIN
THAT CAN QUICKLY FLOOD A LOW LYING AREA.

THESE STORMS CAN AND OCCASIONALLY DO PRODUCE A TORNADO WITH LITTLE OR
NO ADVANCE WARNING SO BE ON THE LOOKOUT.

KAPELA

In the hours before

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE HURON SD
140 PM CDT SAT JUN 21 1986

AT 130 PM CDT...NUMEROUS SHOWERS AND THUNDERSTORMS...SOME WITH
HEAVY RAIN...CONTINUED OVER NORTHEAST SOUTH DAKOTA AND SOUTHEAST
NORTH DAKOTA. THE SHOWERS AND THUNDERSTORMS WERE IN A 25 MILE
WIDE LINE FROM NEAR FARGO NORTH DAKOTA TO 15 MILES NORTH OF HURON
SOUTH DAKOTA. ALTHOUGH THESE STORMS HAD WEAKENED...HEAVY RAIN AND
STRONG WIND IS STILL POSSIBLE WITH THE LINE.

THE LINE WAS MOVING EAST AT 25 MILES AN HOUR.

ALSO...NUMEROUS LIGHT RAINSHOWERS HAD DEVELOPED OVER CENTRAL SOUTH
DAKOTA. THE SHOWERS WERE IN A 10 MILE WIDE AREA FROM 35 MILES SOUTH
WEST OF ABERDEEN TO 45 MILES yWEST OF HURON.

THE MOVEMENT OF THESE SHOWERS HAD NOT YET BEEN DETERMINED.

SPRINGER

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
715 PM CDT SAT JUN 21 1986

...SEVERE THUNDERSTORM WATCH 284 CONTINUES UNTIL 1000 PM FOR MUCH OF
EASTERN SOUTH DAKOTA...

AT 715 PM CDT AN INTENSE THUNDERSTORM WAS LOCATED 35 MILES NORTHEAST
OF SIOUX FALLS JUST EAST OF HOWARD. THIS INTENSE THUNDERSTORM WAS
MOVING EAST AT 20 MPH AND WAS LIKELY PRODUCING VERY HEAVY RAINS..
GUSTY WINDS TO PERHAPS 45 MPH..AND SMALL HAIL. THIS STORM WILL HIT THE
MADISON CITY AREA BY 800 PM CDT...BUT WILL ALSO AFFECT OTHER CITIES IN
LAKE COUNTY.
KAPELA

Severe Thunderstorm Warnings in South Dakota, 1986Every severe thunderstorm warning in 1986

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.