Alert archive / South Dakota / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 28, NWS Sioux Falls, SD
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.
- 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
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.
EDDYWhat 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.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 1, 7:57 PM CDT | Tornado Warning | FSD | Brule | 33 min |
| Jun 1, 8:55 PM CDT | Severe Thunderstorm Warning | FSD | Aurora, Brule | 35 min |
| Jun 1, 10:07 PM CDT | Severe Thunderstorm Warning | FSD | Davison, Douglas, Hanson, Hutchinson | 53 min |
| Jun 1, 10:07 PM CDT | Severe Thunderstorm Warning | FSD | Charles Mix | 53 min |
| Jun 2, 4:02 AM CDT | Severe Thunderstorm Warning | FSD | Minnehaha | 23 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.