Alert archive / Iowa / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 80, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this severe thunderstorm warning at Jun 27, 1990, 11:56 PM CDT for Lyon County, Sioux County, Iowa; Lincoln County, South Dakota. It was in force for 34 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 27, 1990, 11:56 PM CDT (04:56 UTC)
- Expired
- Jun 28, 1990, 12:30 AM CDT
- In force
- 34 min
- Issued by
- NWS Sioux Falls, SD
- Area
- Whole counties
Counties Lyon County, IA, Sioux County, IA, Lincoln County, SD
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 28, 12:15 AM CDT | Thunderstorm Wind 70 | Lyon, 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
Omaha, NE (KOAX), launched 00:00Z, 4.9 hours before the alert went out and 214 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
- 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
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KFSD 280502
SVRFSD
IAC119-167-SDC083-087-099-125-280530-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1156 PM CDT WED JUN 27 1990
THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1230 AM CDT
FOR PEOPLE IN THE FOLLOWING COUNTIES...
IN NORTHWEST IOWA
...WESTERN LYON...NORTHWESTERN SIOUX
IN SOUTHEAST SOUTH DAKOTA
...LINCOLN...EASTERN MCCOOK...MINNEHAHA
...NORTHEASTERN TURNER
AT 1150 PM CDT RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS FROM 30
MILES NORTHWEST OF SIOUX FALLS TO 15 MILES SOUTHEAST OF SIOUX FALLS
NEAR SHINDLER SOUTH DAKOTA MOVING SOUTH SOUTHEAST AT 30 MPH.
SOME CITIES INCLUDED IN THE WARNING ARE MONTROSE...SIOUX FALLS...
PARKER...AND CANTON IN SOUTH DAKOTA...AND IN IOWA LESTER AND INWOOD
AND ROCK VALLEY.
DAMAGING WINDS...LARGE HAIL...AND LOCALLY HEAVY RAIN CAUSING SMALL
STREAM OR URBAN FLOODING WILL ACCOMPANY THESE SEVERE STORMS.
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 3/4 INCH OR LARGER...DEADLY LIGHTNING...AND HEAVY
RAIN THAT CAN QUICKLY FLOOD A LOW LYING AREA.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, 9:08 PM CDT, 2 hours 48 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE HURON SD
905 PM CDT WED JUN 27 1990
STORM DATA FOR WED JUN 27TH
TIME COUNTY...LOCATION CHARACTER OF STORM...DAMAGE
1920 CDT BEADLE COUNTY...8NW HURON 1 INCH HAIL...NWS SPOTTER
1945 CDT BEADLE COUNTY...14 SE HURON 1 INCH HAIL...NWS SPOTTER
2020 CDT BEADLE COUNTY...10 S CAVOUR PEA-MARBLE SIZE HAIL...STRONG
WINDS...NWS SPOTTER
2028 CDT MINER COUNTY...21/2 N HOWARD 3/4 IN HAIL...SHERIFF DEPT
END
ORGISHLocal storm report, Jun 27, 9:54 PM CDT, 2 hours 2 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
950 PM CDT WED JUN 27 1990
STORM DATA FOR WED JUN 27 1990
TIME COUNTY...LOCATION AND STATE CHARACTER OF STORM...DAMAGE
.......................................................................
825 PM CDT BROOKINGS COUNTY...VOLGA HEAVY RAIN...STRONG WIND
REPORTED BY PUBLIC
843 PM CDT BROOKINGS COUNTY...VOLGA .67 RAIN
REPORTED BY PUBLIC
858 PM CDT MINNEHAHA COUNTY...COLTON 50 MPH WIND...REPORTED
MINNEHAHA COUNTY CD
911 PM CDT MINNEHAHA COUNTY...HARTFORD PEA SIZE HAIL...40 MPH
WNDS...RPTD BY PUBLIC
914 PM CDT MINNEHAHA COUNTY...LYONS PEA SIZE HAIL...50 TO 55
MPH WIND...RPTD BY PUBLIC
915 PM CDT MINNEHAHA COUNTY...LYONS MARBLE HAIL...55 MPH WIND
VISIBILITY 100 YARDS.
930 PM CDT MINNEHAHA COUNTY...SIOUX FALLS MARBLE SIZE HAIL...
REPORTED BY NWS OBSERVER_
938 PM CDT MINNEHAHA COUNTY...SE SIDE OF FUNNEL CLOUD REPORTED
SIOUX FALLS BY PUBLIC.
BIERSpecial weather statement, Jun 27, 10:22 PM CDT, 1 hour 34 minutes before
SDZALL-280415- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 1022 PM CDT WED JUN 27 1990 ...SEVERE WEATHER STILL POSSIBLE IN A LARGE PART OF SOUTH DAKOTA... A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR PORTIONS OF THE NORTH/ WEST AND SOUTHEAST SECTIONS UNTIL MIDNIGHT CDT...AND FOR PORTIONS OF THE NORTH UNTIL 4 AM CDT. AT 10 PM CDT THUNDERSTORMS CONTINUED TO MOVE ACROSS NORTHCENTRAL AND EASTERN SECTIONS OF THE STATE. TEMPERATURES RANGED FROM 86 AT CHAMBERLAIN TO 72 AT WATERTOWN. THROUGH MIDNIGHT CDT THUNDERSTORMS...WITH A FEW POSSIBLY SEVERE...WILL CONTINUE TO MOVE THROUGH THE NORTH AND EAST. LOCALLY HEAVY RAIN IS ALSO A POSSIBILITY WITH THESE STORMS. TEMPERATURES WILL DROP INTO THE 60S AND 70S. THEOPHILUS
Special weather statement, Jun 27, 11:00 PM CDT, 56 minutes before
IAZ001-004-005-280500- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX CITY IA 1058 PM CDT WED JUN 27 1990 ...THE SEVERE THUNDERSTORM WARNING FOR LYON AND SIOUX COUNTIES IN NORTHWEST IOWA HAS EXPIRED... AT 1055 PM CDT A STRONG THUNDERSTORM WAS JUST SOUTHEAST OF SHELDON OR 50 MILES NORTHEAST OF SIOUX CITY. THIS STORM HAS DECREASED IN INTENSITY SINCE 1045 PM. HOWEVER...HEAVY RAIN...SMALLY HAIL...GUSTY WIND AND DEADLY CLOUD TO GROUND LIGHTNING WILL ACCOMPANY THIS STORM INTO OBRIEN COUNTY. QUINN
Local storm report, Jun 27, 11:20 PM CDT, 36 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
ORGISHSpecial weather statement, Jun 27, 11:50 PM CDT, 6 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
The office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 27, 9:34 PM CDT | Severe Thunderstorm Warning | FSD | Lyon | 56 min |
| Jun 28, 12:30 AM CDT | Severe Thunderstorm Warning | FSD | Lyon, Sioux | 30 min |
| Jun 28, 12:49 AM CDT | Severe Thunderstorm Warning | FSD | Cherokee, O'Brien, Plymouth | 41 min |
| Jun 28, 12:58 AM CDT | Severe Thunderstorm Warning | FSD | Lyon, Osceola, Sioux | 32 min |
| Jun 28, 1:26 AM CDT | Severe Thunderstorm Warning | FSD | Lyon, Sioux | 34 min |
| Jun 28, 1:37 AM CDT | Severe Thunderstorm Warning | FSD | Cherokee, O'Brien, Plymouth | 53 min |
| Jun 28, 2:08 AM CDT | Severe Thunderstorm Warning | FSD | Ida | 37 min |
| Jun 28, 2:36 AM CDT | Severe Thunderstorm Warning | FSD | Cherokee, Ida | 69 min |
| Jun 28, 2:36 AM CDT | Severe Thunderstorm Warning | FSD | O'Brien | 69 min |
| Jun 28, 2:58 AM CDT | Severe Thunderstorm Warning | FSD | Sioux | 32 min |
| Jun 28, 3:47 AM CDT | Severe Thunderstorm Warning | FSD | Cherokee, O'Brien | 58 min |
| Jun 27, 7:51 PM CDT | Severe Thunderstorm Warning | FSD | Brookings | 39 min |
| Jun 27, 8:10 PM CDT | Severe Thunderstorm Warning | FSD | Brookings, Lake, Moody | 35 min |
| Jun 27, 8:37 PM CDT | Severe Thunderstorm Warning | FSD | Lake, McCook, Minnehaha, Moody | 38 min |
| Jun 27, 9:08 PM CDT | Severe Thunderstorm Warning | FSD | McCook, Minnehaha | 37 min |
| Jun 27, 9:08 PM CDT | Severe Thunderstorm Warning | FSD | Moody | 37 min |
| Jun 27, 11:56 PM CDT | Severe Thunderstorm Warning | FSD | McCook, Minnehaha, Turner | 34 min |
| Jun 28, 7:32 AM CDT | Severe Thunderstorm Warning | FSD | Brookings, Lake, Moody | 43 min |
Nearby
Severe Thunderstorm Warnings in Iowa, 1990Severe 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.