Alert archive / Iowa / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 84, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this severe thunderstorm warning at Jun 28, 1990, 12:58 AM CDT for Lyon County, Osceola County, Sioux County, Iowa; Lincoln County, South Dakota. It was in force for 32 min.
The area
The counties it named.
The facts
- Issued
- Jun 28, 1990, 12:58 AM CDT (05:58 UTC)
- Expired
- Jun 28, 1990, 1:30 AM CDT
- In force
- 32 min
- Issued by
- NWS Sioux Falls, SD
- Area
- Whole counties
Counties Lyon County, IA, Osceola 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.
The nearest sounding before it
Omaha, NE (KOAX), launched 00:00Z, 6.0 hours before the alert went out and 219 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 280601
SVRFSD
IAC119-143-167-SDC083-280630-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1258 AM CDT THU JUN 28 1990
THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 130 AM CDT
FOR PEOPLE IN THE FOLLOWING COUNTIES...
IN NORTHWEST IOWA
...LYON...WESTERN OSCEOLA...SIOUX
IN SOUTHEAST SOUTH DAKOTA
...NORTHERN LINCOLN
AT 1255 AM CDT RADAR INDICATED AN AREA OF SEVERE THUNDERSTORMS FROM
10 MILES SOUTH OF SIOUX FALLS NEAR TEA SOUTH DAKOTA TO 40 MILES
SOUTHEAST OF SIOUX FALLS NEAR REMSEN IOWA MOVING SOUTHEAST AT 30 MPH.
SOME CITIES IN THE WARNING ARE SHINDLER...HARRISBURG...AND TEA IN
SOUTH DAKOTA...AND IN IOWA ROCK RAPIDS...SIOUX CENTER...ROCK
VALLEY...AND SIBLEY.
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.
UMLANDWhat 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 27, 11:00 PM CDT, 1 hour 58 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, 1 hour 38 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, 1 hour 8 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, 50 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, 15 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.
BIERSpecial weather statement, Jun 28, 12:52 AM CDT, 6 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
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 27, 11:56 PM CDT | Severe Thunderstorm Warning | FSD | Lyon, Sioux | 34 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, 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; the sounding from the Mesonet's radiosonde archive.