Alert archive / Minnesota / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 66, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this severe thunderstorm warning at Jun 19, 1990, 3:11 AM CDT for Murray County, Nobles County, Rock County, Minnesota; Lyon County, Iowa. It was in force for 64 min. 3 reports 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 19, 1990, 3:11 AM CDT (08:11 UTC)
- Expired
- Jun 19, 1990, 4:15 AM CDT
- In force
- 64 min
- Issued by
- NWS Sioux Falls, SD
- Area
- Whole counties
Counties Lyon County, IA, Murray County, MN, Nobles County, MN, Rock County, MN
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 19, 3:30 AM CDT | Thunderstorm Wind 61 | Rock, MN | |
| Jun 19, 3:44 AM CDT | Thunderstorm Wind 0 | Rock, MN | |
| Jun 19, 4:00 AM CDT | Thunderstorm Wind 50 | 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
Minneapolis, MN (KSTC), launched 00:00Z, 8.2 hours before the alert went out and 230 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
- 419 J/kg
- Mixed-layer CIN
- -19 J/kg
- Mixed-layer LCL
- 1506 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- 77 m²/s²
- 0-3 km storm-relative helicity
- 156 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 1.7
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KFSD 190813
SVRFSD
IAC119-MNC101-105-133-190915-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
311 AM CDT TUE JUN 19 1990
THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 415 AM CDT
FOR PEOPLE IN THE FOLLOWING COUNTIES...
IN NORTHWEST IOWA
...LYON
IN SOUTHWEST MINNESOTA
...MURRAY...NOBLES...ROCK
SOME CITIES INCLUDED IN THIS WARNING ARE SLAYTON...WORTHINGTON...
ADRIAN AND LUVERNE MINNESOTA AS WELL AS ROCK RAPIDS IOWA.
AT 305 AM CDT RADAR INDICATED A LINE OF SEVERE THUNDERSTORM FROM 35
NORTHEAST OF SIOUX FALLS NEAR PIPESTONE TO 10 MILES NORTH OF SIOUX
FALLS TO 25 MILES SOUTHWEST OF SIOUX FALLS NEAR MONROE SOUTH DAKOTA.
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 H7EAVY
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.
BLOOMWhat 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 19, 1:30 AM CDT, 1 hour 41 minutes before
SDZALL-190715- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 130 AM CDT TUE JUN 19 1990 ...SEVERE THUNDERSTORMS POSSIBLE IN CENTRAL AND EASTERN SOUTH DAKOTA... A SEVERE THUNDERSTORM WATCH WILL REMAIN IN EFFECT FOR PARTS OF CENTRAL AND EASTERN SOUTH DAKOTA UNTIL 4 AM CDT. AT 1 AM CDT THUNDERSTORMS WERE MOVING RAPIDLY EAST SOUTHEAST AT 50 TO 60 MPH FROM NORTH OF CHAMBERLAIN TO NORTH OF ABERDEEN. MOBRIDGE REPORTED WIND GUSTS TO 71 MPH WHILE ABERDEEN REPORTED GUSTS TO 43 MPH. EXTREME WESTERN SOUTH DAKOTA WAS PARTLY CLOUDY. TEMPERATURES RANGED FROM 77 AT HURON TO 59 AT LEMMON. THROUGH 3 AM CDT SCATTERED THUNDERSTORMS WILL CONTINUE TO MOVE INTO EASTERN SOUTH DAKOTA WITH^ THE POSSIBILITY THAT SOME OF THEM WILL BECOME SEVERE. STRONG GUSTY WINDS CAN ALSO BE EXPECTED BEHIND THESE STORMS. TEMPERATURES WILL DROP INTO THE 50S AND 60S IN THE WEST AND REMAIN IN THE 60S AND 70S IN THE EAST. THEOPHILUS
Special weather statement, Jun 19, 1:41 AM CDT, 1 hour 30 minutes before
IAZ004-190730- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX CITY IA 140 AM CDT TUE JUN 19 1990 ...A FLASH FLOOD WATCH IS IN EFFECT FOR WESTERN IOWA AND EASTERN NEBRASKA TONIGHT... AT 135 AM RADAR SHOWED AN AREA OF SHOWERS IN OBRIEN COUNTY NEAR PAULLINA IOWA. THIS AREA WAS MOVING EAST AT 40 MPH. ALTHOUGH THERE WERE NO OTHER SHOWERS OR STORMS IN THE AREA..OTHER THUNDERSTORMS AND SHOWERS MAY DEVELOP AT ANY TIME THIS MORNING ACROSS S IOUXLAND. TANNER
Special weather statement, Jun 19, 1:45 AM CDT, 1 hour 26 minutes before
SDZ018-190725- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 144 AM CDT TUE JUN 19 1990 ...RAPIDLY MOVING THUNDERSTORMS MOVING INTO SOUTHEAST SOUTH DAKOTA... AT 135 AM CDT THE SOUTHERN EDGE OF AN AREA OF INTENSE THUNDERSTORMS HAD WAS CENTERED 30 MILES WESTNORTHWEST OF MITCHELL BETWEEN STORIA AND CROW LAKE SOUTH DAKOTA. THE THUNDERSTORMS WERE MOVING EAST AT 40 MPH. THESE THUNDERSTORMS WILL LIKELY PRODUCE DANGEROUS CLOUD TO GROUND LIGHTNING...STRONG WINDS AND BRIEF PERIODS OF VERY HEAVY RAIN. HAIL IS ALSO POSSIBLE. THE THUNDERSTORMS SHOULD MOVE THROUGH THE MITCHELL AROUND 215 AM CDT. PERSONS NEAR AND TO THE EAST OF THESE THUNDERSTORMS SHOULD BE PREPARED FOR THIS ADVtERSE WEATHER. MOVE TO A SAFE PLACE IF NECESSARY. BLOOM
Special weather statement, Jun 19, 1:46 AM CDT, 1 hour 25 minutes before
SDZ017-190725- SPECIAL WEATHER STATEMENT...CORRECTED... NATIONAL WEATHER SERVICE SIOUX FALLS SD 145 AM CDT TUE JUN 19 1990 ...RAPIDLY MOVING THUNDERSTORMS MOVING INTO SOUTHEAST SOUTH DAKOTA... AT 135 AM CDT THE SOUTHERN EDGE OF AN AREA OF INTENSE THUNDERSTORMS HAD WAS CENTERED 30 MILES WESTNORTHWEST OF MITCHELL BETWEEN STORIA AND CROW LAKE SOUTH DAKOTA. THE THUNDERSTORMS WERE MOVING EAST AT 40 MPH. THESE THUNDERSTORMS WILL LIKELY PRODUCE DANGEROUS CLOUD TO GROUND LIGHTNING...STRONG WINDS AND BRIEF PERIODS OF VERY HEAVY RAIN. HAIL IS ALSO POSSIBLE. THE THUNDERSTORMS SHOULD MOVE THROUGH THE MITCHELL AROUND 215 AM CDT. PERSONS NEAR AND TO THE EAST OF THESE THUNDERSTORMS SHOULD BE PREPAREuD FOR THIS ADVERSE WEATHER. MOVE TO A SAFE PLACE IF NECESSARY. BLOOM
Special weather statement, Jun 19, 2:49 AM CDT, 22 minutes before
IAZ004-190830- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX CITY IA 248 AM CDT TUE JUN 19 1990 ...SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR WESTERN IOWA...EASTERN NEBRASKA AND SOUTHEAST SOUTH DAKOTA UNTIL 8AM CDT... ...A FLASH FLOOD WATCH IS IN EFFECT FOR WESTERN IOWA AND EASTERN NEBRASKA TONIGHT... AT 245 AM CDT RADAR SHOWED SCATTERED SHOWERS AND THUNDERSTORMS IN A 40 MILE WIDE BAND FROM BATTLE CREEK TO LAWTON IOWA. THE STORMS WERE MOVING EAST AT 40 MPH. THE RAIN WILL MOVE ACROSS MONONA...CHEROKEE...IDA AND EASTERN WOODBURY COUNTIES. PEOPLE SHOULD STAY ALERT TO CHANGING WEATHER CONDITIONS AND BE PREPARED TO MOVE TO A PLACE OF SAFETY IF THREATENING WEATHER APPROACHEJS. HOPPES
Special weather statement, Jun 19, 2:55 AM CDT, 16 minutes before
SDZ011-012-018-190830- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE HURON SD 250 AM CDT TUE JUN 19 1990 AT 230 AM CDT...NUMEROUS INTENSE THUNDERSTORMS...SOME WITH VERY HEAVY RAIN AND STRONG GUSTY WINDS...CONTINUED OVER MUCH OF EASTERN AND PARTS OF CENTRAL SOUTH DAKOTA. THESE STORMS WERE MOSTLY SOUTHEAST OF A LINE FROM HECLA TO MIDLAND WITH THE STRONGEST STORMS LOCATED 15 MILES SOUTH OF BROOKINGS...JUST SOUTHWEST OF SALEM AND JUST EAST OF FORT THOMPSON. THESE STORMS HAVE PRODUCED VERY HEAVY RAINS...STRONG GUSTY WINDS AND HAIL. PERSONS IN THE I-29 CORRIDOR BETWEEN BROOKINGS AND SIOUX FALLS SHOULD REMAIN ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS. MOVEMENT WAS EAST SOUTHEAST AT 60 MILES AN HOUR. PFEIFFER
The office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 19, 2:51 AM CDT | Severe Thunderstorm Warning | FSD | Lincoln, Pipestone | 69 min |
| Jun 19, 4:11 AM CDT | Severe Thunderstorm Warning | FSD | Jackson | 46 min |
| Jun 19, 3:44 AM CDT | Severe Thunderstorm Warning | FSD | Sioux | 56 min |
| Jun 19, 4:24 AM CDT | Severe Thunderstorm Warning | FSD | Lyon | 23 min |
Nearby
Severe Thunderstorm Warnings in Minnesota, 1990Severe Thunderstorm Warnings in Iowa, 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.