Alert archive / Minnesota / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 54, NWS Twin Cities, MN

June 12, 1990McLeod County, Renville County, Sibley County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jun 12, 1990, 11:09 PM CDT for McLeod County, Renville County, Sibley County, Minnesota. It was in force for 51 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 12, 1990, 11:09 PM CDT (04:09 UTC)
Expired: Jun 13, 1990, 12:00 AM CDT
In force: 51 min
Issued by: NWS Twin Cities, MN
Area: Whole counties

Counties McLeod County, MN, Renville County, MN, Sibley 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 12, 11:10 PM CDT	Thunderstorm Wind 0	Renville, MN

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, 4.2 hours before the alert went out and 71 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 1326 J/kg
Mixed-layer CIN: -36 J/kg
Mixed-layer LCL: 1196 m above ground
0-6 km bulk shear: 71 kt
0-1 km storm-relative helicity: -50 m²/s²
0-3 km storm-relative helicity: 94 m²/s²
Significant tornado parameter: -0.4
Supercell composite: -2.3

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KMSP 130411
SVRMSP
MNC085-129-143-130500-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MINNEAPOLIS MN
1109 PM CDT TUE JUN 12 1990
 
THE NATIONAL WEATHER SERVICE IN MINNEAPOLIS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL MIDNIGHT CDT
FOR PEOPLE IN THE FOLLOWING COUNTIES...
 
IN CENTRAL MINNESOTA
          ...SOUTHERN MCLEOD...EASTERN RENVILLE...SIBLEY
 
AT 1105 PM CDT A THUNDERSTORM PRODUCED MARBLE SIZE AT FRANKLIN
IN RENVILLE COUNTY WHICH IS 20 MILES EAST OF REDWOOD FALLS.
 
THE STORM WAS MOVING TO THE NORTHEAST AT 45 MPH AND IS EXPECTED TO
INTENSIFY.
 
SOME TOWNS IN THE PATH OF THIS STORM ARE FAIRFAX IN RENVILLE COUNTY
AND FERNANDO IN MCLEOD COUNTY AND WINTHROP IN SIBLEY COUNTY.
 
 
A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA.  REMEMBER
SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES
WITH LITTLE OR NO ADVANCE WARNING.  REMAIN CALM BUT BE ALERT TO
RAPIDLY CHANGING WEATHER CONDITIONS.
JHM

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 12, 8:04 PM CDT, 3 hours 5 minutes before

STORM REPORT
NATIONAL WEATHER SERVICE MINNEAPOLIS, MN
803 PM CDT TUE JUN 12 1990
      ...ATTN SELS A MSP...

 530 PM  PRIOR LAKE....SCOTT COUNTY MN...DIME SIZE HAIL
 540PM   60 MPH WIND..BLOOMINGTON MN...S HENNEPIN COUNTY
 535PM   SAVAGE...SCOTT COUNTY MN...DIME SIZE HAIL
 625PM   DIME HAIL..RIVER FALLS...ST CROIX COUNTY..WI
 635PM   PRESCOTT...ST CROIX COUNTY WI...EST 60 MPH PLUS WINDS..
         SHERIFF SAID "IF HIS CAR HAD WINGS IT WOULD HAVE FLOWN"
 705PM   NEAR WILSON..ST CROIX COUNTY..60 TO 70 MPH WINDS
 700 PM  BALDWIN..WILSON AREA OF ST CROIX COUNTY WI...STRUCTURAL
         DAMAGE...LARGE TREES DOWN..NMRS POWER OUTAGES.
 735 TO  REPORTS OF 70 MPH PLUS WINDS IN BLOOMER AND CHIPPEWA FALLS
 755PM   IN CHIPPWA COUNTY..WI
 745 PM  GOLFBALL HAIL IN EAU CLAIRE IN EAU CLAIRE CO..WI
         PAULSON

Local storm report, Jun 12, 8:23 PM CDT, 2 hours 46 minutes before

STORM REPORT
NATIONAL WEATHER SERVICE MINNEAPOLIS, MN
825 PM CDT TUE JUN 12 1990
      ...ATTN SELS A MSP...

 720PM   DUNN COUNTY...WI.  WHEELER AREA.  EXTENSIVE WIND DAMAGE...
         AT LEAST TWO HOMES SEVERELY DAMAGED....MANY TREES AND POWER
         POLES SNAPPED....KXJ-88 NOAA WEATHER RADIO IN WHEELER WI OTS.
         REPORT CAME FROM TECHNICIAN ATTEMPTING TO REPAIR NWR.

PAULSON

The office that day

Everything else NWS Twin Cities, MN issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 12, 8:13 PM CDT	Severe Thunderstorm Warning	MPX	Blue Earth, Le Sueur, Nicollet	32 min
Jun 12, 8:51 PM CDT	Severe Thunderstorm Warning	MPX	Le Sueur, Rice	54 min
Jun 12, 9:43 PM CDT	Severe Thunderstorm Warning	MPX	Goodhue	47 min
Jun 12, 11:25 PM CDT	Tornado Warning	MPX	Sibley	35 min
Jun 13, 12:21 AM CDT	Severe Thunderstorm Warning	MPX	Carver, McLeod, Scott	69 min
Jun 13, 12:21 AM CDT	Severe Thunderstorm Warning	MPX	Dakota	69 min
Jun 13, 1:20 AM CDT	Flash Flood Warning	MPX	Dodge, Goodhue, Olmsted, Wabasha	115 min
Jun 13, 2:05 AM CDT	Severe Thunderstorm Warning	MPX	Freeborn	25 min
Jun 13, 2:30 AM CDT	Severe Thunderstorm Warning	MPX	Freeborn, Mower	45 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 1990 Every 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.