Alert archive / Minnesota / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 52, NWS Twin Cities, MN

June 17, 1986Pope County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jun 17, 1986, 11:57 PM CDT for Pope County, Minnesota. It was in force for 48 min.

The area

The counties it named.

The facts

Issued
Jun 17, 1986, 11:57 PM CDT (04:57 UTC)
Expired
Jun 18, 1986, 12:45 AM CDT
In force
48 min
Issued by
NWS Twin Cities, MN
Area
Whole counties

County Pope County, MN

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

Minneapolis, MN (KSTC), launched 00:00Z, 5.0 hours before the alert went out and 166 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-pSkew-T log-p diagram, Minneapolis, MN at 00:00Z on 1986-06-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 00:00Z on 1986-06-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 2 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2042 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
2 m²/s²
0-3 km storm-relative helicity
151 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.5

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMSP 180457
SVRMSP
MNC121-180545-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MINNEAPOLIS MN
1157 PM CDT TUE JUN 17 1986

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 1245 AM CDT FOR PEOPLE IN THE FOLLOWING 
COUNTY OF

WEST CENTRAL MINNESOTA...POPE

AT 1150 PM A SEVERE THUNDERSTORM WAS INDICATED BY RADAR IN GRANT
COUNTY MINNESOTA NEAR HOFFMAN...MOVING TO THE SOUTHEAST AT 40
MILES AN HOUR.  THIS SEVERE THUNDERSTORM IS ABOUT 20 MILES WEST OF
ALEXANDRIA AND SHOULD BE MOVING INTO NORTHWEST POPE COUNTY ABOUT
MIDNIGHT.  SOME CITIES IN THE PATH OF THIS SEVERE THUNDERSTORM IN
POPE COUNTY ARE STARBUCK AND GLENWOOD.

REMEMBER SEVERE THUNDERSTORMS PRODUCE STRONG DAMAGING WINDS..LARGE
HAIL AND FREQUENT LIGHTNING STRIKES. ALSO SEVERE THUNDERSTORMS CAN
AND OCCASIONALLY DO PRODUCE A TORNADO WITH LITTLE OR NO ADVANCE
WARNING..SO BE ON THE LOOKOUT AND BE PREPARED TO MOVE TO A PLACE OF
SAFETY IF ONE IS SPOTTED.

PAULSON

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

Special weather statement, Jun 17, 6:38 PM CDT, 5 hours 19 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MINNEAPOLIS/ST PAUL
630 PM CDT TUE JUN 17 1986

...VERY STRONG THUNDERSTORMS MOVING INTO HENNEPIN COUNTY...

AT 630 PM CDT NATIONAL WEATHER SERVICE RADAR SHOWED VERY STONG
THUNDERSTORMS DEVELOPING IN SOUTHWEST HENNEPIN COUNTY NEAR LAKE
MINNETONKA.  ANOTHER VERY STONG THUNDERSTORM WAS LOCAED NEAR THE
BUFFALO AREA OF WRIGHT COUNTY.  BOTH THUNDERSTORMS WERE MOVING
SOUTHEAST AT AROUND 35 MPH.

THESE THUNDERSTORMS HAVE THE POTENIAL OF PRODUCING HAIL AND STRONG WINDS.
DANGEROUS LIGHTNING IS ALSO POSSIBLE.  THUS..BOATERS AND OTHER ENGAGED
IN OUTDOOR ACTIVITES SHOULD TAKE THE NECESARY PRECAUTIONS.

SOME OF THE CITIES IN PATH OF THESE THUNDERSTORMS
IN HENNEPIN COUNTY ARE ROCKFORD..PLYMOUTH..AND THE LAKE
MINNETONKA AREA.
<
BETWEEN 630 AND 730 PM THE VERY STONG TBUNDERSTORMS SHOULD ROLL
THROUGH MUH OF THE WESTERN AND SOUTBERN METRO AREA.

IF THREATENING WEATHER APPROACHES YOU SEEK SHELTER.
PAULSON
Special weather statement, Jun 17, 7:00 PM CDT, 4 hours 57 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST CLOUD MN
7 00 PM CDT TUE JUN 17 1986

..SEVERE THUNDERSTORM WATCH UNTIL 11 PM CDT...

A SEVERE THUNDERSTORM WATCH CONTINUES IN EFFECT FOR A LARGE PART OF
CENTRAL MINNESOTA UNTIL 11 PM CDT.  AT 7 PM CDT THUNDERSTORMS
CONTINUED THROUGH MUCH OF THE SOUTHERN HALF OF MINNESOTA.  LARGE
HAIL..THE SIZE OF GOLF BALLS WAS REPORTED IN POPE COUNTY..NORTHWEST
OF GLENWOOD DURING THE EARLY EVENING HOURS.  PEA SIZED HAIL WAS
REPORTED IN KANDIYOHI..IN THE NEW LONDON AREA..AND IN STEARNS COUNTY
AROUND BROOTEN.  THERE HAS BEEN NO REPORT OF SEVERE WEATHER IN
CENTRAL MINNESOTA SINCE 6PM CDT..AND WARNINGS HAVE EXPIRED FOR
POPE..STEARNS..KANDIYOHI..AND MEEKER COUNTIES OF MINNESOTA.

THUNDERSTORMS WILL CONTINUE THROUGHOUT THE EVENING IN CENTRAL
MINNESOTA.

DE VOE
Special weather statement, Jun 17, 8:19 PM CDT, 3 hours 38 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MINNEAPOLIS/ST PAUL
810 PM CDT TUE JUN 17 1986

NATIONAL WEATHER SERVICE RADAR CONTINUED TO SHOW AN AREA OF VERY
STRONG THUNDERSTORMS ACROSS CENTRAL AND INTO SOUTHCENTRAL AND
SOUTHEAST MINNESOTA AT 8PM THIS EVENING.  THE MOST INTENSE THUNDER
STORMS RAN IN A NORTHWEST TO SOUTHEAST LINE FROM NEAR THE HECTOR
AREA OF RENVILLE COUNTY TO THE ST PETER AREA OF LE SUEUR COUNTY TO
THE OWATONNA AREA OF WASECA COUNTY.  THIS IS GENERALLY 40 TO 50 MILES
WEST AND SOUTH OF THE TWIN CITIES.

PERSONS IN THE ABOVE MENTIONED AREA OF CENTRAL AND SOUTHCENTRAL
MINNESOTA CAN EXPECT DANGEROUS LIGHTNING..SOME HAIL..AND PERIODS OF VERY
HEAVY RAINS.  THE THUNQDERSTORMS WERE MOVING SOUTHEAST AT 30 TO 35
MPH.  LOCALLY HEAVY RAINS MAY BE EXPECTED FROM THESE THUNDERSTORMS
AS THEY HAVE BEEN TRACKING ACROSS THE SAME GENERAL AREA DURING THE
EVENING HOURS.
PAULSON
Special weather statement, Jun 17, 8:54 PM CDT, 3 hours 3 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE MINNEAPOLIS/ST PAUL
840 PM CDT TUE JUN 17 1986

NATIONAL WEATHER SERVICE RADAR CONTINUED TO SHOW AN AREA OF VERY
STRONG THUNDERSTORMS ABOUT 40 TO 50 MILES WEST SOUTHWEST OF THE
TWIN CITIES.  THE STRONGEST STORMS REMAINED IN RENVILLE..MC LEOD AND
SIBLEY COUNTIES.  SOME OF THE CITIES NEAR THE PATH OF THESE STORMS
ARE HECTOR..GAYLORD..GLENCOE..AND HUTCHINSON.  NO REPORTS OF SEVERE
WEATHER HAVE BEEN REPORTED TO THE NATIONAL WEATHER SERVICE SINCE BEFORE
8PM. HOWEVER..REPORTS OF PERIODS OF HEAVY RAIN...INTENSE LIGHTNING..AND
SMALL HAIL DO CONTINUE.

OTHER SCATTERED SHOWERS AND THUNDERSTORMS REMAINED ACROSS A LARGE PART
OF SqOUTHERN AND CENTRAL MINNESOTA.  REMEMBER A SEVERE THUNDERSTORM WATCH
REMAINS IN EFFECT FOR MUCH OF CENTRAL MINNESOTA UNTIL 11PM.

ALL SHOWERS AND THUNDERSTORMS WERE MOVING SOUTHEAST AT 30 TO 35 MPH.
PAULSON
Local storm report, Jun 17, 9:45 PM CDT, 2 hours 12 minutes before
NATIONAL WEATHER SERVICE MINNEAPOLIS/ST PAUL MN
 930PM CDT TUE JUN 17 1986
      ...ATTN SELS A MSP...

 647 PM  BASEBALL HAIL IN ARLINGTON IN SIBLEY COUNTY
         PAULSON

 NAME
Local storm report, Jun 17, 10:00 PM CDT, 1 hour 57 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE ST CLOUD MN
905 PM CDT TUE JUN 17 1986

TIME        EVENT
355 PM CDT  GOLF BALL SIZE HAIL NORTHWEST POPE COUNTY. CONTINUED
UNTIL 4 02PM CDT

410 PM UNTIL 435PM CDT MARBLE TO GOLF BALL SIZE HAIL COVER GROUND
JUST NORTHWEST OF GLENWOOD

532 PM CDT PEA SIZE HAIL AT NORTH EDGE OF NEW LONDON..KANDIYOHI
COUNTY

535 PM CDT GOLF BALL SIZE HAIL OVER LAKE MINNEWASKA..GLENWOOD..POPE
COUNTY

545PM CDT PEA SIZxE HAIL AT BROOTEN..STEARNS COUNTY

619PM CDT PEA SIZE HAIL 1 1/2 MI. NORTH OF GROVE CITY..MEEKER COUNTY

645PM CDT PEA SIZE HAIL IN NEW LONDON AREA..KANDIYOHI COUNTY.

DE VOE

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 18, 12:57 AM CDTSevere Thunderstorm WarningMPXPope, Stearns53 min
Jun 18, 1:50 AM CDTSevere Thunderstorm WarningMPXMeeker, Stearns60 min
Jun 18, 2:26 AM CDTSevere Thunderstorm WarningMPXWright64 min
Jun 18, 2:50 AM CDTSevere Thunderstorm WarningMPXMeeker, Stearns40 min
Jun 18, 3:34 AM CDTSevere Thunderstorm WarningMPXWright26 min
Jun 18, 3:34 AM CDTSevere Thunderstorm WarningMPXCarver, Hennepin56 min
Jun 18, 3:51 AM CDTSevere Thunderstorm WarningMPXCarver, Hennepin29 min
Jun 18, 3:51 AM CDTSevere Thunderstorm WarningMPXDakota, Scott54 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 1986Every severe thunderstorm warning in 1986

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.