Alert archive / Minnesota / Severe Thunderstorm Warnings in 1987

Severe Thunderstorm Warning 25, NWS Twin Cities, MN

June 28, 1987Dakota County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jun 28, 1987, 6:18 PM CDT for Dakota County, Minnesota. It was in force for 57 min.

The area

The counties it named.

The facts

Issued: Jun 28, 1987, 6:18 PM CDT (23:18 UTC)
Expired: Jun 28, 1987, 7:15 PM CDT
In force: 57 min
Issued by: NWS Twin Cities, MN
Area: Whole counties

County Dakota 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 12:00Z, 11.3 hours before the alert went out and 47 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: 139 J/kg
Mixed-layer CIN: -151 J/kg
Mixed-layer LCL: 1385 m above ground
0-6 km bulk shear: 48 kt
0-1 km storm-relative helicity: 63 m²/s²
0-3 km storm-relative helicity: 126 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMSP 282318
SVRMSP
MNC037-290015-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MINNEAPOLIS MN
618 PM CDT SUN JUN 28 1987

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 715 PM CDT FOR PEOPLE IN THE FOLLOWING 
COUNTY OF

SOUTHEAST MINNESOTA...
 DAKOTA


AT 610 PM RADAR INDICATED A SEVERE THUNDERSTORM NEAR THE LAKEVILLE
AREA ABOUT 20 MILES SOUTH OF DOWNTOWN MINNEAPOLIS. PERSONS
IN THE CITIES OF FARMINGTON AND RSEMONT MINNESOTA SHOULD BE ALERT
FOR THE APPROACH OF SEVERE WEATHER.

REMEMBER SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60
MPH..DESTRUCTIVE HAIL..DEADLY LIGHTNING AND VERY HEAVY RAIN. ALSkO
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.

RND

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 28, 3:23 PM CDT, 2 hours 55 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST. CLOUD MN
320 PM CDT SUN JUN 28 1987

...SEVERE THUNDERSTORM WATCH UNTIL 900 PM CDT FOR PORTIONS OF
SOUTHERN MINNESOTA...

AT 310 PM CDT STRONG THUNDERSTORMS WERE LOCATED IN LAC QUI PARLE AND
YELLOW MEDICINE AND CHIPPEWA COUNTIES OF SOUTHWEST MINNESOTA.

PEA SIZE HAIL AND BRIEF HEAVY RAIN WAS REPORTED AT DAWSON IN LAC QUI
PARLE COUNTY...50 MILES SOUTHWEST OF WILLMAR...AT 300 PM CDT BY THE
SHERIFF DEPARTMENT OF CHIPPEWA COUNTY.

RADAR SHOWED THESE STORMS MOVING EAST AT 30 MILES AN HOUR.

BE PREPARED TO MOVE TO A PLACE OF SAFETY IF SEVERE WEATHER MOVES INTO
YOUR AREA AND LISTEN FOR FURTHER STATEMENTS OR WARNINGS.

FRASER

Special weather statement, Jun 28, 4:03 PM CDT, 2 hours 15 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST. CLOUD MN
400 PM CDT SUN JUN 28 1987

...SEVERE THUNDERSTORM WATCH UNTIL 900 PM CDT FOR PORTIONS OF
SOUTHERN MINNESOTA...

AT 355 PM CDT STRONG THUNDERSTORMS WERE LOCATED IN SOUTHERN CHIPPEWA
AND SOUTHERN KANDIYOHI COUNTIES OF SOUTHWEST MINNESOTA.

AT 328 PM CDT PEA SIZE HAIL AND HEAVY RAIN WAS REPORTED 8 MILES NORTH
0F CLARKFIELD IN YELLOW MEDICINE COUNTY...40 MILES SOUTHWEST OF
WILLMAR. PEA SIZE HAIL ALSO REPORTED AT PRINSBURG IN KANDIYOHI
COUNTY...13 MILES SOUTHWEST OF WILLMAR...AT 333 PM CDT.

RADAR SHOWED THESE STORMS MOVING EAST AT 30 MILES AN HOUR.

BE PREPARED TO MOVE TO A PLACE OF SAFETY IF SEVERE WEATHER MOVES INTO
YOUR AREA AND LISTEN FOR FURTHER STATEMENTS OR WARNINGS.

RUBIN/FRASER

Local storm report, Jun 28, 5:23 PM CDT, 55 minutes before

LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ST CLOUD, MN
520 PM CDT SUN JUN 28 1987

...ATTN CELS...
STORM REPORT FOR SUN JUN 28 1987

TIME                EVENT                           LOCATION
300 PM CDT        PEA SIZE HAIL BRIEF HEAVY RAIN AT DAWSON IN LAC
                  QUI PARLE COUNTY...50 MILES SOUTHWEST OF WILLMAR.
328 PM CDT        PEA SIZE HAIL AND HEAVY RAIN 8 MILES NORTH OF
                  CLARKFIELD IN YELLOW MEDICINE COUNTY...40 MILES
                  SOUTHWEST OF WILLMAR.
333 PM CDT        PEA SIZE HAIL AT PRINSBURG IN KANDIYOHI COUNTY...
                  13 MILES SOUTHWEST OF WILLMAR.
424 PM CDT        FUNNEL CLOUD REPORTED NEAR MADISON IN LAC QUI
                  COUNTY...55 MILES WEST OF WILLMAR AND
                  A FUNNEL CLOUD NEAR CANBY AND NEAR ST. LEO BOTH
                  IN YELLOW MEDICINE COUNTY...45 TO 55 MILES
                  NORTHWEST OF REDWOOD FALLS.
434 PM CDT       1/4 TO 1/2 INCH HAIL AND WIND TO 50 MILE AN HOUR
                 AT BIG LAKE IN SHERBURNE COUNTY...27 MILES SOUTHEAST
                 OF ST. CLOUD.
435 PM CDT       A FUNNEL CLOUD WITH BRIEF TOUCHDOWN JUST WEST OF
                 ST. LEO IN YELLOW MEDICINE COUNTY...45 MILES
                 NORTHWEST OF REDWOOD FALLS...TREES DOWN AND BUILDING
                 DAMAGE BUT NO INJURIES.
445 PN CDT       1/4 TO 1/2 INCH HAIL AND HEAVY RAIN AT GREENLAKE IN
                 MEEKER COUNTY...40 MILES SOUTHWEST OF ST. CLOUD.
455 PM CDT       TREE DAMAGE AND BUILDING DAMAGE WITH 50 MPH WIND AT
                 ELK RIVER IN SHERBURNE COUNTY...35 MILES SOUTHEAST
                 OF ST. CLOUD.  ALSO PEAS SIZE HAIL AND VERY HEAVY
              6   RAIN.

FRASER

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 28, 4:25 PM CDT	Tornado Warning	MPX	Lac qui Parle, Yellow Medicine	35 min
Jun 28, 5:02 PM CDT	Severe Thunderstorm Warning	MPX	Anoka, Hennepin	38 min
Jun 28, 5:12 PM CDT	Tornado Warning	MPX	Anoka, Hennepin, Ramsey	28 min
Jun 28, 5:43 PM CDT	Tornado Warning	MPX	Hennepin	27 min
Jun 28, 5:43 PM CDT	Tornado Warning	MPX	Anoka, Dakota, Ramsey, Washington	27 min
Jun 28, 6:01 PM CDT	Severe Thunderstorm Warning	MPX	Scott	44 min
Jun 28, 6:34 PM CDT	Severe Thunderstorm Warning	MPX	Goodhue, Wabasha	56 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 1987 Every severe thunderstorm warning in 1987

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.