Alert archive / Minnesota / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 115, NWS Twin Cities, MN

August 27, 1990Anoka County, Chisago County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Aug 27, 1990, 10:44 PM CDT for Anoka County, Chisago County, Minnesota. It was in force for 31 min.

The area

The counties it named.

The facts

Issued
Aug 27, 1990, 10:44 PM CDT (03:44 UTC)
Expired
Aug 27, 1990, 11:15 PM CDT
In force
31 min
Issued by
NWS Twin Cities, MN
Area
Whole counties

Counties Anoka County, MN, Chisago 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, 3.7 hours before the alert went out and 73 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 1990-08-28Temperature 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 1990-08-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 24 square meters per square second.1939587897Sfc1 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
NaN m above ground
0-6 km bulk shear
58 kt
0-1 km storm-relative helicity
24 m²/s²
0-3 km storm-relative helicity
149 m²/s²
Significant tornado parameter
0.0
Supercell composite
3.4

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMSP 280344
SVRMSP
MNC003-025-280445-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MINNEAPOLIS MN
1044 PM CDT MON AUG 27 1990
 
THE NATIONAL WEATHER SERVICE IN MINNEAPOLIS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1145 PM CDT
FOR PEOPLE IN THE FOLLOWING COUNTIES...
 
IN EAST CENTRAL MINNESOTA
          ...NORTHEASTERN ANOKA...SOUTHERN CHISAGO
 
AT 1042 PM...A SEVERE THUNDERSTORM WAS OCCURRING NEAR BETHEL IN
EXTREME NORTHERN ANOKA COUNTY...ABOUT 30 MILES NORTH OF DOWNTOWN
MINNEAPOLIS. THREE TO FOUR INCH HAIL WAS REPORTED FROM THIS STORM AT
1030 PM 8 MILES SOUTH OF PRINCETON IN NORTHEAST SHERBURNE COUNTY OF
CENTRAL MINNESOTA. MOVEMENT WAS TO THE SOUTHEAST AT 30 MILES AN HOUR.
CITIES IN THE PATH OF THIS STORM INCLUDE BETHEL...COOPERS CORNER...ST
FRANCIS...CHISAGO CITY...WYOMING...AND LINDSTROM.
 
 
WHEN THUNDERSTORMS ARE OCCURRING..MOVE INSIDE A STRONG BUILDING
DO NOT STAND BY WINDOWS. ` DON'T USE TELEPHONES OR ELECTRICAL
APPLIANCES UNLESS IN AN EMERGENCY. REMEMBER SEVERE THUNDERSTORMS
CAN AND OCCASIONALLY DO PRODUCE TORNADOS WITH LITTLE OR NO WARNING.
DOMBROWSKY

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, Aug 27, 8:19 PM CDT, 2 hours 25 minutes before
MNZ011-280200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST CLOUD MN
720 PM CDT SAT AUG 26 1990

...A LARGE ISOLATED THUNDERSTORM DEVELOPED OVER CENTRAL MINNESOTA...

AT 715 PM CDT RADAR INDICATED A STRONG THUNDERSTORM WITH HEAVY RAIN
HAD DEVELOPED OVER CENTRAL MINNESOTA. THE THUNDERSTORM WAS LOCATED
NEAR SWANVILLE...35 MILES NORTHWEST OF ST CLOUD...IT EXTENDED EAST
TO LITTLE FALLS WHICH IS 30 MILES NORTH OF ST CLOUD.

THE THUNDERSTORM WAS MOVING EAST AT 25 TO 30 MPH.

PEOPLE IN THE PATH OF THIS STORM SHOULD MOVE INDOORS AND STAY AWAY
FROM WINDOWS. DEADLY LIGHTNING...BRIEF GUSTY WINDS UP TO 40 MPH
AND SMALL HAIL ARE POSSIBLE WITH THIS STORM.
VC
Special weather statement, Aug 27, 8:20 PM CDT, 2 hours 24 minutes before
MNZ011-280200-

SPECIAL WEATHER STATEMENT...CORRECTED FOR TIME
NATIONAL WEATHER SERVICE ST CLOUD MN
820 PM CDT SAT AUG 26 1990

...A LARGE ISOLATED THUNDERSTORM DEVELOPED OVER CENTRAL MINNESOTA...

AT 815 PM CDT RADAR INDICATED A STRONG THUNDERSTORM WITH HEAVY RAIN
HAD DEVELOPED OVER CENTRAL MINNESOTA. THE THUNDERSTORM WAS LOCATED
NEAR SWANVILLE...35 MILES NORTHWEST OF ST CLOUD...IT EXTENDED EAST
TO LITTLE FALLS WHICH IS 30 MILES NORTH OF ST CLOUD.

THE THUNDERSTORM WAS MOVING EAST AT 25 TO 30 MPH.

PEOPLE IN THE PATH OF THIS STORM SHOULD MOVE INDOORS AND STAY AWAY
FROM WINDOWS. DEADLY LIGHTNING...BRIEF GUSTY WINDS UP TO 40 MPH
AND SMALL HAIL ARE POSSIBLE WITH THIS STORM.
VC
Special weather statement, Aug 27, 8:40 PM CDT, 2 hours 4 minutes before
MNZALL-WIZ003-006-280245-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MINNEAPOLIS/ST PAUL MN
840 PM CDT MON AUG 27 1990

...VERY STRONG THUNDERSTORMS DEVELOP OVER CENTRAL MINNESOTA...

AT 830 PM...A VERY STRONG THUNDERSTORM WAS OCCURRING NEAR SWANVILLE
IN MORRISON COUNTY OF CENTRAL MINNESOTA...ABOUT 30 MILES NORTHWEST
OF ST CLOUD.  THIS STORM IS MOVING TO THE EAST AT 25 TO 35 MILES
AN HOUR.  IT HAS THE POTENTIAL TO PRODUCE STRONG GUSTY WINDS...HAIL
...FREQUENT DEADLY LIGHTNING...AND VERY HEAVY RAINFALL.  PERSONS
ENGAGED IN OUTDOOR ACTIVITIES SHOULD REMAIN ALERT AND BE PREPARED TO
SEEK SAFE SHELTER IF THREATENING WEATHER APPROACHES.  TOWNS IN THE
PATH OF THIS STORM INCLUDE SOBIESKI...GREGORY...AND LITTLE FALLS.

ANOTHER VERY STRONG THUNDERSTORM WAS OCCURRING 10 MILES EAST OF PINE
RIVER IN CROW WING COUNTY.  IT WAS MOVING TO THE EAST AT 25 MILES AN
HOUR.
KRAFT
Special weather statement, Aug 27, 8:50 PM CDT, 1 hour 54 minutes before
MNZ011-280215-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST CLOUD MN
850 PM CDT SAT AUG 26 1990

...A LARGE ISOLATED THUNDERSTORM DEVELOPED OVER CENTRAL MINNESOTA...

AT 845 PM CDT RADAR INDICATED A STRONG THUNDERSTORM WITH HEAVY RAIN
LOCATED 5 MILES SOUTH OF LITTLE FALLS ALONG THE MISSISSIPPI RIVER.
THE STORM EXTENDED WEST TO HOLDINGFORD...16 MILES NORTHWEST OF ST
CLOUD.

THE THUNDERSTORM WAS MOVING SOUTHEAST 25 MPH. IT WILL MOVE THROUGH
THE CITY OF RICE AROUND 9 PM CDT.

PEOPLE IN THE PATH OF THIS STORM SHOULD MOVE INDOORS AND STAY AWAY
FROM WINDOWS. DEADLY LIGHTNING...BRIEF GUSTY WINDS UP TO 40 MPH
AND SMALL HAIL ARE POSSIBLE WITH THIS STORM.
VC
Special weather statement, Aug 27, 8:53 PM CDT, 1 hour 51 minutes before
MNZ011-280215-

SPECIAL WEATHER STATEMENT...CORRECTED FOR DATE
NATIONAL WEATHER SERVICE ST CLOUD MN
850 PM CDT MON AUG 27 1990

...A LARGE ISOLATED THUNDERSTORM DEVELOPED OVER CENTRAL MINNESOTA...

AT 845 PM CDT RADAR INDICATED A STRONG THUNDERSTORM WITH HEAVY RAIN
LOCATED 5 MILES SOUTH OF LITTLE FALLS ALONG THE MISSISSIPPI RIVER.
THE STORM EXTENDED WEST TO HOLDINGFORD...16 MILES NORTHWEST OF ST
CLOUD.

THE THUNDERSTORM WAS MOVING SOUTHEAST 25 MPH. IT WILL MOVE THROUGH
THE CITY OF RICE AROUND 9 PM CDT.

PEOPLE IN THE PATH OF THIS STORM SHOULD MOVE INDOORS AND STAY AWAY
FROM WINDOWS. DEADLY LIGHTNING...BRIEF GUSTY WINDS UP TO 40 MPH
AND SMALL HAIL ARE POSSIBLE WITH THIS STORM.
VC
Special weather statement, Aug 27, 8:59 PM CDT, 1 hour 45 minutes before
MNZALL-WIZ003-006-280300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MINNEAPOLIS/ST PAUL MN
900 PM CDT MON AUG 27 1990

...POWERFUL THUNDERSTORMS ENTERING BENTON COUNTY IN OVER CENTRAL MINNESOT

AT 855 PM...A VERY STRONG THUNDERSTORM WAS OCCURRING FROM ROYALTON
TO LITTLE ROCK IN EXTREME SOUTHERN MORRISON COUNTY OF CENTRAL MINNESOTA
...ABOUT 20 MILES NORTH OF ST CLOUD.  THIS STORM IS MOVING TO THE
SOUTHEAST AT 25 TO 35 MILES AN HOUR.  IT MAY PRODUCE STRONG WIND GUSTS...
...HAIL...FREQUENT DEADLY LIGHTNING...AND VERY HEAVY RAINFALL.  PERSONS
ENGAGED IN OUTDOOR ACTIVITIES SHOULD REMAIN ALERT AND BE PREPARED TO
SEEK SAFE SHELTER IF THREATENING WEATHER APPROACHES.  TOWNS IN THE
PATH OF THIS STORM INCLUDE ROYALTON...LITTLE ROCK...RICE...SKAJA...
MAYHEW...JAKEVILLE...GILMAN...AND FOLEY.
KRAFT

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 27, 9:02 PM CDTSevere Thunderstorm WarningMPXBenton, Stearns58 min
Aug 27, 9:47 PM CDTSevere Thunderstorm WarningMPXSherburne48 min
Aug 27, 9:58 PM CDTSevere Thunderstorm WarningMPXMille Lacs37 min
Aug 27, 10:21 PM CDTSevere Thunderstorm WarningMPXIsanti54 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 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.