Alert archive / Minnesota / Severe Thunderstorm Warnings in 1987
Severe Thunderstorm Warning 106, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Aug 2, 1987, 11:34 PM CDT for Morrison County, Minnesota. It was in force for 56 min.
The area
The counties it named.
The facts
- Issued
- Aug 2, 1987, 11:34 PM CDT (04:34 UTC)
- Expired
- Aug 3, 1987, 12:30 AM CDT
- In force
- 56 min
- Issued by
- NWS Twin Cities, MN
- Area
- Whole counties
County Morrison 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, 4.6 hours before the alert went out and 139 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
- 2050 J/kg
- Mixed-layer CIN
- -50 J/kg
- Mixed-layer LCL
- 1462 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- -3 m²/s²
- 0-3 km storm-relative helicity
- 71 m²/s²
- Significant tornado parameter
- -0.0
- Supercell composite
- -0.3
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KSTC 030445 RRA
SVRSTC
MNC097-030530-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SAINT CLOUD MN
1134 PM CDT SUN AUG 2 1987
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM
WARNING EFFECTIVE UNTIL 1230 AM CDT FOR PEOPLE IN THE FOLLOWING
COUNTY 0F
CENTRAL MINNESOTA...NORTHERN HALF OF MORRISON...INCLUDING THE CITIES
OF CUSHING...RANDALL...LITTLE FALLS...FORT RIPLEY...HARDING...
SHEPHARD...AND LASTRUP.
AT 1128 PM CDT RADAR INDICATES A SEVERE THUNDERSTORM IN CENTRAL TODD
COUNTY JUST WEST OF THE CITY OF CUSHING...44 MILES NORTH NORTHWEST OF
ST. CLOUD MINNESOTA. THESE THUNDERSTORMS HAVE A HISTORY OF VERY
LARGE HAIL...UP TO ONE INCH...AND EXTREMELY HEAVY RAIN AS THEY MOVE
EAST AT 30 MILES PER HOUR.
REMEMBER SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60
MPH..DESTRUCTIVE HAIL..DEADLY LIGHTNING AND VERY HEAVY RAIN. 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 IjS SPOTTED.
TRIPLETTWhat 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 2, 9:57 PM CDT, 1 hour 37 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MINNEAPOLIS/ST PAUL MN 955 PM CDT SUN AUG 2 1987 ...SEVERE THUNDERSTORM WATCH IN EFFECT FOR PORTIONS OF CENTRAL AND NORTHERN MINNESOTA UNTIL 3 AM CDT MONDAY MORNING... AT 928 PM CDT...INTENSE THUNDERSTORMS CONTINUED OVER WEST CENTRAL AND CENTRAL MINNESOTA FROM 30 MILES NORTH OF ALEXANDRIA TO NEAR PARK RAPIDS TO DETROIT LAKES TO THE MINNESOTA/NORTH DAKOTA BORDER 45 MILES SOUTH OF FARGO. NO SEVERE WEATHER HAS BEEN REPORTED WITH THESE STORMS BUT VERY HEAVY RAINS AND MARBLE SIZE HAIL WAS REPORTED WITH THE STORMS AS THEY MOVED EAST AT 30 MILES AN HOUR. PERSONS IN CENTRAL AND NORTHERN MINNESOTA IN THE WATCH AREA SHOULD BE ON THE LOO-KOUT FOR THESE THUNDERSTORMS AND BE PREPARED TO SEEK SAFE SHELTER IF THREATENING WEATHER DEVELOPS. STANDFIELD
Special weather statement, Aug 2, 10:52 PM CDT, 42 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MINNEAPOLIS/ST PAUL MN 1050 PM CDT SUN AUG 2 1987 ...SEVERE THUNDERSTORM WATCH IN EFFECT FOR PORTIONS OF CENTRAL AND NORTHERN MINNESOTA UNTIL 3 AM CDT MONDAY MORNING... AT 1031 PM CDT...AN INTENSE THUNDERSTORM WAS LOCATED 35 MILES SOUTHWEST OF BRAINERD NEAR EAGLE BEND IN CENTRAL MINNESOTA. VERY HEAVY RAINS...FREQUENT DANGEROUS LIGHTNING AND SOME HAIL ARE LIKELY WITH THIS STORM AS IT MOVED EAST AT 30 MILES AN HOUR. THE STORM WAS PART OF AN AREA OF STRONG THUNDERSTORMS THAT EXTENDED FROM JUST NORTH OF ALEXANDRIA TO NORTH OF MILLE LACS LAKE TO 30 MILES SOUTH OF BEMIDJI TO THE MINNEOSTA/NORTH DAKOTA BORDER SOUTHEAST OF FARGO. THE SHTORMS WERE MOVING NO SEVERE WEATHER HAS BEEN REPORTED BUT PERSONS IN THESE AREAS SHOULD BE PREPARED TO MOVE TO A PLACE OF SAFETY IF SEVERE WEATHER DEVELOPS.
Nearby
Severe Thunderstorm Warnings in Minnesota, 1987Every 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.