Alert archive / Minnesota / Severe Thunderstorm Warnings in 1988
Severe Thunderstorm Warning 39, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Aug 2, 1988, 12:43 AM CDT for Morrison County, Minnesota. It was in force for 47 min.
The area
The counties it named.
The facts
- Issued
- Aug 2, 1988, 12:43 AM CDT (05:43 UTC)
- Expired
- Aug 2, 1988, 1:30 AM CDT
- In force
- 47 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, 5.7 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
- 895 J/kg
- Mixed-layer CIN
- -31 J/kg
- Mixed-layer LCL
- 2569 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 72 m²/s²
- 0-3 km storm-relative helicity
- 56 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.7
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KSTC 020550
SVRSTC
MNC097-020630-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST CLOUD MN
1243 AM CDT TUE AUG 2 1988
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING
EFFECTIVE UNTIL 130 AM CDT FOR PEOPLE IN THE FOLLOWING COUNTY OF
CENTRAL MINNESOTA:
MORRISON
INCLUDING THE CITIES OF
SWANVILLE...FLENBURG...LITLE FALLS ...RANDALL..FORT RIPLEY AND CAMP
RIPLEY.
AT 1240 AM CDT RADAR WAS SHOWING A SEVERE THUNDERSTORM NEAR SWANVILLE
IN EXTREME SOUTHWEST MORRISON COUNTY...35 MILES NORTHWEST OF ST CLOUD
THIS SEVERE THUNDERSTORM WAS MOVING NORTHEAST AT 40 MPH.
THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH YOU SHOULD PREPARE
FOR DAMAGING WIND IN EXCESS OF 55 MPH...LARGE HAIL...AND DEADLY
LIGHTNING. BOATERS SHOULD MOVE OFF LAKES TO NEARBY SHELTER. PEOPLE
OUTSIDE SHOULD MOVE INSIDE STRONG BUILDINGS BUT STAY AWAY FROM
WINDOWS.
NISTLERWhat 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 1, 6:50 PM CDT, 5 hours 53 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE MINNEAPOLIS/ST PAUL MN 648 PM CDT MON AUG 1 1988 ...TORNADO WATCH FOR PORTIONS OF CENTRAL AND NORTHERN MINNESOTA...ALONG WITH EXTREME NORTHWEST WISCONSIN AND ADJACENT AREAS OF LAKE SUPERIOR UNTIL 10 PM CDT... AT 630 PM CDT...SCATTERED SHOWERS AND THUNDERSTORMS WERE LOCATED IN A LINE EASTWARD FROM FARGO..NORTH DAKOTA..THROUGH DETROIT LAKES..TO PEQUOT LAKES IN CENTRAL MINNESOTA..TO MOOSE LAKE..THEN EAST AND SOUTHEAST OF DULUTH NEAR BRULE IN NORTHWEST WISCONSIN. THIS AREA OF SHOWERS AND THUNDERSTORMS WAS LOCATED ABOUT 30 MILES TO EITHER SIDE OF THE ABOVE DENOTED LINE. DETROIT LAKES REPORTED HEAVY RAIN..PEA SIZE HAIL..AND BRIEF WIND GUSTS IN EXCESS OF 60 MILES AN HOUR...AS ONE THUNDERSTORM RUMBLED THROUGH THAT AREA. . HEAVY RAIN AND POSSIBLE GUSTY WINDS WERE NOTED BETWEEN SANDSTONE AND MOOSE LAKE IN EAST CENTRAL MINNESOTA..AND NEAR AITKIN..NORTH OF MILLE LACS LAKE. MOVEMENT WAS NORTH AT 30 MILES AN HOUR. SJC
Special weather statement, Aug 1, 11:19 PM CDT, 1 hour 24 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST CLOUD MN
1110 PM CDT MON AUG 1 1988
...HEAVY RAINFALL AND PEA SIZED HAIL WITH STRONG WINDS IN
NORTHERN TODD COUNTY...
AT 1106 PM CDT THE TODD COUNTY SHERIFF'S DEPARTMENT REPORTED PEA
SIZED HAIL...HEAVY RAINFALL AND STRONG WINDS IN NORTHERN TODD
COUNTY AROUND BROWERVILLE AND CLARISSA...25 MILES NORTHEAST OF
ALEXANDRIA. RADAR AT 1108 PM CDT WAS SHOWING AND AREA OF
THUNDERSTORMS IN NORTHERN TODD COUNTY WHICH WAS MOVING VERY
SLOWLY SOUTHEAST AT 10 MPH. PERSON IN TODD COUNTY INCLUDING THE
CITIES OF LONG PRAIRIE...BROWERVILLE...CLARISSA...EAGLE BEND AND
HEWITT SHOULD BE ON THE ALERT FOR STRONG GUSTY WINDS...HEAVY
RAINFALL AND SMALL HAIL UNTIL 1 AM TUESDAY MORNING.
NISTLER
ZThe office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 2, 12:25 AM CDT | Severe Thunderstorm Warning | MPX | Todd | 50 min |
| Aug 2, 3:08 PM CDT | Tornado Warning | MPX | Carver, Hennepin | 52 min |
| Aug 2, 3:30 PM CDT | Severe Thunderstorm Warning | MPX | Sherburne | 30 min |
| Aug 2, 3:32 PM CDT | Tornado Warning | MPX | Anoka, Hennepin | 28 min |
| Aug 2, 3:49 PM CDT | Tornado Warning | MPX | Anoka, Ramsey, Washington | 41 min |
| Aug 2, 4:30 PM CDT | Severe Thunderstorm Warning | MPX | Washington | 15 min |
Nearby
Severe Thunderstorm Warnings in Minnesota, 1988Every severe thunderstorm warning in 1988
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.