Alert archive / Minnesota / Severe Thunderstorm Warnings in 1989
Severe Thunderstorm Warning 73, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Aug 13, 1989, 8:05 PM CDT for Wright County, Minnesota. It was in force for 40 min.
The area
The counties it named.
The facts
- Issued
- Aug 13, 1989, 8:05 PM CDT (01:05 UTC)
- Expired
- Aug 13, 1989, 8:45 PM CDT
- In force
- 40 min
- Issued by
- NWS Twin Cities, MN
- Area
- Whole counties
County Wright 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, 1.1 hours before the alert went out and 46 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
- 886 J/kg
- Mixed-layer CIN
- -12 J/kg
- Mixed-layer LCL
- 1848 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 35 m²/s²
- 0-3 km storm-relative helicity
- 57 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KMSP 140105
SVRMSP
MNC171-140145-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MINNEAPOLIS MN
805 PM CDT SUN AUG 13 1989
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM
WARNING EFFECTIVE UNTIL 845 PM CDT FOR PEOPLE IN THE FOLLOWING
COUNTY
IN THE CENTRAL PART OF MINNESOTA
WRIGHT
AT 752 PM CDT...A SEVERE THUNDERSTORM WAS 5 MILES WEST-NORTHWEST
OF BUFFALO...OR ABOUT 25 MILES NORTHWEST OF DOWNTOWN MINNEAPOLIS.
IT WAS MOVING SOUTH-SOUTHEAST AT 15 MILES AN HOUR...AND WILL
AFFECT THE CITIES OF BUFFALO...COKATO...AND ST. MICHAEL THROUGH
845 PM.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 13, 5:25 PM CDT, 2 hours 40 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST CLOUD MN 515 PM CDT SUN AUG 13 1989 ...SEVERE THUNDERSTORM WATCH FOR WEST CENTRAL MINNESOTA TILL 10PM... ...THUNDERSTORMS DEVELOPING OVER CENTRAL MINNESOTA... AT 500 PM CDT RADAR SHOWED AN AREA OF THUNDERSTORMS DEVELOPING FROM SOUTH OF DULUTH THROUGH THE ST CLOUD AREA. SOME OF THESE STORMS HAVE PRODUCED BRIEF HEAVY RAINS...SMALL HAIL AND FREQUENT LIGHTNING. THESE THUNDERSTORMS WERE MOVING SOUTHEAST AT 15 TO 25 MPH. A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR WEST CENTRAL MINNESOTA UNTIL 10 PM CDT. NO SEVERE WEATHER HAS BEEN REPORTED IN MINNESOTA... HOWEVER...SEVERE THUNDERSTORMS HAVE BEEN OCCURRING IN EASTERN SOUTH DAKOTA AND ARE MOVING TOWARDS WEST CENTRAL MINNESOTA. YOUNG
Special weather statement, Aug 13, 6:16 PM CDT, 1 hour 49 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MINNEAPOLIS/ST PAUL MN 615 PM CDT SUN AUG 13 1989 ...THUNDERSTORMS CONTINUE TO DEVELOP OVER CENTRAL AND EAST CENTRAL MINNESOTA...AND MOVING INTO WEST CENTRAL WISCONSIN... AT 610 PM CDT...THE LEADING EDGE OF A A LINE OF SHOWERS AND THUNDERSTORMS EXTENDED FROM 25 MILES SOUTH OF ST. CLOUD...TO JUST WEST OF GRANTSBURG WISCONSIN...AND ON TO 30 MILES EAST OF GRANTSBURG. THE LEADING EDGE ACTUALLY STRETCHED FROM NEAR ANNANDALE...TO NEAR CAMBRIDGE...TO JUST SOUTHEAST OF PINE CITY...ON TO NEAR SHELL LAKE WISCONSIN. SOME OF THESE STORMS MAY PRODUCE HEAVY RAINS...SMALL HAIL...GUSTY WIND...AND FREQUENT LIGHTNING STRIKES. MOVEMENT OF THE STORMS WAS SOUTHEAST AT 15 MILES AN HOUR. PEOPLE IN THESE AREAS SHOULD GET INSIDE...DUE TO THE FREQUENT LIGHTNING AND GUSTY WINDS. ANY ONE OF THESE STORMS MAY PRODUCE BRIEF WIND GUSTS TO 50 MILES AN HOUR...SO LISTEN FOR LATER STATEMENTS. TDK
Special weather statement, Aug 13, 6:42 PM CDT, 1 hour 23 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST CLOUD MN 630 PM CDT SUN AUG 13 1989 ...SEVERE THUNDERSTORM WATCH FOR WEST CENTRAL MINNESOTA TILL 10PM... ...THUNDERSTORMS CONTINUE TO DEVELOP OVER CENTRAL MINNESOTA... AT 630 PM CDT RADAR SHOWED AN AREA OF THUNDERSTORMS OVER CENTRAL MINNESOTA WITH THE STRONGEST STORMS IN A LINE EXTENDING FROM PINE CITY TO ST CLOUD TO ALEXANDRIA. THESE STRONG THUNDERSTORMS WERE MOVING EAST SOUTHEAST AT 15 MPH. BRIEF HEAVY RAINS...SMALL HAIL AND WIND GUSTS TO 40 MPH HAVE BEEN REPORTED WITH THESE STORMS. A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR WEST CENTRAL MINNESOTA UNTIL 10 PM CDT. NO SEVERE WEATHER HAS BEEN REPORTED IN MINNESOTA... HOWEVER...SEVERE THUNDERSTORMS CONTINUE TO DEVELOP IN EASTERN SOUTH DAKOTA. THESE SEVERE THUNDERSTORMS WERE MOVING TO THE SOUTHEAST AT 25 MPH AND HAVE NOT YET MOVED INTO MINNESOTA. YOUNG
Local storm report, Aug 13, 7:07 PM CDT, 58 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ST. CLOUD MN
700 PM CDT SUN AUG 13 1989
...ATTN SELS...
PRELIMINARY STORM DATA REPORT FROMNTRAL MINNESOTA FOR 13 AUG 1989..
...EVENT... DATE/TIME ..............LOCATION...............
1 INCH HAIL 13/1850 CDT CAMBRIDGE MINNESOTA...45 MILES EAST
OF ST. CLOUD REPORTED BY RALPH ROBB...
METEROLOGIST FROM WATERLOO, IOWA.
FRASE9RThe office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 13, 7:03 PM CDT | Severe Thunderstorm Warning | MPX | Chisago, Isanti | 42 min |
| Aug 13, 8:19 PM CDT | Severe Thunderstorm Warning | MPX | Anoka, Hennepin | 46 min |
| Aug 13, 9:01 PM CDT | Severe Thunderstorm Warning | MPX | Carver, Hennepin | 59 min |
Nearby
Severe Thunderstorm Warnings in Minnesota, 1989Every severe thunderstorm warning in 1989
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.