Alert archive / Minnesota / Severe Thunderstorm Warnings in 1989

Severe Thunderstorm Warning 100, NWS Twin Cities, MN

August 31, 1989Pope County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Aug 31, 1989, 10:41 PM CDT for Pope County, Minnesota. It was in force for 34 min.

The area

The counties it named.

The facts

Issued
Aug 31, 1989, 10:41 PM CDT (03:41 UTC)
Expired
Aug 31, 1989, 11:15 PM CDT
In force
34 min
Issued by
NWS Twin Cities, MN
Area
Whole counties

County Pope 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 166 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 1989-09-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 00:00Z on 1989-09-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 79 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
595 m above ground
0-6 km bulk shear
60 kt
0-1 km storm-relative helicity
79 m²/s²
0-3 km storm-relative helicity
290 m²/s²
Significant tornado parameter
0.0
Supercell composite
6.6

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMSP 010341
SVRSTC
MNC121-010415-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING 
NATIONAL WEATHER SERVICE SAINT CLOUD MN
ISSUED BY MINNEAPOLIS MN
1041 PM CDT THU AUG 31 1989

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 1115 PM CDT FOR PEOPLE IN THE FOLLOWING 
COUNTY

   IN THE WEST CENTRAL PART OF MINNESOTA
      SOUTHERN POPE

AT.....1025 PM CDT TWIN CITIS RADAR INDICATED A SEVERE THUNDER-
STORM ENTERING SOUTWEST POPE COUTY NEAR LAKE EMILY. THIS SEVERE
STORM HAS PRODUCED ONE INCH HAIL NEAR HANDCOCK IN STEVEN COUNTY
EARLIER THIS EVENING. MOVEMENT WAS TO THE EAST AT 35 MILES AN
HOUR AND WILL PASS NEAR THE CITIES OF TERRACE AND GILCREST.

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55 MPH...
DESTRUCTIVE HAIL..DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR YOUR
PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QEUICKLY SO DON`T DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD. ALSO REMEMBER SEVERE
THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH
LITTLE OR NO ADVANCE 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

Local storm report, Aug 31, 5:34 PM CDT, 5 hours 7 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE MINNEAPOLIS, MN
534 PM CDT THU AUG 31 1989

3:47 PM  TREES DOWN IN BUFFALO MINNESOTA
3:54 PM  1-11/2 HAIL IN HANOVER MINNESOTA
3:55 PM  BASEBALL HAIL NEAR ST. MICHEAL MINNESOTA
4:01 PM  PUBLIC REPORT OF FUNNEL CLOUD FOREST LAKE MINNESOTA
4:15 PM  GOLFBALL HAIL TWIN CITIES SUBURB OFMAPLE GROVE MINNESOTA
4:20 PM  PING PONG HAIL MAPLE GROVE MINNESOTA
4:24 PM  1 INCH HAIL MEDINA MINNESOTA
4:25 PM  POSSIBLE TORNADO BROOKLYN PARK MINNESOTA BY SHERIFF
4:25 PM  GOLFBALL HAIL HIGHWAY 94 AND 694 MINNEAPOLIS
4:28 PM  1-11/2 HAIL OSSEO AND MAPLE GROVE AREAS OF THE TWIN CITIES
4:32 PM  11/2 HAIL NEW HOPE MINNESOTA
4:34 PM  11/2 HAIL 49TH AND BOOIN IN THE TWIN CITIES SUBURB OF NEW HOPE
4:52 PM  11/2 HAIL BROOKLYN PARK MINNESOTA
5:00 PM  1/2 HAIL ST ANTHONY MINNESOTA
5:00 PM  DIME SIZE HAIL UNIVERSITY OF MINNESOTA
5:12 PM  1 INCH HAIL DOWNTOWN ST PAUL
5:11 PM  3/4 HAIL ST PAUL AIRPORT
5:14 PM  1-11/2 OF GOLF BgALL HAIL ON GROUND AREA OF STATE FAIR IN
         ST PAUL MINNESOTA
Special weather statement, Aug 31, 6:19 PM CDT, 4 hours 22 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MINNEAPOLIS/ST PAUL MN
620 PN CDT THU AUG 31 1989

...CANCELLATION OF PART OF SEVERE THUNDERSTORM WATCH NUMBER 704...

THE NATIONAL WEATHER SERVICE HAS CLEARED THE FOLLOWING COUNTIES FROM
SEVERE THUNDERSTORM WATCH NUMBER 704 ISSUED EARLIER THIS AFTERNOON.

THE FOLLOWING COUNTIES HAVE BEEN CLEARED FROM THE WATCH...

WEST CENTRAL...SWIFT..CHIPPEWA..YELLOW MEDICINE..LAC QUI PARLE..

CENTRAL........KANDIYOHI..MEEKER..NORTHWEST RENVILLE..

SOUTHWEST......LINCOLN..LYON..PIPESTONE..NORTHWEST MURRAY..

JHM
Special weather statement, Aug 31, 8:49 PM CDT, 1 hour 52 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE MINNEAPOLIS/ST PAUL MN
848 PM CDT THU AUG 31 1989

...SEVERE THUNDERSTORM WATCH CONTINUES FOR MOST OF SOUTHERN MINNESOTA
AND LARGE PARTS OF WESTERN WISCONSIN UNTIL 10 PM CDT...

...SEVERE THUNDERSTORM WARNING UNTIL 845 PM FOR FARIBAULT AND
EASTERN MARTIN COUNTY OF SOUTH CENTRAL MINNESOTA...

AT 825 PM SHOWERS AND THUNDERSTORMS WERE SCATTERED OVER CENTRAL AND
SOUTHERN MINNESOTA AND EXTENDED INTO WEST WISCONSIN.

THUNDERSTORMS WITH VERY HEAVY RAINS WERE RACING ACROS EXTREME SOUTHERN
MINNESOTA JUST NORTH OF THE IOWA BORDER. THESE VERY HEAVY THUNDERSTORMS
EXTENDED FROM EAST OF FAIRMONT TO NEAR LACROSSE. THESE THUNDERSTORMS
ALSO HAVE HAD A HISTORY OF PRODUCING LARGE HAIL RANGING FROM MARBLE TO
BASEBALL IN DIAMETER.

OTHER SHOWERS AND THUNDERSTORMS WERE ALSO SCATTERED ACROSS CENTRAL AND
SOUTHERN MINNESOTA. AS THESE THUNDERSTORMS MOVE EAST OVER SOME OF THESE
SAME AREAS..LOCALIZED FLOODING MAY BE POSSIBLE.

MOVEMENT CONTINUES EAST AT 40 MILES AN HOUR.
RND
Special weather statement, Aug 31, 9:29 PM CDT, 1 hour 12 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MINNEAPOLIS/ST PAUL MN
925 PM CDT THU AUG 31 1989

...SEVERE THUNDERSTORM WATCH NUMBER 704 CANCELLED FOR SECTIONS OF
   CENTRAL MINNESOTA...

THE SEVERE THUNDERSTORM WATCH NUMBER 704 HAS BEEN CANCELLED IN
MINNESOTA NORTH OF A LINE FROM REDWOOD FALLS TO NORTHFIELD TO
TO LE SUEUR TO REDWOOD FALLS TO CANBY NEAR THE SOUTH DAKOTA BORDER.

THIS SEVERE THUNDERSTORM WATCH IS NO LONGER IN EFFECT FOR THE TWIN
CITIES METROPOLITAN AREA.
WJH

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 31, 7:06 PM CDTSevere Thunderstorm WarningMPXFaribault, Freeborn39 min
Aug 31, 7:38 PM CDTSevere Thunderstorm WarningMPXDodge, Mower, Olmsted37 min
Aug 31, 7:38 PM CDTSevere Thunderstorm WarningMPXFreeborn, Steele37 min
Aug 31, 8:18 PM CDTSevere Thunderstorm WarningMPXFaribault, Martin27 min
Aug 31, 11:36 PM CDTSevere Thunderstorm WarningMPXMcLeod39 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.