Alert archive / Minnesota / Severe Thunderstorm Warnings in 1989

Severe Thunderstorm Warning 97, NWS Twin Cities, MN

August 31, 1989Dodge County, Mower County, Olmsted County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Aug 31, 1989, 7:38 PM CDT for Dodge County, Mower County, Olmsted County, Minnesota. It was in force for 37 min.

The area

The counties it named.

The facts

Issued: Aug 31, 1989, 7:38 PM CDT (00:38 UTC)
Expired: Aug 31, 1989, 8:15 PM CDT
In force: 37 min
Issued by: NWS Twin Cities, MN
Area: Whole counties

Counties Dodge County, MN, Mower County, MN, Olmsted 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, 0.6 hours before the alert went out and 129 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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 KRST 010039
SVRRST
MNC047-147-039-099-109-010115-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ROCHESTER MN
738 PM CDT THU AUG 31 1989
 
THE NATIONAL WEATHER SERVICE IN ROCHESTER HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  815 PM CDT
FOR PEOPLE IN THE FOLLOWING COUNTIES...
 
IN SOUTH CENTRAL MINNESOTA
          ...FREEBORN...SOUTHEASTERN STEELE
IN SOUTHEAST MINNESOTA
          ...DODGE...NORTHERN MOWER...OLMSTED
 
AT 7 30 PM CDT...RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS FROM
10 MILES NORTHWEST OF DOWNTOWN ROCHESTER TO 15 MILES NORTHWEST OF
ALBERT LEA...MOVING EAST AT 40 MILES AN HOUR.
 
CITIES INCLUDED IN THIS WARNING ARE...ROCHESTER...ALBERT
LEA...BLOOMING PRARIE...HAYFIELD AND AUSTIN.
 
 
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 QUICKLY SO
DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.
 
IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER FROM THE WEATHER IN A
STRONG BUILDING.  DAMAGING WIND...LARGE HAIL...VERY HEAVYD RAIN...
AND DEADLY LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS.
STAY INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.
DOM/EFFERTZ

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, 2:03 PM CDT, 5 hours 35 minutes before

LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ST CLOUD MN
200 PM CDT THU AUG 31 1989

...ATTN SELS...

PRELIMINARY STORM DATA REPORT FOR CENTRAL MINNESOTA FOR AUG 31:

1015 AM CDT    GOLF BALL HAIL     SOUTHERN TODD COUNTY...6 MILES
                                  NORTH OF SAUK CENTRE...40 MILES
                                  NORTHWEST OF ST CLOUD.

1034 AM CDT    ONE INCH HAIL      STEARNS COUNTY...ST ROSA...
                                  25 MILES NORTHWEST OF ST CLOUD.

1213 PM CDT    3/4 INCH HAIL      POPE COUNTY...LOWRY...12 MILES
                                  SOUTH OF ALEXANDRIA.

NISTLER

Special weather statement, Aug 31, 3:00 PM CDT, 4 hours 38 minutes before

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE MINNEAPOLIS/ST PAUL MN
250 PM CDT THU AUG 31 1989

STRONG AND IN SOME CASES SEVERE THUNDERSTORMS HAVE REGENERATED FROM
NEAR ST CLOUD TO JUST NORTH OF ANNANDALE ACROSS EASTERN STEARNS AND
FAR NORTHERN WRIGHT COUNTY.

A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR PARTS OF STEARNS..
SHERBURNE AND BENTON COUNTIES UNTIL 330 PM.

AT 245 PM..THUNDERSTORMS EXTENDED FROM NEAR LITCHFIELD AND ANNANDALE TO
ST CLOUD AND ON FURTHER EAST TOWARD CAMBRIDGE.

THE STORMS WERE MOVING EAST AT 30 MILES AN HOUR BUT THE MOST RECENT
DEVELOPMENT HAS BEEN ALONG THE SOUTHWEST PORTION OF THE AREA ACROSS
WRIGHT AND MEEKER COUNTIES OR IN ARE[AS NORTHWEST OF MINNEAPOLIS.

PERSONS IN EAST CENTRAL MINNESOTA SHOULD KEEP ABREAST OF THIS DEVELOPING
WEATHER SITUATION AND LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS.

Local storm report, Aug 31, 5:34 PM CDT, 2 hours 4 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, 1 hour 19 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

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 31, 7:06 PM CDT	Severe Thunderstorm Warning	MPX	Faribault, Freeborn	39 min
Aug 31, 7:38 PM CDT	Severe Thunderstorm Warning	MPX	Freeborn, Steele	37 min
Aug 31, 8:18 PM CDT	Severe Thunderstorm Warning	MPX	Faribault, Martin	27 min
Aug 31, 10:41 PM CDT	Severe Thunderstorm Warning	MPX	Pope	34 min
Aug 31, 11:36 PM CDT	Severe Thunderstorm Warning	MPX	McLeod	39 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 1989 Every 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.