Alert archive / Wisconsin / Tornado Warnings in 1989

Tornado Warning 14, NWS Green Bay, WI

June 26, 1989Iowa County, Wisconsin

NWS Green Bay, WI issued this tornado warning at Jun 26, 1989, 11:32 AM CDT for Iowa County, Wisconsin. It was in force for 43 min.

The area

The counties it named.

The facts

Issued
Jun 26, 1989, 11:32 AM CDT (16:32 UTC)
Expired
Jun 26, 1989, 12:15 PM CDT
In force
43 min
Issued by
NWS Green Bay, WI
Area
Whole counties

County Iowa County, WI

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

Green Bay/Straub, WI (KGRB), launched 12:00Z, 4.5 hours before the alert went out and 232 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, Green Bay/Straub, WI at 12:00Z on 1989-06-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Green Bay/Straub, WI at 12:00Z on 1989-06-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -29 square meters per square second.193958Sfc1 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
940 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
-29 m²/s²
0-3 km storm-relative helicity
-32 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMSN 261633
TORMSN
WIC049-261715-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MADISON WI
1132 AM CDT MON JUN 26 1989
 
THE NATIONAL WEATHER SERVICE IN MADISON WIHAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL 1215 PM CDT
FOR PEOPLE IN THE FOLLOWING COUNTY...
 
IN SOUTH CENTRAL WISCONSIN
          ...NORTHERN IOWA
 
AT 1122AM CDT IOWA COUNTY SHERIFFS OFFICE REPORTED HEAVY DAMAGE IN THE
AVOCA AREA OR 40 MILES WEST OF MADISON. THEY ALSO REPORTED UNCONFIRMED
TORNADO TOUCHDOWN IN THE AVOCA AREA.
 
SEEK SHELTER IMMEDIATELY.
 
IF YOU ARE IN THE PATH OF A TORNADO...THE SAFEST PLACE IS A
BASEMENT.  GET UNDER A WORKBENCH OR PIECE OF STURDY FURNITURE.
IF NO BASEMENT IS AVAILABLE...SEEK SHELTER IN AN INTERIOR ROOM
SUCH AS A CLOSET ON THE LOWEST FLOOR.  USE BLANKETS...PILLOWS...
OR CUSHIONS TO COVER YOUR BODY.  AVOID WINDOWS.
 
STIMACH

The office that day

Everything else NWS Green Bay, WI issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 26, 11:16 AM CDTSevere Thunderstorm WarningGRBRichland44 min
Jun 26, 11:42 AM CDTTornado WarningGRBSauk48 min
Jun 26, 12:12 PM CDTTornado WarningGRBColumbia, Dane48 min
Jun 26, 12:27 PM CDTTornado WarningGRBAdams48 min
Jun 26, 12:34 PM CDTTornado WarningGRBGreen41 min
Jun 26, 1:00 PM CDTTornado WarningGRBGreen Lake45 min
Jun 26, 1:10 PM CDTTornado WarningGRBRock50 min

Nearby

Tornado Warnings in Wisconsin, 1989Every tornado warning in 1989Tornadoes 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.