Alert archive / Wisconsin / Tornado Warnings in 1990

Tornado Warning 1, NWS Milwaukee, WI

June 12, 1990Marathon County, Wisconsin

NWS Milwaukee, WI issued this tornado warning at Jun 12, 1990, 7:42 PM CDT for Marathon County, Wisconsin. It was in force for 33 min.

The area

The counties it named.

The facts

Issued
Jun 12, 1990, 7:42 PM CDT (00:42 UTC)
Expired
Jun 12, 1990, 8:15 PM CDT
In force
33 min
Issued by
NWS Milwaukee, WI
Area
Whole counties

County Marathon 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 00:00Z, 0.7 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.

Skew-T log-pSkew-T log-p diagram, Green Bay/Straub, WI at 00:00Z on 1990-06-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1537 joules per kilogram.LCLLFCEL10008507005003002001001 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 00:00Z on 1990-06-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 85 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
1537 J/kg
Mixed-layer CIN
-15 J/kg
Mixed-layer LCL
1340 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
85 m²/s²
0-3 km storm-relative helicity
152 m²/s²
Significant tornado parameter
0.5
Supercell composite
6.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMKE 130044
TORMKE
WIC073-130115-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
742 PM CDT TUE JUN 12 1990
 
THE NATIONAL WEATHER SERVICE IN MILWAUKEE/SULLIVAN HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  815 PM CDT
FOR PEOPLE IN THE FOLLOWING COUNTY...
 
IN CENTRAL WISCONSIN
          ...MARATHON
 
AT 735 PM A TORNADO WAS COMFIRMED  BY A PUBLIC OBSERVER ABOUT 5 MILES
SOUTHWEST OF THE CITY OF WAUSAU. THE TORNADO IS MOVING EAST NORTHEAST
AT 35 MPH AND IS HEADING FOR THE TOWNS OF ROTHSCHILD...SCHOFIELD AND
KELLY.
 
 
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 BASEME)NT 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.

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 12, 7:24 PM CDTSevere Thunderstorm WarningMKXMarathon51 min
Jun 12, 8:02 PM CDTSevere Thunderstorm WarningMKXClark, Taylor58 min
Jun 12, 8:11 PM CDTTornado WarningMKXMarathon19 min
Jun 12, 8:20 PM CDTSevere Thunderstorm WarningMKXLincoln40 min
Jun 12, 8:51 PM CDTTornado WarningMKXClark, Marathon54 min

Nearby

Tornado Warnings in Wisconsin, 1990Every tornado warning in 1990Tornadoes in 1990

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.