Alert archive / Wisconsin / Tornado Warnings in 1990

Tornado Warning 2, NWS Duluth, MN

June 12, 1990Vilas County, Wisconsin

NWS Duluth, MN issued this tornado warning at Jun 12, 1990, 8:23 PM CDT for Vilas County, Wisconsin. It was in force for 37 min.

The area

The counties it named.

The facts

Issued
Jun 12, 1990, 8:23 PM CDT (01:23 UTC)
Expired
Jun 12, 1990, 9:00 PM CDT
In force
37 min
Issued by
NWS Duluth, MN
Area
Whole counties

County Vilas 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, 1.4 hours before the alert went out and 207 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 KDLH 130123
TORDLH
WIC125-130200-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DULUTH MN
823 PM CDT TUE JUN 12 1990
 
THE NATIONAL WEATHER SERVICE IN DULUTH HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  845 PM CDT
FOR PEOPLE IN THE FOLLOWING COUNTY...
 
IN NORTH WISCONSIN
          ...WESTERN VILAS
 
AT 8 20 PM CDT VILAS COUNTY LAW ENFORECEMENT REPORTED FUNNEL CLOUDS
NEAR MANITOWISH WATERS IN WESTERN VILAS COUNTY MOVING EAST. BOULDER
JUNCTION MAY LIE IN THE PATH OF THIS STORM
 
 
IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A NEARBY REINFORCED
BUILDING.  AS A LAST RESORT...SEEK SHELTER IN A CULVERT...DITCH
OR LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

What forecasters said that day

The local office's own words before this tornado 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, Jun 12, 2:43 PM CDT, 5 hours 40 minutes before
WIZ001>004-062040-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DULUTH MN
240 PM CDT TUE JUN 12 1990

...TORNADO WATCH NUMBER 446 IN EFFECT UNTIL 8 PM CDT...
AT 235 PM CDT A LINE OF STRONG THUNDERSTORMS WAS LOCATED JUST TO THE
EAST OF DULUTH MINNESOTA. THE LINE OF THUNDERSTORMS EXTENDED FROM 50
MILES NORTHEAST OF DULUTH MINNESOTA OVER WESTERN LAKE SUPERIOR SOUTHWEST
INTO DOUGLAS COUNTY WISCONSIN THRU THE POPLAR AREA AND JUST NORTHWEST
OF THE SOLON SPRINGS AREA. THE LINE OF THUNDERSTORMS CONTINUED SOUTHWEST
INTO EASTERN PINE COUNTY MINNESOTA TO 10 MILES EAST OF SANDSTONE AND
HINCKLEY. THE LINE OF STORMS WAS MOVING NORTHEAST AT 50 MILES AN HOUR.

TO THE EAST OF THIS LINE OF STORMS SHOULD BE ON THE LOOKOUT FOR THE
POSSIBLE APPROACH OF THUNDERSTORMS DURING THE NEXT HOUR..THAT IS..
PERSONS IN THE BRULE..SOLON SPRINGS..AND GORDON AREAS OF DOUGLAS
COUNTY..AND PERSONS IN THE IRON RIVER AND PORT WING AREAS OF BAYFIELD
COUNTY WISCONSIN. BE PREPARED TO TAKE COVER IF THREATENING WEATHER
APPROACHES.
OLSON

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 12, 8:43 PM CDTSevere Thunderstorm WarningDLHOneida47 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.