Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 3, NWS Duluth, MN

June 12, 1990Ashland County, Iron County, Price County, Wisconsin

NWS Duluth, MN issued this severe thunderstorm warning at Jun 12, 1990, 1:48 PM CDT for Ashland County, Iron County, Price County, Wisconsin. It was in force for 42 min.

The area

The counties it named.

The facts

Issued
Jun 12, 1990, 1:48 PM CDT (18:48 UTC)
Expired
Jun 12, 1990, 2:30 PM CDT
In force
42 min
Issued by
NWS Duluth, MN
Area
Whole counties

Counties Ashland County, WI, Iron County, WI, Price 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

Minneapolis, MN (KSTC), launched 12:00Z, 6.8 hours before the alert went out and 286 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 12:00Z on 1990-06-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 966 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, Minneapolis, MN at 12:00Z on 1990-06-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 187 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
966 J/kg
Mixed-layer CIN
-164 J/kg
Mixed-layer LCL
781 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
187 m²/s²
0-3 km storm-relative helicity
191 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.9

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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

Special weather statement, Jun 12, 1:02 PM CDT, 46 minutes before
WIZ001>004-061900-

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

...TORNADO WATCH NUMBER 446 IN EFFECT UNTIL 8 PM CDT...
AT 1255 PM CDT STRONG THUNDERSTORMS WERE LOCATED OVER EXTREME SOUTHERN
WASHBURN COUNTY WISCONSIN 10 MILES SOUTHEAST OF SHELL LAKE OR 80 MILES
SOUTH SOUTHEAST OF DULUTH MINNESOTA..AND OVER THE SOUTHWEST CORNER
OF SAWYER COUNTY WISCONSIN JUST SOUTHWEST OF RADDISON. THESE STORMS
WERE INTENSIFYING AND MOVING RAPIDILY TO THE EAST AT 50 MILES AN HOUR.

PERSONS IN EXTREME SOUTHERN WASHBURN COUNTY AND SOUTHERN SAYWER COUNTY
MAY EXPERIENCE SEVERE WEATHER DURING THE NEXT HOUR. PREPARE TO TAKE
SHELTER IF THREATENING WEATHER APPROACHES AND LISTEN FOR POSSIBLE
WARNINGS WHICH MAY BE ISSUED IN TIME.

OLSON
Special weather statement, Jun 12, 1:24 PM CDT, 24 minutes before
WIZ001>004-061920-

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

...TORNADO WATCH NUMBER 446 IN EFFECT UNTIL 8 PM CDT...
AT 115 PM CDT STRONG THUNDERSTORMS WERE LOCATED OVER SOUTHERN SAWYER
COUNTY WISCONSIN NEAR RADDISON..20 MILES SOUTHEAST OF HAYWARD. THESE
STORMS WERE MOVING RAPIDILY EAST NORTHEAST AT 50 TO 60 MILES AN HOUR
AND WILL BE EFFECTING THE FOLLOWING TOWNS DURING THE NEXT HOUR..LORETTA
IN EASTERN SAWYER COUNTY..PARK FALLS AND FIFIELD IN NORTHERN PRICE
COUNTY..GLIDDEN IN SOUTHERN ASHLAND COUNTY..AND LASTLY MERCER IN
SOUTHERN IRON COUNTY WISCONSIN.
PERSONS WITHIN THESE AFORMENTIONED AREAS MAY EXPERIENCE SEVERE WEATHER
DURING THE NEXT HOUR $AND SHOULD PREPARE TO TAKE COVER IF THREATENING
WEATHER APPROACHES AND LISTEN FOR POSSIBLE WARNINGS WHICH MAY BE ISSUE
IN TIME TO TAKE COVER.

OLSON

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 12, 1:37 AM CDTSevere Thunderstorm WarningDLHCrow Wing53 min
Jun 12, 2:26 PM CDTSevere Thunderstorm WarningDLHVilas49 min
Jun 12, 6:50 PM CDTTornado WarningDLHAshland25 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 1990Every severe thunderstorm warning 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.