Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 6, NWS Green Bay, WI

March 13, 1990Juneau County, Sauk County, Wisconsin

NWS Green Bay, WI issued this severe thunderstorm warning at Mar 13, 1990, 8:12 PM CST for Juneau County, Sauk County, Wisconsin. It was in force for 33 min.

The area

The counties it named.

The facts

Issued
Mar 13, 1990, 8:12 PM CST (02:12 UTC)
Expired
Mar 13, 1990, 8:45 PM CST
In force
33 min
Issued by
NWS Green Bay, WI
Area
Whole counties

Counties Juneau County, WI, Sauk 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, 2.2 hours before the alert went out and 178 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 1990-03-14Temperature 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 00:00Z on 1990-03-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 284 square meters per square second.19395878Sfc1 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
NaN m above ground
0-6 km bulk shear
55 kt
0-1 km storm-relative helicity
284 m²/s²
0-3 km storm-relative helicity
293 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMSN 140212
SVRMSN
WIC057-111-140245-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING 
NATIONAL WEATHER SERVICE MADISON WI
812 PM CST TUE MAR 13 1990

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 845 PM CST FOR PEOPLE IN THE FOLLOWING 
COUNTIES

   IN THE SOUTH CENTRAL PART OF WISCONSIN
      SOUTHERN JUNEAU...NORTHERN SAUK

AN INTENSE THUNDERSTORM IS LOCATED 45 MILES NORTHWEST OF MADISON
NEAR LAVALLE IN SAUK COUNTY. THIS STORM IS MOVING NORTHEAST AT
30 MPH.

WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A
STRONG BUILDING.  DO NOT STAND NEAR WINDOWS.  DO NOT USE TELEPHONES
OR ELECTRICAL APPLIANCES UNTIL THE STORM HAS PASSED.  MOTORISTS
SHOULD AVOID LOW WATER CROSSINGS.

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS 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 ROADWAYS QUICKLY...
AVOID DRIVING INTO AREAS WHERE WATER COVERS THE ROAD.

SWENSON

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, Mar 13, 6:04 PM CST, 2 hours 8 minutes before
WIZ005-008-009-012-013-140100

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREEN BAY WI
600 PM CST TUE MAR 13 1990

...SHOWERS AND THUNDERSTORMS MOVING THRU WINNEBAGO COUNTY IN NORTHEAST
   WISCONSIN...

AT 600 PM CST RADAR SHOWS AN AREA OF SHOWERS AND THUNDERSTORMS IN
WINNEBAGO COUNTY.  THIS AREA OF PRECIPITATION IS MOVING NORTHEAST
AT 40 MPH AND WILL BE IN THE GREEN BAY VICINTY BY 630 PM.  A SEVERE
THUNDERSTORM WATCH IS NOT IN EFFECT FOR 5NORTHEAST WISCONSIN BUT
PERSONS SHOULD STILL LISTEN TO POSSIBLE LATER STATEMENTS.

HELMAN
Special weather statement, Mar 13, 7:56 PM CST, 16 minutes before
WIZ005-008-009-012-013-140400

SPECIAL WEATHER AND URBAN AND SMALL STREAM FLOOD STATEMENT
NATIONAL WEATHER SERVICE GREEN BAY WI
800 PM CST TUE MAR 13 1990

...SHOWERS AND THUNDERSTORMS CONTINUE IN MOST OF NORTHEAST
   WISCONSIN...

AT 800 PM CST RADAR SHOWS MOST OF WISCONSIN COVERED BY SHOWERS
AND THUNDERSTORMS.  NO REPORTS OF SEVERE WEATHER HAVE BEEN REPORTED
IN NORTHEAST WISCONSIN.  BUT WITH THE GROUND GENERALLY STILL FROZEN
AND SATURATED BY RECENT RAINS...LOCALIZED FLOODING COULD OCCUR IN
LOW LYING AREAS.  TRAVELERS BE ALERT TO STREET FLOODING SUCH AS
UNDERPASSES...WHILE IN THE RURAL AREAS BE ALERT TO RISING SMALL STREAMS.

HELMAN

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 13, 6:11 PM CSTSevere Thunderstorm WarningGRBColumbia, Dane64 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.