Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 20, NWS Milwaukee, WI

June 22, 1990Washington County, Wisconsin

NWS Milwaukee, WI issued this severe thunderstorm warning at Jun 22, 1990, 12:54 PM CDT for Washington County, Wisconsin. It was in force for 36 min.

The area

The counties it named.

The facts

Issued
Jun 22, 1990, 12:54 PM CDT (17:54 UTC)
Expired
Jun 22, 1990, 1:30 PM CDT
In force
36 min
Issued by
NWS Milwaukee, WI
Area
Whole counties

County Washington 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, 5.9 hours before the alert went out and 124 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 1990-06-22Temperature 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 1990-06-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 53 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
998 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
53 m²/s²
0-3 km storm-relative helicity
207 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 KMKE 221755
SVRMKE
WIC131-221830-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
1254 PM CDT FRI JUN 22 1990
 
THE NATIONAL WEATHER SERVICE IN MILWAUKEE/SULLIVAN HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  130 PM CDT
FOR PEOPLE IN THE FOLLOWING COUNTY...
 
IN SOUTHEAST WISCONSIN
          ...WASHINGTON
 
AT 1250 PM A STORM SPOTTER REPORTED TREE LIMBS DOWN AND MARBLE SIZED
HAIL IN JACKSON IN WASHINGTON COUNTY. THIS WAS 30 MILES NORTHWEST OF
MILWAUKEE.
 
THE STORMS WERE MOVING NORTHEEAST AT 30 MPH AND WILL AFFECT THE
TOWNS OF SLINGER AND WEST BEND BEFORE MOVING INTO NORTHERN WASHINGTON
COUNTY.
 
A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA.  REMEMBER
SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES
WITH LITTLE OR NO ADVANCE WARNING.  REMAIN CALM BUT BE ALERT TO
RAPIDLY CHANGING WEATHER CONDITIONS.

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 22, 10:49 AM CDT, 2 hours 5 minutes before
WIZALL-222200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE WI
1045 AM CDT FRI JUN 22 1990

...RAIN OVER MUCH OF SOUTH..CENTRAL AND EASTERN WISCONSIN...

RAIN WILL CONTINUE TO FALL OVER MUCH OF SOUTH...CENTRAL AND EASTERN
WISCONSIN.  AT 1045 AM SOAKING RAINS WERE FALLING OVER PARTS OF THE
SOUTHWEST THROUGH CENTRAL AND PARTS OF NORTHEAST AND EAST CENTRAL
WISCONSIN.

PERSISTANT RAINS BETWEEN MADISON GREEN BAY WAUSAU AND PRARIE DU CHEIN
MAY CAUSE SOME LOCALIZED FLOODING OF SMALL STREAMS..AND LOW AREAS.
MOTORISTS SHOULD NOT ATTEMPT TO CROSS ANY FLOODED RAODS.

SINCE THE SYSTEM CAUSING THE RAINS IS A SLOW MOVER THE RAINS WILL
CONTINUE THIS AFTERNOON OVER MUCH OF THE AREA NOW RECEIVING RAIN.

HENTZ
Special weather statement, Jun 22, 12:33 PM CDT, 21 minutes before
WIZ017-020-221830-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE WI
1230 PM CDT FRI JUN 22 1990

...RAPIDLY DEVELOPING STORM IN EASTERN RACINE COUNTY...

AT 1225 PM CDT RADAR SHOWS A RAPIDLY DEVELOPING THUNDERSTORM IN
EASTERN RACINE COUNTY...NEAR THE CITY OF WATERFORD...15 MILES
SOUTHWEST OF MILWAUKEE.  SO FAR NO REPORTS HAVE BEEN RECEIVED BUT
PERSONS IN RACINE AND MILWAUKEE COUNTIES SHOULD BE AWARE OF
THIS STORM AND LISTEN TO POSSIBLE LATER STATEMENTS.

A TORNADO WATCH IS IN EFFECT FOR A PORTION OF SOUTHEAST WISCONSIN.

HELMAN

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 22, 11:56 AM CDTTornado WarningMKXWaukesha34 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.