Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 33, NWS Milwaukee, WI

July 20, 1994Dodge County, Wisconsin

NWS Milwaukee, WI issued this severe thunderstorm warning at Jul 20, 1994, 12:15 AM CDT for Dodge County, Wisconsin. It was in force for 45 min.

The area

The counties it named.

The facts

Issued
Jul 20, 1994, 12:15 AM CDT (05:15 UTC)
Expired
Jul 20, 1994, 1:00 AM CDT
In force
45 min
Issued by
NWS Milwaukee, WI
Area
Whole counties

County Dodge County, WI

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 00:00Z, 5.3 hours before the alert went out and 128 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 1994-07-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1567 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 1994-07-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 59 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
1567 J/kg
Mixed-layer CIN
-29 J/kg
Mixed-layer LCL
933 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
59 m²/s²
0-3 km storm-relative helicity
90 m²/s²
Significant tornado parameter
0.5
Supercell composite
3.7

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMKE 200518 RRA
SVRMKE
WIC027-200600-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
1215 AM CDT WED JUL 20 1994
 
THE NATIONAL WEATHER SERVICE IN MILWAUKEE/SULLIVAN HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  100 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTHEAST WISCONSIN
 
   ...DODGE COUNTY
 
AT 1215 AM...NATIONAL WEATHER SERVICE DOPPLER RADAR SHOWED THE LEADING
EDGE OF A SEVERE THUNDERSTORM ENTERING FAR WESTERN DODGE COUNTY...ABOUT
10 MILES WEST OF BEAVER DAM. THE STORM WAS MOVING EAST AT 40 MILES AN
HOUR TOWARD THE TOWNS OF BEAVER DAM...LOWELL....AMONG OTHER CITIES IN
CENTRAL AND SOUTHERN DODGE COUNTY. THE STORM WILL PRODUCE WIND GUSTS IN
EXCESS OF 55 MILES AN HOUR OVER CENTRAL AND SOUTHERN DODGE COUNTY
BETWEEN 1215 AM AND 100 AM.
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60
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 ROADS QUICKLY SO
DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.
 
J LAST

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, Jul 19, 8:46 PM CDT, 3 hours 29 minutes before
WIZ053>057-061>063-067>069-200300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MADISON WI
845 PM CDT TUE JUL 20 1994

...TORNADO WATCH FOR SOUTHWEST WISCONSIN UNTIL MIDNIGHT...

AT 840 PM CDT LOCAL WEATHER RADAR DETECTED LIGHT RAIN SHOWERS IN
CENTRAL AND SOUTHERN WISCONSIN DRIFTING SLOWLY TO THE SOUTHEAST.
STRONGER THUNDERSTORMS WERE DETECTED BY NATIONAL RADAR NETWORK
IN NORTHERN IOWA AND SOUTHERN MINNESOTA MOVING TO THE EAST.
A FEW TORNADOS HAVE ALSO BEEN REPORTED THIS EVENING IN IOWA
AND MINNESOTA.

THERE WILL BE A CHANCE FOR SEVERE WEATHER IN SOUTHWEST WISCONSIN
BETWEEN 9PM CDT AND MIDNIGHT.  SOME SPECIFIC COUNTIES INCLUDED IN
THE TORNADO WATCH ARE CRAWFORD..RICHLAND..GRANT..IOWA AND LAFAYETTE.
RESIDENTS OF SOUTHWEST WISCONSIN ARE URGED TO STAY INFORMED OF
WEATHER CONDITIONS AND POSSIBLE SEVERE STORMS TONIGHT.
MEM
Special weather statement, Jul 19, 10:15 PM CDT, 2 hours before
WIZ053>057-061>063-067>069-200500-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MADISON WI
1015 PM CDT TUE JUL 19 1994

...TORNADO WATCH FOR SOUTHWEST WISCONSIN UNTIL MIDNIGHT...

AT 1010 PM CDT NATIONAL WEATHER SERVICE RADAR DETECTED SHOWERS
AND THUNDERSTORMS PUSHING ACROSS THE WISCONSIN STATE LINE FROM
LACROSSE TO PRAIRIE DU CHIEN.  SOUTH OF THAT AREA MORE SHOWERS
AND STORMS WERE MOVING EAST ACROSS NORTHEAST IOWA HEADING TOWARD
THE SOUTHWEST CORNER OF WISCONSIN.  HEAVY RAINS AND DEADLY LIGHTNING
WERE OCCURING WITH THESE STORMS.  SMALL HAIL AND HIGH WINDS ARE
ALSO POSSIBLE.

RESIDENTS OF SOUTHWEST WISCONSIN ARE URGED TO STAY INFORMED OF
CHANGING WEATHER CONDITIONS AND BE READY TO TAKE SHELTER FROM
POSSIBLE SEVERE STORMS TONIGHT.

MEM
Special weather statement, Jul 19, 11:55 PM CDT, 20 minutes before
WIZ051-052-058>060-064>066-070>072-502-200700-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
1155 PM CDT TUE JUL 19 1994

...LEADING EDGE OF STRONG THUNDERSTORM WINDS MOVING TOWARD SOUTHEAST
WISCONSIN...

AT 1155 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR SHOWED THE LEADING
EDGE OF A LINE OF STRONG THUNDERSTORMS EXTENDING FROM SOUTHERN ADAMS
COUNTY THROUGH COLUMBIA COUNTY...SOUTHWEST TO NEAR DUBUQUE IOWA.  THE
THUNDERSTORMS WITH THE STRONGEST WINDS...IN EXCESS OF 50 MILES AN
HOUR...WERE ABOUT 35 MILES WEST OF BEAVER DAM.

THE STORMS WERE MOVING EAST AT 40 MILES AN HOUR...AND WILL BE INTO
WESTERN DODGE COUNTY BY 1230 AM.  STAY TUNED TO NATIONAL WEATHER
SERVICE RADIO...OR COMMERCIAL RADIO OR TELEVISION...FOR LATER
STATEMENTS AND POSSIBLE WARNINGS.

J LAST
Special weather statement, Jul 19, 11:57 PM CDT, 18 minutes before
WIZ051-052-058>060-064>066-070>072-502-200700-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
1155 PM CDT TUE JUL 19 1994

...LEADING EDGE OF STRONG THUNDERSTORM WINDS MOVING TOWARD SOUTHEAST
WISCONSIN...

AT 1155 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR SHOWED THE LEADING
EDGE OF A LINE OF STRONG THUNDERSTORMS EXTENDING FROM SOUTHERN ADAMS
COUNTY THROUGH COLUMBIA COUNTY...SOUTHWEST TO NEAR DUBUQUE IOWA.  THE
THUNDERSTORMS WITH THE STRONGEST WINDS...IN EXCESS OF 50 MILES AN
HOUR...WERE ABOUT 35 MILES WEST OF BEAVER DAM.

THE STORMS WERE MOVING EAST AT 40 MILES AN HOUR...AND WILL BE INTO
WESTERN DODGE COUNTY BY 1230 AM.  STAY TUNED TO NATIONAL WEATHER
SERVICE RADIO...OR COMMERCIAL RADIO OR TELEVISION...FOR LATER
STATEMENTS AND POSSIBLE WARNINGS.

J LAST
Special weather statement, Jul 20, 12:10 AM CDT, 5 minutes before
WIZ053>057-061>063-067>069-200800-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MADISON WI
1210 AM CDT WED JUL 20 1994

...STRONG THUNDERSTORMS IN DANE COUNTY...

AT 1205 AM CDT NATIONAL WEATHER SERVICE RADAR DETECTED THUNDERSTORMS
IN NORTHERN AND WESTERN DANE COUNTY SPREADING EAST AROUND 35 MILES
AN HOUR.  THE STRONGEST STORM WAS IN THE NORTH NEAR MORRISONVILLE.
TORRENTIAL DOWNPOURS AND DEADLY LIGHTNING ARE ACCOMPANYING THESE
STORMS.  SMALL HAIL AND HIGH WINDS ARE ALSO POSSIBLE.

RESIDENTS OF DANE COUNTY CAN EXPECT THUNDERSTORM ACTIVITY DURING
THE NEXT HOUR.  STAY INDOORS TO AVOID BEING STRUCK BY LIGHTNING.
MOTORISTS MAY NEED TO SLOW DOWN OR PULL OVER DUE TO THE EXTREMELY
HEAVY RAINS.

MEM
Special weather statement, Jul 20, 12:11 AM CDT, 4 minutes before
WIZ053>057-061>063-067>069-200800-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MADISON WI
1210 AM CDT WED JUL 20 1994

...STRONG THUNDERSTORMS IN DANE COUNTY...

AT 1205 AM CDT NATIONAL WEATHER SERVICE RADAR DETECTED THUNDERSTORMS
IN NORTHERN AND WESTERN DANE COUNTY SPREADING EAST AROUND 35 MILES
AN HOUR.  THE STRONGEST STORM WAS IN THE NORTH NEAR MORRISONVILLE.
TORRENTIAL DOWNPOURS AND DEADLY LIGHTNING ARE ACCOMPANYING THESE
STORMS.  SMALL HAIL AND HIGH WINDS ARE ALSO POSSIBLE.

RESIDENTS OF DANE COUNTY CAN EXPECT THUNDERSTORM ACTIVITY DURING
THE NEXT HOUR.  STAY INDOORS TO AVOID BEING STRUCK BY LIGHTNING.
MOTORISTS MAY NEED TO SLOW DOWN OR PULL OVER DUE TO THE EXTREMELY
HEAVY RAINS.

MEM

Nearby

Severe Thunderstorm Warnings in Wisconsin, 1994Every severe thunderstorm warning in 1994

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.