Alert archive / Wisconsin / Tornado Warnings in 1994

Tornado Warning 19, NWS Green Bay, WI

July 6, 1994Winnebago County, Wisconsin

NWS Green Bay, WI issued this tornado warning at Jul 6, 1994, 7:57 PM CDT for Winnebago County, Wisconsin. It was in force for 33 min.

The area

The counties it named.

The facts

Issued
Jul 6, 1994, 7:57 PM CDT (00:57 UTC)
Expired
Jul 6, 1994, 8:30 PM CDT
In force
33 min
Issued by
NWS Green Bay, WI
Area
Whole counties

County Winnebago County, WI

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 00:00Z, 1.0 hours before the alert went out and 63 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 1994-07-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1475 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 1994-07-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 42 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
1475 J/kg
Mixed-layer CIN
-48 J/kg
Mixed-layer LCL
944 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
42 m²/s²
0-3 km storm-relative helicity
59 m²/s²
Significant tornado parameter
0.2
Supercell composite
1.5

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KGRB 070058
TORGRB
WIC139-070130-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE GREEN BAY WI
757 PM CDT WED JUL 6 1994
 
THE NATIONAL WEATHER SERVICE IN GREEN BAY HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  830 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN EAST CENTRAL WISCONSIN
 
   ...SOUTHERN WINNEBAGO COUNTY
 
AT 755 PM...THE WINNEBAGO COUNTY SHERIFF REPORTED A TORNADO IN FAR
SOUTHWEST WINNEBAGO COUNTY NEAR EUREKA OR ABOUT 15 MILES WEST OF
OSHKOSH. THE TORNADO WAS MOVING EAST AT 20 MILES AN HOUR AND WILL LIKELY
AFFECT EUREKA...WAUKAU...AND OSHKOSH THROUGH 830 PM.
 
IF YOU ARE IN THE PATH OF A TORNADO...THE SAFEST PLACE IS A
BASEMENT.  GET UNDER A WORKBENCH OR PIECE OF STURDY FURNITURE.
IF NO BASEMENT IS AVAILABLE...SEEK SHELTER IN AN INTERIOR ROOM
SUCH AS A CLOSET ON THE LOWEST FLOOR.  USE BLANKETS...PILLOWS...
OR CUSHIONS TO COVER YOUR BODY.  AVOID WINDOWS.
 
JJ/DI
 
 
&

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

Local storm report, Jul 6, 4:59 PM CDT, 2 hours 58 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREEN BAY WI
500 PM CDT WED JUL 6 1994

ATTN SELS...

WEATHER EVENTS OF JULY 5 1994 /LATE AND ADDITIONAL REPORTS/

TIME          COUNTY      LOCATION                 EVENT

1000 AM CDT   CALUMET     CHILTON AREA             MARBLE AND BASEBALL
                          /18 E OSH/               SIZE HAIL.  MINOR
                                                   PROPERTY DAMAGE
                        l                           REPORTED.

ISAACSON
Special weather statement, Jul 6, 7:00 PM CDT, 57 minutes before
WIZ011>013-019>022-031-037>040-048>050-503-070105-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREEN BAY WI
700 PM CDT WED JUL 6 1994

...SEVERE THUNDERSTORM WATCH UNTIL MIDNIGHT SOUTH OF GREEN BAY...

THE WATCH INCLUDES THE DOOR PENINSULA...THE BAY OF GREEN BAY...AND LAKE
MICHIGAN SOUTH OF WASHINGTON ISLAND.

AT 655 PM...RADAR INDICATED A LINE OF STRONG THUNDERSTORMS FROM 25
MILES NORTH OF MADISON TO JUST NORTH OF MILWAUKEE.  THE LINE OF STORMS
WAS MOVING NORTHEAST AT 25 MILES AN HOUR.  AT THE PRESENT RATE...
THUNDERSTORMS SHOULD REACH OSHKOSH AROUND 8 PM... APPLETON BY
830 PM...THEN GREEN BAY AND MANITOWOC AROUND 9 PM.

THESE STORMS HAVE HAD A HISTORY OF PRODUCING SEVERE WEATHER AS THEY
MOVED THROUGH SOUTH CENTRAL AND SOUTHEAST WISCONSIN.  AREA RESIDENTS ARE
URGED TO STAY TUNED TO NOAA WEATHER RADIO OR COMMERCIAL TELEVISION OR
RADIO FOR FURTHER UPDATES ON THIS POTENTIALLY DANGEROUS SITUATION.

JUSKIE
Special weather statement, Jul 6, 7:50 PM CDT, 7 minutes before
WIZ048-049-070155-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREEN BAY WI
750 PM CDT WED JUL 6 1994

...STRONG THUNDERSTORMS ENTERING WINNEBAGO COUNTY...

AT 745 PM...RADAR INDICATED A LINE OF STRONG THUNDERSTORMS ENTERING
SOUTHERN WINNEBAGO COUNTY.  THE STRONGEST STORMS WERE LOCATED IN FAR
NORTHEAST GREEN LAKE COUNTY NEAR BERLIN WHICH IS 30 MILES SOUTHWEST OF
APPLETON.  THESE STORMS WERE MOVING NORTHEAST AT 25 MILES AN HOUR.  SOME
TOWNS IN THE PATH OF THESE STORMS INCLUDE EUREKA...OMRO...AND
WINNECONNE.

WHEN THUNDERSTORMS ARE OCCURRING...YOU SHOULD MOVE INSIDE A STRONG
BUILDING.  DO NOT STAND NEAR WINDOWS.  DO NOT USE TELEPHONES OR
ELECTRICAL APPLIANCES UNTIL THE STORMS HAVE PASSED.

JUSKIE
Special weather statement, Jul 6, 7:52 PM CDT, 5 minutes before
WIZ048-049-070155-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREEN BAY WI
750 PM CDT WED JUL 6 1994

...STRONG THUNDERSTORMS ENTERING WINNEBAGO COUNTY...

AT 745 PM...RADAR INDICATED A LINE OF STRONG THUNDERSTORMS ENTERING
SOUTHERN WINNEBAGO COUNTY.  THE STRONGEST STORMS WERE LOCATED IN FAR
NORTHEAST GREEN LAKE COUNTY NEAR BERLIN WHICH IS 30 MILES SOUTHWEST OF
APPLETON.  THESE STORMS WERE MOVING NORTHEAST AT 25 MILES AN HOUR.  SOME
TOWNS IN THE PATH OF THESE STORMS INCLUDE EUREKA...OMRO...AND
WINNECONNE.

WHEN THUNDERSTORMS ARE OCCURRING...YOU SHOULD MOVE INSIDE A STRONG
BUILDING.  DO NOT STAND NEAR WINDOWS.  DO NOT USE TELEPHONES OR
ELECTRICAL APPLIANCES UNTIL THE STORMS HAVE PASSED.

JUSKIE

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 6, 7:36 PM CDTTornado WarningGRBAdams24 min
Jul 6, 7:49 PM CDTTornado WarningGRBGreen Lake11 min
Jul 6, 8:28 PM CDTSevere Thunderstorm WarningGRBWaushara62 min
Jul 7, 1:27 PM CDTSevere Thunderstorm WarningGRBDane, Green, Rock63 min
Jul 7, 2:26 PM CDTTornado WarningGRBDane, Iowa64 min
Jul 7, 2:51 PM CDTTornado WarningGRBColumbia, Sauk54 min
Jul 7, 3:54 PM CDTTornado WarningGRBGreen Lake, Marquette66 min
Jul 7, 4:26 PM CDTTornado WarningGRBWaushara64 min
Jul 7, 4:51 PM CDTTornado WarningGRBAdams, Juneau69 min

Nearby

Tornado Warnings in Wisconsin, 1994Every tornado warning in 1994Tornadoes 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.