Alert archive / Wisconsin / Tornado Warnings in 1994

Tornado Warning 8, NWS Green Bay, WI

July 4, 1994Columbia County, Wisconsin

NWS Green Bay, WI issued this tornado warning at Jul 4, 1994, 3:33 PM CDT for Columbia County, Wisconsin. It was in force for 42 min.

The area

The counties it named.

The facts

Issued
Jul 4, 1994, 3:33 PM CDT (20:33 UTC)
Expired
Jul 4, 1994, 4:15 PM CDT
In force
42 min
Issued by
NWS Green Bay, WI
Area
Whole counties

County Columbia County, WI

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 12:00Z, 8.6 hours before the alert went out and 150 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 1994-07-04Temperature 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 1994-07-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 232 square meters per square second.1939Sfc1 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
577 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
232 m²/s²
0-3 km storm-relative helicity
284 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 KMSN 042036 RRA
TORMSN
WIC021-042115-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MADISON WI
333 PM CDT MON JUL 4 1994
 
THE NATIONAL WEATHER SERVICE IN MADISON HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  415 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTH CENTRAL WISCONSIN
 
   ...COLUMBIA COUNTY
 
AT 330 PM CDT OFFICIALS NEAR THE TOWN OF MERRIMAC HAVE SIGHTED A TORNADO
NEAR THE WISCONSIN RIVER MOVING NORTHEAST AT 40 MPH. PERSONS LIVING IN
THE TOWNS OF PORTAGE...PARDEEVILLE AND WYOCENA ARE IN THE PATH OF THIS S
RSHOULD TAKE COVER IMMEDIATELY.
 
 
MC MAHON

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 4, 2:16 PM CDTSevere Thunderstorm WarningGRBDane, Green44 min
Jul 4, 2:26 PM CDTTornado WarningGRBDane, Green34 min
Jul 4, 2:58 PM CDTTornado WarningGRBDane17 min
Jul 4, 3:17 PM CDTSevere Thunderstorm WarningGRBColumbia, Sauk43 min
Jul 4, 4:23 PM CDTTornado WarningGRBGreen Lake52 min
Jul 4, 5:22 PM CDTTornado WarningGRBWaushara38 min
Jul 4, 5:39 PM CDTTornado WarningGRBWaupaca36 min
Jul 4, 5:47 PM CDTTornado WarningGRBDane43 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.