Alert archive / Wisconsin / Tornado Warnings in 1991

Tornado Warning 3, NWS Green Bay, WI

May 22, 1991Rock County, Wisconsin

NWS Green Bay, WI issued this tornado warning at May 22, 1991, 3:55 PM CDT for Rock County, Wisconsin. It was in force for 50 min.

The area

The counties it named.

The facts

Issued
May 22, 1991, 3:55 PM CDT (20:55 UTC)
Expired
May 22, 1991, 4:45 PM CDT
In force
50 min
Issued by
NWS Green Bay, WI
Area
Whole counties

County Rock County, WI

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 12:00Z, 8.9 hours before the alert went out and 216 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 1991-05-22Temperature 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 1991-05-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 27 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
NaN m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
27 m²/s²
0-3 km storm-relative helicity
48 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMSN 222056
TORMSN
WIC105-222145-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MADISON WI
355 PM CDT WED MAY 22 1991
 
THE NATIONAL WEATHER SERVICE IN MADISON HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  445 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTH CENTRAL WISCONSIN
 
   ...ROCK COUNTY
 
AT 340 PM CDT ROCK COUNTY SHERIFF REPORTED NUMEROUS TORNADO TOUCHDOWNS
IN AND NEAR THE CITY OF JANESVILLE. ALL TORNADOS WERE MOVING NORTH.
 
SOME CITIES/TOWNS IN THE PATH OF THESE TORNADOS ARE
MILTON..FULTON..JOHNSTOWN CENTER AND LIMA CENTER.
 
 
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.
 
THIS IS A DANGEROUS STORM SITUATION.  ACT QUICKLY.  IF YOU ARE
IN THE PATH OF THIS TORNADO MOVE TO A SHELTER BELOW GROUND IF
AVAILABLE.  OTHERWISE...GO TO A SMALL INTERIOR ROOM ON THE LOWEST
FLOOR POSSIBLE.  AVOID WINDOWS.  ABANDON CARS AND MOBILE HOMES
FOR A REINFORCED BUILDING OR GET INTO A DITCH OR CULVERT.
 
PkRZEKURAT

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

Special weather statement, May 22, 11:17 AM CDT, 4 hours 38 minutes before
WIZ008-012-013-221700-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREEN BAY WI
11:15 AM CDT TUE MAY 21 1991

...STRONG THUNDERSTORMS MOVING INTO WINNEBAGO AND CALUMET COUNTIES...

AT 11 AM RADAR INDICATED A CLUSTER OF THUNDERSTORMS OVER FOND DU LAC
COUNTY IN EAST CENTRAL WISCONSIN.   THE PRECIPITATION COVERED MOST OF
FOND DU LAC COUNTY AND WAS SPREADING SLOWLY NORTHEAST INTO SOUTHEAST
WINNEBAGO AND SOUTHERN CALUMET COUNTIES AT 10 TO 15 MPH.

THESE THUNDERSTORMS HAVE BEEN PRODUCING HEAVY RAINFALL ALONG WITH
FREQUENT DANGEROUS LIGHTNING.  DUE TO THE RELATIVELY SLOW MOVEMENT
OF THE STORMS...SOME LOCALIZED FLOODING IS POSSIBLE IN PARTS OF
SOUTHEAST WINNEBAGO AND SOUTHERN CALUMET COUNTIES BY EARLY AFTERNOON.

BRUSKY
Special weather statement, May 22, 12:05 PM CDT, 3 hours 50 minutes before
WIZ008-012-013-221745-

SPECIAL WEATHER STATEMENT AND SHORT RANGE WEATHER SUMMARY
NATIONAL WEATHER SERVICE GREEN BAY WI

WARM AND HUMID CONDTIONS ALONG WITH SCATTERED SHOWERS AND THUNDERSTORMS
WILL CONTINUE DURING THE AFTERNOON ACROSS NORTHEAST WISCONSIN.

AS OF NOON...RADAR SHOWED SHOWERS AND THUNDERSTORMS SCATTERED ACROSS MUCH
OF THE FOX VALLEY.  THE STRONGSET STORMS WERE LOCATED IN WESTERN
MANITOWOC COUNTY...NEAR REEDSVILLE AND ST NAZIANZ...OR ABOUT 20 MILES WEST
OF THE CITY OF MANITOWOC.  THE STORMS WERE MOVING NORTHEAST AT ABOUT 15
MPH INTO SOUTHEAST BROWN COUNTY..NEAR DENMARK.  ANOTHER STRONG STORM WAS
LOCATED JUST OF THE NORTHEAST OF NEENAH..NEAR APPLETON.

DUE TO THE RELATIVELY SLOW MOVEMENT OF THE STORMS...ALONG WITH THW HIGH
MOISTURE CONTENT OF THE AIR...SOME OF THE STORMS MAY PRODUCED HEAVY
RAINS PRODUCING SOME LOCALIZED FLOODING.

PERSONS TRAVELING ACROSS THE AREA SHOULD BE ALERT FOR REDUCED VISIBILITY
IN AREA OF HEAVY RA2INFALL AND PONDING OF WATER ON AREA ROADS.    BRUSKY
Special weather statement, May 22, 12:08 PM CDT, 3 hours 47 minutes before
WIZ008-012-013-221745-

SPECIAL WEATHER STATEMENT AND SHORT RANGE WEATHER SUMMARY
NATIONAL WEATHER SERVICE GREEN BAY WI
12 PM CDT WED MAY 22 1991

WARM AND HUMID CONDTIONS ALONG WITH SCATTERED SHOWERS AND THUNDERSTORMS
WILL CONTINUE DURING THE AFTERNOON ACROSS NORTHEAST WISCONSIN.

AS OF NOON...RADAR SHOWED SHOWERS AND THUNDERSTORMS SCATTERED ACROSS MUCH
OF THE FOX VALLEY.  THE STRONGSET STORMS WERE LOCATED IN WESTERN
MANITOWOC COUNTY...NEAR REEDSVILLE AND ST NAZIANZ...OR ABOUT 20 MILES WEST
OF THE CITY OF MANITOWOC.  THE STORMS WERE MOVING NORTHEAST AT ABOUT 15
MPH INTO SOUTHEAST BROWN COUNTY..NEAR DENMARK.  ANOTHER STRONG STORM WAS
LOCATED JUST OF THE NORTHEAST OF NEENAH..NEAR APPLETON.

DUE TO THE RELATIVELY SLOW MOVEMENT OF THE STORMS...ALONG WITH THW HIGH
MOISTURE CONTENT OF THE AIR...SOME OF THE STORMS MAY PRODUCED HEAVY
RAINS PRODUCING SOME LOCALIZED FLOODING.
PERSONS TRAVELING ACROSS THE AREA SHOULD BE ALERT FOR REDUCED VI9SIBILITY
IN AREA OF HEAVY RAINFALL AND PONDING OF WATER ON AREA ROADS.    BRUSKY
Special weather statement, May 22, 12:12 PM CDT, 3 hours 43 minutes before
WIZ008-012-013-221745-

SPECIAL WEATHER STATEMENT AND SHORT RANGE WEATHER SUMMARY...CORRECTION...
NATIONAL WEATHER SERVICE GREEN BAY WI
12 PM CDT WED MAY 22 1991

WARM AND HUMID CONDTIONS ALONG WITH SCATTERED SHOWERS AND THUNDERSTORMS
WILL CONTINUE DURING THE AFTERNOON ACROSS NORTHEAST WISCONSIN.

AS OF NOON...RADAR SHOWED SHOWERS AND THUNDERSTORMS SCATTERED ACROSS MUCH
OF THE FOX VALLEY.  THE STRONGEST STORMS WERE LOCATED IN WESTERN
MANITOWOC COUNTY...NEAR REEDSVILLE AND ST NAZIANZ...OR ABOUT 20 MILES WEST
OF THE CITY OF MANITOWOC.  THE STORMS WERE MOVING NORTHEAST AT ABOUT 15
MPH INTO SOUTHEAST BROWN COUNTY..NEAR DENMARK.  ANOTHER STRONG STORM WAS
LOCATED JUST OF THE NORTHEAST OF NEENAH..NEAR APPLETON.

DUE TO THE RELATIVELY SLOW MOVEMENT OF THE STORMS...ALONG WITH THE HIGH
MOISTURE CONTENT OF THE AIR...SOME OF THE STORMS MAY PRODUCE HEAVY RAINS
CAUSING SOME LOCALIZED FLOODING.
PERSONS TRAVELING ACROSS THE AREA SHOULD BE ALERT FHOR REDUCED VISIBILITY
IN AREAS OF HEAVY RAINFALL AND PONDING OF WATER ON AREA ROADS.    BRUSKY
Special weather statement, May 22, 12:49 PM CDT, 3 hours 6 minutes before
WIZ008-012-013-221845-

SPECIAL WEATHER STATEMENT AND SHORT RANGE WEATHER SUMMARY
NATIONAL WEATHER SERVICE GREEN BAY WI
1245 PM CDT WED MAY 22 1991

SCATTERED SHOWERS AND THUNDERSTORMS CONTINUE TO MOVE ACROSS NORTHEAST
WISCONSIN EARLY THIS AFTERNOON.

AS OF 1245 PM..WEATHER RADAR SHOWED A BAND OF SHOWERS AND A FEW THUNDER-
STORMS ALONG THE LAKE MICHIGAN SHORELINE...FROM MARINETTE/MENOMINEE
SOUTHWARD THROUGH KEWAUNEE AND MANITOWOC COUNTIES.  THE STRONGEST
STORMS...PRODUCING THE HEAVIEST RAINFALL...WERE OVER SOUTHEAST BROWN
COUNTY...NEAR DENMARK AND INTO SOUTHERN KEWAUNEE COUNTY...ABOUT 10 MILES
SOUTWEST OF KEWAUNEE.  THE STORMS WERE MOVING NORTHEST AT AROUND 15 MPH.

OTHER SHOWERS AND STORMS WERE MORE WIDELY SCATTERED ACROSS MUCH OF
CENTRAL WISCONSIN...GENERALLY WEST OF A LINE FROM ABOUT SHAWANO TO OSHKOSH.
SOME OF THE STORMS WILL PRODUCE HEAVY RAINFALL AND DANGEROUS LIGHTNING
DURING THE AFTERNOON.
                                                 BRUSKY
Special weather statement, May 22, 3:11 PM CDT, 44 minutes before
WIZ005-008-009-012-013-222030-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREEN BAY WI
310 PM CDT WED MAY 22 1991

SCATTERED SHOWERS AND THUNDERSTORMS CONTINUE TO MOVE ACROSS THE AREA
THIS AFTERNOON...

AT 3PM WEATHER SERVICE RADAR SHOWED STRONG THUNDERSTORMS SCATTERED OVER
NORTHEAST AND EAST CENTRAL WISCONSIN. THESE STORMS WERE MOVING SLOWLY
NORTHEAST AT 15 MPH.

WITH THE SLOW MOVEMENT OF THESE STORMS VERY HEAVY DOWNPOURS OF RAIN CAN
B0E EXPECTED WHICH CAN CAUSE SOME LOCAL FLOODING PROBLEMS AND PONDING OF
WATER ON ROADWAYS.

ALSO DANGEROUS AND FREQUENT LIGHTNING CAN BE EXPECTED. SO AREA RESIDENTS
SHOULD USE COMMON SENSE AND TAKE PROPER PRECAUTIONS.
PLH

The office that day

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

IssuedProductOfficeCountiesLasted
May 22, 4:13 PM CDTTornado WarningGRBDane47 min

Nearby

Tornado Warnings in Wisconsin, 1991Every tornado warning in 1991Tornadoes in 1991

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.