Alert archive / Wisconsin / Tornado Warnings in 1991

Tornado Warning 2, NWS Green Bay, WI

March 27, 1991Brown County, Outagamie County, Wisconsin

NWS Green Bay, WI issued this tornado warning at Mar 27, 1991, 2:30 PM CST for Brown County, Outagamie County, Wisconsin. It was in force for 30 min.

The area

The counties it named.

The facts

Issued
Mar 27, 1991, 2:30 PM CST (20:30 UTC)
Expired
Mar 27, 1991, 3:00 PM CST
In force
30 min
Issued by
NWS Green Bay, WI
Area
Whole counties

Counties Brown County, WI, Outagamie County, WI

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 12:00Z, 8.5 hours before the alert went out and 11 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 1991-03-27Temperature 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 1991-03-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 59 square meters per square second.1939587897Sfc1 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
1516 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
59 m²/s²
0-3 km storm-relative helicity
-11 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 KGRB 272030
TORGRB
WIC009-087-272100-

BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED 
TORNADO WARNING 
NATIONAL WEATHER SERVICE GREEN BAY WI
230 PM CST WED MAR 27 1991

THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING 
EFFECTIVE UNTIL 300 PM CST FOR PEOPLE IN THE FOLLOWING 
COUNTIES

   IN THE NORTHEAST PART OF WISCONSIN
      BROWN...OUTAGAMIE

APPLETON POLICE REPORTED TWO CONFIRMED FUNNEL CLOUDS SIGHTED IN
THE CITY OF APPLETON WI AT 220 PM CST. 1 INCH HAIL HAS ALSO BEEN
REPORTED IN THE APPLETON AREA. THESE STORMS ARE MOVING NORTHEAST AT
40 TO 50 MPH AND WILL MOVE INTO NORTH INTO BROWN COUNTY BY 3 PM.

IF YOU ARE IN THE PATH OF A TORNADO...THE SAFEST PLACE TO BE IS IN
A BASEMENT.  GET UNDER A WORKBENCH OR PIECE OF STURDY FURNITURE.
IF NO BASEMENT IS AVAILABLE...FIND SHELTER IN AN INTERIOR ROOM
SUCH AS A CLOSET ON THE LOWEST FLOOR.  USE BLANKETS...PILLOWS...
OR CUSHIONS TO PROTECT YOUR BODY FROM FLYING DEBRIS. AVOID WINDOWS.

WWI

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, Mar 27, 1:31 PM CST, 59 minutes before
WIZ-005-008-009-012-013-272000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREEN BAY WI
125 PM CST WED MAR 27 1991

...STRONG THUNDERSTORMS OVER EAST-CENTRAL AND NORTHEAST WISCONSIN...
...A TORNADO WATCH REMAINS IN EFFECT FOR A LARGE PART OF NORTHEAST
   AND EAST-CENTRAL WISCONSIN UNTIL 8 PM...
AT 115 PM...NATIONAL WEATHER SERVICE RADAR INDICATED A CLUSTER OF
STRONG THUNDERSTORMS OVER EAST CENTRAL EXTENDING INTO NORTHEASTERN
WISCONSIN. THE STRONGEST THUNDERSTORMS WERE LOCATED OVER SOUTHEAST
WAUSHARA...NORTHERN MARQUETTE AND INTO NORTHERN GREEN LAKE COUNTY.
ANOTHER AREA WAS LOCATED OVER WESTERN PORTAGE AND EASTERN WAUPACA
COUNTIES. THE THUNDERSTORMS WERE MOVING NORTHEAST AT 40 TO 50 MPH
AND WILL BE MOVING THROUGH WINNEBAGO...OUTAGAMIE AND CALUMET
COUNTIES BETWEEN 130 AND 2 PM. THE OTHER AREA WILL MOVE THROUGH
WAUPACA COUNTY BY 2 PM. HAIL...HEAVY RAINS AND STRONG GUSTY WINDS
WILL ACCOMPANY SOME OF THESE STORMS. REMEMBER...THE EN.TIRE AREA
REMAINS UNDER A TORNADO WATCH UNTIL 8PM.     MECIKALSKI

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 26, 11:05 PM CSTSevere Thunderstorm WarningGRBDane40 min
Mar 27, 1:07 PM CSTSevere Thunderstorm WarningGRBDane, Green, Iowa38 min
Mar 27, 1:25 PM CSTSevere Thunderstorm WarningGRBWaushara35 min
Mar 27, 1:41 PM CSTSevere Thunderstorm WarningGRBDane49 min
Mar 27, 1:47 PM CSTSevere Thunderstorm WarningGRBRock43 min
Mar 27, 2:04 PM CSTTornado WarningGRBDane, Rock41 min
Mar 27, 2:16 PM CSTSevere Thunderstorm WarningGRBBrown, Outagamie44 min
Mar 27, 2:58 PM CSTSevere Thunderstorm WarningGRBManitowoc47 min
Mar 27, 2:58 PM CSTSevere Thunderstorm WarningGRBCalumet22 min
Mar 27, 3:08 PM CSTSevere Thunderstorm WarningGRBGreen Lake, Marquette, Waushara37 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.