Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1991

Severe Thunderstorm Warning 28, NWS Green Bay, WI

May 29, 1991Door County, Kewaunee County, Wisconsin

NWS Green Bay, WI issued this severe thunderstorm warning at May 29, 1991, 4:13 AM CDT for Door County, Kewaunee County, Wisconsin. It was in force for 62 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
May 29, 1991, 4:13 AM CDT (09:13 UTC)
Expired
May 29, 1991, 5:15 AM CDT
In force
62 min
Issued by
NWS Green Bay, WI
Area
Whole counties

Counties Door County, WI, Kewaunee County, WI

What was reported inside it

TimeReportWhereRemark
May 29, 5:15 AM CDTThunderstorm Wind 0Door, WI

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 00:00Z, 9.2 hours before the alert went out and 56 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 1991-05-29Temperature 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 00:00Z on 1991-05-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 179 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
NaN m above ground
0-6 km bulk shear
54 kt
0-1 km storm-relative helicity
179 m²/s²
0-3 km storm-relative helicity
381 m²/s²
Significant tornado parameter
0.0
Supercell composite
11.8

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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, May 29, 1:41 AM CDT, 2 hours 32 minutes before
WIZ005-290730

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREEN BAY WI
135 AM CDT WED MAY 29 1991

AT 130 AM CDT...WEATHER RADAR INDICATED THE LEADING EDGE OF A LINE
OF SEVERE THUNDERSTORMS EXTENDED FROM CENTRAL VILAS COUNTY...JUST
WEST OF CONOVER...SOUTHWEST TO NORTHWEST LINCOLN COUNTY. THE
STORMS WERE RACING EAST AT 45 TO 55 MPH.

WINDS IN THE 50 TO 60 MPH RANGE HAVE BEEN REPORTED WITH STORMS IN
THE LINE ALONG WITH 1 TO 2 INCH HAIL. ALSO...VERY HEAVY RAINFALL
WAS ACCOMPANYING THE STORMS AND LOCAL FLOODING MAY OCCUR ESPECIALLY
IN AREAS WHICH RECEIVED PREVIOUS HEAVY RAINFALL.

THE STORMS WILL LIKELY AFFECT THESE COUNTIES BETWEEN 230 AND 300 AM.
PEOPLE AREA ADVISED TO STAY TUNED FOR FURTHER DETAILS CONCERNING THESE
DANGEROUS STORMS.
MECIKALSKI
Special weather statement, May 29, 1:45 AM CDT, 2 hours 28 minutes before
WIZ005-290730

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREEN BAY WI
135 AM CDT WED MAY 29 1991

...STORNG THUNDERSTORMS APPROACHING FOREST...FLORENCE AND LANGLADE
   COUNTIES...
AT 130 AM CDT...WEATHER RADAR INDICATED THE LEADING EDGE OF A LINE
OF SEVERE THUNDERSTORMS EXTENDING FROM CENTRAL VILAS COUNTY...JUST
WEST OF CONOVER...SOUTHWEST TO NORTHWEST LINCOLN COUNTY. THE
STORMS WERE RACING EAST AT 45 TO 55 MPH.

WINDS IN THE 50 TO 60 MPH RANGE HAVE BEEN REPORTED WITH STORMS IN
THE LINE ALONG WITH 1 TO 2 INCH HAIL. ALSO...VERY HEAVY RAINFALL
WAS ACCOMPANYING THE STORMS AND LOCAL FLOODING MAY OCCUR ESPECIALLY
IN AREAS WHICH RECEIVED PREVIOUS HEAVY RAINFALL.

THE STORMS WILL LIKELY AFFECT FOREST...FLORENCE AND LANGLADE COUNTIES
BETWEEN 230 AND 300 AM. PEOPLE AREA ADVISED TO STAY TUNED FOR FURTHER
DETAILS CONCERNING THESE DANGEROUS STORMS.           MECIKALSKI
Special weather statement, May 29, 2:34 AM CDT, 1 hour 39 minutes before
WIZ005-290845

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREEN BAY WI
230 AM CDT WED MAY 29 1991

...STRONG THUNDERSTORMS APPROACHING SHAWANO AND MENOMINEE COUNTIES...

AT 230 AM CDT...WEATHER SERVICE RADAR SHOWED A LINE OF STRONG THUNDERSTORMS
JUST ENTERING WESTERN SHAWANO COUNTY.  THESE STORMS HAVE A HISTORY OF
DAMAGING WINDS...LARGE HAIL...AND VERY HEAVY RAINS.

THE LINE OF STORMS WAS MOVING TO THE EAST AT 35 TO 40 MILES AN HOUR...
AND WILL AFFECT THE CITY OF SHAWANO...AND ALSO THE CITY OF KESHENA IN
MENOMINEE COUNTY BY AROUND 330 AM.  PERSONS IN THE PATH OF THESE STORMS
SHOULD SEEK INDOOR SHELTER AND STAY AWAY FROM WINDOWS.

A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 315 AM FOR LANGLADE
COUNTY.  STAY TUNED TO YOUR NOAA WEATHER RADIO FOR FURTHER STATEMENTS OR
WARNINGS.
ISAACSON
Special weather statement, May 29, 3:06 AM CDT, 1 hour 7 minutes before
WIZ005-290945

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREEN BAY WI
305 AM CDT WED MAY 29 1991

...STRONG THUNDERSTORMS MOVING THROUGH FOREST COUNTY...

AT 300 AM CDT...WEATHER SERVICE RADAR SHOWED A LINE OF STRONG THUNDERSTORMS
IN FOREST COUNTY FROM 25 MILES NORTH OF CRANDON SOUTHWARD INTO LANGLADE
COUNTY.  THIS IS FROM 30 TO 60 MILES NORTHEAST OF WAUSAU.

THE STORMS WERE MOVING TO THE EAST AT 35 TO 40 MILES AN HOUR...AND WILL
MOVE THROUGH FOREST COUNTY...AND WILL ENTER FLORENCE AND NORTHERN OCONTO
COUNTIES BY AROUND 400 AM.  PERSONS IN THE PATH OF THESE STORMS
SHOULD SEEK INDOOR SHELTER AND STAY AWAY FROM WINDOWS.

FOREST COUNTY SHERIFFS REPORTED SMALL HAIL...STRONG WINDS...AN/D HEAVY RAINS
FROM THESE STORMS PASSING THROUGH CRANDON.  STAY TUNED TO YOUR NOAA WEATHER
RADIO FOR FURTHER STATEMENTS OR WARNINGS.
ISAACSON
Special weather statement, May 29, 3:10 AM CDT, 1 hour 3 minutes before
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Special weather statement, May 29, 3:28 AM CDT, 45 minutes before
WIZ005-008-290930-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREEN BAY WI
330 AM CDT WED MAY 29 1991

...STRONG THUNDERSTORMS MOVING INTO EASTERN OCONTO AND SOUTHERN
   MARINETTE COUNTIES...

AT 325 AM CDT...WEATHER SERVICE RADAR SHOWED A LINE OF STRONG THUNDER-
STORMS CONTINUING TO MOVE EAST AT 45 MPH INTO SOUTHERN MARINETTE AND
EASTERN OCONTO COUNTIES. THIS FROM GILLET TO 5 MILES WEST OF WAUSAUKEE
OR FROM 30 TO 60 MILES NORTHWEST AND NORTH OF GREEN BAY.

WIND GUSTS TO 50 MPH...HAIL AND PERIODS OF HEAVY RAIN WILL ACCOMPANY
THESE STORMS AS THEY MOVE THROUGH THESE COUNTIES BY 430 AM. SEEK INDOOR
SHELTER AND STAY AWAY FROM WINDOWS AS THESE STORMS APPROACH.

A TORNADO WATCH REMAINSO IN EFFECT FOR A LARGE PART OF NORTHEAST WISCONSIN
UNTIL 5AM CDT. STAY TUNED TO YOUR NOAA WEATHER RADIO FOR FURTHER STATEMENTS
MECIKALSKI

The office that day

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

IssuedProductOfficeCountiesLasted
May 29, 2:13 AM CDTSevere Thunderstorm WarningGRBLanglade62 min
May 29, 3:44 AM CDTTornado WarningGRBMarinette, Oconto61 min
May 29, 6:34 PM CDTSevere Thunderstorm WarningGRBJuneau56 min
May 29, 6:58 PM CDTSevere Thunderstorm WarningGRBFlorence, Forest, Marinette47 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 1991Every severe thunderstorm warning 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.