Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1991

Severe Thunderstorm Warning 36, NWS Milwaukee, WI

July 7, 1991Sheboygan County, Wisconsin

NWS Milwaukee, WI issued this severe thunderstorm warning at Jul 7, 1991, 4:09 PM CDT for Sheboygan County, Wisconsin. It was in force for 51 min.

The area

The counties it named.

The facts

Issued
Jul 7, 1991, 4:09 PM CDT (21:09 UTC)
Expired
Jul 7, 1991, 5:00 PM CDT
In force
51 min
Issued by
NWS Milwaukee, WI
Area
Whole counties

County Sheboygan County, WI

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 12:00Z, 9.2 hours before the alert went out and 84 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 1991-07-07Temperature 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 1991-07-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -67 square meters per square second.19395878Sfc1 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
1805 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
-67 m²/s²
0-3 km storm-relative helicity
75 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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, Jul 7, 10:22 AM CDT, 5 hours 47 minutes before
WIZ010>020-071800-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
1015 AM CDT SUN JUL 7 1991

...SEVERE WEATHER OUTLOOK FOR WISCONSIN...

THUNDERSTORMS ARE FORECAST FOR ALL OF WISCONSIN THIS AFTERNOON AND
EARLY TONIGHT. SEVERE THUNDERSTORMS WITH LARGE HAIL...STRONG WINDS
AND HEAVY RAINS WILL BE POSSIBLE MAINLY OVER SOUTHERN PORTIONS OF
WISCONSIN BEGINNING THIS AFTERNOON AND CONTINUING INTO EARLY TONIGHT.

THIS IS A PRELIMINARY ADVISORY...PLEASE LISTEN FOR LATER STATEMENTS
AND FORECASTS.
TZ
Special weather statement, Jul 7, 1:24 PM CDT, 2 hours 45 minutes before
WIZ010-011-014-015-018-019-080100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MADISON WI
125PM CDT SUN JUL 7 1991

...SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 800PM CDT...

A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR ALL OF SOUTH..CENTRAL
WISCONSIN.  IT INCLUDES THE FOLLOWING COUNTIES...ADAMS...WAUSHARA...
GREEN LAKE...JUNEAU...MARQUETTE...COLUMBIA...DANE...SAUK...RICHLAND...
IOWA...GREEN...AND ROCK.

THIS INCLUDES THE FOLLOWING CITIES...DODGEVILLE...RICHLAND CENTER...
BARABOO...MAUSTON...ADAMS...MONTELLO...WAUTOMA...MARKESAN...WISCONSIN
DELLS...PORTAGE...MADISON...MONROE...AND JANESVILLE.

SOME OF THE STORMS APPROACHING IN THIS SYSTEM HAVE HAD DAMAGING GUSTY
WINDS...HAIL AND HEAVY RAINS.

IF SEVERE APPROACHES YOU SEEK IMMEDIATE SHELTER.
STIMACH
Special weather statement, Jul 7, 1:35 PM CDT, 2 hours 34 minutes before
WIZ012-013-016-017-019-020-072000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
135 PM CDT SUN JUL 7 1991

...SEVERE THUNDERSTORM WATCH IN EFFECT FOR SOUTHEAST WISCONSIN UNTIL
800 PM...

SHOWERS AND THUNDERSTORMS HAVE MOVED INTO THE LACROSSE AREA...AND ARE
MOVING EAST AT 40 MILES AN HOUR.  AT 130 PM...NATIONAL WEATHER SERVICE
RADAR INDICATED THE STRONGEST THUNDERSTORM NEAR LACROSSE.  OTHER
THUNDERSTORMS WERE DEVELOPING RAPIDLY OVER NORTHEAST IOWA.

CONDITIONS ARE FAVORABLE FOR SEVERE THUNDERSTORMS PRODUCING WIND GUSTS
IN EXCESS OF 60 MILES AN HOUR...HAIL AND HEAVY RAIN OVER ALL OF SOUTHERN
WISCONSIN THIS AFTERNOON.  THUNDERSTORMS ARE EXPECTED TO MOVE INTO
SOUTH.EAST WISCONSIN AFTER 300 PM.

STAY TUNED TO THE LATEST WEATHER INFORMATION BY LISTENING TO NATIONAL
WEATHER SERVICE RADIO OR COMMERCIAL RADIO OR TELEVISION FOR LATER
STATEMENTS AND POSSIBLE WARNINGS.

J LAST
Special weather statement, Jul 7, 2:13 PM CDT, 1 hour 56 minutes before
WIZ012-013-016-017-019-020-072030-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
215 PM CDT SUN JUL 7 1991

...SEVERE THUNDERSTORM WATCH IN EFFECT FOR SOUTHEAST WISCONSIN UNTIL
800 PM...

THUNDERSTORMS CONTINUE TO RAPIDLY DEVELOP OVER SOUTHWEST AND SOUTH-CENTRAL
WISCONSIN.  AT 210 PM...NATIONAL WEATHER SERVICE RADAR INDICATED SEVERE
THUNDERSTORMS ABOUT 30 MILES WEST OF MADISON.  THE STORMS ARE MOVING
EAST AT 40 MILES AN HOUR.

CONDITIONS ARE FAVORABLE FOR SEVERE THUNDERSTORMS PRODUCING WIND GUSTS
IN EXCESS OF 60 MILES AN HOUR...HAIL AND HEAVY RAIN OVER ALL OF SOUTHERN
WISCONSIN THIS AFTERNOON.  THUNDERSTORMS ARE EXPECTED TO MOVE INTO
DODGE...JEFFERSON AND DODGE COUNTIES BETWEEN 300 AND 400 PM...AND INTO
THE MILWAUKEE AREA BETWEEN ABOUT 400 AND 500 PM.

STAY TUNED TO NATIONAL WEATHER SERVICE RADIO...OR COMMERCIAL RADIO
OR TELEVISION FOR THE LATEST INFORMATION ON THE DANGEROUS WEATHER
SITUATION.

J LASTT
Special weather statement, Jul 7, 2:20 PM CDT, 1 hour 49 minutes before
WIZ012-013-016-017-019-020-072030-

SPECIAL WEATHER STATEMENT...CORRECTION...
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
215 PM CDT SUN JUL 7 1991

...SEVERE THUNDERSTORM WATCH IN EFFECT FOR SOUTHEAST WISCONSIN UNTIL
800 PM...

THUNDERSTORMS CONTINUE TO RAPIDLY DEVELOP OVER SOUTHWEST AND SOUTH-CENTRAL
WISCONSIN.  AT 210 PM...NATIONAL WEATHER SERVICE RADAR INDICATED SEVERE
THUNDERSTORMS ABOUT 30 MILES WEST OF MADISON.  THE STORMS ARE MOVING
EAST AT 40 MILES AN HOUR.

CONDITIONS ARE FAVORABLE FOR SEVERE THUNDERSTORMS PRODUCING WIND GUSTS
IN EXCESS OF 60 MILES AN HOUR...HAIL AND HEAVY RAIN OVER ALL OF SOUTHERN
WISCONSIN THIS AFTERNOON.  THUNDERSTORMS ARE EXPECTED TO MOVE INTO
DODGE...JEFFERSON AND WALWORTH COUNTIES BETWEEN 300 AND 400 PM...AND INTO
THE MILWAUKEE AREA BETWEEN ABOUT 400 AND 500 PM.

STAY TUNED TO NATIONAL WEATHER SERVICE RADIO...OR COMMERCIAL RADIO
OR TELEVISION FOR THE LATEST INFORMATION ON THE DANGEROUS WEATHERZ
SITUATION.

J LAST
Special weather statement, Jul 7, 2:46 PM CDT, 1 hour 23 minutes before
WIZ010-072030-

WISCONSIN AREAL OUTLINE FOR SEVERE THUNDERSTORM WATCH 6523
NATIONAL WEATHER SERVICE MILWAUKEE WI
245 PM CDT SUN JUL 7 1991

...SEVERE THUNDERSTORM WATCH CANCELLED FOR WEST/CENTRAL WISCONSIN...

THE SEVERE THUNDERSTORM WATCH THAT HAD BEEN IN EFFECT FOR A SMALL
PORTION OF WEST/CENTRAL WISCONSIN UNTIL 4 PM THIS AFTERNOON HAS NOW
BEEN CANCELLED.  THIS WATCH INCLUDED THE COUNTIES OF BUFFALO...
LA CROSSE AND TREMPEALEAU OF WEST/CENTRAL WISCONSIN.

THE SEVERE WEATHER THREAT HAS MOVED EAST OF THESE COUNTIES...BUT
SCATTERED THUNDERSTORMS WILL CONTINUE THROUGH THE AFTERNOON.

A SEVERE THUNDERSTORM WATCH CONTINUES IN EFFECT FOR MONROE...JACKSON
AND VERNON COUNTIES OF WEST/CENTRAL WISCONSIN UNTIL 8 PM.

KAVINSKY

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 7, 4:20 AM CDTSevere Thunderstorm WarningMKXMarathon40 min
Jul 7, 3:00 PM CDTTornado WarningMKXDodge, Jefferson60 min
Jul 7, 3:38 PM CDTSevere Thunderstorm WarningMKXOzaukee52 min
Jul 7, 3:38 PM CDTSevere Thunderstorm WarningMKXMilwaukee, Washington, Waukesha47 min
Jul 7, 3:45 PM CDTSevere Thunderstorm WarningMKXRacine40 min
Jul 7, 3:46 PM CDTTornado WarningMKXWalworth29 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; the sounding from the Mesonet's radiosonde archive.