Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 82, NWS Milwaukee, WI

August 9, 1995Jefferson County, Wisconsin

NWS Milwaukee, WI issued this severe thunderstorm warning at Aug 9, 1995, 10:19 AM CDT for Jefferson County, Wisconsin. It was in force for 61 min.

The area

The counties it named.

The facts

Issued
Aug 9, 1995, 10:19 AM CDT (15:19 UTC)
Expired
Aug 9, 1995, 11:20 AM CDT
In force
61 min
Issued by
NWS Milwaukee, WI
Area
Whole counties

County Jefferson County, WI

The radar

The Milwaukee radar (KMKX), 19 km from the middle of the area, began a volume at 15:19 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 12:00Z, 3.3 hours before the alert went out and 171 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 1995-08-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 431 joules per kilogram.LCLLFCEL10008507005003002001001 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 1995-08-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 103 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
431 J/kg
Mixed-layer CIN
-23 J/kg
Mixed-layer LCL
520 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
103 m²/s²
0-3 km storm-relative helicity
196 m²/s²
Significant tornado parameter
0.2
Supercell composite
1.4

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMKE 091518 RRA
SVRMKE
WIC055-091620-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
1019 AM CDT WED AUG 9 1995

THE NATIONAL WEATHER SERVICE IN MILWAUKEE/SULLIVAN HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1120 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN SOUTHEAST WISCONSIN

   ...JEFFERSON COUNTY

 DOPPLER RADAR SHOWED A SEVERE THUNDERSTORM OVER CENTRAL JEFFERSON
COUNTY MOVING SOUTHEAST AT 35 MPH. A HAM RADIO REPORT HAD WINDS AT
LEAST 50 MPH JUST EAST OF THE CITY OF JEFFERSON AT 1015 AM. SOME
TOWNS IN THE PATH OF THIS SEVER STORM ARE SULLIVAN... PALMYRA.. AND
FORT ATKINSON.

THIS IS DANGEROUS STORM. STAY INDOORS AWAY FROM WINDOWS.

KAPELA
 

&

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, Aug 9, 5:27 AM CDT, 4 hours 52 minutes before
WIZALL-091300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
527 AM CDT WED AUG 9 1995

...SEVERE WEATHER WATCH 931 CANCELLED...

SEVERE THUNDERSTORM WATCH NUMBER 931 FOR PORTIONS OF NORTHERN AND
CENTRAL WISCONSIN HAS BEEN CANCELLED. THE THREAT OF SEVERE THUNDERSTORMS
HAS DIMINISHED IN THAT AREA. HOWEVER...THUNDERSTORMS ARE FORECAST
FOR MUCH OF WISCONSIN TODAY...AND THERE IS A THREAT OF SEVERE
THUNDERSTORMS WITH LARGE HAIL...DAMAGING WINDS AND LOCALLY HEAVY
RAINS ESPECIALLY FOR SOUTHERN AND EASTERN WISCONSIN.

ZAJDEL
Special weather statement, Aug 9, 5:29 AM CDT, 4 hours 50 minutes before
WIZALL-091300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
527 AM CDT WED AUG 9 1995

...SEVERE WEATHER WATCH 931 CANCELLED...

SEVERE THUNDERSTORM WATCH NUMBER 931 FOR PORTIONS OF NORTHERN AND
CENTRAL WISCONSIN HAS BEEN CANCELLED. THE THREAT OF SEVERE THUNDERSTORMS
HAS DIMINISHED IN THAT AREA. HOWEVER...THUNDERSTORMS ARE FORECAST
FOR MUCH OF WISCONSIN TODAY...AND THERE IS A THREAT OF SEVERE
THUNDERSTORMS WITH LARGE HAIL...DAMAGING WINDS AND LOCALLY HEAVY
RAINS ESPECIALLY FOR SOUTHERN AND EASTERN WISCONSIN.

ZAJDEL

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 9, 5:44 AM CDTSevere Thunderstorm WarningMKXGreen Lake61 min
Aug 9, 6:07 AM CDTTornado WarningMKXFond du Lac, Green Lake38 min
Aug 9, 7:09 AM CDTTornado WarningMKXFond du Lac, Sheboygan, Washington36 min
Aug 9, 7:37 AM CDTSevere Thunderstorm WarningMKXDodge, Jefferson, Waukesha68 min
Aug 9, 8:12 AM CDTSevere Thunderstorm WarningMKXDane, Rock, Walworth48 min
Aug 9, 10:31 AM CDTSevere Thunderstorm WarningMKXRock, Walworth64 min
Aug 9, 11:15 AM CDTSevere Thunderstorm WarningMKXJefferson60 min
Aug 9, 11:16 AM CDTTornado WarningMKXKenosha, Racine, Walworth47 min
Aug 9, 11:54 AM CDTSevere Thunderstorm WarningMKXDodge61 min
Aug 9, 12:15 PM CDTSevere Thunderstorm WarningMKXRacine, Walworth, Waukesha45 min
Aug 9, 12:53 PM CDTSevere Thunderstorm WarningMKXKenosha, Racine, Walworth52 min
Aug 9, 12:58 PM CDTSevere Thunderstorm WarningMKXJefferson42 min
Aug 9, 12:58 PM CDTSevere Thunderstorm WarningMKXDodge62 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 1995Every severe thunderstorm warning in 1995

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; radar from the NEXRAD Level II archive.