Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1999

Severe Thunderstorm Warning 41, NWS Milwaukee, WI

June 6, 1999Dodge County, Wisconsin

NWS Milwaukee, WI issued this severe thunderstorm warning at Jun 6, 1999, 4:51 PM CDT for Dodge County, Wisconsin. It was in force for 24 min. 2 reports 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
Jun 6, 1999, 4:51 PM CDT (21:51 UTC)
Expired
Jun 6, 1999, 5:15 PM CDT
In force
24 min
Issued by
NWS Milwaukee, WI
Area
Whole counties

County Dodge County, WI

What was reported inside it

TimeReportWhereRemark
Jun 6, 4:54 PM CDTThunderstorm WindHustisford, WI
Jun 6, 5:14 PM CDTThunderstorm WindJuneau, 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.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jun 6, 2:30 PM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 12:00Z, 9.9 hours before the alert went out and 128 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 1999-06-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1488 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 1999-06-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 206 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
1488 J/kg
Mixed-layer CIN
-58 J/kg
Mixed-layer LCL
803 m above ground
0-6 km bulk shear
49 kt
0-1 km storm-relative helicity
206 m²/s²
0-3 km storm-relative helicity
240 m²/s²
Significant tornado parameter
0.0
Supercell composite
4.9

Open this sounding in Storm Lab

The text

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

528 
WUUS1 KMKE 062152 RRA
SVRMKE
WIC027-062215-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
451 PM CDT SUN JUN 6 1999

THE NATIONAL WEATHER SERVICE IN SULLIVAN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EASTERN DODGE COUNTY IN SOUTHEASTERN WISCONSIN

* UNTIL 515 PM CDT

* AT 451 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 2 MILES SOUTHEAST OF MAYVILLE...MOVING
  NORTHEAST AT 30 MPH.

HAIL UP TO 3/4 OF AN INCH IN DIAMETER AND WINDS GREATER THAN 55 MILES
AN HOUR ARE EXPECTED FROM THIS STORM. IF YOU ARE IN THE STORMS
PATH...SEEK SHELTER INDOORS.

HENZT/CROSBIE

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, Jun 6, 11:35 AM CDT, 5 hours 16 minutes before
WIZ046-047-051-052-056>060-062>072-062100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
1135 AM CDT SUN JUN 6 1999

...HAZARDOUS WEATHER OUTLOOK...
...FOR SOUTH CENTRAL AND SOUTHEASTERN WISCONSIN...

THREAT...
A SLIGHT TO MODERATE RISK OF SEVERE THUNDERSTORMS...THIS AFTERNOON
INTO TONIGHT. LARGE HAIL UP TO GOLF BALL SIZE...AND DAMAGING
WINDS OF 60 TO 80 MPH.

DISCUSSION...A VERY WARM AND UNSTABLE AIRMASS IS IN PLACE
OVER WISCONSIN THIS AFTERNOON. A COLD FRONT IS APPROACHING THE
REGION FROM THE PLAINS. IN ADDITION...A BAND OF STRONG UPPER AIR
WINDS...WILL PUSH INTO THE STATE LATER THIS AFTERNOON AND TONIGHT.
THE COMBINATION OF THE VERY UNSTABLE AIRMASS...AND FAVORABLE UPPER
WINDS...WILL MEAN ANY THUNDERSTORMS THAT DEVELOP...COULD BE SEVERE.
THE THREAT OF SEVERE WEATHER SHOULD CONTINUE INTO TONIGHT.

SPOTTER ACTIVATION...
STORM SPOTTER GROUPS WILL LIKELY NEED TO BE ACTIVATED LATER THIS
AFTERNOON INTO TONIGHT.
Local storm report, Jun 6, 4:19 PM CDT, 32 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
419 PM CDT SUN JUN 06 1999

TIME(CDT)  .....CITY LOCATION..... STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0225 PM    MENDOTA                   WI    1 INCH HAIL
06/06/99   DANE

0345 PM    MONROE MUNI ARPT          WI    70 MPH TSTM GUST
06/06/99   GREEN

0348 PM    HANOVER                   WI    WIND DAMAGE
06/06/99   ROCK

0356 PM    EVANSVILLE                WI    60 MPH TSTM GUST
06/06/99   ROCK
Local storm report, Jun 6, 4:19 PM CDT, 32 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
419 PM CDT SUN JUN 06 1999

TIME(CDT)  .....CITY LOCATION..... STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0225 PM    MENDOTA                   WI    1 INCH HAIL
06/06/99   DANE

0345 PM    MONROE MUNI ARPT          WI    70 MPH TSTM GUST
06/06/99   GREEN

0348 PM    HANOVER                   WI    WIND DAMAGE
06/06/99   ROCK

0356 PM    EVANSVILLE                WI    60 MPH TSTM GUST
06/06/99   ROCK
Local storm report, Jun 6, 4:51 PM CDT, 0 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
451 PM CDT SUN JUN 06 1999

TIME(CDT)  .....CITY LOCATION..... STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0400 PM    LAKE DELTON               WI    WIND DAMAGE
06/06/99   SAUK                            TREES DOWN. BUILDINGS
                                           DAMAGED.

0400 PM    MILTON                    WI    WIND DAMAGE
06/06/99   ROCK                            TREE DAMAGE

0401 PM    1 N EVANSVILLE            WI    75 MPH TSTM GUST
06/06/99   ROCK

0408 PM    10 N EDGERTON             WI    1.75 INCH HAIL
06/06/99   DANE                            POSSIBLE TORNADO
Local storm report, Jun 6, 4:51 PM CDT, 0 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
451 PM CDT SUN JUN 06 1999

TIME(CDT)  .....CITY LOCATION..... STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0400 PM    LAKE DELTON               WI    WIND DAMAGE
06/06/99   SAUK                            TREES DOWN. BUILDINGS
                                           DAMAGED.

0400 PM    MILTON                    WI    WIND DAMAGE
06/06/99   ROCK                            TREE DAMAGE

0401 PM    1 N EVANSVILLE            WI    75 MPH TSTM GUST
06/06/99   ROCK

0408 PM    10 N EDGERTON             WI    1.75 INCH HAIL
06/06/99   DANE                            POSSIBLE TORNADO

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 6, 3:17 PM CDTSevere Thunderstorm WarningMKXDane, Green, Rock58 min
Jun 6, 3:19 PM CDTSevere Thunderstorm WarningMKXColumbia56 min
Jun 6, 3:36 PM CDTTornado WarningMKXGreen, Rock54 min
Jun 6, 3:51 PM CDTSevere Thunderstorm WarningMKXDodge54 min
Jun 6, 3:59 PM CDTSevere Thunderstorm WarningMKXJefferson61 min
Jun 6, 4:06 PM CDTSevere Thunderstorm WarningMKXWalworth54 min
Jun 6, 4:09 PM CDTSevere Thunderstorm WarningMKXColumbia, Marquette66 min
Jun 6, 4:09 PM CDTSevere Thunderstorm WarningMKXSauk66 min
Jun 6, 4:12 PM CDTTornado WarningMKXWalworth63 min
Jun 6, 4:16 PM CDTTornado WarningMKXDane, Jefferson59 min
Jun 6, 4:19 PM CDTSevere Thunderstorm WarningMKXFond du Lac56 min
Jun 6, 4:28 PM CDTTornado WarningMKXJefferson32 min
Jun 6, 4:30 PM CDTSevere Thunderstorm WarningMKXWaukesha60 min
Jun 6, 4:35 PM CDTSevere Thunderstorm WarningMKXGreen Lake55 min
Jun 6, 4:39 PM CDTTornado WarningMKXWaukesha66 min
Jun 6, 4:42 PM CDTSevere Thunderstorm WarningMKXWashington63 min
Jun 6, 4:43 PM CDTSevere Thunderstorm WarningMKXMilwaukee, Racine62 min
Jun 6, 4:43 PM CDTSevere Thunderstorm WarningMKXKenosha62 min
Jun 6, 4:45 PM CDTSevere Thunderstorm WarningMKXOzaukee, Sheboygan75 min
Jun 6, 5:10 PM CDTTornado WarningMKXOzaukee35 min
Jun 6, 6:51 PM CDTSevere Thunderstorm WarningMKXKenosha, Racine54 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 1999Every severe thunderstorm warning in 1999

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.