Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 20, NWS Milwaukee, WI

June 17, 1996Rock County, Wisconsin

NWS Milwaukee, WI issued this severe thunderstorm warning at Jun 17, 1996, 1:21 AM CDT for Rock County, Wisconsin. It was in force for 39 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jun 17, 1996, 1:21 AM CDT (06:21 UTC)
Expired
Jun 17, 1996, 2:00 AM CDT
In force
39 min
Issued by
NWS Milwaukee, WI
Area
Whole counties

County Rock County, WI

The radar

The Milwaukee radar (KMKX), 54 km from the middle of the area, began a volume at 06:22 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

Davenport, (KDVN), launched 00:00Z, 6.4 hours before the alert went out and 166 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, Davenport, at 00:00Z on 1996-06-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 955 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, Davenport, at 00:00Z on 1996-06-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 59 square meters per square second.1939Sfc1 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
955 J/kg
Mixed-layer CIN
-23 J/kg
Mixed-layer LCL
1288 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
59 m²/s²
0-3 km storm-relative helicity
114 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMKE 170623
SVRMKE
WIC105-170700-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
121 AM CDT MON JUN 17 1996
 
THE NATIONAL WEATHER SERVICE IN MILWAUKEE/SULLIVAN HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  200 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTH WISCONSIN
 
   ...ROCK COUNTY
 
AT 120 AM... DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM NEAR
EVANSVILLE... 20 MILES SOUTH OF MADISON.
 
THE STORM WAS MOVING NORTHEAST AT 20 MILES AN HOUR AND WILL AFFECT THE
TOWNS OF EDGERTON... MILTON.. AND LEYDAN BY 2 AM.  EXPECT TORRENTIAL
DOWNPORS AND WIND GUSTS IN EXCESS OF 60 MPH.
 
THIS IS A DANGEROUS STORM!  STAY INDOORS AWAY FROM WINDOWS!
 
MEADE/DAVIS

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 16, 11:56 PM CDT, 1 hour 25 minutes before
WIZ041>072-171000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
1155 PM CDT SUN JUN 16 1996

THE TORNADO WATCH FOR THE SOUTHERN HALF OF WISCONSIN HAS BEEN
CANCELED.  SHOWERS AND THUNDERSTORMS WILL CONTINUE TO AFFECT
WISCONSIN WITH AREAS OF HEAVY RAIN TONIGHT...BUT THE THREAT
OF SEVERE WEATHER HAS ENDED.

GARCIA

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 16, 9:43 PM CDTSevere Thunderstorm WarningMKXSauk62 min
Jun 17, 3:00 AM CDTFlash Flood WarningMKXColumbia, Dane, Sauk3 hr
Jun 17, 3:00 AM CDTFlash Flood WarningMKXGreen, Rock3 hr
Jun 17, 3:00 AM CDTFlash Flood WarningMKXIowa, Lafayette3 hr
Jun 17, 2:22 PM CDTFlash Flood WarningMKXSauk2 hr
Jun 17, 2:22 PM CDTSevere Thunderstorm WarningMKXSauk2 hr
Jun 17, 2:46 PM CDTTornado WarningMKXSauk29 min
Jun 17, 2:55 PM CDTTornado WarningMKXColumbia50 min
Jun 17, 4:07 PM CDTFlash Flood WarningMKXColumbia2 hr
Jun 17, 4:46 PM CDTFlash Flood WarningMKXSauk119 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 1996Every severe thunderstorm warning in 1996

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.