Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 67, NWS Milwaukee, WI

August 5, 1996Ozaukee County, Waukesha County, Wisconsin

NWS Milwaukee, WI issued this severe thunderstorm warning at Aug 5, 1996, 8:15 PM CDT for Ozaukee County, Waukesha County, Wisconsin. It was in force for 60 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
Aug 5, 1996, 8:15 PM CDT (01:15 UTC)
Expired
Aug 5, 1996, 9:15 PM CDT
In force
60 min
Issued by
NWS Milwaukee, WI
Area
Whole counties

Counties Ozaukee County, WI, Waukesha County, WI

The radar

The Milwaukee radar (KMKX), 46 km from the middle of the area, began a volume at 01:32 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.

What was reported inside it

TimeReportWhereRemark
Aug 5, 8:27 PM CDTThunderstorm WindOconomowoc, 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 nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 00:00Z, 1.3 hours before the alert went out and 141 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 1996-08-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1099 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 00:00Z on 1996-08-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 106 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
1099 J/kg
Mixed-layer CIN
-54 J/kg
Mixed-layer LCL
1099 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
106 m²/s²
0-3 km storm-relative helicity
121 m²/s²
Significant tornado parameter
0.4
Supercell composite
4.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMKE 060115
SVRMKE
WIC089-133-060215-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
815 PM CDT MON AUG 5 1996
 
THE NATIONAL WEATHER SERVICE IN MILWAUKEE/SULLIVAN HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  915 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTHEAST WISCONSIN
 
   ...OZAUKEE COUNTY...WAUKESHA COUNTY
 
AT 815 PM... A LINE OF SEVERE THUNDERSTORMS EXTENDED FROM NEAR
SHEBOYGAN... SOUTHWEST TO NEAR JANESVILLE.
 
THE LINE OF STORMS WAS MOVING EAST AT 20 MPH AND HAS A HISTORY OF
DAMAGING WINDS... TORRENTIAL RAIN... AND DANGEROUS LIGHTNING.
 
THE STORMS WILL AFFECT MUCH OF OZAUKEE AND WAUKESHA COUNTIES TpHROUGH
915 PM.
 
GO INSIDE A STURDY BUILDING AND STAY AWAY FROM WINDOWS!
 
HENTZ/MEADE

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 5, 5:42 PM CDT, 2 hours 33 minutes before
WIZ026-028-029-032>034-041>044-046-047-051-053>072-072200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
540 PM CDT MON AUG 5 1996

...INDICIES NEARING HEAT ADVISORY LEVELS ON TUESDAY...

HEAT INDICIES IN THE 98 TO 104 DEGREE RANGE ARE FORECAST FOR PORTIONS
OF WEST CENTRAL AND MUCH OF SOUTHERN WISCONSIN ON TUESDAY.  THE AREA IS
ROUGHLY SOUTH OF A LINE FROM MINNEAPOLIS TO EAU CLAIRE TO FOND DU LAC TO
JUST SOUTH OF SHEBOYGAN.  A FEW OF THE CITIES THAT WILL EXPERIENCE THE
HEAT AND HUMIDITY INCLUDE MILWAUKEE...MADISON...LACROSSE AND EAU CLAIRE.

ALTHOUGH HEAT INDICIES IN THE 98 TO 104 DEGREE RANGE ARE BELOW THE
CRITERIA FOR HEAT ADVISORIES...THEY ARE STILL HIGH ENOUGH TO PRODUCE
HEAT EXHAUSTION AND HEAT STROKE.  PERSONS MOST LIKELY TO BE AFFECTED BY
THE HEAT AND HUMIDITY ARE THE ELDERLY...INFANTS...AND CHILDREN UP TO
4 YEARS OF AGE.  PERSONS ON CERTAIN MEDICATIONS THAT LOWER BLOOD
PRESSURE ARE ALSO AT RISK AND PEOPLE WHO LIVE IN INNER CITY HOUSING
WITHOUT AIR CONDITIONING.

PERSONS ATTENDING OUTDOOR ACTIVITIES LIKE THE WISCONSIN STATE FAIR
SHOULD BE AWARE THAT PROLONGED EXPOSURE TO DIRECT SUNSHINE CAN ALSO
PRODUCE SUN STROKE WITH HOT AND STAGNANT CONDITIONS.

ADVANCE PRECAUTIONS SHOULD BE TAKEN BY PERSONS WHO WILL HAVE
DIFFICULTY COPING WITH THE EXPECTED HEAT AND HUMIDITY.  CONDITIONS
ARE NOT EXPECTED TO CHANGE MUCH DURING THE NEXT FEW DAYS.

GARCIA
Special weather statement, Aug 5, 6:36 PM CDT, 1 hour 39 minutes before
WIZ005-010-017-018-029-034-041-060200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
635 PM CDT MON AUG 5 1996

THE SEVERE THUNDERSTORM WATCH PREVIOUSLY IN EFFECT HAS BEEN CANCELLED
FOR PORTIONS OF NORTH CENTRAL AND WESTERN WISCONSIN.  THE THREAT OF
SEVERE WEATHER HAS ENDED WEST OF A LINE FROM FOREST COUNTY SOUTHWEST
TO VERNON COUNTY.

GARCIA
Special weather statement, Aug 5, 7:04 PM CDT, 1 hour 11 minutes before
WIZ011-012-019-030-035-036-041-042-043-053-054-055-060200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
700 PM CDT MON AUG 5 1996

THE SEVERE THUNDERSTORM WATCH PREVIOUSLY IN ElFFECT HAS BEEN CANCELLED
FOR PORTIONS OF NORTH CENTRAL...CENTRAL AND WEST CENTRAL WISCONSIN.
THE THREAT OF SEVERE WEATHER HAS ENDED WEST OF A LINE FROM MARINETTE
COUNTY TO SAUK COUNTY.

GARCIA

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 5, 7:02 PM CDTSevere Thunderstorm WarningMKXDodge, Fond du Lac58 min
Aug 5, 7:14 PM CDTSevere Thunderstorm WarningMKXDane, Green61 min
Aug 5, 7:14 PM CDTSevere Thunderstorm WarningMKXColumbia61 min
Aug 5, 7:21 PM CDTSevere Thunderstorm WarningMKXJefferson69 min
Aug 5, 7:21 PM CDTSevere Thunderstorm WarningMKXSheboygan69 min
Aug 5, 7:42 PM CDTSevere Thunderstorm WarningMKXSheboygan, Washington63 min
Aug 5, 7:42 PM CDTSevere Thunderstorm WarningMKXJefferson, Rock63 min
Aug 5, 7:55 PM CDTSevere Thunderstorm WarningMKXDodge, Fond du Lac35 min
Aug 5, 8:11 PM CDTSevere Thunderstorm WarningMKXDane, Green34 min
Aug 5, 8:43 PM CDTSevere Thunderstorm WarningMKXWashington47 min
Aug 5, 8:43 PM CDTSevere Thunderstorm WarningMKXJefferson, Rock47 min
Aug 5, 8:45 PM CDTSevere Thunderstorm WarningMKXMilwaukee, Racine90 min
Aug 5, 8:45 PM CDTSevere Thunderstorm WarningMKXWalworth90 min
Aug 5, 9:12 PM CDTSevere Thunderstorm WarningMKXWaukesha48 min
Aug 5, 9:42 PM CDTSevere Thunderstorm WarningMKXRock33 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.