Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 69, NWS Milwaukee, WI

August 5, 1996Jefferson County, Rock County, Wisconsin

NWS Milwaukee, WI issued this severe thunderstorm warning at Aug 5, 1996, 8:43 PM CDT for Jefferson County, Rock County, Wisconsin. It was in force for 47 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, 8:43 PM CDT (01:43 UTC)
Expired
Aug 5, 1996, 9:30 PM CDT
In force
47 min
Issued by
NWS Milwaukee, WI
Area
Whole counties

Counties Jefferson County, WI, Rock County, WI

The radar

The Milwaukee radar (KMKX), 33 km from the middle of the area, began a volume at 01:42 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, 9:05 PM CDTThunderstorm WindMilton, 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

Davenport, (KDVN), launched 00:00Z, 1.7 hours before the alert went out and 188 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 1996-08-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3341 joules per kilogram.LCLEL10008507005003002001001 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 1996-08-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 18 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
3341 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
995 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
18 m²/s²
0-3 km storm-relative helicity
65 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMKE 060143
SVRMKE
WIC105-055-131-060230-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
843 PM CDT MON AUG 5 1996
 
THE NATIONAL WEATHER SERVICE IN MILWAUKEE/SULLIVAN HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  930 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTH WISCONSIN
 
   ...ROCK COUNTY
 
IN SOUTHEAST WISCONSIN
 
   ...EASTERN JEFFERSON COUNTY
   ...SOUTHERN AND EASTERN WASHINGTON COUNTY
 
AT 840 PM... SEVERE STORMS STILL EXTENDED NORTHEAST TO SOUTHWEST ACROSS
PARTS OF WASHINGTON... JEFFERSON... AND ROCK COUNTIES.
 
THE STORMS WILL CONTINUE TO AFFECT THESE AREAS THROUGH 930 PM AND ARE
STILL CAPABLE OF PRODUCING DAMAGING WINDS... TORRENTIAL RAINS AND
DANGEROUS LIGHTNING.  SOME MINOR STREET FLOODING IS LIKELY.
 
THE LINE OF STORMS WAS MOVING EAST AT 20 MPH.
 
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, 3 hours 1 minute 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, 2 hours 7 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 39 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
Special weather statement, Aug 5, 8:17 PM CDT, 26 minutes before
WIZALL-060700-

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

THE SEVERE THUNDERSTORM WATCH PREVIOUSLY IN EFFECT FOR PORTIONS OF
CENTRAL AND NORTHERN |WISCONSIN HAS BEEN CANCELLED AND REPLACED WITH
A SEVERE THUNDERSTORM WATCH FOR THE SOUTHEAST CORNER OF THE STATE.
THE NEW WATCH IS IN EFFECT UNTIL 2 AM TUESDAY MORNING.

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, 8:15 PM CDTSevere Thunderstorm WarningMKXOzaukee, Waukesha60 min
Aug 5, 8:43 PM CDTSevere Thunderstorm WarningMKXWashington47 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.