Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 2, NWS Milwaukee, WI

April 19, 1996Green County, Rock County, Wisconsin

NWS Milwaukee, WI issued this severe thunderstorm warning at Apr 19, 1996, 9:23 PM CDT for Green County, Rock County, Wisconsin. It was in force for 57 min. 3 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: Apr 19, 1996, 9:23 PM CDT (02:23 UTC)
Expired: Apr 19, 1996, 10:20 PM CDT
In force: 57 min
Issued by: NWS Milwaukee, WI
Area: Whole counties

Counties Green County, WI, Rock County, WI

The radar

The Milwaukee radar (KMKX), 72 km from the middle of the area, began a volume at 02:23 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

Time	Report	Where
Apr 19, 9:45 PM CDT	Hail 1.75	Juda, WI
Apr 19, 10:00 PM CDT	Hail 1.75	Beloit, WI
Apr 19, 10:30 PM CDT	Thunderstorm Wind	Beloit, 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, 2.4 hours before the alert went out and 152 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 92 J/kg
Mixed-layer CIN: -200 J/kg
Mixed-layer LCL: 1735 m above ground
0-6 km bulk shear: 89 kt
0-1 km storm-relative helicity: 497 m²/s²
0-3 km storm-relative helicity: 621 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 5.3

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMKE 200224
SVRMKE
WIC045-105-200320-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
923 PM CDT FRI APR 19 1996

THE NATIONAL WEATHER SERVICE IN MILWAUKEE/SULLIVAN HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1020 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN SOUTH CENTRAL WISCONSIN

   ...SOUTHEAST GREEN COUNTY
   ...ROCK COUNTY 

RADAR INDICATES A SEVERE THUNDERSTORM WILL CROSS THE STATE LINE
INTO SOUTHERN GREEN COUNTY BY 930 PM AND INTO ROCK COUNTY BY 945
PM. LARGE HAIL AND DAMAGING WINDS ARE LIKELY WITH THIS STORM. THE
STORM IS MOVING TO THE NORTHEAST AT 40 MPH.

GO INSIDE A STURDY BUILDING AND STAY AWAY FROM WINDO&WS. A TORNADO
WATCH IS IN EFFECT. SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES.

EISE/BROWNING

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 19, 10:12 PM CDT	Severe Thunderstorm Warning	MKX	Walworth	58 min
Apr 19, 10:20 PM CDT	Severe Thunderstorm Warning	MKX	Rock	40 min
Apr 19, 10:52 PM CDT	Severe Thunderstorm Warning	MKX	Kenosha, Racine	68 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 1996 Every 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.