Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 46, NWS Milwaukee, WI

June 15, 2002Milwaukee County, Racine County, Wisconsin

NWS Milwaukee, WI issued this severe thunderstorm warning at Jun 15, 2002, 5:31 PM CDT for Milwaukee County, Racine County, Wisconsin. It was in force for 44 min. 2 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Jun 15, 2002, 5:31 PM CDT (22:31 UTC)
Expired: Jun 15, 2002, 6:15 PM CDT
In force: 44 min
Issued by: NWS Milwaukee, WI
Area: Counties, with a storm outline in the text

Counties Milwaukee County, WI, Racine County, WI

The radar

The Milwaukee radar (KMKX), 77 km from the middle of the area, began a volume at 22:33 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	Remark
Jun 15, 5:32 PM CDT	Hail 0.75	Oak Creek, WI
Jun 15, 6:07 PM CDT	Hail 0.75	Racine, 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 12:00Z, 10.5 hours before the alert went out and 199 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1176 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: -12 m²/s²
0-3 km storm-relative helicity: 32 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 
WUUS53 KMKX 152231
SVRMKE
WIC079-101-152315-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
531 PM CDT SAT JUN 15 2002

THE NATIONAL WEATHER SERVICE IN SULLIVAN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  MILWAUKEE COUNTY IN SOUTHEAST WISCONSIN
  NORTHERN RACINE COUNTY IN SOUTHEAST WISCONSIN

* UNTIL 615 PM CDT

* AT 531 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM NEAR OAK CREEK...MOVING SOUTHEAST AT 40 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  NORTH BAY AT 545 PM CDT.
  ELMWOOD PARK AT 550 PM CDT.

IF YOU ARE IN THE PATH OF THIS STORM...YOU SHOULD PREPARE FOR
DAMAGING WINDS IN EXCESS OF 60 MPH...LARGE HAIL...AND DEADLY
LIGHTNING. SEEK SHELTER IMMEDIATELY

HAIL UP TO 3/4 OF AN INCH IN DIAMETER AND WINDS GREATER THAN 60 MILES
AN HOUR ARE EXPECTED FROM THIS STORM. IF YOU ARE IN THE STORMS
PATH...SEEK SHELTER INDOORS.

LAT...LON 4300 8792 4287 8809 4227 8735 4245 8709

ZAJDEL

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 15, 2:30 PM CDT	Severe Thunderstorm Warning	MKX	Ozaukee, Washington	60 min
Jun 15, 2:39 PM CDT	Special Marine Warning	MKX		66 min
Jun 15, 2:39 PM CDT	Special Marine Warning	MKX		66 min
Jun 15, 2:59 PM CDT	Severe Thunderstorm Warning	MKX	Fond du Lac	31 min
Jun 15, 3:47 PM CDT	Special Marine Warning	MKX		2 hr
Jun 15, 3:47 PM CDT	Special Marine Warning	MKX		2 hr
Jun 15, 3:47 PM CDT	Special Marine Warning	MKX		2 hr
Jun 15, 4:54 PM CDT	Severe Thunderstorm Warning	MKX	Milwaukee	36 min
Jun 15, 5:57 PM CDT	Special Marine Warning	MKX		108 min
Jun 15, 5:57 PM CDT	Special Marine Warning	MKX		108 min
Jun 15, 5:57 PM CDT	Special Marine Warning	MKX		108 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 2002 Every severe thunderstorm warning in 2002

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.