Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 84, NWS Green Bay, WI

July 31, 2002Oneida County, Vilas County, Wisconsin

NWS Green Bay, WI issued this severe thunderstorm warning at Jul 31, 2002, 1:02 PM CDT for Oneida County, Vilas County, Wisconsin. It was in force for 58 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jul 31, 2002, 1:02 PM CDT (18:02 UTC)
Expired: Jul 31, 2002, 2:00 PM CDT
In force: 58 min
Issued by: NWS Green Bay, WI
Area: Counties, with a storm outline in the text

Counties Oneida County, WI, Vilas County, WI

The radar

The Duluth radar (KDLH), 193 km from the middle of the area, began a volume at 18:05 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

Green Bay/Straub, WI (KGRB), launched 12:00Z, 6.0 hours before the alert went out and 223 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: 1182 J/kg
Mixed-layer CIN: -205 J/kg
Mixed-layer LCL: 1280 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 147 m²/s²
0-3 km storm-relative helicity: 174 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.

896 
WUUS53 KGRB 311802
SVRGRB
WIC085-125-311900-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GREEN BAY WI
102 PM CDT WED JUL 31 2002

THE NATIONAL WEATHER SERVICE IN GREEN BAY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  ONEIDA COUNTY IN WISCONSIN
  VILAS COUNTY IN WISCONSIN

* UNTIL 200 PM CDT

* AT 102 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR DETECTED A
  LINE OF SEVERE THUNDERSTORMS WITH 60 MPH WINDS. THE LINE WAS
  LOCATED FROM 25 MILES WEST OF WINCHESTER TO 36 MILES WEST OF WILLOW
  RESERVOIR. THE LINE WAS MOVING EAST AT 60 MPH.

* SOME LOCATIONS THAT WILL BE AFFECTED BY THE STORMS INCLUDE...
  LAC DU FLAMBEAU BY 120 PM CDT.
  WINCHESTER BY 125 PM CDT.
  MANITOWISH WATERS BY 125 PM CDT.
  PRESQUE ISLE BY 130 PM CDT.

THE EXPECTED WINDS MAY BE STRONG ENOUGH TO DAMAGE WEAK STRUCTURES AND
TREES. IF YOU ARE IN THE WARNED AREA...TAKE COVER IN A STURDY
BUILDING.

CAMPERS AND OTHERS SHOULD SEEK SHELTER IN A STURDY BUILDING
IMMEDIATELY.

LAT...LON 4624 9073 4586 9064 4554 9094 4558 8920
          4583 8913 4625 8907

KIECKBUSCH

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 30, 7:12 PM CDT	Severe Thunderstorm Warning	GRB	Portage, Wood	63 min
Jul 30, 7:16 PM CDT	Severe Thunderstorm Warning	GRB	Langlade	59 min
Jul 30, 7:28 PM CDT	Tornado Warning	GRB	Langlade, Lincoln	32 min
Jul 30, 7:44 PM CDT	Tornado Warning	GRB	Shawano	46 min
Jul 30, 7:55 PM CDT	Severe Thunderstorm Warning	GRB	Lincoln	35 min
Jul 30, 8:03 PM CDT	Severe Thunderstorm Warning	GRB	Menominee	42 min
Jul 30, 8:11 PM CDT	Severe Thunderstorm Warning	GRB	Oconto	49 min
Jul 30, 8:15 PM CDT	Special Marine Warning	GRB		2 hr
Jul 30, 8:15 PM CDT	Special Marine Warning	GRB		2 hr
Jul 30, 8:15 PM CDT	Special Marine Warning	GRB		2 hr
Jul 30, 8:26 PM CDT	Severe Thunderstorm Warning	GRB	Shawano	49 min
Jul 30, 8:29 PM CDT	Severe Thunderstorm Warning	GRB	Waushara	46 min
Jul 30, 8:46 PM CDT	Severe Thunderstorm Warning	GRB	Brown, Vilas	44 min
Jul 30, 8:51 PM CDT	Severe Thunderstorm Warning	GRB	Winnebago	39 min
Jul 30, 8:56 PM CDT	Severe Thunderstorm Warning	GRB	Outagamie	34 min
Jul 30, 9:17 PM CDT	Severe Thunderstorm Warning	GRB	Calumet	43 min
Jul 30, 9:25 PM CDT	Special Marine Warning	GRB		95 min
Jul 30, 9:25 PM CDT	Special Marine Warning	GRB		95 min
Jul 30, 9:29 PM CDT	Severe Thunderstorm Warning	GRB	Brown, Manitowoc	46 min
Jul 30, 9:43 PM CDT	Severe Thunderstorm Warning	GRB	Door	32 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.