Alert archive / Wisconsin / Tornado Warnings in 2002

Tornado Warning 7, NWS Green Bay, WI

May 6, 2002Outagamie County, Winnebago County, Wisconsin

NWS Green Bay, WI issued this tornado warning at May 6, 2002, 5:43 PM CDT for Outagamie County, Winnebago County, Wisconsin. It was in force for 47 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
May 6, 2002, 5:43 PM CDT (22:43 UTC)
Expired
May 6, 2002, 6:30 PM CDT
In force
47 min
Issued by
NWS Green Bay, WI
Area
Whole counties

Counties Outagamie County, WI, Winnebago County, WI

The radar

The Green Bay radar (KGRB), 45 km from the middle of the area, began a volume at 22:42 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
May 6, 5:45 PM CDTHail 0.75Hortonville, WI
May 6, 5:58 PM CDTHail 1.5Neenah, WI
May 6, 6:02 PM CDTTornado F0Oshkosh Wittman Fld, 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
May 6, 3:30 PM CDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 12:00Z, 10.7 hours before the alert went out and 45 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 12:00Z on 2002-05-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 12:00Z on 2002-05-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 220 square meters per square second.1939587897117136Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1035 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
220 m²/s²
0-3 km storm-relative helicity
210 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 
WFUS53 KGRB 062243
TORGRB
WIC087-139-062330-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE GREEN BAY WI
542 PM CDT MON MAY 6 2002

THE NATIONAL WEATHER SERVICE IN GREEN BAY HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHERN WINNEBAGO COUNTY IN WISCONSIN
  SOUTHERN OUTAGAMIE COUNTY IN WISCONSIN

* UNTIL 630 PM CDT

* AT 542 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR DETECTED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THE MOST
  DANGEROUS PART OF THE STORM WAS LOCATED 7 MILES NORTHWEST OF
  ZITTAU. THAT PLACES THE STORM 11 MILES EAST OF WAUPACA. IT WAS
  MOVING EAST AT 35 MPH.

* SOME LOCATIONS THAT WILL BE AFFECTED BY THE STORM INCLUDE...
  DALE BY 550 PM CDT.
  MEDINA BY 555 PM CDT.
  GREENVILLE BY 600 PM CDT.
  APPLETON BY 610 PM CDT.
  MENASHA BY 610 PM CDT.

THE STORM WILL ALSO PRODUCE DAMAGING WINDS AND LARGE HAIL.

MOVE TO A BASEMENT OR SMALL INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
BUILDING.

The office that day

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

IssuedProductOfficeCountiesLasted
May 6, 3:12 PM CDTSevere Thunderstorm WarningGRBMarathon48 min
May 6, 3:59 PM CDTSevere Thunderstorm WarningGRBMarathon46 min
May 6, 4:12 PM CDTSevere Thunderstorm WarningGRBPortage48 min
May 6, 4:46 PM CDTSevere Thunderstorm WarningGRBWaupaca44 min
May 6, 4:50 PM CDTSevere Thunderstorm WarningGRBWood40 min
May 6, 5:13 PM CDTSevere Thunderstorm WarningGRBWaushara, Winnebago32 min
May 6, 5:26 PM CDTTornado WarningGRBWaupaca34 min
May 6, 5:49 PM CDTSevere Thunderstorm WarningGRBWaushara41 min
May 6, 6:06 PM CDTSevere Thunderstorm WarningGRBCalumet24 min
May 6, 6:16 PM CDTTornado WarningGRBCalumet29 min
May 6, 6:25 PM CDTSpecial Marine WarningGRB110 min
May 6, 6:25 PM CDTSpecial Marine WarningGRB110 min
May 6, 6:25 PM CDTSpecial Marine WarningGRB110 min
May 6, 6:27 PM CDTSevere Thunderstorm WarningGRBBrown33 min
May 6, 6:30 PM CDTSevere Thunderstorm WarningGRBWaushara45 min
May 6, 6:35 PM CDTSevere Thunderstorm WarningGRBManitowoc40 min
May 6, 6:43 PM CDTSevere Thunderstorm WarningGRBCalumet32 min

Nearby

Tornado Warnings in Wisconsin, 2002Every tornado warning in 2002Tornadoes 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.