Alert archive / Wisconsin / Tornado Warnings in 2002

Tornado Warning 15, NWS Green Bay, WI

September 2, 2002Marathon County, Wisconsin

NWS Green Bay, WI issued this tornado warning at Sep 2, 2002, 6:08 PM CDT for Marathon County, Wisconsin. It was in force for 52 min. 4 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: Sep 2, 2002, 6:08 PM CDT (23:08 UTC)
Expired: Sep 2, 2002, 7:00 PM CDT
In force: 52 min
Issued by: NWS Green Bay, WI
Area: Counties, with a storm outline in the text

County Marathon County, WI

What was reported inside it

Time	Report	Where
Sep 2, 6:10 PM CDT	Hail 1	Owen, WI
Sep 2, 6:25 PM CDT	Hail 1	Colby, WI
Sep 2, 6:35 PM CDT	Tornado F1	Wausau, WI
Sep 2, 7:03 PM CDT	Thunderstorm Wind 50 E	Wausau, 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.

Issued	Product	Office	Lasted
Sep 2, 1:45 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
Sep 2, 4:45 PM CDT	Tornado Watch	SPC	5 hr

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 12:00Z, 11.1 hours before the alert went out and 168 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: 5 J/kg
Mixed-layer CIN: -474 J/kg
Mixed-layer LCL: 1493 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 163 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.

395 
WFUS53 KGRB 022308
TORGRB
WIC073-030000-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE GREEN BAY WI
607 PM CDT MON SEP 2 2002

THE NATIONAL WEATHER SERVICE IN GREEN BAY HAS ISSUED A

* TORNADO WARNING FOR...
  MARATHON COUNTY IN WISCONSIN

* UNTIL 700 PM CDT

* AT 607 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR AND SPOTTER
  REPORTS INDICATED A TORNADO LOCATED NEAR ATHENS. THAT PLACES THE
  STORM 26 MILES WEST OF WAUSAU. IT WAS MOVING EAST AT 40 MPH.

* SOME LOCATIONS THAT WILL BE AFFECTED BY THE STORM INCLUDE...
  PONIATOWSKI BY 620 PM CDT.
  RIB FALLS BY 625 PM CDT.
  MARATHON CITY BY 630 PM CDT.
  RIB MOUNTAIN STATE PARK BY 640 PM CDT.
  RIB MOUNTAIN BY 640 PM CDT.

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

LAT...LON 4520 9051 4486 9068 4470 8951 4499 8930

KIECKBUSCH

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 2, 3:05 AM CDT	Special Marine Warning	GRB		115 min
Sep 2, 3:05 AM CDT	Special Marine Warning	GRB		115 min
Sep 2, 5:38 PM CDT	Severe Thunderstorm Warning	GRB	Lincoln, Oneida	37 min
Sep 2, 5:39 PM CDT	Severe Thunderstorm Warning	GRB	Marathon	81 min
Sep 2, 6:29 PM CDT	Severe Thunderstorm Warning	GRB	Portage, Wood	61 min
Sep 2, 6:59 PM CDT	Tornado Warning	GRB	Langlade, Marathon, Shawano	31 min

Nearby

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