Alert archive / Wisconsin / Tornado Warnings in 2002
Tornado Warning 12, NWS Green Bay, WI
NWS Green Bay, WI issued this tornado warning at Jul 30, 2002, 6:42 PM CDT for Marathon County, Wisconsin. It was in force for 63 min. 8 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
- Jul 30, 2002, 6:42 PM CDT (23:42 UTC)
- Expired
- Jul 30, 2002, 7:45 PM CDT
- In force
- 63 min
- Issued by
- NWS Green Bay, WI
- Area
- Counties, with a storm outline in the text
County Marathon County, WI
The radar
The La Crosse radar (KARX), 150 km from the middle of the area, began a volume at 23:44 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 |
|---|---|---|---|
| Jul 30, 6:47 PM CDT | Thunderstorm Wind 61 E | Abbotsford, WI | |
| Jul 30, 6:48 PM CDT | Thunderstorm Wind 60 E | Spencer, WI | |
| Jul 30, 6:50 PM CDT | Thunderstorm Wind 61 E | Abbotsford, WI | |
| Jul 30, 7:00 PM CDT | Thunderstorm Wind 50 E | Edgar, WI | |
| Jul 30, 7:10 PM CDT | Thunderstorm Wind 70 E | Riplinger, WI | |
| Jul 30, 7:20 PM CDT | Thunderstorm Wind 61 E | Colby, WI | |
| Jul 30, 7:22 PM CDT | Tornado F0 | (Cwa)Cen Wi Arpt Mos, WI | |
| Jul 30, 7:24 PM CDT | Thunderstorm Wind 52 M | Wausau Arpt, 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 |
|---|---|---|---|
| Jul 30, 5:35 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Green Bay/Straub, WI (KGRB), launched 12:00Z, 11.7 hours before the alert went out and 162 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.
- Mixed-layer CAPE
- 104 J/kg
- Mixed-layer CIN
- -191 J/kg
- Mixed-layer LCL
- 1055 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 32 m²/s²
- 0-3 km storm-relative helicity
- 123 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
655
WFUS53 KGRB 302342
TORGRB
WIC073-310045-
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE GREEN BAY WI
642 PM CDT TUE JUL 30 2002
THE NATIONAL WEATHER SERVICE IN GREEN BAY HAS ISSUED A
* TORNADO WARNING FOR...
MARATHON COUNTY IN WISCONSIN
* UNTIL 745 PM CDT
* AT 642 PM CDT...WEATHER SPOTTERS REPORTED A TORNADO LOCATED NEAR
COLBY. THAT PLACES THE STORM 36 MILES WEST OF WAUSAU. IT WAS MOVING
EAST AT 30 MPH.
* SOME LOCATIONS THAT WILL BE AFFECTED BY THE STORM INCLUDE...
FENWOOD BY 710 PM CDT.
EDGAR BY 710 PM CDT.
MOSINEE BY 735 PM CDT.
THE STORM WILL ALSO PRODUCE WIDESPREAD DAMAGING WINDS AND LARGE
DESTRUCTIVE HAIL.
MOVE TO A BASEMENT OR SMALL INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
BUILDING.
LAT...LON 4506 9041 4488 9047 4471 9025 4470 8945
4503 8939
KURIMSKIThe office that day
Everything else NWS Green Bay, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 30, 6:12 PM CDT | Severe Thunderstorm Warning | GRB | Marathon | 63 min |
| Jul 30, 6:24 PM CDT | Severe Thunderstorm Warning | GRB | Lincoln | 66 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.