Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2002
Severe Thunderstorm Warning 71, NWS Green Bay, WI
NWS Green Bay, WI issued this severe thunderstorm warning at Jul 30, 2002, 7:12 PM CDT for Portage County, Wood County, Wisconsin. It was in force for 63 min. 1 report 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, 7:12 PM CDT (00:12 UTC)
- Expired
- Jul 30, 2002, 8:15 PM CDT
- In force
- 63 min
- Issued by
- NWS Green Bay, WI
- Area
- Counties, with a storm outline in the text
Counties Portage County, WI, Wood County, WI
The radar
The La Crosse radar (KARX), 134 km from the middle of the area, began a volume at 00:15 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, 7:45 PM CDT | Thunderstorm Wind 50 E | Stevens Pt, 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 00:00Z, 0.2 hours before the alert went out and 142 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
- 3877 J/kg
- Mixed-layer CIN
- -11 J/kg
- Mixed-layer LCL
- 1398 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 82 m²/s²
- 0-3 km storm-relative helicity
- 164 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 8.0
The text
As transmitted, in the capitals the NWS used until 2016.
753 WUUS53 KGRB 310012 SVRGRB WIC097-141-310115- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE GREEN BAY WI 712 PM CDT TUE JUL 30 2002 THE NATIONAL WEATHER SERVICE IN GREEN BAY HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... PORTAGE COUNTY IN WISCONSIN WOOD COUNTY IN WISCONSIN * UNTIL 815 PM CDT * AT 712 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR DETECTED A SEVERE THUNDERSTORM WITH DAMAGING WINDS AND LARGE HAIL. THE STORM WAS LOCATED 7 MILES NORTHEAST OF MARSHFIELD. THAT PLACES IT 25 MILES NORTHWEST OF WISCONSIN RAPIDS. IT WAS MOVING SOUTHEAST AT 35 MPH. * SOME LOCATIONS THAT WILL BE AFFECTED BY THE STORM INCLUDE... BLENKER BY 725 PM CDT. MILLADORE BY 730 PM CDT. JUNCTION CITY BY 735 PM CDT. STEVENS POINT BY 755 PM CDT. WHITING BY 755 PM CDT. SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES WITH LITTLE OR NO WARNING. IF A TORNADO IS SPOTTED...MOVE TO A BASEMENT OR SMALL INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR BUILDING. TORRENTIAL RAIN...WHICH MAY FLOOD LOW LYING AREAS SUCH AS DITCHES AND UNDERPASSES...IS ALSO LIKELY. DO NOT DRIVE YOUR VEHICLE ON A FLOODED ROADWAY. LAT...LON 4468 9019 4454 9024 4432 8949 4466 8932 KURIMSKI
The office that day
Everything else NWS Green Bay, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| 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 |
| Jul 31, 1:02 PM CDT | Severe Thunderstorm Warning | GRB | Oneida, Vilas | 58 min |
Nearby
Severe Thunderstorm Warnings in Wisconsin, 2002Every 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.