Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2002
Severe Thunderstorm Warning 63, NWS Green Bay, WI
NWS Green Bay, WI issued this severe thunderstorm warning at Jul 27, 2002, 5:00 PM CDT for Lincoln County, Oneida County, Vilas County, Wisconsin. It was in force for 60 min. 6 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 27, 2002, 5:00 PM CDT (22:00 UTC)
- Expired
- Jul 27, 2002, 6:00 PM CDT
- In force
- 60 min
- Issued by
- NWS Green Bay, WI
- Area
- Counties, with a storm outline in the text
Counties Lincoln County, WI, Oneida County, WI, Vilas County, WI
The radar
The Duluth radar (KDLH), 195 km from the middle of the area, began a volume at 21:59 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 27, 5:06 PM CDT | Thunderstorm Wind 60 E | Prentice, WI | Trees were blown down. |
| Jul 27, 5:30 PM CDT | Thunderstorm Wind 60 E | Powell, WI | Numerous trees were blown down. |
| Jul 27, 5:35 PM CDT | Thunderstorm Wind 52 E | Minocqua, WI | |
| Jul 27, 5:40 PM CDT | Thunderstorm Wind 50 E | St Germain, WI | |
| Jul 27, 5:40 PM CDT | Thunderstorm Wind 50 E | Rhinelander, WI | |
| Jul 27, 5:47 PM CDT | Hail 0.88 | Tomahawk, 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 27, 3:20 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Green Bay/Straub, WI (KGRB), launched 12:00Z, 10.0 hours before the alert went out and 218 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
- 789 J/kg
- Mixed-layer CIN
- -42 J/kg
- Mixed-layer LCL
- 1005 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 44 m²/s²
- 0-3 km storm-relative helicity
- 81 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.1
The text
As transmitted, in the capitals the NWS used until 2016.
487 WUUS53 KGRB 272200 SVRGRB WIC069-085-125-272300- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE GREEN BAY WI 453 PM CDT SAT JUL 27 2002 THE NATIONAL WEATHER SERVICE IN GREEN BAY HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... LINCOLN COUNTY IN WISCONSIN ONEIDA COUNTY IN WISCONSIN VILAS COUNTY IN WISCONSIN * UNTIL 600 PM CDT * AT 453 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR DETECTED A LINE OF SEVERE THUNDERSTORMS WITH 60 MPH WINDS. THE LINE WAS LOCATED FROM 32 MILES WEST OF LAC DU FLAMBEAU TO 38 MILES SOUTHWEST OF WILLOW RESERVOIR. THE LINE WAS MOVING EAST AT 55 MPH. * SOME LOCATIONS THAT WILL BE AFFECTED BY THE STORMS INCLUDE... TRIPOLI BY 515 PM CDT. LAC DU FLAMBEAU BY 525 PM CDT. TOMAHAWK BY 525 PM CDT. MINOCQUA BY 530 PM CDT. THE STORMS HAD BLOWN DOWN TREES AND POWER LINES IN SAWYER COUNTY. THESE STORMS COULD DAMAGE WEAK STRUCTURES AND TREES. IF YOU ARE IN THE PATH OF THESE STORMS...TAKE COVER IN A STURDY BUILDING UNTIL THE STORMS HAVE PASSED. CAMPERS AND OTHERS SHOULD SEEK SHELTER IN A STURDY BUILDING IMMEDIATELY. LAT...LON 4603 9080 4535 9075 4535 8947 4613 8912 HELMAN
The office that day
Everything else NWS Green Bay, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 27, 6:00 PM CDT | Severe Thunderstorm Warning | GRB | Forest, Langlade, Lincoln, Oneida, Vilas | 60 min |
| Jul 27, 6:13 PM CDT | Severe Thunderstorm Warning | GRB | Florence | 62 min |
| Jul 27, 6:50 PM CDT | Severe Thunderstorm Warning | GRB | Marinette | 70 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.