Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 49, NWS Green Bay, WI
NWS Green Bay, WI issued this severe thunderstorm warning at Jun 30, 2001, 3:23 PM CDT for Brown County, Kewaunee County, Wisconsin. It was in force for 52 min. 4 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
- Jun 30, 2001, 3:23 PM CDT (20:23 UTC)
- Expired
- Jun 30, 2001, 4:15 PM CDT
- In force
- 52 min
- Issued by
- NWS Green Bay, WI
- Area
- Whole counties
Counties Brown County, WI, Kewaunee County, WI
The radar
The Green Bay radar (KGRB), 28 km from the middle of the area, began a volume at 20:25 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 |
|---|---|---|---|
| Jun 30, 3:30 PM CDT | Thunderstorm Wind 50 E | Champion, WI | |
| Jun 30, 3:40 PM CDT | Thunderstorm Wind 50 E | Luxemburg, WI | |
| Jun 30, 3:50 PM CDT | Thunderstorm Wind 50 E | Algoma, WI | |
| Jun 30, 3:50 PM CDT | Thunderstorm Wind 50 E | Kewaunee, 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 nearest sounding before it
Green Bay/Straub, WI (KGRB), launched 12:00Z, 8.4 hours before the alert went out and 27 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
- 184 J/kg
- Mixed-layer CIN
- -128 J/kg
- Mixed-layer LCL
- 1351 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 136 m²/s²
- 0-3 km storm-relative helicity
- 141 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
685 WUUS53 KGRB 302025 SVRGRB WIC009-061-302115- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE GREEN BAY WI 323 PM CDT SAT JUN 30 2001 THE NATIONAL WEATHER SERVICE IN GREEN BAY HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... BROWN COUNTY IN WISCONSIN KEWAUNEE COUNTY IN WISCONSIN * UNTIL 415 PM CDT * AT 323 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR DETECTED A SEVERE THUNDERSTORM WITH STRONG WINDS AND HAIL. THE STORM WAS LOCATED 5 MILES NORTHWEST OF CHAMPION...OR 12 MILES NORTHEAST OF GREEN BAY. IT WAS MOVING SOUTHEAST AT 20 MPH. * SOME LOCATIONS THAT WILL BE AFFECTED BY THE STORM INCLUDE... DYCKESVILLE BY 330 PM CDT. LUXEMBURG BY 340 PM CDT. CASCO BY 350 PM CDT. SLOVAN BY 355 PM CDT. ROSTOK BY 405 PM CDT. ALASKA BY 405 PM CDT. IF YOU ARE IN THE PATH OF THIS STORM...PREPARE FOR WINDS IN EXCESS OF 60 MPH...HAIL...AND DEADLY LIGHTNING. SEEK SHELTER IMMEDIATELY. $$ LAT...LON 4468 8773 4456 8791 4429 8736 4450 8718 RM
The office that day
Everything else NWS Green Bay, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 30, 3:07 PM CDT | Severe Thunderstorm Warning | GRB | Winnebago | 23 min |
Nearby
Severe Thunderstorm Warnings in Wisconsin, 2001Every severe thunderstorm warning in 2001
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.