Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2025
Severe Thunderstorm Warning 61, NWS Green Bay, WI
NWS Green Bay, WI issued this severe thunderstorm warning at Jun 29, 2025, 1:38 PM CDT for Shawano County, Waupaca County, Wisconsin. It was in force for 40 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jun 29, 2025, 1:38 PM CDT (18:38 UTC)
- Expired
- Jun 29, 2025, 2:18 PM CDT
- In force
- 40 min
- Issued by
- NWS Green Bay, WI
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Shawano County, WI, Waupaca County, WI
The radar
The Green Bay radar (KGRB), 61 km from the middle of the area, began a volume at 18:38 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.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 29, 1:28 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
The nearest sounding before it
Green Bay/Straub, WI (KGRB), launched 12:00Z, 6.6 hours before the alert went out and 63 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
- 1382 J/kg
- Mixed-layer CIN
- -78 J/kg
- Mixed-layer LCL
- 876 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 183 m²/s²
- 0-3 km storm-relative helicity
- 191 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Green Bay, WI wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 29, 1:38 PM CDT, 0 minutes earlier.
Area forecast discussion, Jun 29, 1:38 PM CDT, 0 minutes before
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</html>Hazardous weather outlook, Jun 29, 1:34 PM CDT, 4 minutes before
Hazardous Weather Outlook National Weather Service Green Bay WI 134 PM CDT Sun Jun 29 2025 WIZ005-010>013-018>022-030-031-035>040-045-048>050-073-074-301845- Vilas-Oneida-Forest-Florence-Northern Marinette County-Lincoln- Langlade-Menominee-Northern Oconto County-Door-Marathon-Shawano- Wood-Portage-Waupaca-Outagamie-Brown-Kewaunee-Waushara-Winnebago- Calumet-Manitowoc-Southern Marinette County- Southern Oconto County- 134 PM CDT Sun Jun 29 2025 This Hazardous Weather Outlook is for north-central and northeast Wisconsin. .DAY ONE...This Afternoon and Tonight Thunderstorms are expected to re-develop and continue through the evening. Some storms may become strong to severe, with damaging winds and large hail up to one inch in diameter being the primary hazards. Torrential rainfall will also be possible, along with localized flooding of urban and low-lying areas. The greatest risk of heavy rainfall will be across northeast and east-central Wisconsin, including the Fox Valley. High temperatures near 90 degrees combined with high humidity will result in heat indices reaching the middle to upper 90s across portions of central into northeast Wisconsin into early this evening. .DAYS TWO THROUGH SEVEN...Monday through Saturday Thunderstorm chances return Monday with some of the storms could produce hail and gusty winds. There is a chance of thunderstorms Wednesday and Wednesday night. However, it is still too early to determine severe potential. .SPOTTER INFORMATION STATEMENT... Spotters are requested to report any wind damage, hail, or flooding to the National Weather Service in Green Bay. LMZ521-522-541>543-301845- The Bay of Green Bay south of a line from Cedar River MI to Rock Island Passage-Lake Michigan from Washington Island to Sheboygan- 134 PM CDT Sun Jun 29 2025 This Hazardous Weather Outlook is for portions of northwest Lake Michigan and the waters of Green Bay. .DAY ONE...This Afternoon and Tonight Scattered thunderstorms are possible late this afternoon, continuing through this evening. Some storms could pose a serious hazard to mariners, including strong wind gusts and large hail. .DAYS TWO THROUGH SEVEN...Monday through Saturday Thunderstorm chances return on Monday, and then again Wednesday and Wednesday night. Any storm may pose a hazard to mariners. Eckberg/Goodin
In the hours before
Local storm report, Jun 29, 10:01 AM CDT, 3 hours 37 minutes before
Preliminary Local Storm Report
National Weather Service Green Bay WI
1001 AM CDT Sun Jun 29 2025
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0955 AM Rain Sturgeon Bay 44.83N 87.38W
06/29/2025 M1.32 Inch Door WI CO-OP Observer
1.32" of rain fell within a 35-minute period
early this morning.
&&The office that day
Everything else NWS Green Bay, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 29, 2:25 AM CDT | Special Weather Statement | GRB | Lincoln, Oneida, Vilas | 50 min |
| Jun 29, 3:06 AM CDT | Special Weather Statement | GRB | Lincoln, Oneida, Vilas | 39 min |
| Jun 29, 3:41 AM CDT | Special Weather Statement | GRB | Lincoln, Oneida | 49 min |
| Jun 29, 4:00 AM CDT | Special Weather Statement | GRB | Lincoln | 45 min |
| Jun 29, 5:43 AM CDT | Special Weather Statement | GRB | Door | 47 min |
| Jun 29, 6:14 AM CDT | Special Weather Statement | GRB | Door | 31 min |
| Jun 29, 1:04 PM CDT | Severe Thunderstorm Warning | GRB | Portage, Wood | 36 min |
| Jun 29, 1:51 PM CDT | Severe Thunderstorm Warning | GRB | Shawano, Waupaca | 39 min |
| Jun 29, 2:11 PM CDT | Severe Thunderstorm Warning | GRB | Oconto, Shawano, Waupaca | 49 min |
| Jun 29, 2:21 PM CDT | Severe Thunderstorm Warning | GRB | Portage, Waushara | 39 min |
| Jun 29, 2:42 PM CDT | Flash Flood Warning | GRB | Shawano, Waupaca | 3 hr |
| Jun 29, 2:44 PM CDT | Special Marine Warning | GRB | 61 min | |
| Jun 29, 3:01 PM CDT | Severe Thunderstorm Warning | GRB | Brown, Oconto, Outagamie, Shawano | 44 min |
| Jun 29, 3:19 PM CDT | Severe Thunderstorm Warning | GRB | Outagamie, Waupaca, Winnebago | 37 min |
| Jun 29, 3:23 PM CDT | Severe Thunderstorm Warning | GRB | Door | 52 min |
| Jun 29, 3:27 PM CDT | Areal Flood Advisory | GRB | Brown, Kewaunee, Outagamie, Shawano, Waupaca, Winnebago | 3 hr |
| Jun 29, 3:36 PM CDT | Severe Thunderstorm Warning | GRB | Brown, Kewaunee, Manitowoc, Outagamie | 38 min |
| Jun 29, 3:47 PM CDT | Special Marine Warning | GRB | 88 min | |
| Jun 29, 4:39 PM CDT | Special Weather Statement | GRB | Manitowoc | 36 min |
Nearby
Severe Thunderstorm Warnings in Wisconsin, 2025Every severe thunderstorm warning in 2025
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.