Green Lake County weather alerts
There are no active weather alerts for Green Lake County, WI right now.
Since 2016 the National Weather Service has issued about 622 alerts that included Green Lake County, roughly 62 a year. The most common is the winter weather advisory (100 from 2016 to 2025). The last tornado warning was issued on August 18, 2026. 40 tornadoes have touched down in the county since 1950.
Updated from the National Weather Service · lists refresh hourly; the live map loads current alerts directly from the NWS
No warnings, watches or advisories include Green Lake County at the moment. This page updates automatically when the National Weather Service issues one. Check neighboring Waushara County, Marquette County, Dodge County, Columbia County.
Green Lake County alert history
Alert events that included Green Lake County or its forecast zones, from the NWS warning archive.
| Alert type | 2016–2025 | 2026 | Last issued |
|---|---|---|---|
| Winter Weather Advisory | 100 | 8 | April 2, 2026 |
| Dense Fog Advisory | 87 | 5 | October 20, 2026 |
| Severe Thunderstorm Warning | 87 | 30 | September 4, 2026 |
| Cold Weather Advisory | 46 | 3 | January 26, 2026 |
| Severe Thunderstorm Watch | 43 | 8 | August 18, 2026 |
| Wind Advisory | 39 | 2 | May 12, 2026 |
| Frost Advisory | 37 | 5 | May 11, 2026 |
| Winter Storm Watch | 21 | 1 | March 15, 2026 |
| Freeze Warning | 19 | 3 | October 17, 2026 |
| Winter Storm Warning | 18 | 1 | March 15, 2026 |
| Flood Advisory | 18 | 5 | September 4, 2026 |
| Flood Watch | 17 | 6 | September 19, 2026 |
| Flood Warning | 17 | 2 | April 20, 2026 |
| Heat Advisory | 15 | 3 | July 27, 2026 |
| Tornado Watch | 12 | 3 | April 17, 2026 |
| Tornado Warning | 9 | 7 | August 18, 2026 |
| Fire Weather Watch | 6 | 0 | September 3, 2023 |
| Red Flag Warning | 6 | 0 | September 3, 2023 |
| Extreme Heat Warning | 5 | 2 | July 27, 2026 |
| Extreme Heat Watch | 4 | 1 | June 29, 2026 |
| High Wind Warning | 4 | 2 | June 11, 2026 |
| Freeze Watch | 4 | 1 | October 17, 2026 |
| Flash Flood Warning | 2 | 0 | August 28, 2018 |
| Extreme Cold Warning | 2 | 1 | January 23, 2026 |
| Snow Squall Warning | 2 | 0 | February 18, 2022 |
| Ice Storm Warning | 1 | 0 | February 19, 2018 |
| High Wind Watch | 1 | 0 | December 16, 2021 |
| Blizzard Warning | 0 | 1 | March 16, 2026 |
| Extreme Cold Watch | 0 | 2 | January 23, 2026 |
Tornado history in Green Lake County
40 tornadoes have been recorded in Green Lake County since 1950, killing 8 people and injuring 56. That ranks 9 of 72 counties in Wisconsin. The most recent was on August 28, 2018 (rated EF0).
Strongest tornadoes in Green Lake County
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| April 3, 1956 | F4 | Green Lake County | 11.5 mi | 440 yd | 7 | 50 |
| June 23, 2004 | F3 | Green Lake County | 7.6 mi | 300 yd | 1 | 1 |
| June 23, 2004 | F3 | Green Lake County | 33.3 mi | 400 yd | 0 | 0 |
| June 8, 1984 | F3 | Columbia County | 29 mi | 200 yd | 0 | 1 |
| June 25, 1950 | F3 | Green Lake County | 0.1 mi | 300 yd | 0 | 0 |
Most recent tornadoes
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| August 28, 2018 | EF0 | Green Lake County | 2.1 mi | 50 yd | 0 | 0 |
| August 28, 2018 | EF1 | Green Lake County | 3.1 mi | 90 yd | 0 | 0 |
| June 21, 2011 | EF1 | Green Lake County | 1.6 mi | 100 yd | 0 | 0 |
| June 21, 2011 | EF1 | Green Lake County | 2.2 mi | 150 yd | 0 | 0 |
| May 22, 2011 | EF0 | Green Lake County | 4.2 mi | 50 yd | 0 | 0 |
About Green Lake County
- Population: 19,370 (2024 estimate)
- State: Wisconsin
- NOAA Weather Radio SAME code: 055047 (how to use it)