Green County weather alerts
There are no active weather alerts for Green County, WI right now.
Since 2016 the National Weather Service has issued about 823 alerts that included Green County, roughly 82 a year. The most common is the severe thunderstorm warning (138 from 2016 to 2025). The last tornado warning was issued on June 18, 2026. 35 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 County at the moment. This page updates automatically when the National Weather Service issues one. Check neighboring Winnebago County, Rock County, Stephenson County, Dane County.
Green County alert history
Alert events that included Green County or its forecast zones, from the NWS warning archive.
| Alert type | 2016–2025 | 2026 | Last issued |
|---|---|---|---|
| Severe Thunderstorm Warning | 138 | 32 | September 3, 2026 |
| Dense Fog Advisory | 123 | 5 | August 13, 2026 |
| Winter Weather Advisory | 93 | 7 | March 16, 2026 |
| Severe Thunderstorm Watch | 69 | 10 | August 21, 2026 |
| Flood Warning | 49 | 2 | April 18, 2026 |
| Wind Advisory | 44 | 4 | May 12, 2026 |
| Cold Weather Advisory | 40 | 3 | January 26, 2026 |
| Flood Advisory | 38 | 6 | September 19, 2026 |
| Frost Advisory | 33 | 5 | May 11, 2026 |
| Flood Watch | 26 | 4 | September 19, 2026 |
| Tornado Warning | 25 | 4 | June 18, 2026 |
| Heat Advisory | 23 | 3 | July 27, 2026 |
| Winter Storm Warning | 21 | 1 | March 15, 2026 |
| Tornado Watch | 21 | 5 | June 17, 2026 |
| Winter Storm Watch | 20 | 1 | March 15, 2026 |
| Freeze Warning | 16 | 2 | October 17, 2026 |
| Flash Flood Warning | 8 | 5 | June 24, 2026 |
| Extreme Heat Warning | 6 | 2 | July 27, 2026 |
| High Wind Warning | 6 | 1 | March 13, 2026 |
| Freeze Watch | 5 | 1 | October 17, 2026 |
| Extreme Heat Watch | 4 | 1 | June 29, 2026 |
| Fire Weather Watch | 4 | 0 | September 3, 2023 |
| Red Flag Warning | 4 | 0 | September 3, 2023 |
| High Wind Watch | 2 | 0 | December 16, 2021 |
| Extreme Cold Warning | 2 | 1 | January 23, 2026 |
| Snow Squall Warning | 2 | 0 | February 19, 2022 |
| Ice Storm Warning | 1 | 0 | February 22, 2023 |
| Blizzard Warning | 0 | 1 | March 16, 2026 |
| Extreme Cold Watch | 0 | 2 | January 23, 2026 |
Tornado history in Green County
35 tornadoes have been recorded in Green County since 1950, killing 1 people and injuring 50. That ranks 17 of 72 counties in Wisconsin. The most recent was on June 22, 2024 (rated EF2).
Strongest tornadoes in Green County
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| April 16, 1967 | F3 | Lafayette County | 27.8 mi | 500 yd | 0 | 0 |
| January 24, 1967 | F3 | Green County | 24.9 mi | 200 yd | 0 | 0 |
| March 27, 1991 | F2 | Green County | 32 mi | 440 yd | 1 | 5 |
| September 2, 1963 | F2 | Lafayette County | 9.9 mi | 100 yd | 0 | 0 |
| April 18, 1955 | F2 | Dane County | 9.2 mi | 100 yd | 0 | 0 |
Most recent tornadoes
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| June 22, 2024 | EF2 | Lafayette County | 6.9 mi | 500 yd | 0 | 0 |
| February 8, 2024 | EF1 | Green County | 8.3 mi | 50 yd | 0 | 0 |
| September 25, 2023 | ? | Green County | 0 mi | 25 yd | 0 | 0 |
| March 31, 2023 | EF0 | Green County | 5.8 mi | 75 yd | 0 | 0 |
| March 31, 2023 | EF1 | Green County | 10.2 mi | 50 yd | 0 | 0 |
About Green County
- Population: 37,183 (2024 estimate)
- State: Wisconsin
- NOAA Weather Radio SAME code: 055045 (how to use it)