Portage County weather alerts
There are no active weather alerts for Portage County, WI right now.
Since 2016 the National Weather Service has issued about 701 alerts that included Portage County, roughly 70 a year. The most common is the severe thunderstorm warning (121 from 2016 to 2025). The last tornado warning was issued on July 21, 2026. 25 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 Portage County at the moment. This page updates automatically when the National Weather Service issues one. Check neighboring Waushara County, Waupaca County, Marathon County, Wood County.
Portage County alert history
Alert events that included Portage County or its forecast zones, from the NWS warning archive.
| Alert type | 2016–2025 | 2026 | Last issued |
|---|---|---|---|
| Severe Thunderstorm Warning | 121 | 25 | September 4, 2026 |
| Winter Weather Advisory | 112 | 7 | April 4, 2026 |
| Dense Fog Advisory | 62 | 7 | October 20, 2026 |
| Cold Weather Advisory | 56 | 3 | January 26, 2026 |
| Flood Advisory | 44 | 10 | September 15, 2026 |
| Severe Thunderstorm Watch | 44 | 8 | September 2, 2026 |
| Frost Advisory | 40 | 6 | May 14, 2026 |
| Winter Storm Warning | 39 | 2 | March 15, 2026 |
| Winter Storm Watch | 31 | 2 | April 2, 2026 |
| Flood Warning | 24 | 5 | April 19, 2026 |
| Wind Advisory | 24 | 1 | March 13, 2026 |
| Flood Watch | 22 | 5 | July 2, 2026 |
| Tornado Watch | 16 | 3 | July 20, 2026 |
| Freeze Warning | 15 | 4 | October 17, 2026 |
| Heat Advisory | 10 | 3 | July 27, 2026 |
| Tornado Warning | 10 | 2 | July 21, 2026 |
| Fire Weather Watch | 6 | 0 | September 3, 2023 |
| Red Flag Warning | 6 | 0 | September 3, 2023 |
| Extreme Cold Warning | 5 | 1 | January 23, 2026 |
| Flash Flood Warning | 4 | 3 | July 2, 2026 |
| Freeze Watch | 3 | 1 | October 17, 2026 |
| Extreme Heat Warning | 2 | 1 | June 29, 2026 |
| Blizzard Warning | 1 | 1 | March 15, 2026 |
| High Wind Watch | 1 | 0 | December 16, 2021 |
| High Wind Warning | 1 | 0 | December 16, 2021 |
| Snow Squall Warning | 1 | 0 | February 18, 2022 |
| Ice Storm Warning | 1 | 1 | April 2, 2026 |
| Extreme Cold Watch | 0 | 1 | January 23, 2026 |
| Extreme Heat Watch | 0 | 1 | June 29, 2026 |
Tornado history in Portage County
25 tornadoes have been recorded in Portage County since 1950, killing 8 people and injuring 10. That ranks 30 of 72 counties in Wisconsin. The most recent was on May 15, 2025 (rated EF0).
Strongest tornadoes in Portage County
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| September 26, 1951 | F4 | Portage County | 26.4 mi | 100 yd | 6 | 3 |
| April 3, 1956 | F2 | Portage County | 18.2 mi | 100 yd | 2 | 2 |
| May 22, 2011 | EF2 | Monroe County | 64.5 mi | 800 yd | 0 | 1 |
| May 16, 1992 | F2 | Portage County | 11 mi | 400 yd | 0 | 0 |
| June 23, 2004 | F2 | Portage County | 10 mi | 125 yd | 0 | 0 |
Most recent tornadoes
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| May 15, 2025 | EF0 | Portage County | 5.2 mi | 45 yd | 0 | 0 |
| July 12, 2017 | EF0 | Portage County | 0.7 mi | 30 yd | 0 | 0 |
| July 9, 2013 | EF0 | Portage County | 0.2 mi | 25 yd | 0 | 0 |
| May 22, 2011 | EF2 | Monroe County | 64.5 mi | 800 yd | 0 | 1 |
| June 23, 2004 | F2 | Portage County | 10 mi | 125 yd | 0 | 0 |
About Portage County
- Population: 72,040 (2024 estimate)
- State: Wisconsin
- NOAA Weather Radio SAME code: 055097 (how to use it)