Winnebago County weather alerts
There are no active weather alerts for Winnebago County, IA right now.
Since 2016 the National Weather Service has issued about 833 alerts that included Winnebago County, roughly 83 a year. The most common is the severe thunderstorm warning (111 from 2016 to 2025). The last tornado warning was issued on May 18, 2026. 24 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 Winnebago County at the moment. This page updates automatically when the National Weather Service issues one. Check neighboring Hancock County, Freeborn County, Faribault County, Kossuth County.
Winnebago County alert history
Alert events that included Winnebago County or its forecast zones, from the NWS warning archive.
| Alert type | 2016–2025 | 2026 | Last issued |
|---|---|---|---|
| Severe Thunderstorm Warning | 111 | 16 | August 7, 2026 |
| Winter Weather Advisory | 100 | 6 | March 16, 2026 |
| Dense Fog Advisory | 94 | 4 | August 7, 2026 |
| Wind Advisory | 91 | 2 | April 8, 2026 |
| Cold Weather Advisory | 70 | 4 | March 16, 2026 |
| Severe Thunderstorm Watch | 66 | 9 | September 2, 2026 |
| Winter Storm Watch | 41 | 1 | March 15, 2026 |
| Winter Storm Warning | 34 | 0 | December 6, 2025 |
| Flood Watch | 28 | 3 | September 30, 2026 |
| Heat Advisory | 26 | 3 | July 27, 2026 |
| Tornado Watch | 23 | 4 | July 20, 2026 |
| Extreme Cold Warning | 18 | 1 | January 23, 2026 |
| Blizzard Warning | 17 | 2 | March 15, 2026 |
| Red Flag Warning | 17 | 3 | March 28, 2026 |
| Frost Advisory | 14 | 3 | May 11, 2026 |
| Freeze Warning | 14 | 2 | October 17, 2026 |
| Flash Flood Warning | 12 | 0 | June 22, 2024 |
| High Wind Warning | 11 | 2 | March 15, 2026 |
| Flood Warning | 8 | 0 | June 22, 2024 |
| Tornado Warning | 8 | 5 | May 18, 2026 |
| Extreme Heat Watch | 7 | 2 | July 27, 2026 |
| Fire Weather Watch | 6 | 2 | March 28, 2026 |
| Extreme Heat Warning | 5 | 2 | July 26, 2026 |
| Extreme Cold Watch | 5 | 1 | January 23, 2026 |
| High Wind Watch | 3 | 2 | March 15, 2026 |
| Freeze Watch | 3 | 1 | October 17, 2026 |
| Ice Storm Warning | 1 | 0 | January 3, 2023 |
Tornado history in Winnebago County
24 tornadoes have been recorded in Winnebago County since 1950, injuring 6 people. That ranks 80 of 99 counties in Iowa. The most recent was on August 17, 2025 (rated unknown).
Strongest tornadoes in Winnebago County
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| June 7, 1984 | F2 | Kossuth County | 21 mi | 150 yd | 0 | 1 |
| June 7, 1984 | F2 | Hancock County | 18 mi | 127 yd | 0 | 0 |
| May 9, 1963 | F2 | Hancock County | 13.1 mi | 400 yd | 0 | 0 |
| May 17, 1982 | F2 | Hancock County | 13 mi | 80 yd | 0 | 0 |
| August 9, 1999 | F2 | Winnebago County | 11.5 mi | 40 yd | 0 | 0 |
Most recent tornadoes
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| August 17, 2025 | ? | Winnebago County | 0.4 mi | 35 yd | 0 | 0 |
| June 9, 2018 | EF1 | Winnebago County | 2.8 mi | 80 yd | 0 | 0 |
| July 27, 2016 | EF0 | Winnebago County | 0.3 mi | 20 yd | 0 | 0 |
| June 1, 2014 | EF0 | Winnebago County | 1.1 mi | 25 yd | 0 | 0 |
| May 4, 2012 | EF1 | Winnebago County | 0.8 mi | 90 yd | 0 | 0 |
About Winnebago County
- Population: 10,383 (2024 estimate)
- State: Iowa
- NOAA Weather Radio SAME code: 019189 (how to use it)