Monona County weather alerts
There are no active weather alerts for Monona County, IA right now.
Since 2016 the National Weather Service has issued about 909 alerts that included Monona County, roughly 91 a year. The most common is the severe thunderstorm warning (163 from 2016 to 2025). The last tornado warning was issued on April 23, 2026. 28 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 Monona County at the moment. This page updates automatically when the National Weather Service issues one. Check neighboring Crawford County, Woodbury County, Harrison County, Thurston County.
Monona County alert history
Alert events that included Monona County or its forecast zones, from the NWS warning archive.
| Alert type | 2016–2025 | 2026 | Last issued |
|---|---|---|---|
| Severe Thunderstorm Warning | 163 | 19 | September 14, 2026 |
| Winter Weather Advisory | 98 | 1 | February 19, 2026 |
| Wind Advisory | 93 | 4 | June 17, 2026 |
| Dense Fog Advisory | 82 | 7 | September 17, 2026 |
| Severe Thunderstorm Watch | 74 | 11 | August 13, 2026 |
| Red Flag Warning | 40 | 8 | April 18, 2026 |
| Cold Weather Advisory | 38 | 2 | March 16, 2026 |
| Heat Advisory | 35 | 6 | September 2, 2026 |
| Winter Storm Watch | 25 | 1 | March 15, 2026 |
| Freeze Warning | 23 | 2 | October 17, 2026 |
| Tornado Watch | 23 | 3 | June 10, 2026 |
| Flood Watch | 22 | 4 | September 30, 2026 |
| Fire Weather Watch | 22 | 2 | March 28, 2026 |
| Flood Warning | 21 | 0 | July 11, 2025 |
| Flash Flood Warning | 18 | 1 | August 13, 2026 |
| Tornado Warning | 16 | 1 | April 23, 2026 |
| Flood Advisory | 14 | 1 | August 13, 2026 |
| High Wind Warning | 14 | 3 | March 15, 2026 |
| Frost Advisory | 14 | 2 | May 20, 2026 |
| Winter Storm Warning | 13 | 1 | March 15, 2026 |
| Extreme Heat Watch | 11 | 0 | July 28, 2025 |
| Extreme Heat Warning | 9 | 2 | July 25, 2026 |
| Extreme Cold Warning | 9 | 1 | January 23, 2026 |
| Blizzard Warning | 7 | 1 | March 15, 2026 |
| Freeze Watch | 6 | 1 | October 17, 2026 |
| Extreme Cold Watch | 6 | 1 | January 23, 2026 |
| High Wind Watch | 6 | 1 | March 15, 2026 |
| Snow Squall Warning | 4 | 1 | January 16, 2026 |
| Ice Storm Warning | 3 | 0 | January 2, 2023 |
Tornado history in Monona County
28 tornadoes have been recorded in Monona County since 1950, killing 4 people and injuring 62. That ranks 67 of 99 counties in Iowa. The most recent was on April 26, 2024 (rated EF1).
Strongest tornadoes in Monona County
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| June 11, 2008 | EF3 | Harrison County | 13 mi | 440 yd | 4 | 48 |
| April 9, 2011 | EF3 | Monona County | 3.4 mi | 1,200 yd | 0 | 14 |
| May 16, 1999 | F2 | Monona County | 22.5 mi | 90 yd | 0 | 0 |
| September 9, 1965 | F2 | Monona County | 10.2 mi | 100 yd | 0 | 0 |
| May 28, 1991 | F2 | Monona County | 5 mi | 60 yd | 0 | 0 |
Most recent tornadoes
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| April 26, 2024 | EF1 | Monona County | 3.3 mi | 250 yd | 0 | 0 |
| April 26, 2024 | EF0 | Monona County | 1.5 mi | 100 yd | 0 | 0 |
| April 26, 2024 | EF1 | Harrison County | 9.1 mi | 766 yd | 0 | 0 |
| April 14, 2012 | EF0 | Monona County | 0.4 mi | 25 yd | 0 | 0 |
| June 20, 2011 | EF1 | Monona County | 7.1 mi | 300 yd | 0 | 0 |
About Monona County
- Population: 8,429 (2024 estimate)
- State: Iowa
- NOAA Weather Radio SAME code: 019133 (how to use it)