Chickasaw County weather alerts
There are no active weather alerts for Chickasaw County, IA right now.
Since 2016 the National Weather Service has issued about 748 alerts that included Chickasaw County, roughly 75 a year. The most common is the winter weather advisory (96 from 2016 to 2025). The last tornado warning was issued on May 18, 2026. 30 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 Chickasaw County at the moment. This page updates automatically when the National Weather Service issues one. Check neighboring Howard County, Bremer County, Fayette County, Winneshiek County.
Chickasaw County alert history
Alert events that included Chickasaw County or its forecast zones, from the NWS warning archive.
| Alert type | 2016–2025 | 2026 | Last issued |
|---|---|---|---|
| Winter Weather Advisory | 96 | 5 | March 16, 2026 |
| Dense Fog Advisory | 91 | 8 | September 30, 2026 |
| Severe Thunderstorm Warning | 78 | 11 | August 11, 2026 |
| Wind Advisory | 72 | 5 | May 12, 2026 |
| Severe Thunderstorm Watch | 66 | 9 | August 18, 2026 |
| Cold Weather Advisory | 58 | 3 | January 26, 2026 |
| Winter Storm Watch | 35 | 1 | March 15, 2026 |
| Flood Watch | 31 | 3 | September 19, 2026 |
| Winter Storm Warning | 29 | 1 | February 20, 2026 |
| Heat Advisory | 26 | 2 | July 20, 2026 |
| Tornado Watch | 25 | 4 | July 20, 2026 |
| Flash Flood Warning | 21 | 0 | August 18, 2025 |
| Freeze Warning | 18 | 2 | October 17, 2026 |
| Flood Warning | 16 | 0 | August 18, 2025 |
| Frost Advisory | 15 | 3 | May 11, 2026 |
| Extreme Cold Warning | 12 | 1 | January 23, 2026 |
| Red Flag Warning | 11 | 2 | March 28, 2026 |
| Flood Advisory | 10 | 1 | August 11, 2026 |
| Blizzard Warning | 9 | 2 | March 15, 2026 |
| Tornado Warning | 6 | 3 | May 18, 2026 |
| Extreme Heat Warning | 5 | 2 | July 26, 2026 |
| Extreme Heat Watch | 4 | 2 | July 27, 2026 |
| High Wind Warning | 4 | 1 | March 13, 2026 |
| Fire Weather Watch | 3 | 2 | March 28, 2026 |
| Freeze Watch | 3 | 1 | October 17, 2026 |
| High Wind Watch | 2 | 1 | March 13, 2026 |
| Extreme Cold Watch | 2 | 1 | January 23, 2026 |
Tornado history in Chickasaw County
30 tornadoes have been recorded in Chickasaw County since 1950, killing 14 people and injuring 473. That ranks 59 of 99 counties in Iowa. The most recent was on December 15, 2021 (rated EF0).
Strongest tornadoes in Chickasaw County
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| May 15, 1968 | F5 | Franklin County | 62.1 mi | 600 yd | 13 | 462 |
| July 12, 1971 | F4 | Howard County | 10.9 mi | 1,320 yd | 0 | 8 |
| May 20, 1953 | F3 | Story County | 116.1 mi | 400 yd | 1 | 0 |
| July 7, 1994 | F2 | Chickasaw County | 9.5 mi | 100 yd | 0 | 0 |
| August 9, 1993 | F2 | Chickasaw County | 5 mi | 53 yd | 0 | 2 |
Most recent tornadoes
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| December 15, 2021 | EF0 | Chickasaw County | 5 mi | 50 yd | 0 | 0 |
| December 15, 2021 | EF1 | Chickasaw County | 4 mi | 180 yd | 0 | 0 |
| May 27, 2019 | EF0 | Chickasaw County | 4.1 mi | 25 yd | 0 | 0 |
| August 31, 2014 | EF0 | Chickasaw County | 3 mi | 60 yd | 0 | 0 |
| August 19, 2009 | EF0 | Chickasaw County | 1.1 mi | 40 yd | 0 | 0 |
About Chickasaw County
- Population: 11,719 (2024 estimate)
- State: Iowa
- NOAA Weather Radio SAME code: 019037 (how to use it)