Clay County weather alerts
There are no active weather alerts for Clay County, IA right now.
Since 2016 the National Weather Service has issued about 1,067 alerts that included Clay County, roughly 107 a year. The most common is the flood warning (174 from 2016 to 2025). The last tornado warning was issued on May 18, 2026. 38 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 Clay County at the moment. This page updates automatically when the National Weather Service issues one. Check neighboring O'Brien County, Dickinson County, Palo Alto County, Buena Vista County.
Clay County alert history
Alert events that included Clay County or its forecast zones, from the NWS warning archive.
| Alert type | 2016–2025 | 2026 | Last issued |
|---|---|---|---|
| Flood Warning | 174 | 0 | July 6, 2024 |
| Severe Thunderstorm Warning | 148 | 19 | August 9, 2026 |
| Dense Fog Advisory | 107 | 6 | September 30, 2026 |
| Winter Weather Advisory | 103 | 5 | March 7, 2026 |
| Wind Advisory | 98 | 3 | June 17, 2026 |
| Severe Thunderstorm Watch | 75 | 12 | September 2, 2026 |
| Cold Weather Advisory | 62 | 4 | March 16, 2026 |
| Red Flag Warning | 41 | 6 | May 14, 2026 |
| Heat Advisory | 37 | 6 | July 27, 2026 |
| Winter Storm Watch | 33 | 1 | March 15, 2026 |
| Flood Watch | 22 | 3 | September 30, 2026 |
| Winter Storm Warning | 20 | 0 | December 6, 2025 |
| Fire Weather Watch | 20 | 3 | March 28, 2026 |
| Frost Advisory | 16 | 4 | May 20, 2026 |
| Blizzard Warning | 15 | 2 | March 15, 2026 |
| Tornado Watch | 14 | 3 | June 10, 2026 |
| Extreme Cold Warning | 13 | 1 | January 23, 2026 |
| Extreme Heat Warning | 11 | 2 | July 25, 2026 |
| Tornado Warning | 11 | 4 | May 18, 2026 |
| Freeze Warning | 10 | 2 | October 17, 2026 |
| High Wind Warning | 10 | 2 | March 15, 2026 |
| Flash Flood Warning | 9 | 0 | June 22, 2024 |
| Extreme Heat Watch | 7 | 0 | July 27, 2025 |
| Extreme Cold Watch | 4 | 1 | January 23, 2026 |
| Ice Storm Warning | 3 | 0 | January 2, 2023 |
| Freeze Watch | 2 | 1 | October 17, 2026 |
| High Wind Watch | 2 | 1 | March 13, 2026 |
Tornado history in Clay County
38 tornadoes have been recorded in Clay County since 1950. That ranks 38 of 99 counties in Iowa. The most recent was on June 19, 2014 (rated EF0).
Strongest tornadoes in Clay County
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| October 1, 1971 | F3 | O'Brien County | 11.2 mi | 10 yd | 0 | 0 |
| June 11, 2004 | F3 | Buena Vista County | 6.1 mi | 400 yd | 0 | 0 |
| September 20, 1980 | F3 | Clay County | 1.5 mi | 300 yd | 0 | 0 |
| June 11, 2008 | EF2 | Clay County | 13.1 mi | 100 yd | 0 | 0 |
| April 26, 1954 | F2 | Clay County | 8.4 mi | 10 yd | 0 | 0 |
Most recent tornadoes
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| June 19, 2014 | EF0 | Clay County | 0.2 mi | 50 yd | 0 | 0 |
| June 18, 2014 | EF0 | Clay County | 0.2 mi | 50 yd | 0 | 0 |
| October 4, 2013 | EF0 | Clay County | 0.7 mi | 100 yd | 0 | 0 |
| May 1, 2012 | EF0 | Clay County | 2.6 mi | 50 yd | 0 | 0 |
| April 21, 2012 | EF0 | Clay County | 0.5 mi | 50 yd | 0 | 0 |
About Clay County
- Population: 16,474 (2024 estimate)
- State: Iowa
- NOAA Weather Radio SAME code: 019041 (how to use it)