Sac County weather alerts
There are no active weather alerts for Sac County, IA right now.
Since 2016 the National Weather Service has issued about 736 alerts that included Sac County, roughly 74 a year. The most common is the severe thunderstorm warning (103 from 2016 to 2025). The last tornado warning was issued on May 18, 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 Sac County at the moment. This page updates automatically when the National Weather Service issues one. Check neighboring Ida County, Carroll County, Crawford County, Calhoun County.
Sac County alert history
Alert events that included Sac County or its forecast zones, from the NWS warning archive.
| Alert type | 2016–2025 | 2026 | Last issued |
|---|---|---|---|
| Severe Thunderstorm Warning | 103 | 17 | October 9, 2026 |
| Winter Weather Advisory | 90 | 4 | March 16, 2026 |
| Wind Advisory | 85 | 4 | June 17, 2026 |
| Dense Fog Advisory | 75 | 6 | September 17, 2026 |
| Severe Thunderstorm Watch | 64 | 11 | August 13, 2026 |
| Cold Weather Advisory | 51 | 4 | March 16, 2026 |
| Heat Advisory | 33 | 5 | August 31, 2026 |
| Winter Storm Watch | 27 | 1 | March 15, 2026 |
| Flood Watch | 25 | 4 | September 30, 2026 |
| Red Flag Warning | 24 | 5 | March 28, 2026 |
| Winter Storm Warning | 19 | 0 | November 28, 2025 |
| Tornado Watch | 19 | 2 | May 18, 2026 |
| Freeze Warning | 17 | 2 | October 17, 2026 |
| Blizzard Warning | 15 | 1 | March 15, 2026 |
| Frost Advisory | 14 | 1 | May 2, 2026 |
| Extreme Cold Warning | 12 | 1 | January 23, 2026 |
| Fire Weather Watch | 12 | 2 | March 28, 2026 |
| High Wind Warning | 9 | 3 | March 15, 2026 |
| Extreme Heat Watch | 8 | 2 | July 27, 2026 |
| Tornado Warning | 8 | 1 | May 18, 2026 |
| Extreme Heat Warning | 7 | 2 | July 26, 2026 |
| Freeze Watch | 4 | 1 | October 17, 2026 |
| Extreme Cold Watch | 4 | 1 | January 23, 2026 |
| Flash Flood Warning | 3 | 1 | July 4, 2026 |
| Flood Warning | 3 | 0 | March 16, 2019 |
| High Wind Watch | 3 | 2 | March 15, 2026 |
| Ice Storm Warning | 2 | 0 | January 3, 2023 |
Tornado history in Sac County
28 tornadoes have been recorded in Sac County since 1950. That ranks 67 of 99 counties in Iowa. The most recent was on August 5, 2023 (rated unknown).
Strongest tornadoes in Sac County
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| May 27, 1995 | F4 | Carroll County | 36 mi | 400 yd | 0 | 0 |
| April 9, 2011 | EF3 | Sac County | 29.4 mi | 2,640 yd | 0 | 0 |
| April 9, 2011 | EF3 | Sac County | 10.1 mi | 1,760 yd | 0 | 0 |
| April 26, 1991 | F3 | Crawford County | 7.7 mi | 150 yd | 0 | 0 |
| June 7, 1953 | F2 | Ida County | 49.2 mi | 833 yd | 0 | 0 |
Most recent tornadoes
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| August 5, 2023 | ? | Sac County | 0.3 mi | 50 yd | 0 | 0 |
| August 5, 2023 | EF0 | Sac County | 0.9 mi | 35 yd | 0 | 0 |
| May 13, 2023 | ? | Sac County | 0.3 mi | 30 yd | 0 | 0 |
| December 15, 2021 | EF2 | Carroll County | 17.6 mi | 100 yd | 0 | 0 |
| July 14, 2021 | ? | Sac County | 0.8 mi | 30 yd | 0 | 0 |
About Sac County
- Population: 9,533 (2024 estimate)
- State: Iowa
- NOAA Weather Radio SAME code: 019161 (how to use it)