Hamilton County weather alerts
There are no active weather alerts for Hamilton County, IN right now.
Since 2016 the National Weather Service has issued about 874 alerts that included Hamilton County, roughly 87 a year. The most common is the severe thunderstorm warning (161 from 2016 to 2025). The last tornado warning was issued on June 12, 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 Hamilton County at the moment. This page updates automatically when the National Weather Service issues one. Check neighboring Boone County, Clinton County, Madison County, Tipton County.
Hamilton County alert history
Alert events that included Hamilton County or its forecast zones, from the NWS warning archive.
| Alert type | 2016–2025 | 2026 | Last issued |
|---|---|---|---|
| Severe Thunderstorm Warning | 161 | 35 | September 5, 2026 |
| Flood Warning | 153 | 13 | August 20, 2026 |
| Flood Advisory | 67 | 14 | August 20, 2026 |
| Wind Advisory | 63 | 7 | April 2, 2026 |
| Dense Fog Advisory | 55 | 6 | August 13, 2026 |
| Winter Weather Advisory | 52 | 1 | March 2, 2026 |
| Severe Thunderstorm Watch | 50 | 17 | November 11, 2026 |
| Frost Advisory | 35 | 4 | October 19, 2026 |
| Freeze Warning | 33 | 4 | October 18, 2026 |
| Tornado Watch | 26 | 3 | June 17, 2026 |
| Flood Watch | 25 | 6 | September 18, 2026 |
| Heat Advisory | 23 | 6 | September 1, 2026 |
| Cold Weather Advisory | 22 | 7 | February 1, 2026 |
| Flash Flood Warning | 19 | 8 | August 19, 2026 |
| Tornado Warning | 16 | 3 | June 12, 2026 |
| Freeze Watch | 15 | 3 | October 18, 2026 |
| Winter Storm Watch | 12 | 1 | January 24, 2026 |
| Winter Storm Warning | 11 | 1 | January 24, 2026 |
| High Wind Warning | 8 | 2 | March 15, 2026 |
| Red Flag Warning | 8 | 0 | October 29, 2024 |
| High Wind Watch | 6 | 0 | January 12, 2024 |
| Extreme Cold Warning | 3 | 3 | January 28, 2026 |
| Extreme Heat Watch | 3 | 0 | August 27, 2024 |
| Extreme Heat Warning | 3 | 1 | June 30, 2026 |
| Extreme Cold Watch | 2 | 0 | January 20, 2025 |
| Fire Weather Watch | 2 | 0 | October 29, 2024 |
| Ice Storm Warning | 1 | 0 | November 15, 2018 |
Tornado history in Hamilton County
30 tornadoes have been recorded in Hamilton County since 1950, killing 28 people and injuring 130. That ranks 14 of 92 counties in Indiana. The most recent was on April 2, 2025 (rated EF1).
Strongest tornadoes in Hamilton County
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| April 11, 1965 | F4 | Montgomery County | 45.7 mi | 1,667 yd | 28 | 123 |
| November 26, 1965 | F3 | Boone County | 14.7 mi | 527 yd | 0 | 5 |
| June 7, 1974 | F2 | Hamilton County | 8 mi | 100 yd | 0 | 0 |
| April 11, 2007 | EF2 | Hamilton County | 4 mi | 100 yd | 0 | 0 |
| July 29, 2024 | EF2 | Hamilton County | 3 mi | 50 yd | 0 | 0 |
Most recent tornadoes
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| April 2, 2025 | EF1 | Hamilton County | 6.6 mi | 150 yd | 0 | 0 |
| July 29, 2024 | EF2 | Hamilton County | 3 mi | 50 yd | 0 | 0 |
| August 15, 2016 | EF1 | Hamilton County | 0.4 mi | 100 yd | 0 | 0 |
| December 23, 2015 | EF1 | Hamilton County | 0.7 mi | 140 yd | 0 | 0 |
| November 17, 2013 | EF1 | Hamilton County | 1.9 mi | 125 yd | 0 | 0 |
About Hamilton County
- Population: 379,704 (2024 estimate)
- State: Indiana
- NOAA Weather Radio SAME code: 018057 (how to use it)
- Cities: Fishers, Carmel