Hamilton County weather alerts
There are no active weather alerts for Hamilton County, NY right now.
Since 2016 the National Weather Service has issued about 838 alerts that included Hamilton County, roughly 84 a year. The most common is the winter weather advisory (167 from 2016 to 2025). The last tornado warning was issued on August 27, 2026. 7 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 Herkimer County, St. Lawrence County, Essex County, Franklin 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 |
|---|---|---|---|
| Winter Weather Advisory | 167 | 11 | November 12, 2026 |
| Severe Thunderstorm Warning | 156 | 9 | August 27, 2026 |
| Flood Advisory | 67 | 1 | March 31, 2026 |
| Wind Advisory | 59 | 1 | June 18, 2026 |
| Winter Storm Watch | 56 | 3 | March 13, 2026 |
| Winter Storm Warning | 54 | 3 | March 13, 2026 |
| Severe Thunderstorm Watch | 51 | 5 | August 27, 2026 |
| Cold Weather Advisory | 36 | 3 | February 7, 2026 |
| Flood Warning | 29 | 2 | April 1, 2026 |
| Flood Watch | 27 | 2 | March 31, 2026 |
| Frost Advisory | 19 | 0 | September 9, 2025 |
| Lake Effect Snow Warning | 19 | 1 | January 22, 2026 |
| Snow Squall Warning | 17 | 0 | January 28, 2025 |
| Extreme Cold Warning | 13 | 3 | February 7, 2026 |
| Tornado Warning | 10 | 1 | August 27, 2026 |
| Tornado Watch | 9 | 1 | June 18, 2026 |
| High Wind Warning | 9 | 0 | February 17, 2025 |
| Freeze Warning | 7 | 1 | May 22, 2026 |
| Flash Flood Warning | 7 | 0 | July 10, 2024 |
| High Wind Watch | 7 | 0 | February 17, 2025 |
| Extreme Cold Watch | 5 | 2 | February 7, 2026 |
| Ice Storm Warning | 3 | 0 | December 29, 2025 |
| Dense Fog Advisory | 3 | 0 | January 1, 2023 |
| Heat Advisory | 3 | 1 | July 1, 2026 |
| Freeze Watch | 2 | 0 | September 30, 2022 |
| Fire Weather Watch | 1 | 0 | April 19, 2016 |
| Red Flag Warning | 1 | 0 | April 19, 2016 |
| Blizzard Warning | 1 | 0 | February 27, 2020 |
Tornado history in Hamilton County
7 tornadoes have been recorded in Hamilton County since 1950, injuring 1 people. That ranks 33 of 62 counties in New York. The most recent was on July 16, 2024 (rated EF1).
Strongest tornadoes in Hamilton County
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| August 28, 1973 | F2 | Hamilton County | 2.3 mi | 150 yd | 0 | 0 |
| September 3, 1993 | F1 | Hamilton County | 6 mi | 440 yd | 0 | 0 |
| July 16, 2024 | EF1 | Hamilton County | 4.6 mi | 200 yd | 0 | 0 |
| July 16, 2024 | EF1 | Hamilton County | 1.5 mi | 300 yd | 0 | 0 |
| July 16, 2024 | EF1 | Hamilton County | 0.5 mi | 200 yd | 0 | 0 |
Most recent tornadoes
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| July 16, 2024 | EF1 | Hamilton County | 4.6 mi | 200 yd | 0 | 0 |
| July 16, 2024 | EF1 | Hamilton County | 0.5 mi | 200 yd | 0 | 0 |
| July 16, 2024 | EF1 | Hamilton County | 1.5 mi | 300 yd | 0 | 0 |
| September 3, 1993 | F1 | Hamilton County | 6 mi | 440 yd | 0 | 0 |
| November 16, 1989 | F0 | Hamilton County | 1.7 mi | 100 yd | 0 | 0 |
About Hamilton County
- Population: 5,082 (2024 estimate)
- State: New York
- NOAA Weather Radio SAME code: 036041 (how to use it)