Oswego County weather alerts
There are no active weather alerts for Oswego County, NY right now.
Since 2016 the National Weather Service has issued about 921 alerts that included Oswego County, roughly 92 a year. The most common is the severe thunderstorm warning (220 from 2016 to 2025). The last tornado warning was issued on May 13, 2026. 14 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 Oswego County at the moment. This page updates automatically when the National Weather Service issues one. Check neighboring Onondaga County, Jefferson County, Oneida County, Lewis County.
Oswego County alert history
Alert events that included Oswego County or its forecast zones, from the NWS warning archive.
| Alert type | 2016–2025 | 2026 | Last issued |
|---|---|---|---|
| Severe Thunderstorm Warning | 220 | 18 | September 2, 2026 |
| Winter Weather Advisory | 176 | 10 | March 17, 2026 |
| Winter Storm Watch | 82 | 3 | March 13, 2026 |
| Lake Effect Snow Warning | 61 | 2 | March 17, 2026 |
| Wind Advisory | 51 | 3 | June 18, 2026 |
| Winter Storm Warning | 49 | 4 | March 13, 2026 |
| Severe Thunderstorm Watch | 41 | 5 | August 27, 2026 |
| Heat Advisory | 40 | 3 | July 14, 2026 |
| Frost Advisory | 31 | 5 | May 22, 2026 |
| Flood Watch | 29 | 2 | August 2, 2026 |
| Cold Weather Advisory | 18 | 3 | February 8, 2026 |
| Flood Warning | 17 | 0 | March 16, 2025 |
| High Wind Warning | 15 | 0 | February 28, 2024 |
| Snow Squall Warning | 12 | 1 | February 3, 2026 |
| High Wind Watch | 11 | 0 | February 28, 2024 |
| Tornado Warning | 10 | 1 | May 13, 2026 |
| Flash Flood Warning | 10 | 0 | June 10, 2025 |
| Freeze Warning | 10 | 1 | May 12, 2026 |
| Dense Fog Advisory | 8 | 2 | March 21, 2026 |
| Extreme Cold Watch | 6 | 1 | February 7, 2026 |
| Extreme Cold Warning | 6 | 1 | February 7, 2026 |
| Tornado Watch | 5 | 2 | September 2, 2026 |
| Blizzard Warning | 4 | 0 | February 27, 2020 |
| Flood Advisory | 3 | 1 | April 1, 2026 |
| Freeze Watch | 3 | 0 | May 18, 2023 |
| Extreme Heat Warning | 2 | 1 | July 1, 2026 |
| Ice Storm Warning | 1 | 0 | April 14, 2018 |
| Extreme Heat Watch | 0 | 1 | July 1, 2026 |
Tornado history in Oswego County
14 tornadoes have been recorded in Oswego County since 1950, injuring 9 people. That ranks 8 of 62 counties in New York. The most recent was on July 24, 2024 (rated EF0).
Strongest tornadoes in Oswego County
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| May 2, 1983 | F3 | Oswego County | 3 mi | 150 yd | 0 | 0 |
| July 13, 1986 | F1 | Oswego County | 11 mi | 10 yd | 0 | 5 |
| July 10, 2024 | EF1 | Oswego County | 2.2 mi | 50 yd | 0 | 0 |
| September 9, 1960 | F1 | Oswego County | 2 mi | 250 yd | 0 | 0 |
| September 8, 1981 | F1 | Oswego County | 0.1 mi | 10 yd | 0 | 0 |
Most recent tornadoes
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| July 24, 2024 | EF0 | Oswego County | 0.2 mi | 75 yd | 0 | 0 |
| July 10, 2024 | EF1 | Oswego County | 2.2 mi | 50 yd | 0 | 0 |
| June 28, 2010 | EF0 | Oswego County | 1.8 mi | 150 yd | 0 | 0 |
| July 15, 1996 | F0 | Oswego County | 0.5 mi | 10 yd | 0 | 3 |
| August 31, 1995 | F0 | Oswego County | 0.1 mi | 10 yd | 0 | 1 |
About Oswego County
- Population: 118,305 (2024 estimate)
- State: New York
- NOAA Weather Radio SAME code: 036075 (how to use it)