Suffolk County weather alerts
There are no active weather alerts for Suffolk County, NY right now.
Since 2016 the National Weather Service has issued about 1,224 alerts that included Suffolk County, roughly 122 a year. The most common is the flood advisory (285 from 2016 to 2025). The last tornado warning was issued on July 10, 2023. 32 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 Suffolk County at the moment. This page updates automatically when the National Weather Service issues one. Check neighboring Nassau County.
Suffolk County alert history
Alert events that included Suffolk County or its forecast zones, from the NWS warning archive.
| Alert type | 2016–2025 | 2026 | Last issued |
|---|---|---|---|
| Flood Advisory | 285 | 26 | November 6, 2026 |
| Coastal Flood Advisory | 156 | 9 | November 13, 2026 |
| Severe Thunderstorm Warning | 113 | 9 | July 21, 2026 |
| Wind Advisory | 105 | 3 | September 25, 2026 |
| Dense Fog Advisory | 92 | 8 | May 10, 2026 |
| Winter Weather Advisory | 52 | 3 | February 10, 2026 |
| Flash Flood Warning | 48 | 3 | August 13, 2026 |
| Coastal Flood Warning | 45 | 2 | September 25, 2026 |
| Flood Watch | 45 | 4 | September 13, 2026 |
| Heat Advisory | 39 | 5 | August 9, 2026 |
| Severe Thunderstorm Watch | 32 | 4 | July 4, 2026 |
| Frost Advisory | 28 | 5 | November 1, 2026 |
| High Wind Warning | 28 | 1 | September 26, 2026 |
| Freeze Warning | 21 | 1 | April 21, 2026 |
| High Wind Watch | 21 | 0 | November 6, 2025 |
| Winter Storm Warning | 21 | 1 | January 25, 2026 |
| Winter Storm Watch | 18 | 2 | February 22, 2026 |
| Freeze Watch | 15 | 1 | April 21, 2026 |
| Tornado Warning | 11 | 0 | July 10, 2023 |
| Tropical Storm Warning | 6 | 0 | August 20, 2021 |
| Snow Squall Warning | 6 | 3 | January 1, 2026 |
| Blizzard Warning | 5 | 1 | February 22, 2026 |
| Tropical Storm Watch | 5 | 0 | July 7, 2021 |
| Extreme Heat Watch | 4 | 1 | July 4, 2026 |
| Extreme Heat Warning | 4 | 1 | July 1, 2026 |
| Cold Weather Advisory | 4 | 3 | February 8, 2026 |
| Flood Warning | 4 | 0 | August 19, 2024 |
| Tornado Watch | 4 | 0 | July 16, 2023 |
| Fire Weather Watch | 2 | 0 | April 4, 2019 |
| Red Flag Warning | 2 | 0 | April 4, 2019 |
| Hurricane Watch | 1 | 0 | August 20, 2021 |
| Hurricane Warning | 1 | 0 | August 20, 2021 |
| Storm Surge Warning | 1 | 0 | August 20, 2021 |
| Extreme Cold Watch | 0 | 1 | February 7, 2026 |
| Extreme Cold Warning | 0 | 1 | February 7, 2026 |
Tornado history in Suffolk County
32 tornadoes have been recorded in Suffolk County since 1950, injuring 2 people. That ranks 2 of 62 counties in New York. The most recent was on September 25, 2022 (rated EF0).
Strongest tornadoes in Suffolk County
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| August 8, 1999 | F2 | Suffolk County | 4 mi | 300 yd | 0 | 1 |
| July 10, 1989 | F2 | Suffolk County | 0.2 mi | 40 yd | 0 | 1 |
| November 13, 2021 | EF1 | Suffolk County | 5.3 mi | 50 yd | 0 | 0 |
| August 5, 1981 | F1 | Suffolk County | 2.3 mi | 13 yd | 0 | 0 |
| October 29, 2018 | EF1 | Suffolk County | 2 mi | 100 yd | 0 | 0 |
Most recent tornadoes
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| September 25, 2022 | EF0 | Suffolk County | 2.1 mi | 75 yd | 0 | 0 |
| November 13, 2021 | EF0 | Suffolk County | 8.2 mi | 35 yd | 0 | 0 |
| November 13, 2021 | EF0 | Suffolk County | 3.5 mi | 35 yd | 0 | 0 |
| November 13, 2021 | EF1 | Suffolk County | 5.3 mi | 50 yd | 0 | 0 |
| November 13, 2021 | EF0 | Suffolk County | 1.3 mi | 35 yd | 0 | 0 |
About Suffolk County
- Population: 1,535,909 (2024 estimate)
- State: New York
- NOAA Weather Radio SAME code: 036103 (how to use it)