Sussex County weather alerts
There are no active weather alerts for Sussex County, NJ right now.
Since 2016 the National Weather Service has issued about 985 alerts that included Sussex County, roughly 99 a year. The most common is the severe thunderstorm warning (166 from 2016 to 2025). The last tornado warning was issued on July 28, 2026. 4 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 Sussex County at the moment. This page updates automatically when the National Weather Service issues one. Check neighboring Orange County, Warren County, Pike County, Monroe County.
Sussex County alert history
Alert events that included Sussex County or its forecast zones, from the NWS warning archive.
| Alert type | 2016–2025 | 2026 | Last issued |
|---|---|---|---|
| Severe Thunderstorm Warning | 166 | 24 | August 11, 2026 |
| Flood Advisory | 147 | 0 | April 12, 2024 |
| Severe Thunderstorm Watch | 89 | 14 | October 16, 2026 |
| Winter Weather Advisory | 89 | 5 | March 3, 2026 |
| Flood Watch | 73 | 6 | August 27, 2026 |
| Wind Advisory | 65 | 3 | September 23, 2026 |
| Dense Fog Advisory | 40 | 7 | November 6, 2026 |
| Flood Warning | 38 | 0 | May 31, 2025 |
| Frost Advisory | 32 | 3 | October 7, 2026 |
| Flash Flood Warning | 29 | 5 | August 7, 2026 |
| Freeze Warning | 26 | 3 | October 18, 2026 |
| Winter Storm Watch | 26 | 2 | February 22, 2026 |
| Winter Storm Warning | 25 | 2 | February 22, 2026 |
| Heat Advisory | 24 | 3 | August 6, 2026 |
| Snow Squall Warning | 23 | 2 | January 1, 2026 |
| Freeze Watch | 15 | 2 | October 18, 2026 |
| Red Flag Warning | 14 | 0 | November 16, 2024 |
| Tornado Watch | 12 | 3 | July 21, 2026 |
| Cold Weather Advisory | 9 | 4 | February 8, 2026 |
| Fire Weather Watch | 8 | 0 | November 16, 2024 |
| Tornado Warning | 7 | 1 | July 28, 2026 |
| Extreme Heat Watch | 6 | 1 | July 1, 2026 |
| High Wind Watch | 6 | 0 | November 6, 2025 |
| High Wind Warning | 6 | 0 | February 16, 2025 |
| Extreme Heat Warning | 4 | 1 | July 1, 2026 |
| Blizzard Warning | 2 | 1 | February 22, 2026 |
| Extreme Cold Watch | 1 | 1 | February 7, 2026 |
| Extreme Cold Warning | 1 | 1 | February 7, 2026 |
| Tropical Storm Warning | 1 | 0 | August 3, 2020 |
| Ice Storm Warning | 1 | 0 | February 15, 2021 |
Tornado history in Sussex County
4 tornadoes have been recorded in Sussex County since 1950. That ranks 17 of 21 counties in New Jersey. The most recent was on May 28, 2019 (rated EF1).
Strongest tornadoes in Sussex County
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| July 29, 2009 | EF2 | Sussex County | 6.6 mi | 100 yd | 0 | 0 |
| May 28, 2019 | EF1 | Sussex County | 1.3 mi | 350 yd | 0 | 0 |
| August 13, 1990 | F0 | Sussex County | 25 mi | 150 yd | 0 | 0 |
| November 16, 1989 | F0 | Sussex County | 0.5 mi | 50 yd | 0 | 0 |
Most recent tornadoes
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| May 28, 2019 | EF1 | Sussex County | 1.3 mi | 350 yd | 0 | 0 |
| July 29, 2009 | EF2 | Sussex County | 6.6 mi | 100 yd | 0 | 0 |
| August 13, 1990 | F0 | Sussex County | 25 mi | 150 yd | 0 | 0 |
| November 16, 1989 | F0 | Sussex County | 0.5 mi | 50 yd | 0 | 0 |
About Sussex County
- Population: 147,444 (2024 estimate)
- State: New Jersey
- NOAA Weather Radio SAME code: 034037 (how to use it)