New London County weather alerts
There are no active weather alerts for New London County, CT right now.
Since 2016 the National Weather Service has issued about 969 alerts that included New London County, roughly 97 a year. The most common is the flood advisory (150 from 2016 to 2025). No tornado warnings were recorded here in that period. 2 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 New London County at the moment. This page updates automatically when the National Weather Service issues one. Check neighboring Middlesex County, Kent County, Windham County, Tolland County.
New London County alert history
Alert events that included New London County or its forecast zones, from the NWS warning archive.
| Alert type | 2016–2025 | 2026 | Last issued |
|---|---|---|---|
| Flood Advisory | 150 | 14 | September 13, 2026 |
| Wind Advisory | 99 | 3 | September 25, 2026 |
| Dense Fog Advisory | 85 | 4 | March 16, 2026 |
| Winter Weather Advisory | 74 | 3 | March 3, 2026 |
| Severe Thunderstorm Warning | 63 | 6 | July 5, 2026 |
| Flood Watch | 50 | 4 | September 13, 2026 |
| Frost Advisory | 44 | 9 | November 1, 2026 |
| Flood Warning | 41 | 0 | December 12, 2024 |
| Severe Thunderstorm Watch | 39 | 2 | July 4, 2026 |
| Coastal Flood Advisory | 37 | 2 | September 25, 2026 |
| Freeze Warning | 35 | 2 | October 18, 2026 |
| Heat Advisory | 35 | 6 | August 9, 2026 |
| Winter Storm Warning | 28 | 2 | February 22, 2026 |
| Flash Flood Warning | 27 | 6 | September 13, 2026 |
| High Wind Warning | 24 | 1 | September 26, 2026 |
| Freeze Watch | 22 | 2 | October 18, 2026 |
| Winter Storm Watch | 20 | 2 | February 22, 2026 |
| Red Flag Warning | 18 | 0 | November 15, 2024 |
| High Wind Watch | 17 | 0 | November 6, 2025 |
| Coastal Flood Warning | 8 | 0 | April 3, 2024 |
| Fire Weather Watch | 6 | 0 | May 17, 2023 |
| Tropical Storm Warning | 6 | 0 | August 20, 2021 |
| Cold Weather Advisory | 6 | 3 | February 8, 2026 |
| Snow Squall Warning | 6 | 2 | January 1, 2026 |
| Blizzard Warning | 5 | 1 | February 22, 2026 |
| Extreme Heat Warning | 5 | 1 | July 1, 2026 |
| Tropical Storm Watch | 5 | 0 | July 7, 2021 |
| Extreme Heat Watch | 4 | 1 | July 4, 2026 |
| Tornado Watch | 4 | 0 | July 16, 2023 |
| Extreme Cold Warning | 2 | 1 | February 7, 2026 |
| Extreme Cold Watch | 1 | 1 | February 7, 2026 |
| Hurricane Watch | 1 | 0 | August 20, 2021 |
| Hurricane Warning | 1 | 0 | August 20, 2021 |
| Storm Surge Warning | 1 | 0 | August 20, 2021 |
Tornado history in New London County
2 tornadoes have been recorded in New London County since 1950. That ranks 8 of 8 counties in Connecticut. The most recent was on October 29, 2018 (rated EF0).
Strongest tornadoes in New London County
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| June 30, 1998 | F1 | New London County | 0.1 mi | 30 yd | 0 | 0 |
| October 29, 2018 | EF0 | New London County | 2.3 mi | 100 yd | 0 | 0 |
Most recent tornadoes
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| October 29, 2018 | EF0 | New London County | 2.3 mi | 100 yd | 0 | 0 |
| June 30, 1998 | F1 | New London County | 0.1 mi | 30 yd | 0 | 0 |
About New London County
- State: Connecticut
- NOAA Weather Radio SAME code: 009011 (how to use it)