New Hampshire flood watches
There are no flood watches in New Hampshire right now. The last one was issued on July 29, 2026.
Heavy rain or snowmelt could cause flooding or flash flooding. Be ready to act if a warning is issued.
Updated from the National Weather Service · lists refresh hourly; the live map loads current alerts directly from the NWS
Active flood watches in New Hampshire
None right now. Other active alerts in New Hampshire: none.
Flood Watches in New Hampshire by year
New Hampshire averaged 8.9 flood watches per year from 2016 to 2025, and has had 5 so far in 2026. The most recent was issued on July 29, 2026.
Counties with the most flood watches
What a flood watch means
A flood watch means conditions are favorable for flooding, including flash flooding, in and near the watch area. Watches are issued ahead of heavy-rain events such as slow-moving storms, tropical systems and atmospheric rivers, often 12 to 48 hours in advance.
More about flood watches and the national map →
What to do
- Know whether your home, school or commute is in a flood-prone area.
- Clear gutters and storm drains near your home if it is safe.
- Plan a route to higher ground and keep your phone charged.