Flood Advisory — Coos County, New Hampshire
Minor flooding is expected — not severe enough for a warning, but potentially inconvenient or hazardous for travel.
Current Status
🌊 Active: Flood Advisory
Flood Advisory issued August 8 at 4:30PM EDT until August 8 at 7:30PM EDT by NWS Gray ME
* WHAT...Flooding caused by excessive rainfall is expected. * WHERE...A portion of northern New Hampshire, including the following county, Coos. * WHEN...Until 730 PM EDT. * IMPACTS...Minor flooding in low-lying and poor drainage areas. Water over roadways. * ADDITIONAL DETAILS... - At 430 PM EDT, gauge reports indicated heavy rain due to thunderstorms. Minor flooding is ongoing or expected to begin shortly in the advisory area. Between 1.5 and 2 inches of rain have fallen. - Additional rainfall amounts of 0.5 to 1 inch are expected over the area. This additional rain will result in minor flooding. - Some locations that will experience flooding include... Gorham, Jefferson and Randolph.
Effective August 8, 2026 at 4:30 PM ET · Expires August 8, 2026 at 7:30 PM ET
Event Details
Event Type
Flood Advisory
Severity
minor
Issued By
NWS Gray ME
Expires
August 8, 2026 at 7:30 PM ET
Last Checked
3 hours ago
What To Do
📋 Official NWS Guidance
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Flooding is occurring or is imminent. It is important to know where you are relative to streams, rivers, or creeks which can become killers in heavy rains. Campers and hikers should avoid streams or creeks.
Other Active Alerts in New Hampshire
Flash Flood Warning
Severe Thunderstorm Warning
Severe Thunderstorm Warning
Flood Advisory
Get Flood Advisory Alerts for Coos County
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Frequently Asked Questions
What does a Flood Advisory mean for Coos County, New Hampshire?
Minor flooding is expected — not severe enough for a warning, but potentially inconvenient or hazardous for travel.
Is this Flood Advisory currently active?
Yes — this alert is active as of our last check (3 hours ago). It's set to expire August 8, 2026 at 7:30 PM ET.
How do I get notified about Flood Advisory alerts for Coos County?
Download StormCast free on Google Play and set Coos County, New Hampshire as one of your monitored locations. StormCast checks the NWS feed continuously and pushes alerts like this directly to your phone — even with the screen off.