Alert archive / New Hampshire / River Flood Warnings in 2025

River Flood Warning 9, NWS Gray, ME

May 10, 2025Hillsborough County, New Hampshire

NWS Gray, ME issued this river flood warning at May 10, 2025, 10:08 AM EDT for Hillsborough County, New Hampshire. It took effect at May 10, 2025, 11:53 AM EDT. It was in force for 16 hr.

The area

The counties it named.

The facts

Issued
May 10, 2025, 10:08 AM EDT (14:08 UTC)
In effect from
May 10, 2025, 11:53 AM EDT
Expired
May 11, 2025, 3:36 AM EDT
In force
16 hr
Issued by
NWS Gray, ME
Area
Storm-based polygon
Flood severity
Minor

County Hillsborough County, NH

The radar

The Boston radar (KBOX), 117 km from the middle of the area, began a volume at 14:10 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The river

Written for the forecast point Piscataquog River at Goffstown (GFFN3). The gauge peaked at 9.30 ft at May 10, 2025, 3:00 PM EDT.

actionminormoderate681005/1005/1105/12
Action stage
7 ft
Minor stage
9 ft
Moderate stage
10 ft
Major stage
12 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 01091500, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.

The office that day

Everything else NWS Gray, ME issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 10, 11:09 AM EDTAreal Flood AdvisoryGYXCumberland3 hr
May 10, 11:31 AM EDTAreal Flood AdvisoryGYXAndroscoggin, Cumberland, Kennebec, Oxford, Sagadahoc2 hr
May 10, 6:45 AM EDTAreal Flood WarningGYXCheshire, Sullivan5 hr
May 10, 7:00 AM EDTRiver Flood WarningGYXBelknap, Merrimack48 hr
May 10, 7:20 AM EDTRiver Flood WarningGYXMerrimack29 hr
May 10, 7:27 AM EDTAreal Flood WarningGYXHillsborough, Merrimack, Rockingham4 hr
May 10, 10:09 AM EDTRiver Flood WarningGYXHillsborough105 min

Nearby

River Flood Warnings in New Hampshire, 2025Every river flood warning in 2025

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive; the gauge from the NWS water service and the USGS.