FloodZoneMap.org

New Hampshire Flood Stories

576 first-hand accounts of flood events in New Hampshire, ranked by impact. Each is a NOAA-written narrative of the moment.

Flood$1.2M damage

Carroll, NH · Apr 16, 2007

Overview: An area of low pressure intensified rapidly as it moved slowly from the southeastern United States on the morning of Sunday, April 15th to near New York City by the morning of Monday, April 16th.

Read the full account →
Flash Flood$25K damage

Coos, NH · Jul 13, 2015

A very weak upper air pattern was in place over the region on the afternoon of July 13th. Slow moving thunderstorms formed in the vicinity of a weak frontal boundary resulting in heavy rain and flash flooding in northern New Hampshire.

Read the full account →
Flash Flood

Grafton, NH · Jul 1, 2017

A very strong shortwave and associated cold front were approaching from the west on the morning of July 1st. Ahead of the front, a very warm and moist air mass was in place over New England with values of precipitable water around 2 inches.

Read the full account →
Flash Flood$3.0M damage

Grafton, NH · Aug 28, 2011

Tropical Storm Irene moved north through central and western New England bringing wind and very heavy rain to New Hampshire. This resulted in flash flooding on small rivers and streams in the mountains and flooding of small rivers and streams as well as main stem rivers farther…

Read the full account →
Flood$1.0M damage

Belknap, NH · Oct 8, 2005

The interaction between a cold frontal boundary and the remnants of Tropical Storm Tammy resulted in tremendous amount of rainfall throughout most of central and southern New Hampshire.

Read the full account →
Flood$1.0M damage

Merrimack, NH · Oct 8, 2005

The interaction between a cold frontal boundary and the remnants of Tropical Storm Tammy resulted in tremendous amount of rainfall throughout most of central and southern New Hampshire.

Read the full account →
Flood$1.0M damage

Rockingham, NH · Apr 16, 2007

Overview: An area of low pressure intensified rapidly as it moved slowly from the southeastern United States on the morning of Sunday, April 15th to near New York City by the morning of Monday, April 16th.

Read the full account →
Flood$1.0M damage

Merrimack, NH · Apr 16, 2007

Overview: An area of low pressure intensified rapidly as it moved slowly from the southeastern United States on the morning of Sunday, April 15th to near New York City by the morning of Monday, April 16th.

Read the full account →
Flood$1.0M damage

Strafford, NH · Apr 16, 2007

Overview: An area of low pressure intensified rapidly as it moved slowly from the southeastern United States on the morning of Sunday, April 15th to near New York City by the morning of Monday, April 16th.

Read the full account →
Flash Flood

Grafton, NH · Jul 1, 2017

A very strong shortwave and associated cold front were approaching from the west on the morning of July 1st. Ahead of the front, a very warm and moist air mass was in place over New England with values of precipitable water around 2 inches.

Read the full account →
Flash Flood

Grafton, NH · Jul 1, 2017

A very strong shortwave and associated cold front were approaching from the west on the morning of July 1st. Ahead of the front, a very warm and moist air mass was in place over New England with values of precipitable water around 2 inches.

Read the full account →
Flood

Grafton, NH · Jul 1, 2017

A very strong shortwave and associated cold front were approaching from the west on the morning of July 1st. Ahead of the front, a very warm and moist air mass was in place over New England with values of precipitable water around 2 inches.

Read the full account →
Flood$900K damage

Grafton, NH · Apr 16, 2007

Overview: An area of low pressure intensified rapidly as it moved slowly from the southeastern United States on the morning of Sunday, April 15th to near New York City by the morning of Monday, April 16th.

Read the full account →
Flash Flood$2.4M damage

Carroll, NH · Aug 28, 2011

Tropical Storm Irene moved north through central and western New England bringing wind and very heavy rain to New Hampshire. This resulted in flash flooding on small rivers and streams in the mountains and flooding of small rivers and streams as well as main stem rivers farther…

Read the full account →
Flood$800K damage

Sullivan, NH · Apr 16, 2007

Overview: An area of low pressure intensified rapidly as it moved slowly from the southeastern United States on the morning of Sunday, April 15th to near New York City by the morning of Monday, April 16th.

Read the full account →
Flash Flood$20K damage

Carroll, NH · Aug 7, 2019

Thunderstorms developed near the Massachusetts - New Hampshire border during the afternoon hours of the 7th and then moved northward across southern New Hampshire.

Read the full account →
Flood$4.2M damage

Rockingham, NH · Feb 25, 2010

Strong coastal low pressure produced rainfall of 5 to 8 inches resulting in county wide flooding of small rivers and streams across numerous counties in New Hampshire. Road washouts were widespread with major damage occurring to roadways. Homes and businesses were also flooded.

Read the full account →
Flash Flood$750K damage

Hillsborough, NH · Sep 6, 2008

Tropical Storm Hanna made landfall near the North Carolina/South Carolina border at 320AM EDT September 6. Hanna then moved north/northeast across the Mid-Atlantic states and southern New England September 6 and 7.

Read the full account →
Flash Flood

Grafton, NH · Jul 1, 2017

A very strong shortwave and associated cold front were approaching from the west on the morning of July 1st. Ahead of the front, a very warm and moist air mass was in place over New England with values of precipitable water around 2 inches.

Read the full account →
Flood$700K damage

Coos, NH · Apr 16, 2007

Overview: An area of low pressure intensified rapidly as it moved slowly from the southeastern United States on the morning of Sunday, April 15th to near New York City by the morning of Monday, April 16th.

Read the full account →
Flood$700K damage

Belknap, NH · Apr 16, 2007

Overview: An area of low pressure intensified rapidly as it moved slowly from the southeastern United States on the morning of Sunday, April 15th to near New York City by the morning of Monday, April 16th.

Read the full account →
Coastal Flood$35K damage

Coastal Rockingham, NH · May 25, 2017

A weak area of low pressure slowly intensified as it moved toward Nantucket Island on the evening of May 25th. Ahead of the system, an east-northeasterly wind of 30 to 35 knots developed over the coastal waters, before diminishing near the time of high tide.

Read the full account →
Flash Flood$640K damage

Hillsborough, NH · Aug 22, 2009

Hurricane Bill developed into a tropical depression over the eastern Atlantic on August 15, 2009. Bill then strengthened into a hurricane over the next week, passing well to the east of Nantucket, August 22-23.

Read the full account →
Coastal Flood$30K damage

Coastal Rockingham, NH · Jan 27, 2015

Low pressure moved to the Mid Atlantic coastline during the early morning hours of January 27th and rapidly intensified into an intense storm as it moved northeast off the New England coast.

Read the full account →
← PreviousPage 7 of 24Next →

View New Hampshire flood zone data →