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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$50K damage

Carroll, NH · Jul 2, 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.

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Flash Flood$200K damage

Carroll, NH · Oct 30, 2017

Intense low pressure moving north through the Hudson Valley swept up the remains of tropical storm Philippe on the morning of the 30th. Strong southeast flow east of this system across New Hampshire enhanced rainfall on the eastern slopes of the White Mountains resulting in…

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Flash Flood$200K damage

Grafton, NH · Oct 30, 2017

Intense low pressure moving north through the Hudson Valley swept up the remains of tropical storm Philippe on the morning of the 30th. Strong southeast flow east of this system across New Hampshire enhanced rainfall on the eastern slopes of the White Mountains resulting in…

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Flash Flood$194K damage

Coos, NH · Oct 30, 2017

Intense low pressure moving north through the Hudson Valley swept up the remains of tropical storm Philippe on the morning of the 30th. Strong southeast flow east of this system across New Hampshire enhanced rainfall on the eastern slopes of the White Mountains resulting in…

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Flash Flood$45K damage

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.

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Flash Flood$50K damage

Cheshire, NH · Aug 17, 2018

An area of thunderstorms produced 2.5 to 4 inches of rain in less than 3 hours across portions of southwest New Hampshire. This caused flooding of streets and homes along with several road washouts.

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Flash Flood$25K damage

Carroll, NH · May 27, 2020

A warm and moist airmass for late May was in place across New Hampshire with localized thunderstorms developing over the mountainous terrain. A slow moving thunderstorm developed over Jackson, NH during the afternoon, with radar estimates of 3 to 5 of rain falling.

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Flash Flood$41K damage

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.

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Flash Flood$150K damage

Grafton, NH · Oct 30, 2017

Intense low pressure moving north through the Hudson Valley swept up the remains of tropical storm Philippe on the morning of the 30th. Strong southeast flow east of this system across New Hampshire enhanced rainfall on the eastern slopes of the White Mountains resulting in…

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Coastal Flood

Coastal Rockingham, NH · Sep 23, 2020

Hurricane Teddy underwent extra-tropical transition to a strong 951 mb storm well off shore in the Gulf of Maine before moving north north towards Halifax, Nova Scotia.

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Flash Flood$139K damage

Coos, NH · Oct 30, 2017

Intense low pressure moving north through the Hudson Valley swept up the remains of tropical storm Philippe on the morning of the 30th. Strong southeast flow east of this system across New Hampshire enhanced rainfall on the eastern slopes of the White Mountains resulting in…

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Flood$30K damage

Coos, NH · Apr 20, 2019

Melting snow combined with an inch of rainfall causing already swollen rivers in New Hampshire to rise above flood stage. Moderate flooding occurred along the Connecticut River at Dalton.

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Flash Flood$35K damage

Cheshire, NH · Aug 17, 2018

An area of thunderstorms produced 2.5 to 4 inches of rain in less than 3 hours across portions of southwest New Hampshire. This caused flooding of streets and homes along with several road washouts.

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Flash Flood$30K damage

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.

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Coastal Flood$250K damage

Coastal Rockingham, NH · Jan 3, 2014

A complex area of low pressure intensified as it slowly moved off the Mid Atlantic coastline on January 2nd. It continued to reorganize (975 mb) and move south of Cape Cod on the 3rd.

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Flash Flood$1.5M damage

Sullivan, NH · Jul 2, 2013

A very warm and humid air mass was in place over the region on the 2nd of July. Precipitable water values approaching 2 inches were common across the forecast area.

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Flash Flood$75K damage

Hillsborough, NH · Jul 17, 2018

A strong cold front was dropping south through the region on the morning of July 17th. Numerous severe thunderstorms developed ahead of the front over southern New Hampshire.

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Coastal Flood$5.0M damage

Coastal 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.

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Flash Flood$100K damage

Carroll, NH · Oct 30, 2017

Intense low pressure moving north through the Hudson Valley swept up the remains of tropical storm Philippe on the morning of the 30th. Strong southeast flow east of this system across New Hampshire enhanced rainfall on the eastern slopes of the White Mountains resulting in…

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Flash Flood$100K damage

Grafton, NH · Oct 30, 2017

Intense low pressure moving north through the Hudson Valley swept up the remains of tropical storm Philippe on the morning of the 30th. Strong southeast flow east of this system across New Hampshire enhanced rainfall on the eastern slopes of the White Mountains resulting in…

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Flash Flood$35K damage

Cheshire, NH · Jun 19, 2017

A very moist air mass was in place across the region on the afternoon of July 19th as a cold front approached from the west. Precipitable water values, which approached 2 inches, were 2 to 3 standard deviations above normal.

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Flash Flood$35K damage

Belknap, NH · Jun 19, 2017

A very moist air mass was in place across the region on the afternoon of July 19th as a cold front approached from the west. Precipitable water values, which approached 2 inches, were 2 to 3 standard deviations above normal.

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Flash Flood$10K damage

Carroll, NH · Jun 28, 2020

On the afternoon of June 28th, a warm front was draped across central New Hampshire. A very moist air mass was in place as thunderstorms begin to develop along this frontal boundary.

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Flash Flood$17K damage

Coos, 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.

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