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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.

Flash Flood$500K damage

Cheshire, NH · Aug 10, 2003

For the second time in five days, roads in Westmoreland and surrounding towns were devastated by flash flooding after a series of torrential downpours.

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Flash Flood$34K damage

Cheshire, NH · Jul 17, 2021

During the evening of July 17th an area of low pressure slowly moved east along a stationary boundary that stretched from New York to Massachusetts.

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Flash Flood$34K damage

Sullivan, NH · Jul 29, 2021

A developing area of lower pressure crossed the state on the night of July 29th. Abundant moisture moved into the region ahead of this area of low pressure. Rain began by late afternoon on July 29th across the Connecticut River Valley.

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Flood$15K damage

Strafford, NH · Dec 23, 2022

Beginning on December 22nd a powerful storm was developing over the Ohio River Valley. On December 23rd the center of the storm was deepening rapidly (974mb) as it lifted through the eastern Great Lakes.

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Coastal Flood$300K damage

Coastal Rockingham, NH · Mar 3, 2018

Low pressure developed off the New Jersey coast (981mb), on March 2nd before rapidly intensifying well offshore on March 3rd (974mb), producing hurricane force wind gusts in the Gulf of Maine.

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Flash Flood$25K damage

Hillsborough, NH · Jul 18, 2021

During the evening of July 17th an area of low pressure slowly moved east along a stationary boundary that stretched from New York to Massachusetts.

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Flash Flood$25K damage

Hillsborough, NH · Jul 29, 2021

A developing area of lower pressure crossed the state on the night of July 29th. Abundant moisture moved into the region ahead of this area of low pressure. Rain began by late afternoon on July 29th across the Connecticut River Valley.

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Flash Flood$25K damage

Belknap, NH · Jul 30, 2021

A developing area of lower pressure crossed the state on the night of July 29th. Abundant moisture moved into the region ahead of this area of low pressure. Rain began by late afternoon on July 29th across the Connecticut River Valley.

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Coastal Flood$100K damage

Coastal Rockingham, NH · Jan 16, 2021

An area of low pressure intensified as it entered interior New England on January sixteenth with a 991mb surface low being observed. This produced storm force easterly wind gusts over the outer waters of the Gulf of Maine and 16 foot nearshore waves with a period of 8 seconds.

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Flash Flood$20K damage

Merrimack, NH · Jul 29, 2021

A developing area of lower pressure crossed the state on the night of July 29th. Abundant moisture moved into the region ahead of this area of low pressure. Rain began by late afternoon on July 29th across the Connecticut River Valley.

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Flash Flood$20K damage

Merrimack, NH · Jul 29, 2021

A developing area of lower pressure crossed the state on the night of July 29th. Abundant moisture moved into the region ahead of this area of low pressure. Rain began by late afternoon on July 29th across the Connecticut River Valley.

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Flash Flood$20K damage

Cheshire, NH · Jul 17, 2021

During the evening of July 17th an area of low pressure slowly moved east along a stationary boundary that stretched from New York to Massachusetts.

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Flash Flood$15K damage

Merrimack, NH · Jul 29, 2021

A developing area of lower pressure crossed the state on the night of July 29th. Abundant moisture moved into the region ahead of this area of low pressure. Rain began by late afternoon on July 29th across the Connecticut River Valley.

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Flash Flood$15K damage

Hillsborough, NH · Jul 29, 2021

A developing area of lower pressure crossed the state on the night of July 29th. Abundant moisture moved into the region ahead of this area of low pressure. Rain began by late afternoon on July 29th across the Connecticut River Valley.

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Flash Flood$335K 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$100K damage

Coastal Rockingham, NH · Mar 4, 2018

Low pressure developed off the New Jersey coast (981mb), on March 2nd before rapidly intensifying well offshore on March 3rd (974mb), producing hurricane force wind gusts in the Gulf of Maine.

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Coastal Flood$100K damage

Coastal Rockingham, NH · Mar 5, 2018

Low pressure developed off the New Jersey coast (981mb), on March 2nd before rapidly intensifying well offshore on March 3rd (974mb), producing hurricane force wind gusts in the Gulf of Maine.

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Coastal Flood$100K damage

Coastal Rockingham, NH · Mar 2, 2018

Low pressure developed off the New Jersey coast (981mb), on March 2nd before rapidly intensifying well offshore on March 3rd (974mb), producing hurricane force wind gusts in the Gulf of Maine.

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Coastal Flood$100K damage

Coastal Rockingham, NH · Mar 2, 2018

Low pressure developed off the New Jersey coast (981mb), on March 2nd before rapidly intensifying well offshore on March 3rd (974mb), producing hurricane force wind gusts in the Gulf of Maine.

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Flash Flood$10K damage

Cheshire, NH · Jul 17, 2021

During the evening of July 17th an area of low pressure slowly moved east along a stationary boundary that stretched from New York to Massachusetts.

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Flash Flood$10K damage

Cheshire, NH · Jul 29, 2021

A developing area of lower pressure crossed the state on the night of July 29th. Abundant moisture moved into the region ahead of this area of low pressure. Rain began by late afternoon on July 29th across the Connecticut River Valley.

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Flash Flood$10K damage

Hillsborough, NH · Jul 29, 2021

A developing area of lower pressure crossed the state on the night of July 29th. Abundant moisture moved into the region ahead of this area of low pressure. Rain began by late afternoon on July 29th across the Connecticut River Valley.

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Flash Flood$10K damage

Belknap, NH · Jul 29, 2021

A developing area of lower pressure crossed the state on the night of July 29th. Abundant moisture moved into the region ahead of this area of low pressure. Rain began by late afternoon on July 29th across the Connecticut River Valley.

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Flash Flood$10K damage

Hillsborough, NH · Jul 29, 2021

A developing area of lower pressure crossed the state on the night of July 29th. Abundant moisture moved into the region ahead of this area of low pressure. Rain began by late afternoon on July 29th across the Connecticut River Valley.

Read the full account →
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