576 first-hand accounts of flood events in New Hampshire, ranked by impact. Each is a NOAA-written narrative of the moment.
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 →Strong coastal low pressure resulted in 5 to 7 inches of rain and caused moderate flooding on the Suncook and Lamprey Rivers in southern New Hampshire. The Lamprey River at Newmarket remained in flood through the end of the month.
Read the full account →An area of slow moving showers and thunderstorms produced up to 6 inches of rain in 3 hours resulting in flash flooding in several towns in southeast New Hampshire. Numerous roads were inundated by small streams and many were washed out.
Read the full account →Low pressure developed over the Carolinas on March 13 and moved northeast spreading heavy rain over New England. Rainfall amounts ranged from 4 to 9 inches in southeast New Hampshire which caused serious flooding.
Read the full account →A stalled frontal boundary was the focus for thunderstorms producing very heavy rainfall on the afternoon of June 30th. 1 to 3 inches of rain fell in less than 3 hours causing rapid rises on streams in Sullivan, Merrimack, and Belknap Counties.
Read the full account →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 →Low pressure crossed Cape Cod and entered the Gulf of Maine on June 2nd. An upper low approaching from the west intensified this system on June 3rd before slowly exiting the Gulf of Maine on the 4th through the 5th.
Read the full account →Low pressure crossed Cape Cod and entered the Gulf of Maine on June 2nd. An upper low approaching from the west intensified this system on June 3rd before slowly exiting the Gulf of Maine on the 4th through the 5th.
Read the full account →A stationary front located along the Canadian border resulted in 2 to 3 inches of rain during the evening of April 26. The heaviest rain fell between 8 pm and midnight.
Read the full account →The highest astronomical tides of the month combined with a weak, but developing, area of low pressure (1000 mb) near Cape Cod to produce coastal flooding in coastal Rockingham County during the late evening hours of May 25th.
Read the full account →Low pressure developed south of New England and remained nearly stationary from the 12th to the 15th resulting in over 12 inches of rain in some locations in a 72 hour period. Homes and businesses were damaged extensively. Many roads were washed out and impassable.
Read the full account →Low pressure developed south of New England and remained nearly stationary from the 12th to the 15th resulting in over 12 inches of rain in some locations in a 72 hour period. Homes and businesses were damaged extensively. Many roads were washed out and impassable.
Read the full account →Hurricane Irene formed east of the Caribbean island of Dominica, part of the Lesser Antilles region, on the afternoon of August 20. Irene moved through the Caribbean and up the east coast of the United States making landfall twice.
Read the full account →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 →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 →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 →The region was experiencing well above normal temperatures, with high temperatures reaching the low to mid-90s. This created a very warm, humid, and unstable atmosphere.
Read the full account →The region was experiencing well above normal temperatures, with high temperatures reaching the low to mid-90s. This created a very warm, humid, and unstable atmosphere.
Read the full account →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 →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 →Three to eight inches of rain caused small rivers and streams to rise. Many roads were flooded and/or washed out. Campgrounds and some lakeside homes had to be evacuated.
Read the full account →Hurricane Sandy merged with a strong upper level trough approaching from the west just off the mid Atlantic coast. The resultant cut-off low caused Sandy to retrograde towards the southern New Jersey coast during the evening of October 29th as it rapidly intensified to 940 mb.
Read the full account →Three to eight inches of rain caused small rivers and streams to rise. Many roads were flooded and/or washed out. Campgrounds and some lakeside homes had to be evacuated.
Read the full account →A stationary front located through northern New Hampshire provided a focus for showers and thunderstorms to develop. Due to the slow movement and the training of the storms rainfall rates were high and resulted in flash flooding.
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