Sullivan storm history

State police reported that a tree fell on a vehicle while traveling on State Rte. 11 in Sunapee New Hampshire. The collision caused a single fatality of the vehicle driver.

A severe thunderstorm downed trees on Sugar River Drive and Chestnut Street in Claremont. a 24-year-old man was killed when a tree uprooted and fell on the car he was driving.

Acworth was the hardest hit community during the flash flooding on July 29th. Localized rainfall amounts on July 29th approached or exceeded 4.5 inches in less than six hours. Reports from FEMA and State Officials list 75% of the town's 29 roads were damaged. Multiple bridges wer…

Heavy rain from slow moving thunderstorms produced flash flooding in Claremont.

Precipitation began in the very early morning hours on the 29th, and began mainly as freezing rain except for a few spots that started as snow. The freezing rain was heaviest and accumulated most rapidly through the morning hours. It was around this time that trees and wires bega…

Snow overspread the Upper Valley on the morning of the 2nd. A nearly stationary band of snow set up over the southern part of Sullivan County through the afternoon, with moderate to heavy snow at times. Snow tapered off late in the evening on the 2nd. Snowfall totals range from 5…

Sullivan County averaged 2.02 inches of precipitation in December, approximately 1.4 inches below normal. Lake Sunapee remained at near-record winter lows, and the Sugar River saw flows drop to the 8th percentile. The USDM on December 30th had 52% of the county in Moderate Drough…

Sullivan County averaged 2.34 inches of precipitation in November, approximately an inch and a half below normal. The rainfall deficits carried over from summer grew over 5 inches, making it the 8th driest stretch between July through November on record. By mid-November, Sullivan…

Sullivan County averaged 3.12 inches of precipitation in September, approximately half an inch below normal. The rainfall deficits carried over from summer grew over 4 inches, making it the 4th driest stretch between July through September on record. The USDM on September 30th ha…

A severe thunderstorm outflow boundary downed a tree near New England Museum of Mines in Acworth.

A severe thunderstorm outflow boundary downed a tree on an old barn along NH123A near Forest Road near Alstead.

Severe thunderstorm outflow winds downed 2 trees down on NH-12A, partially blocking a road in Cornish.

Severe thunderstorm outflow winds downed numerous smaller trees and branches on Cornish Stage Rd. and Cornish Flats.

Long duration mixed precipitation event impacted the region from the 29th through the early morning hours of the 31st. A stationary boundary was a focus area for waves of precipitation through this period. Snow overspread the area on the 29th before transitioning to sleet and fre…

Light snow overspread the area in the evening on the 15th. This continued into the morning of the 16th when an area of strong warm air advection resulted in a laterally translating band of moderate to heavy snow. This swept through the region by the afternoon of the 16th. Periods…

Snow overspread the area in the late evening on the 8th. Strong warm air advection resulted in a broad area of snow, but embedded within that area of precipitation a relatively narrow band of occasionally heavy snow developed. A very deep snow growth zone also led to a prolonged …

While snow began early in the morning on the 28th, snowfall rates picked up late morning through late afternoon. Snowfall rates where one inch per hour at times, especially once you got out of the lower elevations of the Connecticut River Valley. Snow was heavy and wet, clinging …

Severe thunderstorm outflow winds downed multiple trees blocking Grissom Lane in Claremont, NH.

Severe thunderstorm outflow winds downed numerous trees throughout Claremont.

Severe thunderstorm outflow winds downed several trees and stripped material off a commercial building on Clark Drive in Claremont.

Severe thunderstorm outflow winds downed trees on Plains Rd. in West Claremont.

Severe thunderstorm outflow winds downed a tree blocking NH Route 12 in Charleston, NH.

Severe thunderstorm outflow winds downed multiple trees along Highway 120 in Meriden, NH.

Severe thunderstorm outflow winds downed trees and wires on Rt. 12Z in Plainfield, NH.

A severe thunderstorm dropped half dollar size hail south of Charlestown, NH.

Outflow wind gusts from a severe thunderstorm downed a tree that caused blocked traffic south of Lempster.

Snow overspread the area during the evening of the 3rd, heavy at times overnight into the morning of the 4th. The Connecticut River Valley was far enough west to be well into the colder portions of the storm, but given the late season winter event temperatures were marginal at ti…

Snowfall rates in excess of 1 inch per hour in the morning led to snowfall totals ranging between 14 and 22 inches.

Snow squalls arrived in the Connecticut River Valley during the afternoon on the 14th. The Springfield webcam on I-89 observed visibility of one quarter mile with quick, light accumulations on the highway. The squalls lasted about 20 minutes at any given location before condition…

Light to moderate snow began late in the evening on the 6th. Several rounds of moderate to heavy snow occurred through the event, one early in the morning on the 7th with the initial mesoscale warm advection band, and a second late in the morning as deformation forcing increased …

An un-named tributary to the Sugar River flows from south to north out of Hubbard Hill came out of banks on the 8th. Floodwaters damaged the intersection of Roberts Road and Borough Road. An unofficial weather station in the community measured over 2 and a half inches, with insta…

Severe thunderstorm outflow wind gusts downed numerous trees and wires in the eastern side of Claremont, NH.

A severe thunderstorm dropped hail the size of half dollars in Claremont, New Hampshire.

In Claremont, rapid run-off from a thunderstorms caused the Quabbinnight Brook to overflow that washed out a portion of Chestnut Street.

Quabbinnight Brook overflowed onto Minkler Road at the intersection of Chestnut Street. Photos show undermining of the road.

A severe thunderstorm dropped hail the size of ping pongs south of Claremont, New Hampshire.

A severe thunderstorm dropped hail the size of half dollars in Claremont, New Hampshire.

Convective outflow winds from a severe thunderstorm downed trees south of Claremont, New Hampshire.

Convective outflow winds from a severe thunderstorm downed multiple trees on North Pinkham Rr. between Unity and Lempster New Hampshire.

Convective outflow winds from a severe thunderstorm downed numerous trees in the town of Gantham along Interstate 89.

Severe thunderstorm outflow winds downed multiple trees on Jarvis Hill Rd.

Lake Sunapee reached a record level for summer resulting in floodings of lakeshore properties. Outbuildings and docks were impacted by floodwaters.

Heavy rain during the afternoon of the 9th caused overnight flooding of the Great Brook in Langdon. The Brook flooded Old Stage Road.

Multiple rounds of heavy rain caused a washout on Currier Road in Langdon on the afternoon of the 10th. Rainfall that afternoon was estimated between 1 to 2 inches, however saturated ground and recent heavy rain contributed to the severity of the flooding.

The Sugar River overflowed its banks between the 10th-11th. The flood stage for the USGS river gage at Claremont has a flood stage of 7.0 feet, and on the 11th the river crested at 8.49 feet. A campground in Newport was inundated by floodwaters. Corbin Road from NH10 to the cover…

The Cold River came out of banks on the evening of the 10th following heavy rains. The river had been running high due to multiple rounds of heavy rain over the previous few days. After approximately 1 to 3 inches of additional rain that afternoon, the river spiked to the second …

Flooding on Long Pond and Lempster Mountain Road in Lempster caused by overflow of the headwaters of the Ashuelot River.

Lake Sunapee reached a record highest level for the time of year in July. Water releases from the lake into the Sugar River caused flooding on Brook Road between Natures Way and NH RT 103. Other roads flooded include Reeds Mill Road from Old Springfield Road to NH103.