Merrimack storm history

Increasing winds capsized a sailboat during a boat race on Lake Sunnapee, drowning the captain. The winds, estimated at 50 mph, were apparently associated with a thunderstorm gust front. (M59O)

Heavy rain caused county wide flooding of small rivers and streams in Merrimack County New Hampshire.

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 squalls arrived in the Merrimack Valley during the afternoon of the 4th. At 401 pm the Concord Municipal Airport reported visibility falling to 1/4 mile and winds gusting to 46 mph. The squalls lasted about 30 to 45 minutes before conditions improved. Snowfall amounts were g…

Snow overspread the Merrimack Valley on the morning of the 2nd. A nearly stationary band of snow set up over the upper part of the valley through the afternoon, with moderate to heavy snow at times. Snow tapered off late in the evening on the 2nd. Snowfall totals range from 6 to …

Merrimack County averaged 1.95 inches of precipitation in December, approximately 2.0 inches below normal, making it the 3rd driest July'December on record. Private well failures in Bow and Dunbarton escalated, with one local driller reporting over 25 calls daily in mid-December.…

Merrimack County averaged 2.17 inches of precipitation in November, approximately 2 inches below normal. The rainfall deficits carried over from summer grew near 6 inches, making it the 3rd driest stretch between July through November on record. The USDM on November 25th had 30% …

A severe thunderstorm dropped hail the size of quarters in a food store parking lot north of Manchester.

Severe thunderstorm wind gusts downed a large tree on a car in Hooksett.

Severe thunderstorm wind gusts downed a tree down onto wires and house on Deerfield Rd. in Allenstown.

Severe thunderstorm wind gusts downed trees and wires on west side of Henniker.

Merrimack County averaged 2.87 inches of precipitation in September, approximately an inch below normal. The rainfall deficits carried over from summer grew near 5 inches, making it the 2nd driest stretch between July through September on record. The USDM on September 30th had 10…

Large hail associated with a severe thunderstorm dropped hail the size of ping pong balls, shattering a car wind window in Hill.

Severe thunderstorm outflow winds downed a tree down onto a house in Hill.

Severe thunderstorm outflow winds downed trees and wires in Northfield.

A severe thunderstorm dropped hail the size of half dollars in Danbury.

Severe thunderstorm outflow winds downed wires as well as trees and large branches across Waukeena Lake Rd. and Sedgewick Rd. in Danbury.

Severe thunderstorm outflow winds downed trees and wires on US Route 4 and Ford Mill Rd. in Fords Crossing village.

In Henniker, highway and road management reported road damage from flooding along Bear Hill Road, Ray Road, Hemlock Corner Loop and parts of Dodge Hill Road due to heavy downpours dropping around 3 inches of rain on saturated soils.

Thunderstorms moved through the Henniker area on the afternoon of June, 6th. The storms were not severe in nature, but a few where strong with abundant lightning. A women who was outside at the time of the storm was struck by lighting near a vehicle. She was last reported in crit…

A severe thunderstorm dropped hail the size of quarters on Old Hopkinton Rd. in Hopkinton.

A severe thunderstorm dropped hail the size of quarters in North Sutton.

A severe thunderstorm dropped hail the size of quarters north of Boscawen.

A severe thunderstorm dropped hail the size of half dollars in Dunbarton.

A severe thunderstorm dropped hail the size of half dollars in Bow.

Severe thunderstorm outflow winds downed a few small trees down across Clement hill Rd. in Bow.

Severe thunderstorm outflow winds downed trees on NH Route 127 near Contoocook State Forest.

Locally heavy rain around 3 inches on saturated soils caused NH Route 103 and NH Route 127 to flood due to the Warner River coming out of its banks in Davisville.

Heavy rain up to 3 inches caused overland flooding along Pine Street in Contoocoook.

Heavy rain up to 3 inches caused overland flooding on Tyler and Gerish Rd. in Contoocook.

A line of thunderstorms associated with a cold front and area of surface low pressure pushed through the state of New Hampshire on Saturday evening. A line of storms reached Hooksett, New Hampshire around 9 PM EDT. A pedestrian walking outside was struck by lightning, suffering s…

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 …

Snow overspread parts of the Merrimack River Valley in the late afternoon and early evening of the 19th. A band of steady moderate snow developed and remained over the area into the early morning of the 20th. Snowfall totals ranged from 5 to 7 inches. Key Impacts: Heavy snow.

A severe thunderstorm dropped hail the size of of quarters in Henniker.

A server thunderstorm dropped hail the size of quarters on US. Highway 4 in Epson.

A server thunderstorm dropped hail the size of ping pong balls just west of Concord.

Severe thunderstorm wind gusts downed a few trees and large branches on Lake View Rd. west of Concord.

Severe thunderstorm outflow winds downed trees and wires on Frost Lane in Webster.

Severe thunderstorm outflow winds downed trees and wires in Chichester.

A severe thunderstorm dropped hail the size of quarters in Warner, New Hampshire.

Severe thunderstorm outflow wind gusts downed trees on wires on Briar Hill Rd in Warner.

Severe thunderstorm outflow wind gusts downed at least 6 trees on Poverty Plains Rd. in Warner.

Severe thunderstorm outflow wind gusts downed 3 to 4 trees on US 202 west of Concord between Hedgerows Ln. and Shenandoah Dr.