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Coos County, New Hampshire
Tornadoes, hail, floods and severe storms recorded here between 1955 and 2026, from NOAA's Storm Events Database. Search an address to see which tornadoes came closest to it.
8
Tornado reports
62
Hail reports
111
Floods since 1996
364
All events
2
Deaths
$14.9M
Property damage
Tornado paths in Coos County
The part of each tornado’s path NOAA recorded in this county, 7 in all. Zoom in and the paths widen to their surveyed width.
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Year by year
All storm eventsTornadoes
NOAA's storm database records tornadoes back to 1950 and hail and thunderstorm wind back to 1955, but floods only from 1996 on. Older floods are missing here. For those, the U.S. Geological Survey's stream gauge records and flood reports are the place to look.
Most significant events
The strongest tornadoes, deadliest events and biggest damage here, up to 50.
Gusty winds from a severe thunderstorm toppled and snapped trees along the Connecticut River and caused a circus tent to collapse at the Lancaster Fairgrounds. About 100 people were under the tent at the time it collapsed. A 41-year-old man and his 6-year-old daughter were killed…
Heavy rain and snow melt caused flooding on small rivers and streams in Columbia. A bridge spanning Lyman Brook was destroyed isolating an entire neighborhood until a temporary structure could be installed.
Heavy rain from Tropical Storm Irene caused series flash flooding in Gorham with damage to infrastructure estimated at 6.5 million dollars.
Hail Hail
A severe thunderstorm dropped hail the size of quarters in Groveton, near US Highway 3.
Hail Hail
A severe thunderstorm dropped hail the size of golf balls in Dummer, NH.
Thunderstorm Wind Thunderstorm Wind
Severe thunderstorm outflow winds downed trees along Route 16 in Dummer, NH.
Thunderstorm Wind Thunderstorm Wind
Severe thunderstorm outflow winds downed two large trees north of Fires Connecticut Lake close to U.S. route through in Pittsburg.
Hail Hail
A severe thunderstorm dropped hail the size of quarters to half dollars in Stratford, NH.
Thunderstorm Wind Thunderstorm Wind
Severe thunderstorm wind gusts downed trees and wires on Fish Pond Road.
Thunderstorm Wind Thunderstorm Wind
Severe thunderstorm wind gusts downed trees and wires on Titus Hill Road.
Thunderstorm Wind Thunderstorm Wind
Severe thunderstorm wind gusts downed a few trees near Connolly Cabins Campground.
Flash Flood Flash Flood
The Perry Stream caused washouts on Perry Stream Road in Pittsburg following heavy rainfall.
Flash Flood Flash Flood
Washout on Camp Otter Road in Pittsburg from heavy rainfall.
Flash Flood Flash Flood
Washout on Hall Stream Road in Pittsburg from heavy rainfall.
Flash Flood Flash Flood
Washout on Diamond Pond Road near Route 26 at an old dam that was under construction from the Mohawk River.
Flash Flood Flash Flood
Jericho Mountain State Park was forced to close due to severe flooding along park roads.
Flash Flood Flash Flood
Flooding and washout on NH-135 or Knot Hole Road in Whitefield.
Flash Flood Flash Flood
Route 16 or Riverside Drive in Berlin closed near Tamarack Lane from runoff flooding.
Flash Flood Flash Flood
Car trapped in flood waters, Dalton Road is completely flooded out.
Flash Flood Flash Flood
Multiple washouts on Big Hill Road in Dalton.
Flash Flood Flash Flood
Cummings Brook flooded Lost Nation Road at Rae Road.
Flash Flood Flash Flood
Miller Road from Team O'Neil to Harriman Roads washed out.
Flash Flood Flash Flood
Multiple washouts on Simonds Road from unnamed stream.
Flash Flood Flash Flood
Main thruway Route 135 closed due to flooding from Harriman Road to Blakslee Road.
Flash Flood Flash Flood
Washout on Comeau Road at Route 135 in Dalton.
Flash Flood Flash Flood
All lanes NH 110 east closed at St Laurent Ln. due to flooding.
Flash Flood Flash Flood
US 3 all lanes closed between Reed Rd and Mary Elizabeth Ln. due to flooding.
Flash Flood Flash Flood
Flooding on NH-142 in Dalton from Hall Road to French Road.
Flash Flood Flash Flood
Full closure of Route 135 due to flooding near Buffalo Road to Hoopers Drive in Lancaster.
Flash Flood Flash Flood
Washout on Kimball Hill Road in Whitefield following heavy rainfall estimated around 2.5 inches.
Thunderstorm Wind Thunderstorm Wind
Severe thunderstorm outflow winds downed numerous trees south of Berlin, NH.
Thunderstorm Wind Thunderstorm Wind
Severe thunderstorm outflow winds downed four trees at the Mt. Washington Auto Rd.
Hail Hail
A severe thunderstorm dropped hail the size of half dollars on NH 110 east of Groveton.
Thunderstorm Wind Thunderstorm Wind
Severe thunderstorm outflow winds downed a couple of trees along HWY 110 east of Groveton.
Flood Flood
Heavy rain combined with snowmelt caused significant runoff from the Presidential Mountain Range including portions of the Androscoggin River in Gorham. Thanks in part to dam controls on this portion of the Androscoggin River, the river only reached minor flood stage. The river g…
Flash Flood Flash Flood
Major flooding of the Moose River with an estimated rain and snowmelt between 8 and 9 inches of liquid runoff. The resultant flow was estimated around 6500 CFS, which is greater than the 0.2% annual exceedance level, or 500 year flood. The river overflowed its banks surrounding h…
Flash Flood Flash Flood
Major flooding of the Moose Brook with an estimated rain and snowmelt between 8 and 9 inches in runoff. The resultant flow is estimated over a 0.2% recurrence interval with flows between 3 and 4 kcfs. The most severe damages were near Pike Industries in Gorham, which suffered a w…
Flash Flood Flash Flood
Heavy rain and rapid snowmelt produced around 9 inches of combined runoff. All small streams in the Presidential Range region exceeded their banks. This was true in Jefferson, New Hampshire where numerous small streams flooded Route 115 and Route 2, causing these roads to be clos…
Flood Flood
Heavy rain and rapid snowmelt combined with steep terrain to produce rapid runoff. The resulting runoff over frozen ground caused flooding and the closure of Route 26 between Errol and the Maine stateline.
Flash Flood Flash Flood
Significant damage occurred on the Peabody River on December 18th following a heavy rain and rapid snowmelt event. The USGS river gage in Gorham went from under 100 cfs around midnight, to over 13,000 cfs by noon. The streamflows were estimated to be around the 1% annual exceedan…
Hail Hail
A severe thunderstorm dropped hail the size of quarters in Pittsburg New Hampshire.
Hail Hail
A severe thunderstorm dropped hail the size of quarters in the Clarksville Area on Old Canaan Rd in Pittsburg, New Hampshire.
Flash Flood Flash Flood
Zealand River came out of banks resulting in evacuations at an adjacent campground after Zealand Road flooded.
Flash Flood Flash Flood
Heavy rain caused the Tuttle Brook to come out of banks and cause some minor damage to the Recreational Area off Lake Road.
Flash Flood Flash Flood
Heavy rain caused a washout on Cates Hill Road.
Flash Flood Flash Flood
Heavy rain caused a washout on Corser Brook Road in Errol.
Hail Hail
A severe thunderstorm dropped ping pong size hail in the Errol area last last close to 8 minutes.
Thunderstorm Wind Thunderstorm Wind
Severe thunderstorm outflow winds downed a tree and powerlines across Dalton Rd. in Dalton.
Flash Flood Flash Flood
Heavy rain over saturated ground caused a washout to the southbound lane of US-3 at mile 227.4 in Pittsburg.
Flood Flood
Jefferson Road flooded with one lane closed due to heavy rain on the afternoon of the 10th.
Events by year, as a table
| Year | Events | Tornadoes |
|---|---|---|
| 2026 | 3 | 0 |
| 2025 | 1 | 0 |
| 2024 | 27 | 0 |
| 2023 | 18 | 0 |
| 2022 | 16 | 0 |
| 2021 | 6 | 0 |
| 2020 | 9 | 0 |
| 2019 | 10 | 0 |
| 2018 | 15 | 0 |
| 2017 | 18 | 0 |
| 2016 | 10 | 1 |
| 2015 | 13 | 0 |
| 2014 | 15 | 0 |
| 2013 | 18 | 0 |
| 2012 | 2 | 0 |
| 2011 | 52 | 1 |
| 2010 | 8 | 1 |
| 2009 | 4 | 0 |
| 2008 | 6 | 0 |
| 2007 | 6 | 0 |
| 2006 | 13 | 0 |
| 2005 | 1 | 0 |
| 2004 | 6 | 0 |
| 2002 | 8 | 0 |
| 2001 | 2 | 0 |
| 2000 | 4 | 0 |
| 1999 | 14 | 0 |
| 1998 | 6 | 0 |
| 1996 | 5 | 0 |
| 1994 | 4 | 1 |
| 1993 | 2 | 0 |
| 1991 | 1 | 0 |
| 1990 | 3 | 0 |
| 1988 | 6 | 0 |
| 1986 | 9 | 0 |
| 1983 | 5 | 0 |
| 1981 | 1 | 0 |
| 1980 | 1 | 1 |
| 1979 | 2 | 0 |
| 1978 | 1 | 0 |
| 1976 | 2 | 0 |
| 1975 | 1 | 0 |
| 1974 | 3 | 1 |
| 1973 | 1 | 0 |
| 1970 | 1 | 0 |
| 1966 | 1 | 1 |
| 1964 | 1 | 0 |
| 1962 | 1 | 0 |
| 1956 | 1 | 1 |
| 1955 | 1 | 0 |
Search your address
See every tornado that passed within 25 miles of a place in Coos County, measured to its path.
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