Knox storm history

The astronomical tide in Portland was 11.2 feet (MLLW) at 1205 pm. Flood stage is 12 feet (MLLW). The gale to storm force onshore winds produced a storm surge of 3.37 feet in Portland Harbor. The resulting storm tide topped out at 14.57 feet (MLLW) in the Forest City with the tid…

An intense and rapidly deepening area of low pressure over the Great Lakes region (975 mb) combined with modestly high astronomical tides to produce the third highest storm tide ever in Portland (records 1912-present). Further up the Maine coast the storm surge was slightly highe…

An intense and rapidly deepening area of low pressure over the Great Lakes region (975 mb) combined with modestly high astronomical tides to produce the third highest storm tide ever in Portland (records 1912-present). Further up the Maine coast the storm surge was slightly highe…

Heavy rain with reports up to 6.5 inches fell in a short period of time lead to excessive run-off with numerous roads closed and damaged due to flooding in Knox County. The towns that were hardest hit included Appleton, Camden, Hope, Rockland, Rockport and Thomaston.

Snow overspread the area on the evening of the 23rd as a warm front approached northern New England. In the late evening stronger lift arrived and snow became moderate to heavy at times through the morning of the 24th. Light snow lingered until the afternoon before tapering off. …

Snow overspread the Midcoast on the morning of the 2nd. Warmer air near the coast delayed the onset of accumulating snow, but steady light to moderate snow picked up in the afternoon and continued into the evening. The evening commute on the 2nd was particularly hazardous. Snow t…

Knox County averaged 2.41 inches of precipitation in December, approximately 1.5 inches below normal. This contributed to the 4th driest July'December stretch on record. By late December, the county was entrenched in Severe (D2) and Extreme (D3) drought conditions, with the USDM …

Knox County averaged 2.82 inches of precipitation in November, approximately an inch below normal. The rainfall deficits carried over from summer grew over 6 inches, making it the 4th driest stretch between July through November on record. By mid-November, the county was experien…

Knox County averaged 2.59 inches of precipitation in September, approximately an inch below normal. The rainfall deficits carried over from summer grew near 5 inches, making it the 6th driest stretch between July through September on record. The USDM on September 30th had 84% of …

Drought conditions developed across Maine in the summer of 2025. According to the August 26th, 2025 release of the United States Drought Monitor, 11% of Maine was experiencing Severe Drought, 62% was experiencing Moderate Drought and 87% was abnormally dry. Maine experienced a ra…

Light snow overspread the area in the late 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. Pe…

Snow overspread Midcoast Maine in the 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.

Severe thunderstorm outflow winds downed a tree onto lines that blocked one lane of traffic Thomaston.

Severe thunderstorm outflow winds downed trees and wires in Union, ME.

Severe thunderstorm outflow winds downed trees and wires in Warren, ME. A tree also feel onto a home.

Two road washouts with pavement buckled in downtown Camden. Other flooded roads within the community after more than 2 inches of rain fell from a slow-moving thunderstorm.

Heavy rain cause excessive runoff along high terrain near Stickney Corner, flooding one lane of Route 220.

Precipitation began during the evening of the 3rd in a warm environment, hostile to snowfall. Light rain or rain/snow mix eventually changed to snow as dynamic cooling from melting aloft occurred in heavy precipitation. Snowfall became heavy at times overnight into the morning of…

Snowfall rates in excess of 1 inch per hour in the morning led to snowfall totals ranging between 3 and 5 inches. Around 200 PM snow changed to freezing rain and began to rapidly accumulate near sunset. With around 0.75 inches glaze, power outages increased quickly after 800 PM, …

Heavy rainfall and excessive run-off caused Wiley Brook to flood Route 105 in Hope south of High Street.

Snow squalls arrived at the Midcoast during the late afternoon on the 17th. The Knox County Regional Airport reported visibility dropping to one quarter mile and winds gusting to 25 mph. The squalls lasted about 20 minutes at any given location before conditions improved. Snowfal…

East of a deep low pressure in the eastern Great Lakes a strong low level jet developed. Deep, fresh snow cover across the interior prevented the strong winds from penetrating too far inland, but along the coast damaging wind gusts began very early in the morning on the 10th. The…

Light to moderate snow began early in the morning on the 7th. Snow was occasionally heavy at times, but a heavy mesoscale snowband never quite made it north into the Midcoast. Snow ended quickly once surface winds veered to northwesterly. Snowfall totals ranged from 6 to 10 inche…

Strong southeast wind gusts began the morning of the 18th. While wind gusts remained strong throughout the day, the damaging gusts occurred in several waves in the morning, again at midday, and once more in the evening. The Knox County Regional Airport recorded a peak gust of 52 …

Minor impacts were reported for Post-Tropical Cyclone Lee. No inundation flooding was reported, but there was high surf on the Saturday midday high tide cycle as long period 10 to 11 foot swells reached the coast. This caused some minor splash-over and erosion in isolated areas. …

Rounds of heavy rainfall resulted in flooding of small streams in Washington. The Little Medomack Brook washout out part of Calderwood Road and Davis Stream flooded Varner road.

Widespread and numerous flooded roads across Knox County. Coastal flooding was concurrent with the heavy rainfall and increased the impacts. Roads that were flooded include Route 1 in Camden, Route 105 in Hope and Washington, Route 126 in Jefferson, and Route 131 near Campground …

Rain changed to snow near Penobscot Bay around midday on the 14th. While snow struggled to accumulate at lower elevations during the first half of the day, as the sun angle got lower in the afternoon snowfall rates became moderate to heavy at times. Snowfall also remained more pe…

Snow overspread the Midcoast early on the morning of the 4th. Snowfall quickly became moderate to heavy through the early afternoon hours. Snow quickly came to an end during the evening as low pressure moved into the northwest Atlantic and flow become more northwesterly, downslop…

Light snow began after midnight on the 28th. Snow became moderate at times around sunrise and again during midday. Otherwise snow remained light and tapered off in the late evening, coming to an end from northwest to southeast. Snowfall totals ranged from 6 to 9 inches.

By the late afternoon on the 3rd wind chills were reaching -30 degrees. Ambient air temperatures continued to fall into the double digits below zero with winds gusting in excess of 35 mph. The coldest wind chill values approached -45 degrees early on the 4th before winds graduall…

Snow melt and rainfall amounts of 1.5-3 led to rapid run-off that swelled local streams and rivers to above bank full. Minor road flooding was reported in Knox County with up to 18 of water flowing of Barnestown Road near the intersections of Hosmer Pond Road in the hilly terrain…

Snow began during the evening of the 22nd. Snowfall became moderate at times during the morning of the 23rd. The Midcoast remained just south of a mesoscale band of snow that was nearly stationary through the day. Snowfall had a high snow to liquid ratio, and fell at an inch per …

Snow overspread Midcoast Maine late in the evening on the 19th. After midnight snow became moderate at times. Snowfall rates tapered off gradually through the as lift became tied more closely with an inverted trough draped over southern New Hampshire. Snow ended during the aftern…

Parts of the Midcoast experienced two periods of strong to damaging winds. One during the morning hours of the 23rd generally had wind gusts in the 40 to 50 mph range. A second during the afternoon and evening featured wind gusts of 60 to 65 mph. Numerous trees and wires were rep…

The morning of December 23rd had perfect alignment of a very high astronomical tide, peak storm surge of 2+ feet and large battering nearshore waves of 15 to 20 feet all coinciding at high tide. The astronomical tide in Portland was 11.3 feet MLLW at 10:16 am, already close to th…

Large tree down on road that caused a car accident.

A severe thunderstorm outflow winds downed trees and wires in Saint George, Maine.

Snow overspread the Mid-coast region of Maine just after midnight on March 3rd. Snow started off light before a localized heavier snowband developed towards the early morning hours across interior Lincoln County and Knox Counties. Moderate to heavy snowfall fell in this band befo…

Snow squalls crossed the Midcoast between 7:00 pm and 8:00 pm. The Knox County Regional Airport observed a visibility of 1/4 mile and a wind gust of 33 knots at 7:56 pm.

Snow overspread the Midcoast early in the morning on the 25th. A hybrid type snow band pushed through the area then gradually transitioned into a laterally quasi-stationary band which slid back through the area around midday. Moderate to heavy snowfall resulted from the hybrid ba…

Light snow began on the morning of the 29th, with the intensity of snowfall picking up after daybreak. An intense band of snow developed around mid morning over southern New England and remained mostly over the Gulf of Maine until midday. The band backed into coastal and Midcoast…

Heavy rain with up to 5 inches being reported led to reports of road flooding on Route 17 in Hope along with several other town roads being closed and impassable.

Heavy rain with up to 5 inches caused numerous roads to flood in Appleton with road damage being recorded.

Severe thunderstorm outflow winds downed a few trees in Cushing, one of which blocked traffic on River Road. A nearby observation recorded a wind gust of 51 mph.

Multiple photos and videos via social media showing low hanging rotating wall cloud and funnel cloud just north of Hope, ME. Feature was associated with a well organized super cell, no confirmation of a tornado was found with this storm.

Snow moved into the area on the evening of the 31st and continued through the morning hours on the 2nd. The bulk of the accumulation came with moderate to heavy snow in the mesoscale snow band as it moved north through western Maine. Snow continued into the evening in waves as ad…

Snow began after sunrise on the 17th. Snow quickly became moderate to heavy as an intense band of snow moved towards the area. While the band became nearly stationary just offshore, snowfall was still occasionally heavy at times. A weakening trough aloft quickly brought an end to…