Northern Coos storm history

Coos County averaged 2.45 inches of precipitation in December, approximately 0.7 inches below normal. Snowfall in the White Mountains expanded to near normal depths, but deep groundwater sources saw minimal to no recharge. The USDM on December 30th had 88% of the county in Severe…

Coos County averaged 3.3 inches of precipitation in November, approximately half an inch below normal. The rainfall deficits carried over from summer grew over 6 inches, making it the 3rd driest stretch between June through November on record. The USDM on November 25th had 91% of…

Coos County averaged 2.17 inches of precipitation in September, approximately 2 inches below normal. The rainfall deficits carried over from summer grew near 6 inches, making it the driest stretch between June through September on record. The USDM on September 30th had 89% of the…

Snow overspread the area during the evening of the 3rd, heavy at times overnight into the morning of the 4th. The North Country was far enough west to be well into the colder portions of the storm, and despite the late season winter event, temperatures remained at or below freezi…

Snowfall rates in excess of 1 inch per hour in the morning led to snowfall totals ranging between 9 and 15 inches.

Snow squalls arrived in the North Country during the afternoon on the 14th. The webcams on First Connecticut Lake observed visibility of one quarter mile with quick, light accumulations on the roads. The squalls lasted about 20 minutes at any given location before conditions impr…

Precipitation began around midday on the 3rd as a wintry mix of rain and snow. Downsloping easterly flow, which was both warmer and drier than on the upslope side of the White Mountains, kept precipitation type mainly rain or very light snow. The east facing slopes stayed predomi…

Snow overspread the North Country shortly after midnight, early on the morning of the 4th. Snowfall quickly became moderate to heavy through the early afternoon hours. As low pressure moved into the northwest Atlantic flow become more northwesterly and snow tapered to upslope sno…

By the morning 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 -55 degrees early on the 4th before winds gradually began…

A significant downslope windstorm occurred in the White Mountains on the 23rd. With a temperature inversion sitting right around ridgeline, strong to damaging wind gusts were able to mix down the lee side of the higher terrain. For most of the day winds gusted between 40 and 60 m…

Light precipitation began early in the morning on the 16th. Steady moderate to occasionally heavy snow started relatively quickly after the onset, especially at higher elevations. Precipitation tapered off during the morning of the 17th as upslope enhanced snow showers. Snowfall …

Early in the day on the 12th precipitation was mainly rain, especially in the valleys. By mid-morning precipitation rapidly changed over to snow as low pressure developed off the coast of southern New England and colder air filtered in from the north. Snow became heavy at times t…

Snow overspread the North Country early in the morning on the 25th. A hybrid type snow band gradually transitioned into a laterally quasi-stationary band around daybreak. Moderate to heavy snowfall continued from that time through early afternoon. The snow tapered off in the earl…

Rain changed to snow around 3:00 pm on the 3rd. During the late evening the snow intensity increased and remained moderate at times through daybreak on the 4th. Steady snow continued through the day and tapered off in the evening. Snowfall amounts ranged from 9 to 13 inches.

Strong warm air advection forced a laterally translating band of snow north of the White Mountains during the morning of the 17th. Within a couple hours snow was moderate to heavy. Snowfall rates were near 1 inch per hour for two or three hours leading up to midday. The dry slot …

Snow overspread the North Country by mid afternoon on the 18th. Snow became moderate in the evening but otherwise remained light for the duration of the storm. Snow tapered off in the morning on the 19th, finally ending as a couple of waves of light snow enhanced by upsloping win…

Less than 1% of the state remained in a severe drought (D2) in far eastern Coos County and the headwaters of the Androscoggin River. The moderate drought conditions (D1) remained around 3% of the state, focused again across eastern Coos County. The abnormally dry (D0) across cent…

The severe (D2) drought conditions across northern New Hampshire were reduced to a 0.5% of the area across portions of eastern Coos County. Between the beginning and end of September, the cumulative area in drought (D0-D2) was reduced from 30% to 21%. Monthly rainfall was at or a…

In New Hampshire, 1% of the state was in a severe drought D2 across eastern Coos County. The moderate drought conditions D1 across the remainder of northern New Hampshire remained steady at 12% across the remainder of Coos County. For the areas in moderate to severe drought, rain…

Drought conditions improved across southern and central New Hampshire during July due to well above normal rainfall. The July 1 issuance of the U.S. Drought Monitor had 90% of New Hampshire at a drought level of D0 or greater. A moderate drought level (D1) or higher was in place …

In New Hampshire, 76 community water systems have water restrictions in place as of June 23, with 71 of them having mandatory restrictions. Farmers without irrigation experienced stressed vegetation from a lack of rain and near record temperatures in June. First-cut hay crop was …

Early spring snowstorm began early on the 16th as rain transitioned over to snow across the higher elevations. Snow levels quickly lowered with snow spreading across the entire region by day break on the 16th. Moderate snow was observed from late morning through late afternoon on…

Snow moved into the area just after midnight 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 the White Mountains. Snow continued into the evening in waves as add…

Snow began on the morning of the 16th and continued into the mid afternoon hours. A mild mid-January air mass resulted in a strong elevation dependence to snowfall amounts. Snowfall over a foot occurred in the higher elevations with totals closer to 5 inches in the Connecticut Ri…

Snow moved into the North Country late on the evening of the 1st. Light to moderate snow continued into the early morning hours of the 2nd before tapering off or mixing with sleet and freezing rain. After sunrise steady snow moved back into the area and continued until ending as …

Snow moved into the North Country early afternoon on the 5th. Snow became moderate to occasionally heavy on northern edge of the precipitation shield through the late evening. Some downsloping winds and warmer temperatures resulted in significantly less snow in the Connecticut Ri…

The drought peaked in intensity during the first week of October before beneficial widespread rains impacted the state towards the middle of October. Concord received a monthly rainfall total of 5.11, Manchester received 4.01, Whitefield received 5.48, and Durham received 4.59. E…

Drought continued to expand and intensified through the month of September with the state of New Hampshire recording the 7th driest September on record. D2 severe drought expanded to cover every county in New Hampshire by the end of the month. In addition, an area of D3 extreme d…

Tropical Storm Isaias brought limited impacts to COOS County with isolated reports of snapped and uprooted trees along with broken branches due to the gusty winds. Scattered power outages were reported, with a majority of power being restored within 24 hours. No flooding was repo…

Anywhere from 1 to 5 inches of snow fell across northern Coos County NH with the highest amount of 5 inches in Colebrook.

Precipitation overspread northern Coos County during the morning of the 9th as mostly rain at the lower elevations, and some snow in the mountains. Temperatures gradually cooled into the upper 30s, but by late afternoon heavier precipitation moved in, temperatures fell to the low…

A mid level warm front lifting northward brought snow showers to the area for much of the day on the 26th. A break in precipitation occurred overnight followed by a large area of heavy precipitation moving in before dawn on the 27th. Heavy, wet snow came down for most of the firs…

As the mid level warm front moved through the area on the morning of the 6th as steady light snow overspread northern Coos County. A fairly uniform 3 to 4 inches of snow fell before it tapered off by midday. A prolonged period of light freezing drizzle or sleet lasted until the m…

Snow began on the evening of the 18th and quickly became moderate to heavy through midnight. Snow tapered off but lingered through 6:00 am on the 19th with the approach of a cold front from the west. Behind the front upslope snow showers continued into the afternoon. Snow totals …

Snow moved in late on December 29th. Drier air from the northeast pushed snow back to the southwest for a time early on the 30th and snow came to an end briefly. A band of moderate to heavy to snow then developed and then stalled overhead. Snow lightened up around midday but ligh…

Light precipitation on the evening of the 11th tapered off many locations as the mid level warm front lifted north of the area for a time. Northern Coos County remained close enough to the lift aloft and cold enough at the surface that light snow continued for the majority of the…

Snow began late on the 21st but did not become heavy at times until early on the 22nd. With a warmer late season boundary layer a combination of dynamic, evaporational, and upslope cooling allowed precipitation to stay mostly snow in the mountains of North Country New Hampshire. …

Snow began in the late afternoon and quickly became moderate to heavy in the evening. After midnight warmer air aloft changed some of the precipitation to a mix of snow and sleet. Precipitation quickly ended from west to east early on the morning of the 13th. Snowfall accumulatio…

Persistent light snow along a weak warm front developed on the evening of the 29th over parts of the North Country. Secondary low pressure developed in the Gulf of Maine overnight and snowfall intensified through the early morning hours on the 30th. Snow quickly ended from west t…

Heavy snow moved into the North Country in the early morning hours and continued through the afternoon. Mixed precipitation stayed to the south, and snowfall totals ranged from 12 to 15 inches.

A band of heavy snowfall developed on the morning of the 9th and pivoted over the North Country. Snow accumulations reached 6 inches or more by midday. Low pressure moving into New Brunswick kept winds northwest over the area into the overnight, and low level moisture forced over…

Steady snow began on the evening of the 26th. Southeast flow downsloping off the White Mountains delayed significant snowfall accumulation for much of the early part of the event. Light accumulations occurred through the morning of the 27th. Once flow became westerly and upslope …

Snow overspread the North Country of New Hampshire early on the morning of the 13th. Snow gradually increased in intensity, becoming moderate for a stretch from near sunrise to mid-morning. Steady snow began to taper off in the early afternoon, though upslope snow showers lingere…