Southern Coos storm history

A man who was attempting to hike in the high alpine zone of the Presidential Mountain range was unprepared for the extreme late season cold weather in June to include single digit wind chill values. The individual became cold, wet and unable to continue on the evening of June 18t…

The Mount Washington Avalanche Center reported on February 3, a backcountry skier traveling alone was caught, buried and killed in an avalanche on Feb 1st. Search and Rescue teams recovered the body on the evening of Feb 2nd. The avalanche buried the skier more than 12 feet deep …

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 squalls arrived over the North Country during the morning on the 7th. At 802 am the Mount Washington Regional Airport reported visibility falling to 1/4 mile and winds gusting to 24 mph. The squalls lasted about 20 to 25 minutes before conditions improved. Snowfall amounts w…

Snow squalls arrived over the North Country during the morning on the 28th. At 644 am the Berlin Regional Airport reported visibility falling to 1/4 mile and winds gusting to 29 mph and at 659 am the Mount Washington Regional Airport reported visibility falling to 1/4 mile and wi…

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. Snowfall on the northern side of persistent banding was a little more elevation dependent. Snowfall ranged from 2 inch…

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 12 and 20 inches, with up to 30 inches in the Presidentials.

Snow squalls arrived in the White Mountains mid afternoon on the 14th. The Mount Washington Regional Airport reported visibility falling below one quarter mile with winds gusting to 31 mph. Later the Berlin Region General Airport also reported visibility of one quarter mile with …

Precipitation began during the evening of the 9th with a band of heavy snow lifting northeastward through the White Mountains. Snowfall rates were briefly 1 inch per hour, before settling to a steady light to moderate snow through midnight. Snowfall rates increased again after mi…

East of a deep low pressure in the eastern Great Lakes a strong low level jet developed. East southeast winds near ridgeline in the White Mountains downsloped into the lee areas on the northwest side of the peaks. The strongest gusts began late in the evening on the 9th and conti…

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 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 -55 degrees early on the 4th before winds gradually beg…

Snow began during the evening of the 22nd. Snowfall quickly became moderate at times before midnight, then tapered to light snow which continued through most of the day on the 23rd. The White Mountains were on the northern edge of the heaviest snow band, with snowfall totals rang…

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. Southeast flow upsloping into the White Mountains produced significantly more snowfall along the eas…

Strong downslope winds on the lee-side of the Presidential Range of the White Mountains brought gusty southerly winds to the Lancaster/Littleton region of Coos County. Numerous reports of downed trees and branches along with power lines were reported in this area.

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 squalls crossed the White Mountains between 5:00 pm and 6:00 pm. The Mount Washington Regional Airport observed a visibility of less than 1/4 mile and a wind gust of 23 knots at 5:05 pm, and the Berlin Regional Airport observed a visibility of 1/4 mile and a wind gust of 25 …

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…

Snow squalls crossed the White Mountains between 400 pm and 500 pm. The Mount Washington Regional Airport observed a visibility of 1/4 mile and a wind gust of 20 knots at 417 pm, and the Berlin Regional Airport observed a visibility of 1/4 mile and a wind gust of 25 knots at 452 …

Rain changed to snow around 4:00 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 as much as 15 i…

Strong warm air advection forced a laterally translating band of snow into 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 and …

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…

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 continued all morning before beginning to taper off by m…

Snow moved into the area around 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 additio…

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 amounts near 15 inches occurred in the higher elevations of the White Mountains with totals as low…

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 2 to 8 inches of snow fell across southern Coos County NH with the highest amounts of 8 inches 6 ESE Carroll and in Whitefield.

Precipitation overspread southern 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…

Snow moved into the White Mountains during the afternoon on the 23rd and quickly became moderate to heavy. Forcing was driven primarily by warm air advection and banding near the low center never made it far enough northwest to affect the area, and so came to an end in less than …

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 began in the early morning hours of the 16th. The most persistent and heaviest bands of snow remained over the Lakes Region northward through the day. Snow tapered off in the afternoon before coming to an end. Totals ranged from 6 to 10 inches of wet, heavy snow.

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, before a band of moderate to heavy to snow developed and then stalled overhead. Snow lightened up around midday but light snow continued into the morn…

By midday on the 24th precipitation overspread northern New Hampshire. Strong lift helped cool a marginal air mass so that any rain or mix flipped to periods of moderate and heavy snow during the afternoon and evening. This was especially true where easterly flow upsloped into th…

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 White Mountains of New Hampshire. Lower el…

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 White Mountains. 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…