Winter Storm in Southern Coos, New Hampshire

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 first half of the day before tapering off to a drier and lighter snowfall in the afternoon. Steady snow came to an end in the late afternoon but upslope snow showers continued into the overnight. Total snowfall widely ranged across southern Coos County and across elevations. Milder air in the Connecticut River Valley kept snow totals near 3 inches, while elevation and upslope enhancement led to as much at 15 inches in the White Mountains.

On the morning of the 26th a weak low pressure formed over the Piedmont of North Carolina and tracked northeastward along the Mid Atlantic coast. Low pressure deepened more rapidly as it moved through New England just inland from the coast. Through much of the day on the 26th there was only showery precipitation near the warm front as it moved northward. A larger and heavier area of precipitation moved into the region just ahead of the main surface low. Widespread heavy rainfall resulted south of the mountains, but in the higher terrain and to the north a heavy, wet snow fell. Steady precipitation was quick to come to an end on the afternoon of the 27th, but upslope snow showers continued into the overnight as much colder air poured into the Northeast.