Winter Storm in Southern Carroll, New Hampshire

Snow overspread the Lakes Region by the afternoon on the 25th. Within an hour or two snow was moderate to heavy at times as an intense band of lift moved into the region. Snowfall rates were one to two inches per hour during the heavy snow. Snow continued overnight into the 26th, with occasional breaks or lighter snowfall before the storm center moved into the Atlantic. Snowfall totals ranged from 12 to 18 inches.

An expansive winter storm gripped much of the country beginning on the 24th. An anomalously cold air mass was in place ahead of the storm, which tracked through the southern Plains and across the Southeast. A significant cold air dam remained in place east of the Appalachian Mountains and helped to force secondary cyclogenesis south of New England on the 25th. Strong warm air advection in the mid levels forced an intense band of snow that lifted north through New England, reaching New Hampshire and western Maine during the afternoon. Snow quickly became moderate to heavy after onset. Snowfall rates were at times one inch or more per hour as the band lifted northward. In its wake lower level forcing continued the moderate to heavy snow near the Massachusetts border through the overnight into the morning of the 26th. This resulted in the highest snowfall totals across southeast New Hampshire and southwestern Maine. The upper level trough swung through the region on the 26th with light snow for much of the day, ending as one final burst of moderate snow in the evening. Key message: heavy snow, traffic accidents.