Winter Storm — Northern Carroll, New Hampshire

2022-02-25 · Northern Carroll, New Hampshire

Event narrative

Snow overspread the White Mountains early in the morning on the 25th. A hybrid type snow band gradually transitioned into a laterally quasi-stationary band around daybreak. Moderate to occasionally heavy snowfall continued from that time through early afternoon, aided by upslope flow into the White Mountains. The snow tapered off in the early evening as the storm headed into the northwest Atlantic. Snowfall amounts ranged from 7 to 11 inches.

Wider weather episode

Low pressure formed on the 24th along a warm front draped over the Southeast. The low deepened gradually as it lifted northeast through the Tennessee and then Ohio River Valleys during the evening of the 24th. An area of high pressure branched to the north of the advancing system, with cold air damming spilling down the eastern slopes of the Appalachians. The primary low pressure began to fill near Lake Erie with secondary low pressure developing off the Mid Atlantic coast. This low became the dominant one near Nantucket by midday on the 25th. A band of snow lifted into northern New England and then slid east through the day on the 25th, as the center of low pressure raced east northeast to the south of Nova Scotia.

Source: NOAA Storm Events Database, event_id 1009116. Narrative written by the NWS forecast office that issued the report.