Heavy Snow — Southern Coos, New Hampshire

2021-04-16 · Southern Coos, New Hampshire

Event narrative

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 mid afternoon hours on the 16th. The heavy wet snow led to a few power outages in the region that were quickly restored. Storm total snow ranged from 3 to 14 inches, with the heaviest amounts across the higher elevations. Heaviest amounts were concentrated in areas above 1000ft, with lighter amounts in the lower elevation river valleys.

Wider weather episode

A slow moving low pressure system moved across southern New England late Thursday night through Friday before entering into the Gulf of Maine by Saturday. Rain and snow started first across southern New Hampshire Thursday evening and quickly changed over to all snow across higher elevations above 1000ft. The snow became heavy at times by Friday morning with snowfall accumulations quickly adding up, especially across the Monadnock Region above 800ft. Heavy snow began to wind down by late morning across Southwest New Hampshire, but a second band of moderate snow pivoted further north across the White Mountains before tapering off Friday night. Key Impacts: transportation delays, heavy wet snow leading to power outages.

Source: NOAA Storm Events Database, event_id 957220. Narrative written by the NWS forecast office that issued the report.