Extreme Cold/Wind Chill — Northern Coos, New Hampshire

2026-01-23 to 2026-01-24 · Northern Coos, New Hampshire

Event narrative

During the evening on the 23rd temperatures plunged below zero. Strong cold air advection allowed mechanical mixing to occur through the night into the afternoon on the 24th. Sustained winds of 15 to 20 mph, and frequent gusts even higher, led to wind chills of 25 to 40 below zero.

Wider weather episode

During the afternoon on the 23rd a cold front crossed the Northeast. Later that evening a strong, secondary cold front crossed the region with heavy snow showers and bitterly cold temperatures. Widespread temperatures below zero and gusty winds were observed by the morning of the 24th. Key messages: dangerous wind chills, business closures.

Source: NOAA Storm Events Database, event_id 1303189. Narrative written by the NWS forecast office that issued the report.