Heavy Snow — Northwest Middlesex County, Massachusetts

2023-01-20 · Northwest Middlesex County, Massachusetts

Event narrative

In the higher terrain of far northwest Middlesex County, 5 to 7 inches of snow fell. In Pepperell, a trained spotter reported 6.3 inches. Other reports included 8.0 in Ashby (which may have been too high) and 5.4 inches in Tyngsboro - just to the east of MA Zone 26.

Wider weather episode

Areas of light rain transitioned to snow by late in the morning. Even though low pressure was pulling farther away offshore, upper level low pressure remained to the west and an inverted trough set up with a mid-level convergence axis across northern Massachusetts. Pockets of moderate snow fell through the afternoon, with totals of up to 6 to 7 inches in a few places in northern MA.

Source: NOAA Storm Events Database, event_id 1068849. Narrative written by the NWS forecast office that issued the report.