Flash Flood — Middlesex, Massachusetts

2010-07-10 · near Watertown, Middlesex, Massachusetts

Event narrative

The most significant flash flooding affected Somerville, where damage was estimated to be around ten million dollars. Several businesses experienced severe flooding, and the Somerville Public Safety Building was inundated with nearly four feet of water. Three police cruisers were destroyed. Two schools and the library were also affected. Over three feet of water flooded Washington Street at McGrath Highway where several cars were stranded. A water rescue was required at an underpass in Union Square as flood waters rapidly inundated a vehicle. Widespread significant street flooding also occurred in Watertown, Belmont, Cambridge, and Medford.

Wider weather episode

Two to four inches of rain fell within an hour's time and produced significant urban flash flooding in and around the city of Boston.

View location on OpenStreetMap → (42.3700, -71.1800)

Source: NOAA Storm Events Database, event_id 255662. Narrative written by the NWS forecast office that issued the report.