Boston, MA · King tide season
Boston floods.
Know before it does.
A free, street-by-street flood forecast for every high tide: which roads go under, when, and for how long. No app needed.
Streets that flood first
- 1Chelsea Streetat 11.3 ft tide
- 2William T. Morrissey Boulevardat 11.5 ft tide
- 3Marginal Streetat 11.5 ft tide
- 4Main Streetat 12.0 ft tide
- 5Northern Avenueat 12.2 ft tide
Tide heights at the NOAA Boston station (ft above MLLW). Heavy rain makes it worse; the live map includes the rain forecast.
Next flood days
- Mon, Oct 26Possible11:15 AM–12:00 PM · Chelsea Street, William T. Morrissey Boulevard
- Tue, Oct 27Possible11:40 AM–1:25 PM · Chelsea Street, William T. Morrissey Boulevard
- Wed, Oct 28Possible12:20–2:20 PM · Chelsea Street, William T. Morrissey Boulevard
- Thu, Oct 29Possible1:20–2:55 PM · Chelsea Street, William T. Morrissey Boulevard
Printed forecasts go stale. The QR code is always current.
Scan for the live flood map
floodroute.com/ma/boston
- • Drag through the day and watch your street flood and dry
- • Free alerts before king tides · add flood days to your calendar
- • See water on the road? Report it. Dated photo reports become a public record of where Boston floods.