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Northeast River Forecast Center

Hydrograph

River at a Glance

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Probability Information Weekly Chance of Exceeding Levels Chance of Exceeding Levels During Entire Period Short-term Probabilistic Guidance (Experimental)

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Printable Image About this graph Tabular Data (UTC) Tabular Data (EDT) Datum: NAVD88 Metadata

NOTE: Forecasts for the Blackstone River at Woonsocket are issued routinely year-round.

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Upstream Gauge

Flood Categories (in feet) Major Flood Stage: 16 Moderate Flood Stage: 12 Flood Stage: 9 Action Stage: 8 Low Stage (in feet): -9999 Historic Crests (1) 21.80 ft on 08/19/1955 (2) 15.34 ft on 10/16/2005 (3) 15.09 ft on 01/25/1979 (4) 14.64 ft on 03/19/1968 (5) 14.50 ft on 03/31/2010 Show More Historic Crests (P): Preliminary values subject to further review. Recent Crests (1) 9.94 ft on 09/03/2021 (P) (2) 9.01 ft on 01/25/2019 (3) 8.43 ft on 03/03/2018 (4) 9.41 ft on 03/31/2014 (5) 9.00 ft on 09/09/2011 Show More Recent Crests (P): Preliminary values subject to further review. Low Water Records Currently none available. For more information on your flood risk go to www.floodsmart.gov. Show FEMA's National Flood Hazard Layers FEMA's National Flood Hazard Layers not showing? Why aren't the FEMA National Flood Hazard Layers showing on the ESRI Map? Possible reasons: There are no FEMA National Flood Hazard Layers for the location which you are viewing on ESRI Maps. The FEMA Web Mapping Service (WMS) is down. Note: Your zoom level may have changed. ESRI's zoom levels must be between 14 and 16 to show National Flood Hazard layers.

Zoom Level:14 Legend FEMA Layer Gauge Location Disclaimer Latitude/Longitude Disclaimer: The gauge location shown in the above map is the approximate location based on the latitude/longitude coordinates provided to the NWS by the gauge owner.

Flood Impacts & Photos

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18	Flooding along the Blackstone River is forecast to be the worst flooding since the flooding associated with Connie and Diane in 1955. Follow the instructions of local officials and evacuate if asked to do so. Obey posted road closures. Do not go sightseeing. River banks can suddenly erode due to swift river flows.
16	At this stage, flooding will be comparable to, or worse than, the floods of october 2005. Flooding of homes and businesses is expected outside of flood protection levees and walls. Some river roads will become impassable from Woonsocket through Central Falls. Floodwaters encroach near the floorboards of the first level of the River Island Condominiums in Woonoscket. Follow the advice of local officials and evacuate if asked to do so.
14	Flooding is likely in lower lying sections of Woonsocket and Cumberland. Deep floodwaters are expected in the lower level of the River Island Condominiums in Woonsocket. Several buisnesses along the river will have several feet of water into their parking areas. Action will be needed to clear vehicles from these areas.
12	Flooding is likely in lower lying sections of Woonsocket and Cumberland. Significant flooding occurs within the lower level of the River Island Condominiums in Woonsocket. Several buisnesses along the river will have several feet of water into their parking areas. Action will be needed to clear vehicles from these areas.
11	Floodwaters are inside the lower level of the River Island Condominiums in Woonsocket. Flooding spreads across most of the lower parking area of the Albion Mill Apartments. Flooding is also expected to overspread lowest lying sections of Lonsdale in Cumberland.
10	Flooding is likely along low lying areas of the river. This includes the lower level of the River Island Condominiums in Woonsocket, and lower end of the Albion Mills Apartments parking area. Flood waters may also cover portions of the parking areas of some of the mills and shopping outlets in Cumberland located just off of Route 122.
9	Flooding may begin to affect the lower parking area to the Albion Mill Apartments. Lower lying residential areas along the Rhode Island and Massachusetts line, including the lower level of the River Island Condominiums in Woonsocket, may begin to experience flooding. Businesses along the river should take the necessary actions to protect property.
8.5	If unprotected, floodwaters reach the very base of the lower level of the River Island Condominium Building in Woonsocket.

About This Location

Latitude: 42.006389° N, Longitude: 71.503056° W, Horizontal Datum: NAD83/WGS84 River Stage Reference Frame Gauge Height Flood Stage Uses NWS stage 0 ft 9 ft Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps Vertical Datum Elevation (gauge height = 0) Elevation (gauge height = flood stage) Elevation information source NAVD88 106.64 115.64 Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps NGVD 29 Not Available Not Available Older USGS topographic maps, NGVD29 benchmarks MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks Other NULL NULL   Current/Historical Observations: U.S. Geological Survey (USGS) Data and Site Info for Woonsocket

Additional Information

Potential River Levels Used to Estimate the Chance of Flooding and the Range of Possible River Levels 10 Day (HEFS) 7 Day (NAEFS) 7 Day (GEFS) Note: Use the official hydrograph at the top of this web page for river levels within the next 72 hours. Click individual graphics to enlarge.

Resources

Hydrologic Resources Text Products Past Precipitation Forecast Precipitation River Forecast Centers River Stage Summary Inundation Mapping Locations

Additional Resources Area Hydrographs NWS Precipitation and River Forecasting AHPS Iframes for Developers Mobile iNWS for emergency management Snow Information Ensemble River Forecasts Hourly Precipitation

Collaborative Agencies The National Weather Service prepares its forecasts and other services in collaboration with agencies like the US Geological Survey, US Bureau of Reclamation, US Army Corps of Engineers, Natural Resource Conservation Service, National Park Service, ALERT Users Group, Bureau of Indian Affairs, and many state and local emergency managers across the country. For details, please click here. NWS Information National Weather Service Boston / Norton Weather Forecast Office 46 Commerce Way Norton, MA 02766 (508) 622-3250 Ask Questions/Webmaster Page last modified: 2-Nov-2020 7:30 PM Disclaimer Credits Glossary Privacy Policy About Us Career Opportunities