Skip Navigation Link weather.gov  
NOAA logo - Click to go to the NOAA homepage National Weather Service NWS logo - Click to go to the NWS homepage
Advanced Hydrologic Prediction Service
Image background of Navigation bar Left Home News Organization
Bookmark and Share Navigation Bar End Cap

  

National Conditions
    Rivers
    Satellite
    Climate
    Observed Precip
    
Local Conditions
    Warnings
    Weather Forecast
    Radar

AHPS Documentation
    User Guide
    User Brochure

What is AHPS?
    Facts
    Our Partners
    
Feedback/Questions
    Provide Feedback
    Ask Questions

When flooded turn around don't drown
FloodSmart
USA.gov Official Web Portal
 
Hydrograph River at a Glance Download
Atlantic Coast at Dennis Sesuit Harbor (IN MLLW) Tide Height (ft)Observed: 3.18 ft at 11:31AM Nov 27, 2021Observed: 3.51 ft at 11:45AM Nov 27, 2021Observed: 3.65 ft at 12:00PM Nov 27, 2021Observed: 3.99 ft at 12:15PM Nov 27, 2021Observed: 4.29 ft at 12:30PM Nov 27, 2021Observed: 4.76 ft at 12:45PM Nov 27, 2021Observed: 5.08 ft at 1:00PM Nov 27, 2021Observed: 5.5 ft at 1:15PM Nov 27, 2021Observed: 5.85 ft at 1:30PM Nov 27, 2021Observed: 6.25 ft at 1:45PM Nov 27, 2021Observed: 6.72 ft at 2:00PM Nov 27, 2021Observed: 7.13 ft at 2:15PM Nov 27, 2021Observed: 7.53 ft at 2:30PM Nov 27, 2021Observed: 7.96 ft at 2:45PM Nov 27, 2021Observed: 8.31 ft at 3:00PM Nov 27, 2021Observed: 8.64 ft at 3:15PM Nov 27, 2021Observed: 8.94 ft at 3:30PM Nov 27, 2021Observed: 9.12 ft at 3:45PM Nov 27, 2021Observed: 9.33 ft at 4:00PM Nov 27, 2021Observed: 9.53 ft at 4:15PM Nov 27, 2021Observed: 9.59 ft at 4:30PM Nov 27, 2021Observed: 9.67 ft at 4:45PM Nov 27, 2021Observed: 9.64 ft at 5:00PM Nov 27, 2021Observed: 9.57 ft at 5:15PM Nov 27, 2021Observed: 9.46 ft at 5:30PM Nov 27, 2021Observed: 9.26 ft at 5:45PM Nov 27, 2021Observed: 9.04 ft at 6:00PM Nov 27, 2021Observed: 8.76 ft at 6:15PM Nov 27, 2021Observed: 8.47 ft at 6:30PM Nov 27, 2021Observed: 8.03 ft at 6:45PM Nov 27, 2021Observed: 7.64 ft at 7:00PM Nov 27, 2021Observed: 7.34 ft at 7:15PM Nov 27, 2021Observed: 6.85 ft at 7:30PM Nov 27, 2021Observed: 6.38 ft at 7:45PM Nov 27, 2021Observed: 5.92 ft at 8:00PM Nov 27, 2021Observed: 5.34 ft at 8:15PM Nov 27, 2021Observed: 4.89 ft at 8:30PM Nov 27, 2021Observed: 4.34 ft at 8:45PM Nov 27, 2021Observed: 3.91 ft at 9:00PM Nov 27, 2021Observed: 3.44 ft at 9:15PM Nov 27, 2021Observed: 3.06 ft at 9:30PM Nov 27, 2021Observed: 2.71 ft at 9:45PM Nov 27, 2021Observed: 2.41 ft at 10:00PM Nov 27, 2021Observed: 2.1 ft at 10:15PM Nov 27, 2021Observed: 1.91 ft at 10:30PM Nov 27, 2021Observed: 1.83 ft at 10:45PM Nov 27, 2021Observed: 1.76 ft at 11:00PM Nov 27, 2021Observed: 1.8 ft at 11:15PM Nov 27, 2021Observed: 1.87 ft at 11:30PM Nov 27, 2021Observed: 2.04 ft at 11:45PM Nov 27, 2021Observed: 2.24 ft at 12:00AM Nov 28, 2021Observed: 2.52 ft at 12:15AM Nov 28, 2021Observed: 2.8 ft at 12:30AM Nov 28, 2021Observed: 3.09 ft at 12:45AM Nov 28, 2021Observed: 3.38 ft at 1:00AM Nov 28, 2021Observed: 3.79 ft at 1:15AM Nov 28, 2021Observed: 4.1 ft at 1:30AM Nov 28, 2021Observed: 4.55 ft at 1:45AM Nov 28, 2021Observed: 4.89 ft at 2:00AM Nov 28, 2021Observed: 5.41 ft at 2:15AM Nov 28, 2021Observed: 5.79 ft at 2:30AM Nov 28, 2021Observed: 6.24 ft at 2:45AM Nov 28, 2021Observed: 6.73 ft at 3:00AM Nov 28, 2021Observed: 7.18 ft at 3:15AM Nov 28, 2021Observed: 7.64 ft at 3:30AM Nov 28, 2021Observed: 8.06 ft at 3:45AM Nov 28, 2021Observed: 8.43 ft at 4:00AM Nov 28, 2021Observed: 8.72 ft at 4:15AM Nov 28, 2021Observed: 8.98 ft at 4:30AM Nov 28, 2021Observed: 9.21 ft at 4:45AM Nov 28, 2021Observed: 9.31 ft at 5:00AM Nov 28, 2021Observed: 9.34 ft at 5:15AM Nov 28, 2021Observed: 9.39 ft at 5:30AM Nov 28, 2021Observed: 9.32 ft at 5:45AM Nov 28, 2021Observed: 9.17 ft at 6:00AM Nov 28, 2021Observed: 9.03 ft at 6:15AM Nov 28, 2021Observed: 8.81 ft at 6:30AM Nov 28, 2021Observed: 8.53 ft at 6:45AM Nov 28, 2021Observed: 8.26 ft at 7:00AM Nov 28, 2021Observed: 7.94 ft at 7:15AM Nov 28, 2021Observed: 7.59 ft at 7:30AM Nov 28, 2021Observed: 7.24 ft at 7:45AM Nov 28, 2021Observed: 6.84 ft at 8:00AM Nov 28, 2021Observed: 6.45 ft at 8:15AM Nov 28, 2021Observed: 6.07 ft at 8:30AM Nov 28, 2021Observed: 5.62 ft at 8:45AM Nov 28, 2021Observed: 5.22 ft at 9:00AM Nov 28, 2021Observed: 4.78 ft at 9:15AM Nov 28, 2021Observed: 4.33 ft at 9:30AM Nov 28, 2021Observed: 3.95 ft at 9:45AM Nov 28, 2021Observed: 3.55 ft at 10:00AM Nov 28, 2021Observed: 3.28 ft at 10:15AM Nov 28, 2021Observed: 2.93 ft at 10:30AM Nov 28, 2021Observed: 2.93 ft at 10:32AM Nov 28, 2021Observed: 2.7 ft at 10:45AM Nov 28, 2021Observed: 2.55 ft at 11:00AM Nov 28, 2021Observed: 2.48 ft at 11:15AM Nov 28, 2021Observed: 2.38 ft at 11:30AM Nov 28, 2021Observed: 2.47 ft at 11:45AM Nov 28, 2021Observed: 2.51 ft at 12:00PM Nov 28, 2021Observed: 2.71 ft at 12:15PM Nov 28, 2021Observed: 2.9 ft at 12:30PM Nov 28, 2021Observed: 3.22 ft at 12:45PM Nov 28, 2021Observed: 3.45 ft at 1:00PM Nov 28, 2021Observed: 3.86 ft at 1:15PM Nov 28, 2021Observed: 4.15 ft at 1:30PM Nov 28, 2021Observed: 4.5 ft at 1:45PM Nov 28, 2021Observed: 4.88 ft at 2:00PM Nov 28, 2021Observed: 5.26 ft at 2:15PM Nov 28, 2021Observed: 5.7 ft at 2:30PM Nov 28, 2021Observed: 6.06 ft at 2:45PM Nov 28, 2021Observed: 6.47 ft at 3:00PM Nov 28, 2021Observed: 6.88 ft at 3:15PM Nov 28, 2021Observed: 7.27 ft at 3:30PM Nov 28, 2021Observed: 7.71 ft at 3:45PM Nov 28, 2021Observed: 8.12 ft at 4:00PM Nov 28, 2021Observed: 8.5 ft at 4:15PM Nov 28, 2021Observed: 8.86 ft at 4:30PM Nov 28, 2021Observed: 9.2 ft at 4:45PM Nov 28, 2021Observed: 9.45 ft at 5:00PM Nov 28, 2021Observed: 9.61 ft at 5:15PM Nov 28, 2021Observed: 9.7 ft at 5:30PM Nov 28, 2021Observed: 9.73 ft at 5:45PM Nov 28, 2021Observed: 9.6 ft at 6:00PM Nov 28, 2021Observed: 9.41 ft at 6:15PM Nov 28, 2021Observed: 9.2 ft at 6:30PM Nov 28, 2021Observed: 8.95 ft at 6:45PM Nov 28, 2021Observed: 8.65 ft at 7:00PM Nov 28, 2021Observed: 8.33 ft at 7:15PM Nov 28, 2021Observed: 7.97 ft at 7:30PM Nov 28, 2021Observed: 7.72 ft at 7:45PM Nov 28, 2021Observed: 7.31 ft at 8:00PM Nov 28, 2021Observed: 7 ft at 8:15PM Nov 28, 2021Observed: 6.71 ft at 8:30PM Nov 28, 2021Observed: 6.25 ft at 8:45PM Nov 28, 2021Observed: 5.87 ft at 9:00PM Nov 28, 2021Observed: 5.34 ft at 9:15PM Nov 28, 2021Observed: 4.88 ft at 9:30PM Nov 28, 2021Observed: 4.41 ft at 9:45PM Nov 28, 2021Observed: 3.89 ft at 10:00PM Nov 28, 2021Observed: 3.43 ft at 10:15PM Nov 28, 2021Observed: 2.96 ft at 10:30PM Nov 28, 2021Observed: 2.58 ft at 10:45PM Nov 28, 2021Observed: 2.22 ft at 11:00PM Nov 28, 2021Observed: 1.9 ft at 11:15PM Nov 28, 2021Observed: 1.77 ft at 11:30PM Nov 28, 2021Observed: 1.66 ft at 11:45PM Nov 28, 2021Observed: 1.76 ft at 12:00AM Nov 29, 2021Observed: 1.8 ft at 12:15AM Nov 29, 2021Observed: 2 ft at 12:30AM Nov 29, 2021Observed: 2.22 ft at 12:45AM Nov 29, 2021Observed: 2.5 ft at 1:00AM Nov 29, 2021Observed: 2.95 ft at 1:15AM Nov 29, 2021Observed: 3.13 ft at 1:30AM Nov 29, 2021Observed: 3.59 ft at 1:45AM Nov 29, 2021Observed: 3.88 ft at 2:00AM Nov 29, 2021Observed: 4.27 ft at 2:15AM Nov 29, 2021Observed: 4.66 ft at 2:30AM Nov 29, 2021Observed: 5.06 ft at 2:45AM Nov 29, 2021Observed: 5.44 ft at 3:00AM Nov 29, 2021Observed: 5.91 ft at 3:15AM Nov 29, 2021Observed: 6.33 ft at 3:30AM Nov 29, 2021Observed: 6.83 ft at 3:45AM Nov 29, 2021Observed: 7.33 ft at 4:00AM Nov 29, 2021Observed: 7.84 ft at 4:15AM Nov 29, 2021Observed: 8.32 ft at 4:30AM Nov 29, 2021Observed: 8.77 ft at 4:45AM Nov 29, 2021Observed: 9.23 ft at 5:00AM Nov 29, 2021Observed: 9.63 ft at 5:15AM Nov 29, 2021Observed: 9.8 ft at 5:30AM Nov 29, 2021Observed: 10.03 ft at 5:45AM Nov 29, 2021Observed: 10.15 ft at 6:00AM Nov 29, 2021Observed: 10.08 ft at 6:15AM Nov 29, 2021Observed: 9.94 ft at 6:30AM Nov 29, 2021Observed: 9.89 ft at 6:45AM Nov 29, 2021Observed: 9.64 ft at 7:00AM Nov 29, 2021Observed: 9.45 ft at 7:15AM Nov 29, 2021Observed: 9.19 ft at 7:30AM Nov 29, 2021Observed: 8.92 ft at 7:45AM Nov 29, 2021Observed: 8.65 ft at 8:00AM Nov 29, 2021Observed: 8.35 ft at 8:15AM Nov 29, 2021Observed: 8.08 ft at 8:30AM Nov 29, 2021Observed: 7.69 ft at 8:45AM Nov 29, 2021Observed: 7.35 ft at 9:00AM Nov 29, 2021Observed: 6.91 ft at 9:15AM Nov 29, 2021Observed: 6.5 ft at 9:30AM Nov 29, 2021Observed: 6.5 ft at 9:32AM Nov 29, 2021Observed: 6 ft at 9:45AM Nov 29, 2021Observed: 5.48 ft at 10:00AM Nov 29, 2021Observed: 5.02 ft at 10:15AM Nov 29, 2021Observed: 4.47 ft at 10:30AM Nov 29, 2021Observed: 4.07 ft at 10:45AM Nov 29, 2021Observed: 3.59 ft at 11:00AM Nov 29, 2021Observed: 3.23 ft at 11:15AM Nov 29, 2021Observed: 3.03 ft at 11:30AM Nov 29, 2021Observed: 2.65 ft at 11:45AM Nov 29, 2021Observed: 2.57 ft at 12:00PM Nov 29, 2021Observed: 2.41 ft at 12:15PM Nov 29, 2021Observed: 2.38 ft at 12:30PM Nov 29, 2021Observed: 2.39 ft at 12:45PM Nov 29, 2021Observed: 2.58 ft at 1:00PM Nov 29, 2021Observed: 2.79 ft at 1:15PM Nov 29, 2021Observed: 3.1 ft at 1:30PM Nov 29, 2021Observed: 3.32 ft at 1:45PM Nov 29, 2021Observed: 3.66 ft at 2:00PM Nov 29, 2021Observed: 4.02 ft at 2:15PM Nov 29, 2021Observed: 4.48 ft at 2:30PM Nov 29, 2021Observed: 4.78 ft at 2:45PM Nov 29, 2021Observed: 5.25 ft at 3:00PM Nov 29, 2021Observed: 5.61 ft at 3:15PM Nov 29, 2021Observed: 6.08 ft at 3:30PM Nov 29, 2021Observed: 6.49 ft at 3:45PM Nov 29, 2021Observed: 6.85 ft at 4:00PM Nov 29, 2021Observed: 7.39 ft at 4:15PM Nov 29, 2021Observed: 7.9 ft at 4:30PM Nov 29, 2021Observed: 8.35 ft at 4:45PM Nov 29, 2021Observed: 8.8 ft at 5:00PM Nov 29, 2021Observed: 9.17 ft at 5:15PM Nov 29, 2021Observed: 9.56 ft at 5:30PM Nov 29, 2021Observed: 9.99 ft at 5:45PM Nov 29, 2021Observed: 10.17 ft at 6:00PM Nov 29, 2021Observed: 10.35 ft at 6:15PM Nov 29, 2021Observed: 10.48 ft at 6:30PM Nov 29, 2021Highest Observation: 10.52 ft at 6:45PM Nov 29, 2021Observed: 10.41 ft at 7:00PM Nov 29, 2021Observed: 10.26 ft at 7:15PM Nov 29, 2021Observed: 9.95 ft at 7:30PM Nov 29, 2021Observed: 9.67 ft at 7:45PM Nov 29, 2021Observed: 9.34 ft at 8:00PM Nov 29, 2021Observed: 8.99 ft at 8:15PM Nov 29, 2021Observed: 8.64 ft at 8:30PM Nov 29, 2021Observed: 8.27 ft at 8:45PM Nov 29, 2021Observed: 7.87 ft at 9:00PM Nov 29, 2021Observed: 7.52 ft at 9:15PM Nov 29, 2021Observed: 7.13 ft at 9:30PM Nov 29, 2021Observed: 6.59 ft at 9:45PM Nov 29, 2021Observed: 6.03 ft at 10:00PM Nov 29, 2021Observed: 5.5 ft at 10:15PM Nov 29, 2021Observed: 4.91 ft at 10:30PM Nov 29, 2021Observed: 4.42 ft at 10:45PM Nov 29, 2021Observed: 3.81 ft at 11:00PM Nov 29, 2021Observed: 3.34 ft at 11:15PM Nov 29, 2021Observed: 2.86 ft at 11:30PM Nov 29, 2021Observed: 2.55 ft at 11:45PM Nov 29, 2021Observed: 2.13 ft at 12:00AM Nov 30, 2021Observed: 1.91 ft at 12:15AM Nov 30, 2021Observed: 1.79 ft at 12:30AM Nov 30, 2021Observed: 1.59 ft at 12:45AM Nov 30, 2021Observed: 1.79 ft at 1:00AM Nov 30, 2021Observed: 1.6 ft at 1:15AM Nov 30, 2021Observed: 1.86 ft at 1:30AM Nov 30, 2021Observed: 1.93 ft at 1:45AM Nov 30, 2021Observed: 2.32 ft at 2:00AM Nov 30, 2021Observed: 2.66 ft at 2:15AM Nov 30, 2021Observed: 2.95 ft at 2:30AM Nov 30, 2021Observed: 3.37 ft at 2:45AM Nov 30, 2021Observed: 3.85 ft at 3:00AM Nov 30, 2021Observed: 4.3 ft at 3:15AM Nov 30, 2021Observed: 4.73 ft at 3:30AM Nov 30, 2021Observed: 5.27 ft at 3:45AM Nov 30, 2021Observed: 5.65 ft at 4:00AM Nov 30, 2021Observed: 6.25 ft at 4:15AM Nov 30, 2021Observed: 6.6 ft at 4:30AM Nov 30, 2021Observed: 7.14 ft at 4:45AM Nov 30, 2021Observed: 7.62 ft at 5:00AM Nov 30, 2021Observed: 8.15 ft at 5:15AM Nov 30, 2021Observed: 8.53 ft at 5:30AM Nov 30, 2021Observed: 9.01 ft at 5:45AM Nov 30, 2021Observed: 9.43 ft at 6:00AM Nov 30, 2021Observed: 9.68 ft at 6:15AM Nov 30, 2021Observed: 9.92 ft at 6:30AM Nov 30, 2021Observed: 10.13 ft at 6:45AM Nov 30, 2021Observed: 10.17 ft at 7:00AM Nov 30, 2021Observed: 10.19 ft at 7:15AM Nov 30, 2021Observed: 10.12 ft at 7:30AM Nov 30, 2021Observed: 9.88 ft at 7:45AM Nov 30, 2021Observed: 9.7 ft at 8:00AM Nov 30, 2021Observed: 9.53 ft at 8:15AM Nov 30, 2021Observed: 9.16 ft at 8:30AM Nov 30, 2021Observed: 9.16 ft at 8:32AM Nov 30, 2021Observed: 8.84 ft at 8:45AM Nov 30, 2021Observed: 8.5 ft at 9:00AM Nov 30, 2021Observed: 8.02 ft at 9:15AM Nov 30, 2021Observed: 7.53 ft at 9:30AM Nov 30, 2021Observed: 7.2 ft at 9:45AM Nov 30, 2021Observed: 6.7 ft at 10:00AM Nov 30, 2021Observed: 6.18 ft at 10:15AM Nov 30, 2021Observed: 5.58 ft at 10:30AM Nov 30, 2021Observed: 5 ft at 10:45AM Nov 30, 2021Observed: 4.4 ft at 11:00AM Nov 30, 2021Forecast: 2.7 ft 12:00PM Nov 30, 2021Forecast: 1 ft 1:00PM Nov 30, 2021Forecast: 0.8 ft 2:00PM Nov 30, 2021Forecast: 2.1 ft 3:00PM Nov 30, 2021Forecast: 4 ft 4:00PM Nov 30, 2021Forecast: 6 ft 5:00PM Nov 30, 2021Forecast: 8.1 ft 6:00PM Nov 30, 2021Forecast: 9.7 ft 7:00PM Nov 30, 2021Forecast: 10.1 ft 8:00PM Nov 30, 2021Forecast: 9.1 ft 9:00PM Nov 30, 2021Forecast: 7.4 ft 10:00PM Nov 30, 2021Forecast: 5.4 ft 11:00PM Nov 30, 2021Forecast: 3.2 ft 12:00AM Dec 01, 2021Forecast: 1.3 ft 1:00AM Dec 01, 2021Forecast: 0.5 ft 2:00AM Dec 01, 2021Forecast: 1.5 ft 3:00AM Dec 01, 2021Forecast: 3.5 ft 4:00AM Dec 01, 2021Forecast: 5.9 ft 5:00AM Dec 01, 2021Forecast: 8 ft 6:00AM Dec 01, 2021Forecast: 10.1 ft 7:00AM Dec 01, 2021Forecast: 11.2 ft 8:00AM Dec 01, 2021Forecast: 10.7 ft 9:00AM Dec 01, 2021Forecast: 8.9 ft 10:00AM Dec 01, 2021Forecast: 6.7 ft 11:00AM Dec 01, 2021Forecast: 4.3 ft 12:00PM Dec 01, 2021Forecast: 1.9 ft 1:00PM Dec 01, 2021Forecast: 0 ft 2:00PM Dec 01, 2021Forecast: 0.2 ft 3:00PM Dec 01, 2021Forecast: 1.8 ft 4:00PM Dec 01, 2021Forecast: 3.9 ft 5:00PM Dec 01, 2021Forecast: 6.2 ft 6:00PM Dec 01, 2021Forecast: 8.5 ft 7:00PM Dec 01, 2021Forecast: 10.2 ft 8:00PM Dec 01, 2021Forecast: 10.4 ft 9:00PM Dec 01, 2021Forecast: 9 ft 10:00PM Dec 01, 2021Forecast: 7 ft 11:00PM Dec 01, 2021Forecast: 4.8 ft 12:00AM Dec 02, 2021Forecast: 2.7 ft 1:00AM Dec 02, 2021Forecast: 0.8 ft 2:00AM Dec 02, 2021Forecast: 0.2 ft 3:00AM Dec 02, 2021Forecast: 1.4 ft 4:00AM Dec 02, 2021Forecast: 3.7 ft 5:00AM Dec 02, 2021Forecast: 6.3 ft 6:00AM Dec 02, 2021Forecast: 8.7 ft 7:00AM Dec 02, 2021Forecast: 11 ft 8:00AM Dec 02, 2021Highest Forecast: 11.9 ft 9:00AM Dec 02, 2021Forecast: 10.9 ft 10:00AM Dec 02, 2021Forecast: 9 ft 11:00AM Dec 02, 2021Forecast: 6.6 ft 12:00PM Dec 02, 2021Forecast: 3.9 ft 1:00PM Dec 02, 2021Forecast: 1.3 ft 2:00PM Dec 02, 2021Forecast: -0.4 ft 3:00PM Dec 02, 2021Forecast: -0.2 ft 4:00PM Dec 02, 2021Forecast: 1.7 ft 5:00PM Dec 02, 2021Forecast: 4.2 ft 6:00PM Dec 02, 2021Forecast: 6.6 ft 7:00PM Dec 02, 2021Forecast: 8.7 ft 8:00PM Dec 02, 2021Forecast: 10.4 ft 9:00PM Dec 02, 2021Forecast: 10.7 ft 10:00PM Dec 02, 2021Forecast: 9 ft 11:00PM Dec 02, 2021Forecast: 7 ft 12:00AM Dec 03, 2021Forecast: 4.8 ft 1:00AM Dec 03, 2021Forecast: 2.4 ft 2:00AM Dec 03, 2021Forecast: 0.6 ft 3:00AM Dec 03, 2021USGS--Water Resources of the United StatesSESM3(plotting HMIRG) Graph Created (11:30AM Nov 30, 2021)ObservedForecast (issued 4:29AM Nov 30)Latest observed value: 4.4 ft at 11:00 AM EST 30-Nov-2021. Flood Stage is 13 ft
Printable Image
About this graph
Tabular Data (UTC)
Tabular Data (EST)
XML Data
RSS Files
Datum: Not Available
Metadata
NOTE: Please refer to our Coastal Hazard Message for specific information regarding Coastal Flood Watches, Warnings and Advisories. Actual impacts from any coastal flooding event may vary due to factors such as rainfall, wave action, and the number of tide cycles during which there is an onshore flow. During tropical cyclones, please refer here for additional storm surge information.

NOTE: During a Tropical Storm or Hurricane Watch or Warning, inundation mapping provided by the National Hurricane Center (go to the web site and select the storm of interest) reflects a reasonable worst case scenario. The forecast above is the total water forecast that is most likely to occur.

NOTE: Forecasts for the Atlantic Coast at Dennis Sesuit Harbor (IN MLLW) are issued routinely year-round.

Vertical Datum references a tidal datum (MLLW)...for more information see Tides and Currents .

Return to Area Map
Flood Categories (in feet)
Major Flood Stage: 16
Moderate Flood Stage: 14.5
Flood Stage: 13
Action Stage: 12
Low Stage (in feet): -9999

Historic Crests
(1) 16.38 ft on 01/27/2015
(2) 16.12 ft on 01/04/2018
(3) 15.21 ft on 03/02/2018
(4) 15.17 ft on 03/03/2018
(5) 14.51 ft on 02/19/2015
(6) 14.45 ft on 02/15/2015
(7) 14.35 ft on 01/30/2018
(8) 14.27 ft on 01/24/2015
(9) 14.24 ft on 12/17/2020 (P)
(10) 14.11 ft on 01/22/2015
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 13.30 ft on 10/27/2021 (P)
(2) 13.61 ft on 02/02/2021 (P)
(3) 13.57 ft on 02/02/2021 (P)
(4) 14.24 ft on 12/17/2020 (P)
(5) 13.25 ft on 12/14/2020 (P)
(6) 13.08 ft on 11/17/2020 (P)
(7) 13.10 ft on 11/16/2020 (P)
(8) 13.17 ft on 11/15/2020 (P)
(9) 13.35 ft on 05/09/2020 (P)
(10) 13.33 ft on 05/08/2020 (P)
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.
Zoom Level:16
KML Image
Gauge LocationGauge Map Marker
 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 Collapse
If you notice any errors in the below information, please contact our Webmaster
16 Expect major coastal flooding in the Cape Cod Bay area stretching from Sandwich eastward thru Brewster. This includes extensive flooding of low lying roads, including Route 6A. Buildings adjacent to Sandwich Harbor and some buildings around Town Neck Beach become flooded or surrounded by floodwaters. The Sandwich Boardwalk, Marina, and Harbormaster's Shack become flooded. Heed the advice of local officials, and evacuate if asked to do so.
15 Moderate to major coastal flooding is expected along portions of the Cape Cod Bay shoreline from Sandwich eastward thru Brewster, with some low lying homes and roadways becoming surrounded or inundated by floodwaters. Portions of Route 6A become flooded. Heed the advice of local officials, and evacuate if asked to do so.
14 Moderate coastal flooding is expected. Floodwaters will encroach and in some cases surround low lying homes along Cape Cod Bay in the greater vicinity of Sandwich, Brewster and Dennis. River Street in Sandwich becomes flooded and impassable. In Dennis and Brewester, a portion of Route 6A becomes flooded.
13 Minor coastal flooding occurs along lowest lying areas along the shoreline.
About This Location Collapse

Latitude: 41.751900° N, Longitude: 70.153900° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 13 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 -5.77 7.23 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 Not Available 13 MLLW (Mean Lower Low Water)
Additional Information Collapse
Gage data provided by the United States Geological Survey (USGS).
Resources Collapse
Hydrologic Resources Additional Resources
Collaborative Agencies Collapse
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