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
 

ALERT: USGS and NOAA are currently investigating an issue that is impacting acquisition of stream gage data. The issue is impacting a subset of USGS equipment throughout the nation. We apologize for the service interruption and hope to have the data restored as soon as possible.



Hydrograph River at a Glance Download
Chesapeake Bay at BISHOPS HEAD Tide Height (ft)Observed: 1.54 ft at 10:36PM Oct 20, 2018Observed: 1.56 ft at 10:42PM Oct 20, 2018Observed: 1.6 ft at 10:48PM Oct 20, 2018Observed: 1.62 ft at 10:54PM Oct 20, 2018Observed: 1.66 ft at 11:00PM Oct 20, 2018Observed: 1.68 ft at 11:06PM Oct 20, 2018Observed: 1.7 ft at 11:12PM Oct 20, 2018Observed: 1.71 ft at 11:18PM Oct 20, 2018Observed: 1.72 ft at 11:24PM Oct 20, 2018Observed: 1.71 ft at 11:30PM Oct 20, 2018Observed: 1.73 ft at 11:36PM Oct 20, 2018Observed: 1.77 ft at 11:42PM Oct 20, 2018Observed: 1.76 ft at 11:48PM Oct 20, 2018Observed: 1.72 ft at 11:54PM Oct 20, 2018Observed: 1.77 ft at 12:00AM Oct 21, 2018Observed: 1.71 ft at 12:06AM Oct 21, 2018Observed: 1.72 ft at 12:12AM Oct 21, 2018Observed: 1.74 ft at 12:18AM Oct 21, 2018Observed: 1.72 ft at 12:24AM Oct 21, 2018Observed: 1.66 ft at 12:30AM Oct 21, 2018Observed: 1.59 ft at 12:36AM Oct 21, 2018Observed: 1.53 ft at 12:42AM Oct 21, 2018Observed: 1.51 ft at 12:48AM Oct 21, 2018Observed: 1.5 ft at 12:54AM Oct 21, 2018Observed: 1.49 ft at 1:00AM Oct 21, 2018Observed: 1.46 ft at 1:06AM Oct 21, 2018Observed: 1.41 ft at 1:12AM Oct 21, 2018Observed: 1.39 ft at 1:18AM Oct 21, 2018Observed: 1.43 ft at 1:24AM Oct 21, 2018Observed: 1.38 ft at 1:30AM Oct 21, 2018Observed: 1.34 ft at 1:36AM Oct 21, 2018Observed: 1.28 ft at 1:42AM Oct 21, 2018Observed: 1.26 ft at 1:48AM Oct 21, 2018Observed: 1.16 ft at 1:54AM Oct 21, 2018Observed: 1.14 ft at 2:00AM Oct 21, 2018Observed: 1.06 ft at 2:06AM Oct 21, 2018Observed: 1.05 ft at 2:12AM Oct 21, 2018Observed: 1 ft at 2:18AM Oct 21, 2018Observed: 0.97 ft at 2:24AM Oct 21, 2018Observed: 0.95 ft at 2:30AM Oct 21, 2018Observed: 0.87 ft at 2:36AM Oct 21, 2018Observed: 0.83 ft at 2:42AM Oct 21, 2018Observed: 0.78 ft at 2:48AM Oct 21, 2018Observed: 0.77 ft at 2:54AM Oct 21, 2018Observed: 0.68 ft at 3:00AM Oct 21, 2018Observed: 0.65 ft at 3:06AM Oct 21, 2018Observed: 0.59 ft at 3:18AM Oct 21, 2018Observed: 0.61 ft at 3:24AM Oct 21, 2018Observed: 0.61 ft at 3:30AM Oct 21, 2018Observed: 0.58 ft at 3:36AM Oct 21, 2018Observed: 0.55 ft at 3:42AM Oct 21, 2018Observed: 0.5 ft at 3:48AM Oct 21, 2018Observed: 0.43 ft at 3:54AM Oct 21, 2018Observed: 0.35 ft at 4:00AM Oct 21, 2018Observed: 0.32 ft at 4:06AM Oct 21, 2018Observed: 0.31 ft at 4:12AM Oct 21, 2018Observed: 0.28 ft at 4:18AM Oct 21, 2018Observed: 0.25 ft at 4:24AM Oct 21, 2018Observed: 0.18 ft at 4:30AM Oct 21, 2018Observed: 0.16 ft at 4:36AM Oct 21, 2018Observed: 0.09 ft at 4:42AM Oct 21, 2018Observed: 0.09 ft at 4:48AM Oct 21, 2018Observed: 0.04 ft at 4:54AM Oct 21, 2018Observed: 0.01 ft at 5:00AM Oct 21, 2018Observed: 0 ft at 5:06AM Oct 21, 2018Observed: 0 ft at 5:12AM Oct 21, 2018Observed: -0.01 ft at 5:18AM Oct 21, 2018Observed: -0.04 ft at 5:24AM Oct 21, 2018Observed: -0.01 ft at 5:30AM Oct 21, 2018Observed: -0.03 ft at 5:36AM Oct 21, 2018Observed: -0.01 ft at 5:42AM Oct 21, 2018Observed: 0.02 ft at 5:48AM Oct 21, 2018Observed: -0.01 ft at 5:54AM Oct 21, 2018Observed: -0.05 ft at 6:00AM Oct 21, 2018Observed: -0.07 ft at 6:06AM Oct 21, 2018Observed: -0.1 ft at 6:12AM Oct 21, 2018Observed: -0.16 ft at 6:18AM Oct 21, 2018Observed: -0.17 ft at 6:24AM Oct 21, 2018Observed: -0.16 ft at 6:30AM Oct 21, 2018Observed: -0.21 ft at 6:36AM Oct 21, 2018Observed: -0.2 ft at 6:42AM Oct 21, 2018Observed: -0.24 ft at 6:48AM Oct 21, 2018Observed: -0.23 ft at 6:54AM Oct 21, 2018Observed: -0.2 ft at 7:00AM Oct 21, 2018Observed: -0.24 ft at 7:06AM Oct 21, 2018Observed: -0.19 ft at 7:12AM Oct 21, 2018Observed: -0.21 ft at 7:18AM Oct 21, 2018Observed: -0.2 ft at 7:24AM Oct 21, 2018Observed: -0.2 ft at 7:30AM Oct 21, 2018Observed: -0.21 ft at 7:36AM Oct 21, 2018Observed: -0.17 ft at 7:42AM Oct 21, 2018Observed: -0.16 ft at 7:48AM Oct 21, 2018Observed: -0.13 ft at 7:54AM Oct 21, 2018Observed: -0.07 ft at 8:00AM Oct 21, 2018Observed: -0.08 ft at 8:06AM Oct 21, 2018Observed: -0.07 ft at 8:12AM Oct 21, 2018Observed: -0.1 ft at 8:18AM Oct 21, 2018Observed: -0.11 ft at 8:24AM Oct 21, 2018Observed: -0.1 ft at 8:30AM Oct 21, 2018Observed: -0.12 ft at 8:36AM Oct 21, 2018Observed: -0.04 ft at 8:42AM Oct 21, 2018Observed: -0.02 ft at 8:48AM Oct 21, 2018Observed: -0.02 ft at 8:54AM Oct 21, 2018Observed: -0.06 ft at 9:00AM Oct 21, 2018Observed: -0.1 ft at 9:06AM Oct 21, 2018Observed: -0.11 ft at 9:12AM Oct 21, 2018Observed: -0.09 ft at 9:18AM Oct 21, 2018Observed: -0.07 ft at 9:24AM Oct 21, 2018Observed: -0.14 ft at 9:30AM Oct 21, 2018Observed: -0.11 ft at 9:36AM Oct 21, 2018Observed: -0.01 ft at 9:42AM Oct 21, 2018Observed: -0.06 ft at 9:48AM Oct 21, 2018Observed: -0.07 ft at 9:54AM Oct 21, 2018Observed: -0.13 ft at 10:00AM Oct 21, 2018Observed: -0.09 ft at 10:06AM Oct 21, 2018Observed: -0.1 ft at 10:12AM Oct 21, 2018Observed: -0.09 ft at 10:18AM Oct 21, 2018Observed: -0.04 ft at 10:24AM Oct 21, 2018Observed: -0.02 ft at 10:30AM Oct 21, 2018Observed: -0.04 ft at 10:36AM Oct 21, 2018Observed: 0.05 ft at 10:54AM Oct 21, 2018Observed: 0.04 ft at 11:00AM Oct 21, 2018Observed: 0.1 ft at 11:06AM Oct 21, 2018Observed: 0.02 ft at 11:12AM Oct 21, 2018Observed: 0.02 ft at 11:18AM Oct 21, 2018Observed: 0.05 ft at 11:24AM Oct 21, 2018Observed: -0.03 ft at 11:30AM Oct 21, 2018Observed: 0.01 ft at 11:36AM Oct 21, 2018Observed: 0.06 ft at 11:42AM Oct 21, 2018Observed: 0.09 ft at 11:48AM Oct 21, 2018Observed: 0.09 ft at 11:54AM Oct 21, 2018Observed: 0.12 ft at 12:00PM Oct 21, 2018Observed: 0.12 ft at 12:06PM Oct 21, 2018Observed: 0.14 ft at 12:12PM Oct 21, 2018Observed: 0.1 ft at 12:18PM Oct 21, 2018Observed: 0.12 ft at 12:24PM Oct 21, 2018Observed: 0.15 ft at 12:30PM Oct 21, 2018Observed: 0.17 ft at 12:36PM Oct 21, 2018Observed: 0.2 ft at 12:42PM Oct 21, 2018Observed: 0.19 ft at 12:48PM Oct 21, 2018Observed: 0.16 ft at 12:54PM Oct 21, 2018Observed: 0.16 ft at 1:00PM Oct 21, 2018Observed: 0.17 ft at 1:06PM Oct 21, 2018Observed: 0.15 ft at 1:12PM Oct 21, 2018Observed: 0.19 ft at 1:18PM Oct 21, 2018Observed: 0.21 ft at 1:24PM Oct 21, 2018Observed: 0.21 ft at 1:30PM Oct 21, 2018Observed: 0.2 ft at 1:36PM Oct 21, 2018Observed: 0.18 ft at 1:42PM Oct 21, 2018Observed: 0.19 ft at 1:48PM Oct 21, 2018Observed: 0.19 ft at 1:54PM Oct 21, 2018Observed: 0.22 ft at 2:00PM Oct 21, 2018Observed: 0.18 ft at 2:06PM Oct 21, 2018Observed: 0.2 ft at 2:12PM Oct 21, 2018Observed: 0.22 ft at 2:18PM Oct 21, 2018Observed: 0.2 ft at 2:24PM Oct 21, 2018Observed: 0.17 ft at 2:30PM Oct 21, 2018Observed: 0.17 ft at 2:36PM Oct 21, 2018Observed: 0.17 ft at 2:42PM Oct 21, 2018Observed: 0.17 ft at 2:48PM Oct 21, 2018Observed: 0.14 ft at 2:54PM Oct 21, 2018Observed: 0.11 ft at 3:00PM Oct 21, 2018Observed: 0.13 ft at 3:06PM Oct 21, 2018Observed: 0.13 ft at 3:12PM Oct 21, 2018Observed: 0.09 ft at 3:18PM Oct 21, 2018Observed: 0.1 ft at 3:24PM Oct 21, 2018Observed: 0.07 ft at 3:30PM Oct 21, 2018Observed: 0.05 ft at 3:36PM Oct 21, 2018Observed: 0.02 ft at 3:42PM Oct 21, 2018Observed: 0.03 ft at 3:48PM Oct 21, 2018Observed: 0 ft at 3:54PM Oct 21, 2018Observed: -0.05 ft at 4:00PM Oct 21, 2018Observed: -0.06 ft at 4:06PM Oct 21, 2018Observed: -0.04 ft at 4:12PM Oct 21, 2018Observed: -0.1 ft at 4:18PM Oct 21, 2018Observed: -0.1 ft at 4:24PM Oct 21, 2018Observed: -0.13 ft at 4:30PM Oct 21, 2018Observed: -0.15 ft at 4:36PM Oct 21, 2018Observed: -0.15 ft at 4:42PM Oct 21, 2018Observed: -0.16 ft at 4:48PM Oct 21, 2018Observed: -0.15 ft at 4:54PM Oct 21, 2018Observed: -0.2 ft at 5:00PM Oct 21, 2018Observed: -0.23 ft at 5:06PM Oct 21, 2018Observed: -0.23 ft at 5:12PM Oct 21, 2018Observed: -0.27 ft at 5:18PM Oct 21, 2018Observed: -0.29 ft at 5:24PM Oct 21, 2018Observed: -0.27 ft at 5:30PM Oct 21, 2018Observed: -0.29 ft at 5:36PM Oct 21, 2018Observed: -0.3 ft at 5:42PM Oct 21, 2018Observed: -0.32 ft at 5:48PM Oct 21, 2018Observed: -0.35 ft at 5:54PM Oct 21, 2018Observed: -0.37 ft at 6:00PM Oct 21, 2018Observed: -0.38 ft at 6:06PM Oct 21, 2018Observed: -0.39 ft at 6:12PM Oct 21, 2018Observed: -0.4 ft at 6:18PM Oct 21, 2018Observed: -0.4 ft at 6:24PM Oct 21, 2018Observed: -0.37 ft at 6:30PM Oct 21, 2018Observed: -0.4 ft at 6:36PM Oct 21, 2018Observed: -0.39 ft at 6:42PM Oct 21, 2018Observed: -0.41 ft at 6:48PM Oct 21, 2018Observed: -0.4 ft at 6:54PM Oct 21, 2018Observed: -0.4 ft at 7:00PM Oct 21, 2018Observed: -0.39 ft at 7:06PM Oct 21, 2018Observed: -0.39 ft at 7:12PM Oct 21, 2018Observed: -0.36 ft at 7:18PM Oct 21, 2018Observed: -0.37 ft at 7:24PM Oct 21, 2018Observed: -0.34 ft at 7:30PM Oct 21, 2018Observed: -0.32 ft at 7:36PM Oct 21, 2018Observed: -0.29 ft at 7:42PM Oct 21, 2018Observed: -0.27 ft at 7:48PM Oct 21, 2018Observed: -0.22 ft at 8:06PM Oct 21, 2018Observed: -0.18 ft at 8:12PM Oct 21, 2018Observed: -0.14 ft at 8:18PM Oct 21, 2018Observed: -0.11 ft at 8:24PM Oct 21, 2018Observed: -0.08 ft at 8:30PM Oct 21, 2018Observed: -0.01 ft at 8:36PM Oct 21, 2018Observed: 0.01 ft at 8:42PM Oct 21, 2018Observed: 0.03 ft at 8:48PM Oct 21, 2018Observed: 0.08 ft at 8:54PM Oct 21, 2018Observed: 0.13 ft at 9:00PM Oct 21, 2018Observed: 0.16 ft at 9:06PM Oct 21, 2018Observed: 0.17 ft at 9:12PM Oct 21, 2018Observed: 0.22 ft at 9:18PM Oct 21, 2018Observed: 0.27 ft at 9:24PM Oct 21, 2018Observed: 0.31 ft at 9:30PM Oct 21, 2018Observed: 0.34 ft at 9:36PM Oct 21, 2018Observed: 0.4 ft at 9:42PM Oct 21, 2018Observed: 0.43 ft at 9:48PM Oct 21, 2018Observed: 0.45 ft at 9:54PM Oct 21, 2018Observed: 0.49 ft at 10:00PM Oct 21, 2018Observed: 0.56 ft at 10:06PM Oct 21, 2018Observed: 0.61 ft at 10:12PM Oct 21, 2018Observed: 0.62 ft at 10:18PM Oct 21, 2018Observed: 0.66 ft at 10:24PM Oct 21, 2018Observed: 0.7 ft at 10:30PM Oct 21, 2018Observed: 0.72 ft at 10:36PM Oct 21, 2018Observed: 0.75 ft at 10:42PM Oct 21, 2018Observed: 0.82 ft at 10:48PM Oct 21, 2018Observed: 0.86 ft at 10:54PM Oct 21, 2018Observed: 0.86 ft at 11:00PM Oct 21, 2018Observed: 0.89 ft at 11:06PM Oct 21, 2018Observed: 0.91 ft at 11:12PM Oct 21, 2018Observed: 0.93 ft at 11:18PM Oct 21, 2018Observed: 0.92 ft at 11:24PM Oct 21, 2018Observed: 0.95 ft at 11:30PM Oct 21, 2018Observed: 0.96 ft at 11:36PM Oct 21, 2018Observed: 0.98 ft at 11:42PM Oct 21, 2018Observed: 1 ft at 11:48PM Oct 21, 2018Observed: 1.03 ft at 11:54PM Oct 21, 2018Observed: 1.01 ft at 12:00AM Oct 22, 2018Observed: 1.03 ft at 12:06AM Oct 22, 2018Observed: 1.04 ft at 12:12AM Oct 22, 2018Observed: 1.06 ft at 12:18AM Oct 22, 2018Observed: 1.05 ft at 12:24AM Oct 22, 2018Observed: 1.06 ft at 12:30AM Oct 22, 2018Observed: 1.05 ft at 12:36AM Oct 22, 2018Observed: 1.06 ft at 12:42AM Oct 22, 2018Observed: 1.05 ft at 12:48AM Oct 22, 2018Observed: 1.05 ft at 12:54AM Oct 22, 2018Observed: 1.04 ft at 1:00AM Oct 22, 2018Observed: 1.04 ft at 1:06AM Oct 22, 2018Observed: 1.04 ft at 1:12AM Oct 22, 2018Observed: 1.03 ft at 1:18AM Oct 22, 2018Observed: 1.02 ft at 1:24AM Oct 22, 2018Observed: 1.02 ft at 1:30AM Oct 22, 2018Observed: 1.01 ft at 1:36AM Oct 22, 2018Observed: 1 ft at 1:42AM Oct 22, 2018Observed: 0.98 ft at 1:48AM Oct 22, 2018Observed: 0.97 ft at 1:54AM Oct 22, 2018Observed: 0.95 ft at 2:00AM Oct 22, 2018Observed: 0.93 ft at 2:06AM Oct 22, 2018Observed: 0.91 ft at 2:12AM Oct 22, 2018Observed: 0.91 ft at 2:18AM Oct 22, 2018Observed: 0.89 ft at 2:24AM Oct 22, 2018Observed: 0.87 ft at 2:30AM Oct 22, 2018Observed: 0.85 ft at 2:36AM Oct 22, 2018Observed: 0.83 ft at 2:42AM Oct 22, 2018Observed: 0.81 ft at 2:48AM Oct 22, 2018Observed: 0.78 ft at 2:54AM Oct 22, 2018Observed: 0.75 ft at 3:00AM Oct 22, 2018Observed: 0.72 ft at 3:06AM Oct 22, 2018Observed: 0.7 ft at 3:12AM Oct 22, 2018Observed: 0.68 ft at 3:18AM Oct 22, 2018Observed: 0.66 ft at 3:24AM Oct 22, 2018Observed: 0.64 ft at 3:30AM Oct 22, 2018Observed: 0.62 ft at 3:36AM Oct 22, 2018Observed: 0.59 ft at 3:42AM Oct 22, 2018Observed: 0.57 ft at 3:48AM Oct 22, 2018Observed: 0.54 ft at 3:54AM Oct 22, 2018Observed: 0.52 ft at 4:00AM Oct 22, 2018Observed: 0.5 ft at 4:06AM Oct 22, 2018Observed: 0.48 ft at 4:12AM Oct 22, 2018Observed: 0.44 ft at 4:18AM Oct 22, 2018Observed: 0.42 ft at 4:24AM Oct 22, 2018Observed: 0.4 ft at 4:30AM Oct 22, 2018Observed: 0.38 ft at 4:36AM Oct 22, 2018Observed: 0.36 ft at 4:42AM Oct 22, 2018Observed: 0.33 ft at 4:48AM Oct 22, 2018Observed: 0.32 ft at 4:54AM Oct 22, 2018Observed: 0.3 ft at 5:00AM Oct 22, 2018Observed: 0.27 ft at 5:06AM Oct 22, 2018Observed: 0.26 ft at 5:12AM Oct 22, 2018Observed: 0.25 ft at 5:18AM Oct 22, 2018Observed: 0.23 ft at 5:24AM Oct 22, 2018Observed: 0.22 ft at 5:30AM Oct 22, 2018Observed: 0.21 ft at 5:36AM Oct 22, 2018Observed: 0.21 ft at 5:42AM Oct 22, 2018Observed: 0.18 ft at 5:48AM Oct 22, 2018Observed: 0.17 ft at 5:54AM Oct 22, 2018Observed: 0.15 ft at 6:00AM Oct 22, 2018Observed: 0.16 ft at 6:06AM Oct 22, 2018Observed: 0.15 ft at 6:12AM Oct 22, 2018Observed: 0.17 ft at 6:18AM Oct 22, 2018Observed: 0.18 ft at 6:24AM Oct 22, 2018Observed: 0.18 ft at 6:30AM Oct 22, 2018Observed: 0.19 ft at 6:36AM Oct 22, 2018Observed: 0.21 ft at 6:42AM Oct 22, 2018Observed: 0.22 ft at 6:48AM Oct 22, 2018Observed: 0.23 ft at 6:54AM Oct 22, 2018Observed: 0.23 ft at 7:00AM Oct 22, 2018Observed: 0.25 ft at 7:06AM Oct 22, 2018Observed: 0.27 ft at 7:12AM Oct 22, 2018Observed: 0.3 ft at 7:18AM Oct 22, 2018Observed: 0.32 ft at 7:24AM Oct 22, 2018Observed: 0.34 ft at 7:30AM Oct 22, 2018Observed: 0.37 ft at 7:36AM Oct 22, 2018Observed: 0.41 ft at 7:42AM Oct 22, 2018Observed: 0.45 ft at 7:48AM Oct 22, 2018Observed: 0.51 ft at 7:54AM Oct 22, 2018Observed: 0.54 ft at 8:00AM Oct 22, 2018Observed: 0.59 ft at 8:06AM Oct 22, 2018Observed: 0.64 ft at 8:12AM Oct 22, 2018Observed: 0.68 ft at 8:18AM Oct 22, 2018Observed: 0.73 ft at 8:24AM Oct 22, 2018Observed: 0.78 ft at 8:30AM Oct 22, 2018Observed: 0.83 ft at 8:36AM Oct 22, 2018Observed: 0.89 ft at 8:42AM Oct 22, 2018Observed: 0.94 ft at 8:48AM Oct 22, 2018Observed: 1 ft at 8:54AM Oct 22, 2018Observed: 1.06 ft at 9:00AM Oct 22, 2018Observed: 1.11 ft at 9:06AM Oct 22, 2018Observed: 1.16 ft at 9:12AM Oct 22, 2018Observed: 1.22 ft at 9:18AM Oct 22, 2018Observed: 1.27 ft at 9:24AM Oct 22, 2018Observed: 1.33 ft at 9:30AM Oct 22, 2018Observed: 1.39 ft at 9:36AM Oct 22, 2018Observed: 1.44 ft at 9:42AM Oct 22, 2018Observed: 1.5 ft at 9:48AM Oct 22, 2018Observed: 1.55 ft at 9:54AM Oct 22, 2018Observed: 1.6 ft at 10:00AM Oct 22, 2018Observed: 1.66 ft at 10:06AM Oct 22, 2018Observed: 1.7 ft at 10:12AM Oct 22, 2018Observed: 1.75 ft at 10:18AM Oct 22, 2018Observed: 1.79 ft at 10:24AM Oct 22, 2018Observed: 1.83 ft at 10:30AM Oct 22, 2018Observed: 1.88 ft at 10:36AM Oct 22, 2018Observed: 1.91 ft at 10:42AM Oct 22, 2018Observed: 1.96 ft at 10:48AM Oct 22, 2018Observed: 1.99 ft at 10:54AM Oct 22, 2018Observed: 2.01 ft at 11:00AM Oct 22, 2018Observed: 2.05 ft at 11:06AM Oct 22, 2018Observed: 2.07 ft at 11:12AM Oct 22, 2018Observed: 2.09 ft at 11:18AM Oct 22, 2018Observed: 2.11 ft at 11:24AM Oct 22, 2018Observed: 2.13 ft at 11:30AM Oct 22, 2018Observed: 2.15 ft at 11:36AM Oct 22, 2018Observed: 2.16 ft at 11:42AM Oct 22, 2018Observed: 2.17 ft at 11:48AM Oct 22, 2018Observed: 2.18 ft at 11:54AM Oct 22, 2018Observed: 2.18 ft at 12:00PM Oct 22, 2018Highest Observation: 2.19 ft at 12:06PM Oct 22, 2018Highest Observation: 2.19 ft at 12:12PM Oct 22, 2018Observed: 2.18 ft at 12:18PM Oct 22, 2018Highest Observation: 2.19 ft at 12:24PM Oct 22, 2018Highest Observation: 2.19 ft at 12:30PM Oct 22, 2018Highest Observation: 2.19 ft at 12:36PM Oct 22, 2018Highest Observation: 2.19 ft at 12:42PM Oct 22, 2018Observed: 2.18 ft at 12:48PM Oct 22, 2018Highest Observation: 2.19 ft at 12:54PM Oct 22, 2018Highest Observation: 2.19 ft at 1:00PM Oct 22, 2018Observed: 2.18 ft at 1:06PM Oct 22, 2018Observed: 2.18 ft at 1:12PM Oct 22, 2018Observed: 2.17 ft at 1:18PM Oct 22, 2018Observed: 2.15 ft at 1:24PM Oct 22, 2018Observed: 2.15 ft at 1:30PM Oct 22, 2018Observed: 2.14 ft at 1:36PM Oct 22, 2018Observed: 2.13 ft at 1:42PM Oct 22, 2018Observed: 2.12 ft at 1:48PM Oct 22, 2018Observed: 2.11 ft at 1:54PM Oct 22, 2018Observed: 2.1 ft at 2:00PM Oct 22, 2018Observed: 2.08 ft at 2:06PM Oct 22, 2018Observed: 2.05 ft at 2:12PM Oct 22, 2018Observed: 2.04 ft at 2:18PM Oct 22, 2018Observed: 2.02 ft at 2:24PM Oct 22, 2018Observed: 2.01 ft at 2:30PM Oct 22, 2018Observed: 1.98 ft at 2:36PM Oct 22, 2018Observed: 1.95 ft at 2:42PM Oct 22, 2018Observed: 1.91 ft at 2:48PM Oct 22, 2018Observed: 1.88 ft at 2:54PM Oct 22, 2018Observed: 1.86 ft at 3:00PM Oct 22, 2018Observed: 1.83 ft at 3:06PM Oct 22, 2018Observed: 1.8 ft at 3:12PM Oct 22, 2018Observed: 1.77 ft at 3:18PM Oct 22, 2018Observed: 1.74 ft at 3:24PM Oct 22, 2018Observed: 1.69 ft at 3:30PM Oct 22, 2018Observed: 1.66 ft at 3:36PM Oct 22, 2018Observed: 1.63 ft at 3:42PM Oct 22, 2018Observed: 1.6 ft at 3:48PM Oct 22, 2018Observed: 1.58 ft at 3:54PM Oct 22, 2018Observed: 1.55 ft at 4:00PM Oct 22, 2018Observed: 1.5 ft at 4:06PM Oct 22, 2018Observed: 1.47 ft at 4:12PM Oct 22, 2018Observed: 1.45 ft at 4:18PM Oct 22, 2018Observed: 1.41 ft at 4:24PM Oct 22, 2018Observed: 1.39 ft at 4:30PM Oct 22, 2018Observed: 1.35 ft at 4:36PM Oct 22, 2018Observed: 1.33 ft at 4:42PM Oct 22, 2018Observed: 1.29 ft at 4:48PM Oct 22, 2018Observed: 1.26 ft at 4:54PM Oct 22, 2018Observed: 1.23 ft at 5:00PM Oct 22, 2018Observed: 1.2 ft at 5:06PM Oct 22, 2018Observed: 1.15 ft at 5:12PM Oct 22, 2018Observed: 1.12 ft at 5:18PM Oct 22, 2018Observed: 1.09 ft at 5:24PM Oct 22, 2018Observed: 1.07 ft at 5:30PM Oct 22, 2018Observed: 1.04 ft at 5:36PM Oct 22, 2018Observed: 1.02 ft at 5:42PM Oct 22, 2018Observed: 1 ft at 5:48PM Oct 22, 2018Observed: 0.97 ft at 5:54PM Oct 22, 2018Observed: 0.94 ft at 6:00PM Oct 22, 2018Observed: 0.93 ft at 6:06PM Oct 22, 2018Observed: 0.92 ft at 6:12PM Oct 22, 2018Observed: 0.9 ft at 6:18PM Oct 22, 2018Observed: 0.9 ft at 6:24PM Oct 22, 2018Observed: 0.89 ft at 6:30PM Oct 22, 2018Observed: 0.87 ft at 6:36PM Oct 22, 2018Observed: 0.87 ft at 6:42PM Oct 22, 2018Observed: 0.87 ft at 6:48PM Oct 22, 2018Observed: 0.86 ft at 6:54PM Oct 22, 2018Observed: 0.85 ft at 7:00PM Oct 22, 2018Observed: 0.85 ft at 7:06PM Oct 22, 2018Observed: 0.86 ft at 7:12PM Oct 22, 2018Observed: 0.87 ft at 7:18PM Oct 22, 2018Observed: 0.87 ft at 7:24PM Oct 22, 2018Observed: 0.87 ft at 7:30PM Oct 22, 2018Observed: 0.89 ft at 7:36PM Oct 22, 2018Observed: 0.88 ft at 7:42PM Oct 22, 2018Observed: 0.9 ft at 7:48PM Oct 22, 2018Observed: 0.95 ft at 8:06PM Oct 22, 2018Observed: 0.98 ft at 8:12PM Oct 22, 2018Observed: 1.01 ft at 8:18PM Oct 22, 2018Observed: 1.04 ft at 8:24PM Oct 22, 2018Observed: 1.06 ft at 8:30PM Oct 22, 2018Observed: 1.09 ft at 8:36PM Oct 22, 2018Observed: 1.12 ft at 8:42PM Oct 22, 2018Observed: 1.16 ft at 8:48PM Oct 22, 2018Observed: 1.2 ft at 8:54PM Oct 22, 2018Observed: 1.25 ft at 9:00PM Oct 22, 2018Observed: 1.3 ft at 9:06PM Oct 22, 2018Observed: 1.35 ft at 9:12PM Oct 22, 2018Observed: 1.39 ft at 9:18PM Oct 22, 2018Observed: 1.43 ft at 9:24PM Oct 22, 2018Observed: 1.49 ft at 9:30PM Oct 22, 2018Observed: 1.54 ft at 9:36PM Oct 22, 2018Observed: 1.58 ft at 9:42PM Oct 22, 2018Observed: 1.64 ft at 9:48PM Oct 22, 2018Observed: 1.69 ft at 9:54PM Oct 22, 2018Observed: 1.74 ft at 10:00PM Oct 22, 2018Observed: 1.79 ft at 10:06PM Oct 22, 2018Forecast: 2 ft 11:00PM Oct 22, 2018Forecast: 2.5 ft 12:00AM Oct 23, 2018Highest Forecast: 2.6 ft 1:00AM Oct 23, 2018Forecast: 2.4 ft 2:00AM Oct 23, 2018Forecast: 1.8 ft 3:00AM Oct 23, 2018Forecast: 1.4 ft 4:00AM Oct 23, 2018Forecast: 1 ft 5:00AM Oct 23, 2018Forecast: 0.6 ft 6:00AM Oct 23, 2018Forecast: 0.5 ft 7:00AM Oct 23, 2018Forecast: 0.2 ft 8:00AM Oct 23, 2018Forecast: 0.5 ft 9:00AM Oct 23, 2018Forecast: 1 ft 10:00AM Oct 23, 2018Forecast: 1.5 ft 11:00AM Oct 23, 2018Forecast: 2 ft 12:00PM Oct 23, 2018Forecast: 2.2 ft 1:00PM Oct 23, 2018Forecast: 2.1 ft 2:00PM Oct 23, 2018Forecast: 1.7 ft 3:00PM Oct 23, 2018Forecast: 1.4 ft 4:00PM Oct 23, 2018Forecast: 0.9 ft 5:00PM Oct 23, 2018Forecast: 0.5 ft 6:00PM Oct 23, 2018Forecast: 0.1 ft 7:00PM Oct 23, 2018Forecast: 0 ft 8:00PM Oct 23, 2018Forecast: 0.1 ft 9:00PM Oct 23, 2018Forecast: 0.5 ft 10:00PM Oct 23, 2018Forecast: 0.9 ft 11:00PM Oct 23, 2018Forecast: 1.4 ft 12:00AM Oct 24, 2018Forecast: 1.6 ft 1:00AM Oct 24, 2018Forecast: 1.6 ft 2:00AM Oct 24, 2018Forecast: 1.3 ft 3:00AM Oct 24, 2018Forecast: 0.9 ft 4:00AM Oct 24, 2018Forecast: 0.4 ft 5:00AM Oct 24, 2018Forecast: 0 ft 6:00AM Oct 24, 2018Forecast: -0.3 ft 7:00AM Oct 24, 2018Forecast: -0.4 ft 8:00AM Oct 24, 2018Forecast: -0.3 ft 9:00AM Oct 24, 2018Forecast: 0 ft 10:00AM Oct 24, 2018Forecast: 0.6 ft 11:00AM Oct 24, 2018Forecast: 1.1 ft 12:00PM Oct 24, 2018Forecast: 1.5 ft 1:00PM Oct 24, 2018Forecast: 1.6 ft 2:00PM Oct 24, 2018Forecast: 1.5 ft 3:00PM Oct 24, 2018Forecast: 1.1 ft 4:00PM Oct 24, 2018Forecast: 0.7 ft 5:00PM Oct 24, 2018Forecast: 0.3 ft 6:00PM Oct 24, 2018Forecast: -0.1 ft 7:00PM Oct 24, 2018Forecast: -0.3 ft 8:00PM Oct 24, 2018Forecast: -0.4 ft 9:00PM Oct 24, 2018Forecast: -0.2 ft 10:00PM Oct 24, 2018Forecast: 0.2 ft 11:00PM Oct 24, 2018Forecast: 0.7 ft 12:00AM Oct 25, 2018Forecast: 1.2 ft 1:00AM Oct 25, 2018Forecast: 1.4 ft 2:00AM Oct 25, 2018Forecast: 1.3 ft 3:00AM Oct 25, 2018Forecast: 1 ft 4:00AM Oct 25, 2018Forecast: 0.6 ft 5:00AM Oct 25, 2018Forecast: 0.2 ft 6:00AM Oct 25, 2018Forecast: -0.2 ft 7:00AM Oct 25, 2018Forecast: -0.4 ft 8:00AM Oct 25, 2018Forecast: -0.5 ft 9:00AM Oct 25, 2018Forecast: -0.2 ft 10:00AM Oct 25, 2018Forecast: 0.3 ft 11:00AM Oct 25, 2018Forecast: 0.9 ft 12:00PM Oct 25, 2018Forecast: 1.5 ft 1:00PM Oct 25, 2018NOS - National Ocean ServiceBISM2(plotting HMIRG) Graph Created (10:30PM Oct 22, 2018)ObservedForecast (issued 2:11PM Oct 22)Latest observed value: 1.79 ft at 10:06 PM EDT 22-Oct-2018. Flood Stage is 3.2 ft
Printable Image
About this graph
Tabular Data (UTC)
Tabular Data (EDT)
XML Data
RSS Files
Datum: Not Available
Metadata
NOTE: Tide Forecasts are a total water level forecast referenced to mean lower low water.  Please refer to Coastal Flood Advisories and Warnings for official water level forecasts during periods of coastal flooding.  During tropical cyclones, please refer here for additional storm surge information.

NOTE: Please click here for Coastal Flooding Thresholds definitions.

NOTE: Forecasts for the Chesapeake Bay at BISHOPS HEAD 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: 4.2
Moderate Flood Stage: 3.7
Flood Stage: 3.2
Action Stage: 3
Low Stage (in feet): -1

Historic Crests
(1) 4.50 ft on 03/07/2018
(2) 4.34 ft on 10/30/2012
(3) 4.32 ft on 04/16/2011
(4) 4.29 ft on 05/12/2008
(5) 4.27 ft on 02/09/2016
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 4.50 ft on 03/07/2018
(2) 3.71 ft on 11/09/2017
(3) 3.45 ft on 11/06/2017
(4) 3.90 ft on 09/20/2017
(5) 3.51 ft on 08/30/2017
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) -1.78 ft on 01/03/2008
(2) -1.70 ft on 02/26/2012
(3) -1.48 ft on 02/24/2009
(4) -1.47 ft on 03/06/2007
(5) -1.43 ft on 01/21/2007
Show More Low Water Records
Zoom Level:11
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
Photos
(1) Bishop Head Tidal Gage looking southwest
About This Location Collapse

Latitude: 38.220000° N, Longitude: 76.038333° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 3.2 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 -1.25 2.0 Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29 -0.50 2.75 Older USGS topographic maps, NGVD29 benchmarks
MSL -1.01 2.24 Older USGS topographic maps, MSL benchmarks
Other Not Available Not Available  
Additional Information Collapse

Hydromet Outlook
24 Hour Hydrometerological Outlook Link to Graphic
Hydro Forecast Discussion
Hydrologist's Forecast Discussion
Significant Flood Outlook
Significant River Flood Outlook Link to Graphic
Flash Flood Guidance
Flash Flood Guidance Link to Graphic

Additional Water and Weather Topics from the Middle Atlantic River Forecast Center (MARFC):
MARFC Home Page, Current Hazards, Current Conditions James River, Current Conditions Appomattox River,
Water Resources, Observed precipitation, Radar, Tropical Weather, Climate,
Flood History, About the MARFC, Contact Us
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
Wakefield Weather Forecast Office
10009 General Mahone Hwy
Wakefield, VA 23888
(757) 899-4200
Ask Questions/Webmaster
Page last modified: 21-Dec-2016 10:38 PM 		Disclaimer
Credits
Glossary 		Privacy Policy
About Us
Career Opportunities