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ALERT: December 5th update on the status of the nationwide data transmission error preventing stream gauge data collected at affected locations from being displayed on the Advanced Hydrologic Prediction Services (AHPS) webpages. As of 11/08/2018, The USGS has restored all impacted operational stream gauges to transmitting status. The status map of gauge outages from other agencies is here. The outage map will be updated each Thursday. 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: 0.44 ft at 10:48PM Dec 07, 2018Observed: 0.5 ft at 10:54PM Dec 07, 2018Observed: 0.55 ft at 11:00PM Dec 07, 2018Observed: 0.6 ft at 11:06PM Dec 07, 2018Observed: 0.65 ft at 11:12PM Dec 07, 2018Observed: 0.7 ft at 11:18PM Dec 07, 2018Observed: 0.74 ft at 11:24PM Dec 07, 2018Observed: 0.79 ft at 11:30PM Dec 07, 2018Observed: 0.84 ft at 11:36PM Dec 07, 2018Observed: 0.9 ft at 11:42PM Dec 07, 2018Observed: 0.94 ft at 11:48PM Dec 07, 2018Observed: 0.99 ft at 11:54PM Dec 07, 2018Observed: 1.04 ft at 12:00AM Dec 08, 2018Observed: 1.09 ft at 12:06AM Dec 08, 2018Observed: 1.13 ft at 12:12AM Dec 08, 2018Observed: 1.18 ft at 12:18AM Dec 08, 2018Observed: 1.22 ft at 12:24AM Dec 08, 2018Observed: 1.26 ft at 12:30AM Dec 08, 2018Observed: 1.3 ft at 12:36AM Dec 08, 2018Observed: 1.33 ft at 12:42AM Dec 08, 2018Observed: 1.37 ft at 12:48AM Dec 08, 2018Observed: 1.39 ft at 12:54AM Dec 08, 2018Observed: 1.42 ft at 1:00AM Dec 08, 2018Observed: 1.45 ft at 1:06AM Dec 08, 2018Observed: 1.48 ft at 1:12AM Dec 08, 2018Observed: 1.5 ft at 1:18AM Dec 08, 2018Observed: 1.52 ft at 1:24AM Dec 08, 2018Observed: 1.54 ft at 1:30AM Dec 08, 2018Observed: 1.56 ft at 1:36AM Dec 08, 2018Observed: 1.57 ft at 1:42AM Dec 08, 2018Observed: 1.57 ft at 1:48AM Dec 08, 2018Observed: 1.57 ft at 1:54AM Dec 08, 2018Observed: 1.57 ft at 2:00AM Dec 08, 2018Observed: 1.56 ft at 2:06AM Dec 08, 2018Observed: 1.56 ft at 2:12AM Dec 08, 2018Observed: 1.56 ft at 2:18AM Dec 08, 2018Observed: 1.55 ft at 2:24AM Dec 08, 2018Observed: 1.54 ft at 2:30AM Dec 08, 2018Observed: 1.53 ft at 2:36AM Dec 08, 2018Observed: 1.51 ft at 2:42AM Dec 08, 2018Observed: 1.49 ft at 2:48AM Dec 08, 2018Observed: 1.48 ft at 2:54AM Dec 08, 2018Observed: 1.46 ft at 3:00AM Dec 08, 2018Observed: 1.44 ft at 3:06AM Dec 08, 2018Observed: 1.41 ft at 3:12AM Dec 08, 2018Observed: 1.39 ft at 3:18AM Dec 08, 2018Observed: 1.36 ft at 3:24AM Dec 08, 2018Observed: 1.3 ft at 3:36AM Dec 08, 2018Observed: 1.27 ft at 3:42AM Dec 08, 2018Observed: 1.24 ft at 3:48AM Dec 08, 2018Observed: 1.21 ft at 3:54AM Dec 08, 2018Observed: 1.18 ft at 4:00AM Dec 08, 2018Observed: 1.14 ft at 4:06AM Dec 08, 2018Observed: 1.1 ft at 4:12AM Dec 08, 2018Observed: 1.07 ft at 4:18AM Dec 08, 2018Observed: 1.03 ft at 4:24AM Dec 08, 2018Observed: 0.95 ft at 4:36AM Dec 08, 2018Observed: 0.91 ft at 4:42AM Dec 08, 2018Observed: 0.88 ft at 4:48AM Dec 08, 2018Observed: 0.83 ft at 4:54AM Dec 08, 2018Observed: 0.79 ft at 5:00AM Dec 08, 2018Observed: 0.75 ft at 5:06AM Dec 08, 2018Observed: 0.72 ft at 5:12AM Dec 08, 2018Observed: 0.68 ft at 5:18AM Dec 08, 2018Observed: 0.64 ft at 5:24AM Dec 08, 2018Observed: 0.61 ft at 5:30AM Dec 08, 2018Observed: 0.58 ft at 5:36AM Dec 08, 2018Observed: 0.55 ft at 5:42AM Dec 08, 2018Observed: 0.52 ft at 5:48AM Dec 08, 2018Observed: 0.49 ft at 5:54AM Dec 08, 2018Observed: 0.45 ft at 6:00AM Dec 08, 2018Observed: 0.41 ft at 6:06AM Dec 08, 2018Observed: 0.38 ft at 6:12AM Dec 08, 2018Observed: 0.35 ft at 6:18AM Dec 08, 2018Observed: 0.32 ft at 6:24AM Dec 08, 2018Observed: 0.3 ft at 6:30AM Dec 08, 2018Observed: 0.27 ft at 6:36AM Dec 08, 2018Observed: 0.25 ft at 6:42AM Dec 08, 2018Observed: 0.21 ft at 6:48AM Dec 08, 2018Observed: 0.19 ft at 6:54AM Dec 08, 2018Observed: 0.17 ft at 7:00AM Dec 08, 2018Observed: 0.15 ft at 7:06AM Dec 08, 2018Observed: 0.13 ft at 7:12AM Dec 08, 2018Observed: 0.11 ft at 7:18AM Dec 08, 2018Observed: 0.1 ft at 7:24AM Dec 08, 2018Observed: 0.08 ft at 7:30AM Dec 08, 2018Observed: 0.08 ft at 7:36AM Dec 08, 2018Observed: 0.07 ft at 7:42AM Dec 08, 2018Observed: 0.07 ft at 7:48AM Dec 08, 2018Observed: 0.06 ft at 7:54AM Dec 08, 2018Observed: 0.07 ft at 8:00AM Dec 08, 2018Observed: 0.08 ft at 8:06AM Dec 08, 2018Observed: 0.09 ft at 8:12AM Dec 08, 2018Observed: 0.11 ft at 8:18AM Dec 08, 2018Observed: 0.12 ft at 8:24AM Dec 08, 2018Observed: 0.14 ft at 8:30AM Dec 08, 2018Observed: 0.16 ft at 8:36AM Dec 08, 2018Observed: 0.18 ft at 8:42AM Dec 08, 2018Observed: 0.21 ft at 8:48AM Dec 08, 2018Observed: 0.24 ft at 8:54AM Dec 08, 2018Observed: 0.28 ft at 9:00AM Dec 08, 2018Observed: 0.31 ft at 9:06AM Dec 08, 2018Observed: 0.34 ft at 9:12AM Dec 08, 2018Observed: 0.38 ft at 9:18AM Dec 08, 2018Observed: 0.42 ft at 9:24AM Dec 08, 2018Observed: 0.47 ft at 9:30AM Dec 08, 2018Observed: 0.52 ft at 9:36AM Dec 08, 2018Observed: 0.57 ft at 9:42AM Dec 08, 2018Observed: 0.62 ft at 9:48AM Dec 08, 2018Observed: 0.68 ft at 9:54AM Dec 08, 2018Observed: 0.73 ft at 10:00AM Dec 08, 2018Observed: 0.78 ft at 10:06AM Dec 08, 2018Observed: 0.84 ft at 10:12AM Dec 08, 2018Observed: 0.9 ft at 10:18AM Dec 08, 2018Observed: 0.96 ft at 10:24AM Dec 08, 2018Observed: 1.02 ft at 10:30AM Dec 08, 2018Observed: 1.08 ft at 10:36AM Dec 08, 2018Observed: 1.15 ft at 10:42AM Dec 08, 2018Observed: 1.21 ft at 10:48AM Dec 08, 2018Observed: 1.27 ft at 10:54AM Dec 08, 2018Observed: 1.33 ft at 11:00AM Dec 08, 2018Observed: 1.4 ft at 11:06AM Dec 08, 2018Observed: 1.45 ft at 11:12AM Dec 08, 2018Observed: 1.52 ft at 11:18AM Dec 08, 2018Observed: 1.58 ft at 11:24AM Dec 08, 2018Observed: 1.64 ft at 11:30AM Dec 08, 2018Observed: 1.7 ft at 11:36AM Dec 08, 2018Observed: 1.76 ft at 11:42AM Dec 08, 2018Observed: 1.81 ft at 11:48AM Dec 08, 2018Observed: 1.86 ft at 11:54AM Dec 08, 2018Observed: 1.91 ft at 12:00PM Dec 08, 2018Observed: 1.96 ft at 12:06PM Dec 08, 2018Observed: 2 ft at 12:12PM Dec 08, 2018Observed: 2.04 ft at 12:18PM Dec 08, 2018Observed: 2.08 ft at 12:24PM Dec 08, 2018Observed: 2.12 ft at 12:30PM Dec 08, 2018Observed: 2.15 ft at 12:36PM Dec 08, 2018Observed: 2.18 ft at 12:42PM Dec 08, 2018Observed: 2.21 ft at 12:48PM Dec 08, 2018Observed: 2.23 ft at 12:54PM Dec 08, 2018Observed: 2.25 ft at 1:00PM Dec 08, 2018Observed: 2.27 ft at 1:06PM Dec 08, 2018Observed: 2.29 ft at 1:12PM Dec 08, 2018Observed: 2.3 ft at 1:18PM Dec 08, 2018Observed: 2.31 ft at 1:24PM Dec 08, 2018Observed: 2.31 ft at 1:30PM Dec 08, 2018Highest Observation: 2.33 ft at 1:36PM Dec 08, 2018Highest Observation: 2.33 ft at 1:42PM Dec 08, 2018Highest Observation: 2.33 ft at 1:48PM Dec 08, 2018Highest Observation: 2.33 ft at 1:54PM Dec 08, 2018Highest Observation: 2.33 ft at 2:00PM Dec 08, 2018Highest Observation: 2.33 ft at 2:06PM Dec 08, 2018Observed: 2.32 ft at 2:12PM Dec 08, 2018Observed: 2.32 ft at 2:18PM Dec 08, 2018Observed: 2.32 ft at 2:24PM Dec 08, 2018Observed: 2.3 ft at 2:36PM Dec 08, 2018Observed: 2.29 ft at 2:42PM Dec 08, 2018Observed: 2.28 ft at 2:48PM Dec 08, 2018Observed: 2.27 ft at 2:54PM Dec 08, 2018Observed: 2.24 ft at 3:00PM Dec 08, 2018Observed: 2.23 ft at 3:06PM Dec 08, 2018Observed: 2.21 ft at 3:12PM Dec 08, 2018Observed: 2.19 ft at 3:18PM Dec 08, 2018Observed: 2.16 ft at 3:24PM Dec 08, 2018Observed: 2.13 ft at 3:30PM Dec 08, 2018Observed: 2.1 ft at 3:36PM Dec 08, 2018Observed: 2.07 ft at 3:42PM Dec 08, 2018Observed: 2.04 ft at 3:48PM Dec 08, 2018Observed: 2 ft at 3:54PM Dec 08, 2018Observed: 1.97 ft at 4:00PM Dec 08, 2018Observed: 1.93 ft at 4:06PM Dec 08, 2018Observed: 1.89 ft at 4:12PM Dec 08, 2018Observed: 1.84 ft at 4:18PM Dec 08, 2018Observed: 1.8 ft at 4:24PM Dec 08, 2018Observed: 1.73 ft at 4:36PM Dec 08, 2018Observed: 1.68 ft at 4:42PM Dec 08, 2018Observed: 1.64 ft at 4:48PM Dec 08, 2018Observed: 1.59 ft at 4:54PM Dec 08, 2018Observed: 1.55 ft at 5:00PM Dec 08, 2018Observed: 1.5 ft at 5:06PM Dec 08, 2018Observed: 1.45 ft at 5:12PM Dec 08, 2018Observed: 1.41 ft at 5:18PM Dec 08, 2018Observed: 1.37 ft at 5:24PM Dec 08, 2018Observed: 1.32 ft at 5:30PM Dec 08, 2018Observed: 1.28 ft at 5:36PM Dec 08, 2018Observed: 1.24 ft at 5:42PM Dec 08, 2018Observed: 1.19 ft at 5:48PM Dec 08, 2018Observed: 1.15 ft at 5:54PM Dec 08, 2018Observed: 1.11 ft at 6:00PM Dec 08, 2018Observed: 1.07 ft at 6:06PM Dec 08, 2018Observed: 1.03 ft at 6:12PM Dec 08, 2018Observed: 0.99 ft at 6:18PM Dec 08, 2018Observed: 0.94 ft at 6:24PM Dec 08, 2018Observed: 0.9 ft at 6:30PM Dec 08, 2018Observed: 0.86 ft at 6:36PM Dec 08, 2018Observed: 0.83 ft at 6:42PM Dec 08, 2018Observed: 0.73 ft at 7:00PM Dec 08, 2018Observed: 0.69 ft at 7:06PM Dec 08, 2018Observed: 0.67 ft at 7:12PM Dec 08, 2018Observed: 0.64 ft at 7:18PM Dec 08, 2018Observed: 0.61 ft at 7:24PM Dec 08, 2018Observed: 0.58 ft at 7:30PM Dec 08, 2018Observed: 0.56 ft at 7:36PM Dec 08, 2018Observed: 0.53 ft at 7:42PM Dec 08, 2018Observed: 0.51 ft at 7:48PM Dec 08, 2018Observed: 0.49 ft at 7:54PM Dec 08, 2018Observed: 0.47 ft at 8:00PM Dec 08, 2018Observed: 0.45 ft at 8:06PM Dec 08, 2018Observed: 0.44 ft at 8:12PM Dec 08, 2018Observed: 0.41 ft at 8:18PM Dec 08, 2018Observed: 0.4 ft at 8:24PM Dec 08, 2018Observed: 0.39 ft at 8:30PM Dec 08, 2018Observed: 0.37 ft at 8:36PM Dec 08, 2018Observed: 0.36 ft at 8:42PM Dec 08, 2018Observed: 0.35 ft at 8:48PM Dec 08, 2018Observed: 0.34 ft at 8:54PM Dec 08, 2018Observed: 0.33 ft at 9:00PM Dec 08, 2018Observed: 0.33 ft at 9:06PM Dec 08, 2018Observed: 0.33 ft at 9:12PM Dec 08, 2018Observed: 0.33 ft at 9:18PM Dec 08, 2018Observed: 0.33 ft at 9:24PM Dec 08, 2018Observed: 0.34 ft at 9:30PM Dec 08, 2018Observed: 0.34 ft at 9:36PM Dec 08, 2018Observed: 0.34 ft at 9:42PM Dec 08, 2018Observed: 0.36 ft at 9:48PM Dec 08, 2018Observed: 0.37 ft at 9:54PM Dec 08, 2018Observed: 0.39 ft at 10:00PM Dec 08, 2018Observed: 0.4 ft at 10:06PM Dec 08, 2018Observed: 0.43 ft at 10:12PM Dec 08, 2018Observed: 0.46 ft at 10:18PM Dec 08, 2018Observed: 0.48 ft at 10:24PM Dec 08, 2018Observed: 0.5 ft at 10:30PM Dec 08, 2018Observed: 0.53 ft at 10:36PM Dec 08, 2018Observed: 0.57 ft at 10:42PM Dec 08, 2018Observed: 0.59 ft at 10:48PM Dec 08, 2018Observed: 0.61 ft at 10:54PM Dec 08, 2018Observed: 0.66 ft at 11:00PM Dec 08, 2018Observed: 0.7 ft at 11:06PM Dec 08, 2018Observed: 0.74 ft at 11:12PM Dec 08, 2018Observed: 0.78 ft at 11:18PM Dec 08, 2018Observed: 0.83 ft at 11:24PM Dec 08, 2018Observed: 0.87 ft at 11:30PM Dec 08, 2018Observed: 0.92 ft at 11:36PM Dec 08, 2018Observed: 0.95 ft at 11:42PM Dec 08, 2018Observed: 0.99 ft at 11:48PM Dec 08, 2018Observed: 1.05 ft at 11:54PM Dec 08, 2018Observed: 1.09 ft at 12:00AM Dec 09, 2018Observed: 1.13 ft at 12:06AM Dec 09, 2018Observed: 1.18 ft at 12:12AM Dec 09, 2018Observed: 1.22 ft at 12:18AM Dec 09, 2018Observed: 1.28 ft at 12:24AM Dec 09, 2018Observed: 1.31 ft at 12:30AM Dec 09, 2018Observed: 1.37 ft at 12:36AM Dec 09, 2018Observed: 1.41 ft at 12:42AM Dec 09, 2018Observed: 1.43 ft at 12:48AM Dec 09, 2018Observed: 1.48 ft at 12:54AM Dec 09, 2018Observed: 1.5 ft at 1:00AM Dec 09, 2018Observed: 1.53 ft at 1:06AM Dec 09, 2018Observed: 1.58 ft at 1:12AM Dec 09, 2018Observed: 1.63 ft at 1:18AM Dec 09, 2018Observed: 1.66 ft at 1:24AM Dec 09, 2018Observed: 1.69 ft at 1:30AM Dec 09, 2018Observed: 1.72 ft at 1:36AM Dec 09, 2018Observed: 1.73 ft at 1:42AM Dec 09, 2018Observed: 1.77 ft at 1:48AM Dec 09, 2018Observed: 1.8 ft at 1:54AM Dec 09, 2018Observed: 1.84 ft at 2:06AM Dec 09, 2018Observed: 1.86 ft at 2:12AM Dec 09, 2018Observed: 1.85 ft at 2:18AM Dec 09, 2018Observed: 1.87 ft at 2:24AM Dec 09, 2018Observed: 1.89 ft at 2:30AM Dec 09, 2018Observed: 1.89 ft at 2:36AM Dec 09, 2018Observed: 1.9 ft at 2:42AM Dec 09, 2018Observed: 1.89 ft at 2:48AM Dec 09, 2018Observed: 1.88 ft at 2:54AM Dec 09, 2018Observed: 1.88 ft at 3:00AM Dec 09, 2018Observed: 1.86 ft at 3:06AM Dec 09, 2018Observed: 1.85 ft at 3:12AM Dec 09, 2018Observed: 1.83 ft at 3:18AM Dec 09, 2018Observed: 1.82 ft at 3:24AM Dec 09, 2018Observed: 1.77 ft at 3:36AM Dec 09, 2018Observed: 1.74 ft at 3:42AM Dec 09, 2018Observed: 1.72 ft at 3:48AM Dec 09, 2018Observed: 1.69 ft at 3:54AM Dec 09, 2018Observed: 1.67 ft at 4:00AM Dec 09, 2018Observed: 1.64 ft at 4:06AM Dec 09, 2018Observed: 1.6 ft at 4:12AM Dec 09, 2018Observed: 1.56 ft at 4:18AM Dec 09, 2018Observed: 1.53 ft at 4:24AM Dec 09, 2018Observed: 1.5 ft at 4:30AM Dec 09, 2018Observed: 1.46 ft at 4:36AM Dec 09, 2018Observed: 1.41 ft at 4:42AM Dec 09, 2018Observed: 1.37 ft at 4:48AM Dec 09, 2018Observed: 1.32 ft at 4:54AM Dec 09, 2018Observed: 1.3 ft at 5:00AM Dec 09, 2018Observed: 1.23 ft at 5:06AM Dec 09, 2018Observed: 1.2 ft at 5:12AM Dec 09, 2018Observed: 1.15 ft at 5:18AM Dec 09, 2018Observed: 1.12 ft at 5:24AM Dec 09, 2018Observed: 1.08 ft at 5:30AM Dec 09, 2018Observed: 1.03 ft at 5:36AM Dec 09, 2018Observed: 0.98 ft at 5:42AM Dec 09, 2018Observed: 0.94 ft at 5:48AM Dec 09, 2018Observed: 0.91 ft at 5:54AM Dec 09, 2018Observed: 0.86 ft at 6:00AM Dec 09, 2018Observed: 0.83 ft at 6:06AM Dec 09, 2018Observed: 0.76 ft at 6:18AM Dec 09, 2018Observed: 0.74 ft at 6:24AM Dec 09, 2018Observed: 0.69 ft at 6:30AM Dec 09, 2018Observed: 0.65 ft at 6:36AM Dec 09, 2018Observed: 0.62 ft at 6:42AM Dec 09, 2018Observed: 0.58 ft at 6:48AM Dec 09, 2018Observed: 0.56 ft at 6:54AM Dec 09, 2018Observed: 0.52 ft at 7:00AM Dec 09, 2018Observed: 0.5 ft at 7:06AM Dec 09, 2018Observed: 0.46 ft at 7:12AM Dec 09, 2018Observed: 0.43 ft at 7:18AM Dec 09, 2018Observed: 0.41 ft at 7:24AM Dec 09, 2018Observed: 0.38 ft at 7:30AM Dec 09, 2018Observed: 0.36 ft at 7:36AM Dec 09, 2018Observed: 0.34 ft at 7:42AM Dec 09, 2018Observed: 0.31 ft at 7:48AM Dec 09, 2018Observed: 0.3 ft at 7:54AM Dec 09, 2018Observed: 0.28 ft at 8:00AM Dec 09, 2018Observed: 0.25 ft at 8:06AM Dec 09, 2018Observed: 0.24 ft at 8:12AM Dec 09, 2018Observed: 0.23 ft at 8:18AM Dec 09, 2018Observed: 0.21 ft at 8:24AM Dec 09, 2018Observed: 0.2 ft at 8:30AM Dec 09, 2018Observed: 0.19 ft at 8:36AM Dec 09, 2018Observed: 0.19 ft at 8:42AM Dec 09, 2018Observed: 0.19 ft at 8:48AM Dec 09, 2018Observed: 0.18 ft at 8:54AM Dec 09, 2018Observed: 0.17 ft at 9:00AM Dec 09, 2018Observed: 0.17 ft at 9:06AM Dec 09, 2018Observed: 0.17 ft at 9:12AM Dec 09, 2018Observed: 0.16 ft at 9:18AM Dec 09, 2018Observed: 0.18 ft at 9:24AM Dec 09, 2018Observed: 0.19 ft at 9:30AM Dec 09, 2018Observed: 0.2 ft at 9:36AM Dec 09, 2018Observed: 0.22 ft at 9:42AM Dec 09, 2018Observed: 0.23 ft at 9:48AM Dec 09, 2018Observed: 0.26 ft at 9:54AM Dec 09, 2018Observed: 0.27 ft at 10:00AM Dec 09, 2018Observed: 0.29 ft at 10:06AM Dec 09, 2018Observed: 0.31 ft at 10:12AM Dec 09, 2018Observed: 0.34 ft at 10:18AM Dec 09, 2018Observed: 0.39 ft at 10:24AM Dec 09, 2018Observed: 0.48 ft at 10:36AM Dec 09, 2018Observed: 0.52 ft at 10:42AM Dec 09, 2018Observed: 0.57 ft at 10:48AM Dec 09, 2018Observed: 0.62 ft at 10:54AM Dec 09, 2018Observed: 0.67 ft at 11:00AM Dec 09, 2018Observed: 0.72 ft at 11:06AM Dec 09, 2018Observed: 0.78 ft at 11:12AM Dec 09, 2018Observed: 0.84 ft at 11:18AM Dec 09, 2018Observed: 0.89 ft at 11:24AM Dec 09, 2018Observed: 0.95 ft at 11:30AM Dec 09, 2018Observed: 1.01 ft at 11:36AM Dec 09, 2018Observed: 1.08 ft at 11:42AM Dec 09, 2018Observed: 1.14 ft at 11:48AM Dec 09, 2018Observed: 1.2 ft at 11:54AM Dec 09, 2018Observed: 1.27 ft at 12:00PM Dec 09, 2018Observed: 1.33 ft at 12:06PM Dec 09, 2018Observed: 1.38 ft at 12:12PM Dec 09, 2018Observed: 1.44 ft at 12:18PM Dec 09, 2018Observed: 1.49 ft at 12:24PM Dec 09, 2018Observed: 1.56 ft at 12:30PM Dec 09, 2018Observed: 1.62 ft at 12:36PM Dec 09, 2018Observed: 1.67 ft at 12:42PM Dec 09, 2018Observed: 1.73 ft at 12:48PM Dec 09, 2018Observed: 1.78 ft at 12:54PM Dec 09, 2018Observed: 1.83 ft at 1:00PM Dec 09, 2018Observed: 1.88 ft at 1:06PM Dec 09, 2018Observed: 1.92 ft at 1:12PM Dec 09, 2018Observed: 1.95 ft at 1:18PM Dec 09, 2018Observed: 1.99 ft at 1:24PM Dec 09, 2018Observed: 2.02 ft at 1:30PM Dec 09, 2018Observed: 2.04 ft at 1:36PM Dec 09, 2018Observed: 2.07 ft at 1:42PM Dec 09, 2018Observed: 2.09 ft at 1:48PM Dec 09, 2018Observed: 2.11 ft at 1:54PM Dec 09, 2018Observed: 2.13 ft at 2:00PM Dec 09, 2018Observed: 2.14 ft at 2:06PM Dec 09, 2018Observed: 2.14 ft at 2:12PM Dec 09, 2018Observed: 2.14 ft at 2:18PM Dec 09, 2018Observed: 2.14 ft at 2:24PM Dec 09, 2018Observed: 2.13 ft at 2:30PM Dec 09, 2018Observed: 2.12 ft at 2:36PM Dec 09, 2018Observed: 2.11 ft at 2:42PM Dec 09, 2018Observed: 2.1 ft at 2:48PM Dec 09, 2018Observed: 2.08 ft at 2:54PM Dec 09, 2018Observed: 2.06 ft at 3:00PM Dec 09, 2018Observed: 2.04 ft at 3:06PM Dec 09, 2018Observed: 2.03 ft at 3:12PM Dec 09, 2018Observed: 2.01 ft at 3:18PM Dec 09, 2018Observed: 2 ft at 3:24PM Dec 09, 2018Observed: 1.99 ft at 3:30PM Dec 09, 2018Observed: 1.98 ft at 3:36PM Dec 09, 2018Observed: 1.96 ft at 3:42PM Dec 09, 2018Observed: 1.94 ft at 3:48PM Dec 09, 2018Observed: 1.91 ft at 3:54PM Dec 09, 2018Observed: 1.87 ft at 4:00PM Dec 09, 2018Observed: 1.84 ft at 4:06PM Dec 09, 2018Observed: 1.81 ft at 4:12PM Dec 09, 2018Observed: 1.78 ft at 4:18PM Dec 09, 2018Observed: 1.75 ft at 4:24PM Dec 09, 2018Observed: 1.72 ft at 4:30PM Dec 09, 2018Observed: 1.68 ft at 4:36PM Dec 09, 2018Observed: 1.65 ft at 4:42PM Dec 09, 2018Observed: 1.61 ft at 4:48PM Dec 09, 2018Observed: 1.57 ft at 4:54PM Dec 09, 2018Observed: 1.53 ft at 5:00PM Dec 09, 2018Observed: 1.5 ft at 5:06PM Dec 09, 2018Observed: 1.48 ft at 5:12PM Dec 09, 2018Observed: 1.45 ft at 5:18PM Dec 09, 2018Observed: 1.42 ft at 5:24PM Dec 09, 2018Observed: 1.38 ft at 5:30PM Dec 09, 2018Observed: 1.33 ft at 5:36PM Dec 09, 2018Observed: 1.29 ft at 5:42PM Dec 09, 2018Observed: 1.25 ft at 5:48PM Dec 09, 2018Observed: 1.21 ft at 5:54PM Dec 09, 2018Observed: 1.15 ft at 6:06PM Dec 09, 2018Observed: 1.11 ft at 6:12PM Dec 09, 2018Observed: 1.07 ft at 6:18PM Dec 09, 2018Observed: 1.04 ft at 6:24PM Dec 09, 2018Observed: 1.01 ft at 6:30PM Dec 09, 2018Observed: 0.97 ft at 6:36PM Dec 09, 2018Observed: 0.94 ft at 6:42PM Dec 09, 2018Observed: 0.9 ft at 6:48PM Dec 09, 2018Observed: 0.83 ft at 7:00PM Dec 09, 2018Observed: 0.8 ft at 7:06PM Dec 09, 2018Observed: 0.77 ft at 7:12PM Dec 09, 2018Observed: 0.75 ft at 7:18PM Dec 09, 2018Observed: 0.73 ft at 7:24PM Dec 09, 2018Observed: 0.7 ft at 7:30PM Dec 09, 2018Observed: 0.68 ft at 7:36PM Dec 09, 2018Observed: 0.66 ft at 7:42PM Dec 09, 2018Observed: 0.63 ft at 7:48PM Dec 09, 2018Observed: 0.63 ft at 7:54PM Dec 09, 2018Observed: 0.59 ft at 8:00PM Dec 09, 2018Observed: 0.58 ft at 8:06PM Dec 09, 2018Observed: 0.56 ft at 8:12PM Dec 09, 2018Observed: 0.54 ft at 8:18PM Dec 09, 2018Observed: 0.53 ft at 8:24PM Dec 09, 2018Observed: 0.51 ft at 8:30PM Dec 09, 2018Observed: 0.5 ft at 8:36PM Dec 09, 2018Observed: 0.49 ft at 8:42PM Dec 09, 2018Observed: 0.47 ft at 8:48PM Dec 09, 2018Observed: 0.48 ft at 8:54PM Dec 09, 2018Observed: 0.46 ft at 9:00PM Dec 09, 2018Observed: 0.47 ft at 9:06PM Dec 09, 2018Observed: 0.45 ft at 9:12PM Dec 09, 2018Observed: 0.46 ft at 9:18PM Dec 09, 2018Observed: 0.45 ft at 9:24PM Dec 09, 2018Observed: 0.44 ft at 9:30PM Dec 09, 2018Observed: 0.45 ft at 9:36PM Dec 09, 2018Observed: 0.43 ft at 9:42PM Dec 09, 2018Observed: 0.43 ft at 9:48PM Dec 09, 2018Observed: 0.42 ft at 9:54PM Dec 09, 2018Observed: 0.42 ft at 10:00PM Dec 09, 2018Observed: 0.45 ft at 10:06PM Dec 09, 2018Observed: 0.47 ft at 10:12PM Dec 09, 2018Forecast: 0.7 ft 11:00PM Dec 09, 2018Forecast: 1.2 ft 12:00AM Dec 10, 2018Forecast: 1.7 ft 1:00AM Dec 10, 2018Forecast: 2.1 ft 2:00AM Dec 10, 2018Forecast: 2.3 ft 3:00AM Dec 10, 2018Forecast: 2.3 ft 4:00AM Dec 10, 2018Forecast: 1.9 ft 5:00AM Dec 10, 2018Forecast: 1.6 ft 6:00AM Dec 10, 2018Forecast: 1.4 ft 7:00AM Dec 10, 2018Forecast: 1.1 ft 8:00AM Dec 10, 2018Forecast: 0.8 ft 9:00AM Dec 10, 2018Forecast: 0.8 ft 10:00AM Dec 10, 2018Forecast: 1 ft 11:00AM Dec 10, 2018Forecast: 1.4 ft 12:00PM Dec 10, 2018Forecast: 2.2 ft 1:00PM Dec 10, 2018Forecast: 2.6 ft 2:00PM Dec 10, 2018Highest Forecast: 2.8 ft 3:00PM Dec 10, 2018Forecast: 2.7 ft 4:00PM Dec 10, 2018Forecast: 2.5 ft 5:00PM Dec 10, 2018Forecast: 2.3 ft 6:00PM Dec 10, 2018Forecast: 1.7 ft 7:00PM Dec 10, 2018Forecast: 1.4 ft 8:00PM Dec 10, 2018Forecast: 1.1 ft 9:00PM Dec 10, 2018Forecast: 1 ft 10:00PM Dec 10, 2018Forecast: 1 ft 11:00PM Dec 10, 2018Forecast: 1.3 ft 12:00AM Dec 11, 2018Forecast: 1.7 ft 1:00AM Dec 11, 2018Forecast: 2.1 ft 2:00AM Dec 11, 2018Forecast: 2.4 ft 3:00AM Dec 11, 2018Forecast: 2.5 ft 4:00AM Dec 11, 2018Forecast: 2.3 ft 5:00AM Dec 11, 2018Forecast: 2.1 ft 6:00AM Dec 11, 2018Forecast: 1.7 ft 7:00AM Dec 11, 2018Forecast: 1.4 ft 8:00AM Dec 11, 2018Forecast: 1.1 ft 9:00AM Dec 11, 2018Forecast: 1 ft 10:00AM Dec 11, 2018Forecast: 1.1 ft 11:00AM Dec 11, 2018Forecast: 1.3 ft 12:00PM Dec 11, 2018Forecast: 1.8 ft 1:00PM Dec 11, 2018Forecast: 2.3 ft 2:00PM Dec 11, 2018Forecast: 2.6 ft 3:00PM Dec 11, 2018Forecast: 2.7 ft 4:00PM Dec 11, 2018Forecast: 2.6 ft 5:00PM Dec 11, 2018Forecast: 2.3 ft 6:00PM Dec 11, 2018Forecast: 1.9 ft 7:00PM Dec 11, 2018Forecast: 1.5 ft 8:00PM Dec 11, 2018Forecast: 1.2 ft 9:00PM Dec 11, 2018Forecast: 1 ft 10:00PM Dec 11, 2018Forecast: 0.9 ft 11:00PM Dec 11, 2018Forecast: 1 ft 12:00AM Dec 12, 2018Forecast: 1.3 ft 1:00AM Dec 12, 2018Forecast: 1.7 ft 2:00AM Dec 12, 2018Forecast: 2.1 ft 3:00AM Dec 12, 2018Forecast: 2.3 ft 4:00AM Dec 12, 2018Forecast: 2.2 ft 5:00AM Dec 12, 2018Forecast: 2 ft 6:00AM Dec 12, 2018Forecast: 1.7 ft 7:00AM Dec 12, 2018Forecast: 1.2 ft 8:00AM Dec 12, 2018Forecast: 0.9 ft 9:00AM Dec 12, 2018Forecast: 0.7 ft 10:00AM Dec 12, 2018Forecast: 0.6 ft 11:00AM Dec 12, 2018Forecast: 0.7 ft 12:00PM Dec 12, 2018Forecast: 1 ft 1:00PM Dec 12, 2018Forecast: 1.4 ft 2:00PM Dec 12, 2018Forecast: 1.8 ft 3:00PM Dec 12, 2018Forecast: 2.1 ft 4:00PM Dec 12, 2018Forecast: 2 ft 5:00PM Dec 12, 2018Forecast: 1.9 ft 6:00PM Dec 12, 2018Forecast: 1.6 ft 7:00PM Dec 12, 2018Forecast: 1.3 ft 8:00PM Dec 12, 2018NOS - National Ocean ServiceBISM2(plotting HMIRG) Graph Created (10:45PM Dec 9, 2018)ObservedForecast (issued 9:40PM Dec 9)Latest observed value: 0.47 ft at 10:12 PM EST 9-Dec-2018. Flood Stage is 3.2 ft
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Tabular Data (UTC)
Tabular Data (EST)
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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 .

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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
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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.
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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  
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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
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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
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