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Hydrograph River at a Glance Download
Rehoboth Bay at Dewey Beach Tide Height (ft)Observed: 1.25 ft at 4:36AM Aug 11, 2018Observed: 1.22 ft at 4:42AM Aug 11, 2018Observed: 1.19 ft at 4:48AM Aug 11, 2018Observed: 1.16 ft at 4:54AM Aug 11, 2018Observed: 1.13 ft at 5:00AM Aug 11, 2018Observed: 1.1 ft at 5:06AM Aug 11, 2018Observed: 1.07 ft at 5:12AM Aug 11, 2018Observed: 1.04 ft at 5:18AM Aug 11, 2018Observed: 1.02 ft at 5:24AM Aug 11, 2018Observed: 1 ft at 5:30AM Aug 11, 2018Observed: 0.98 ft at 5:36AM Aug 11, 2018Observed: 0.97 ft at 5:42AM Aug 11, 2018Observed: 0.95 ft at 5:48AM Aug 11, 2018Observed: 0.95 ft at 5:54AM Aug 11, 2018Observed: 0.93 ft at 6:00AM Aug 11, 2018Observed: 0.93 ft at 6:06AM Aug 11, 2018Observed: 0.92 ft at 6:12AM Aug 11, 2018Observed: 0.92 ft at 6:18AM Aug 11, 2018Observed: 0.93 ft at 6:24AM Aug 11, 2018Observed: 0.95 ft at 6:30AM Aug 11, 2018Observed: 0.97 ft at 6:36AM Aug 11, 2018Observed: 0.99 ft at 6:42AM Aug 11, 2018Observed: 1.01 ft at 6:48AM Aug 11, 2018Observed: 1.03 ft at 6:54AM Aug 11, 2018Observed: 1.07 ft at 7:00AM Aug 11, 2018Observed: 1.09 ft at 7:06AM Aug 11, 2018Observed: 1.12 ft at 7:12AM Aug 11, 2018Observed: 1.14 ft at 7:18AM Aug 11, 2018Observed: 1.17 ft at 7:24AM Aug 11, 2018Observed: 1.19 ft at 7:30AM Aug 11, 2018Observed: 1.23 ft at 7:36AM Aug 11, 2018Observed: 1.26 ft at 7:42AM Aug 11, 2018Observed: 1.29 ft at 7:48AM Aug 11, 2018Observed: 1.31 ft at 7:54AM Aug 11, 2018Observed: 1.34 ft at 8:00AM Aug 11, 2018Observed: 1.39 ft at 8:06AM Aug 11, 2018Observed: 1.42 ft at 8:12AM Aug 11, 2018Observed: 1.46 ft at 8:18AM Aug 11, 2018Observed: 1.48 ft at 8:24AM Aug 11, 2018Observed: 1.52 ft at 8:30AM Aug 11, 2018Observed: 1.58 ft at 8:36AM Aug 11, 2018Observed: 1.6 ft at 8:42AM Aug 11, 2018Observed: 1.65 ft at 8:48AM Aug 11, 2018Observed: 1.68 ft at 8:54AM Aug 11, 2018Observed: 1.74 ft at 9:00AM Aug 11, 2018Observed: 1.77 ft at 9:06AM Aug 11, 2018Observed: 1.8 ft at 9:12AM Aug 11, 2018Observed: 1.84 ft at 9:18AM Aug 11, 2018Observed: 1.87 ft at 9:24AM Aug 11, 2018Observed: 1.92 ft at 9:30AM Aug 11, 2018Observed: 1.95 ft at 9:36AM Aug 11, 2018Observed: 1.99 ft at 9:42AM Aug 11, 2018Observed: 2.03 ft at 9:48AM Aug 11, 2018Observed: 2.06 ft at 9:54AM Aug 11, 2018Observed: 2.06 ft at 9:55AM Aug 11, 2018Observed: 2.1 ft at 10:00AM Aug 11, 2018Observed: 2.12 ft at 10:06AM Aug 11, 2018Observed: 2.15 ft at 10:12AM Aug 11, 2018Observed: 2.19 ft at 10:18AM Aug 11, 2018Observed: 2.2 ft at 10:24AM Aug 11, 2018Observed: 2.23 ft at 10:30AM Aug 11, 2018Observed: 2.26 ft at 10:36AM Aug 11, 2018Observed: 2.28 ft at 10:42AM Aug 11, 2018Observed: 2.29 ft at 10:48AM Aug 11, 2018Observed: 2.31 ft at 10:54AM Aug 11, 2018Observed: 2.33 ft at 11:00AM Aug 11, 2018Observed: 2.33 ft at 11:06AM Aug 11, 2018Observed: 2.33 ft at 11:12AM Aug 11, 2018Observed: 2.33 ft at 11:18AM Aug 11, 2018Observed: 2.33 ft at 11:24AM Aug 11, 2018Observed: 2.32 ft at 11:30AM Aug 11, 2018Observed: 2.31 ft at 11:36AM Aug 11, 2018Observed: 2.28 ft at 11:42AM Aug 11, 2018Observed: 2.25 ft at 11:48AM Aug 11, 2018Observed: 2.23 ft at 11:54AM Aug 11, 2018Observed: 2.21 ft at 12:00PM Aug 11, 2018Observed: 2.19 ft at 12:06PM Aug 11, 2018Observed: 2.16 ft at 12:12PM Aug 11, 2018Observed: 2.14 ft at 12:18PM Aug 11, 2018Observed: 2.12 ft at 12:24PM Aug 11, 2018Observed: 2.08 ft at 12:30PM Aug 11, 2018Observed: 2.06 ft at 12:36PM Aug 11, 2018Observed: 2.03 ft at 12:42PM Aug 11, 2018Observed: 1.99 ft at 12:48PM Aug 11, 2018Observed: 1.96 ft at 12:54PM Aug 11, 2018Observed: 1.94 ft at 1:00PM Aug 11, 2018Observed: 1.91 ft at 1:06PM Aug 11, 2018Observed: 1.89 ft at 1:12PM Aug 11, 2018Observed: 1.85 ft at 1:18PM Aug 11, 2018Observed: 1.82 ft at 1:24PM Aug 11, 2018Observed: 1.79 ft at 1:30PM Aug 11, 2018Observed: 1.77 ft at 1:36PM Aug 11, 2018Observed: 1.81 ft at 1:42PM Aug 11, 2018Observed: 1.86 ft at 1:48PM Aug 11, 2018Observed: 1.84 ft at 1:54PM Aug 11, 2018Observed: 1.81 ft at 2:00PM Aug 11, 2018Observed: 1.77 ft at 2:06PM Aug 11, 2018Observed: 1.6 ft at 2:12PM Aug 11, 2018Observed: 1.5 ft at 2:18PM Aug 11, 2018Observed: 1.42 ft at 2:24PM Aug 11, 2018Observed: 1.4 ft at 2:30PM Aug 11, 2018Observed: 1.44 ft at 2:36PM Aug 11, 2018Observed: 1.45 ft at 2:42PM Aug 11, 2018Observed: 1.41 ft at 2:48PM Aug 11, 2018Observed: 1.33 ft at 2:54PM Aug 11, 2018Observed: 1.27 ft at 3:00PM Aug 11, 2018Observed: 1.22 ft at 3:06PM Aug 11, 2018Observed: 1.23 ft at 3:12PM Aug 11, 2018Observed: 1.2 ft at 3:18PM Aug 11, 2018Observed: 1.18 ft at 3:24PM Aug 11, 2018Observed: 1.16 ft at 3:30PM Aug 11, 2018Observed: 1.14 ft at 3:36PM Aug 11, 2018Observed: 1.11 ft at 3:42PM Aug 11, 2018Observed: 1.06 ft at 3:48PM Aug 11, 2018Observed: 1.02 ft at 3:54PM Aug 11, 2018Observed: 0.99 ft at 4:00PM Aug 11, 2018Observed: 0.96 ft at 4:06PM Aug 11, 2018Observed: 0.94 ft at 4:12PM Aug 11, 2018Observed: 0.91 ft at 4:18PM Aug 11, 2018Observed: 0.88 ft at 4:24PM Aug 11, 2018Observed: 0.86 ft at 4:30PM Aug 11, 2018Observed: 0.82 ft at 4:36PM Aug 11, 2018Observed: 0.79 ft at 4:42PM Aug 11, 2018Observed: 0.76 ft at 4:48PM Aug 11, 2018Observed: 0.73 ft at 4:54PM Aug 11, 2018Observed: 0.71 ft at 5:00PM Aug 11, 2018Observed: 0.69 ft at 5:06PM Aug 11, 2018Observed: 0.66 ft at 5:12PM Aug 11, 2018Observed: 0.64 ft at 5:18PM Aug 11, 2018Observed: 0.63 ft at 5:24PM Aug 11, 2018Observed: 0.61 ft at 5:30PM Aug 11, 2018Observed: 0.6 ft at 5:36PM Aug 11, 2018Observed: 0.59 ft at 5:42PM Aug 11, 2018Observed: 0.59 ft at 5:48PM Aug 11, 2018Observed: 0.58 ft at 5:54PM Aug 11, 2018Observed: 0.58 ft at 5:55PM Aug 11, 2018Observed: 0.59 ft at 6:00PM Aug 11, 2018Observed: 0.6 ft at 6:06PM Aug 11, 2018Observed: 0.63 ft at 6:12PM Aug 11, 2018Observed: 0.65 ft at 6:18PM Aug 11, 2018Observed: 0.69 ft at 6:24PM Aug 11, 2018Observed: 0.71 ft at 6:30PM Aug 11, 2018Observed: 0.72 ft at 6:36PM Aug 11, 2018Observed: 0.74 ft at 6:42PM Aug 11, 2018Observed: 0.79 ft at 6:48PM Aug 11, 2018Observed: 0.81 ft at 6:54PM Aug 11, 2018Observed: 0.84 ft at 7:00PM Aug 11, 2018Observed: 0.87 ft at 7:06PM Aug 11, 2018Observed: 0.89 ft at 7:12PM Aug 11, 2018Observed: 0.92 ft at 7:18PM Aug 11, 2018Observed: 0.95 ft at 7:24PM Aug 11, 2018Observed: 0.99 ft at 7:30PM Aug 11, 2018Observed: 1.03 ft at 7:36PM Aug 11, 2018Observed: 1.07 ft at 7:42PM Aug 11, 2018Observed: 1.11 ft at 7:48PM Aug 11, 2018Observed: 1.16 ft at 7:54PM Aug 11, 2018Observed: 1.19 ft at 8:00PM Aug 11, 2018Observed: 1.24 ft at 8:06PM Aug 11, 2018Observed: 1.28 ft at 8:12PM Aug 11, 2018Observed: 1.33 ft at 8:18PM Aug 11, 2018Observed: 1.38 ft at 8:24PM Aug 11, 2018Observed: 1.43 ft at 8:30PM Aug 11, 2018Observed: 1.48 ft at 8:36PM Aug 11, 2018Observed: 1.52 ft at 8:42PM Aug 11, 2018Observed: 1.56 ft at 8:48PM Aug 11, 2018Observed: 1.62 ft at 8:54PM Aug 11, 2018Observed: 1.67 ft at 9:00PM Aug 11, 2018Observed: 1.71 ft at 9:06PM Aug 11, 2018Observed: 1.77 ft at 9:12PM Aug 11, 2018Observed: 1.81 ft at 9:18PM Aug 11, 2018Observed: 1.84 ft at 9:24PM Aug 11, 2018Observed: 1.9 ft at 9:30PM Aug 11, 2018Observed: 1.93 ft at 9:36PM Aug 11, 2018Observed: 1.97 ft at 9:42PM Aug 11, 2018Observed: 1.98 ft at 9:48PM Aug 11, 2018Observed: 2 ft at 9:54PM Aug 11, 2018Observed: 2.06 ft at 10:00PM Aug 11, 2018Observed: 2.09 ft at 10:06PM Aug 11, 2018Observed: 2.15 ft at 10:12PM Aug 11, 2018Observed: 2.22 ft at 10:18PM Aug 11, 2018Observed: 2.3 ft at 10:24PM Aug 11, 2018Observed: 2.37 ft at 10:30PM Aug 11, 2018Observed: 2.39 ft at 10:36PM Aug 11, 2018Observed: 2.43 ft at 10:42PM Aug 11, 2018Observed: 2.48 ft at 10:48PM Aug 11, 2018Observed: 2.51 ft at 10:54PM Aug 11, 2018Observed: 2.55 ft at 11:00PM Aug 11, 2018Observed: 2.6 ft at 11:06PM Aug 11, 2018Observed: 2.64 ft at 11:12PM Aug 11, 2018Observed: 2.67 ft at 11:18PM Aug 11, 2018Observed: 2.71 ft at 11:24PM Aug 11, 2018Observed: 2.73 ft at 11:30PM Aug 11, 2018Observed: 2.77 ft at 11:36PM Aug 11, 2018Observed: 2.79 ft at 11:42PM Aug 11, 2018Observed: 2.81 ft at 11:48PM Aug 11, 2018Highest Observation: 2.83 ft at 11:54PM Aug 11, 2018Highest Observation: 2.83 ft at 12:00AM Aug 12, 2018Observed: 2.82 ft at 12:06AM Aug 12, 2018Observed: 2.82 ft at 12:12AM Aug 12, 2018Observed: 2.81 ft at 12:18AM Aug 12, 2018Observed: 2.8 ft at 12:24AM Aug 12, 2018Observed: 2.79 ft at 12:30AM Aug 12, 2018Observed: 2.77 ft at 12:36AM Aug 12, 2018Observed: 2.75 ft at 12:42AM Aug 12, 2018Observed: 2.72 ft at 12:48AM Aug 12, 2018Observed: 2.7 ft at 12:54AM Aug 12, 2018Observed: 2.67 ft at 1:00AM Aug 12, 2018Observed: 2.65 ft at 1:06AM Aug 12, 2018Observed: 2.61 ft at 1:12AM Aug 12, 2018Observed: 2.59 ft at 1:18AM Aug 12, 2018Observed: 2.56 ft at 1:24AM Aug 12, 2018Observed: 2.53 ft at 1:30AM Aug 12, 2018Observed: 2.51 ft at 1:36AM Aug 12, 2018Observed: 2.48 ft at 1:42AM Aug 12, 2018Observed: 2.44 ft at 1:48AM Aug 12, 2018Observed: 2.41 ft at 1:54AM Aug 12, 2018Observed: 2.39 ft at 2:00AM Aug 12, 2018Observed: 2.39 ft at 2:01AM Aug 12, 2018Observed: 2.35 ft at 2:06AM Aug 12, 2018Observed: 2.3 ft at 2:12AM Aug 12, 2018Observed: 2.27 ft at 2:18AM Aug 12, 2018Observed: 2.25 ft at 2:24AM Aug 12, 2018Observed: 2.22 ft at 2:30AM Aug 12, 2018Observed: 2.17 ft at 2:36AM Aug 12, 2018Observed: 2.13 ft at 2:42AM Aug 12, 2018Observed: 2.1 ft at 2:48AM Aug 12, 2018Observed: 2.08 ft at 2:54AM Aug 12, 2018Observed: 2.05 ft at 3:00AM Aug 12, 2018Observed: 2 ft at 3:06AM Aug 12, 2018Observed: 1.98 ft at 3:12AM Aug 12, 2018Observed: 1.92 ft at 3:18AM Aug 12, 2018Observed: 1.9 ft at 3:24AM Aug 12, 2018Observed: 1.86 ft at 3:30AM Aug 12, 2018Observed: 1.83 ft at 3:36AM Aug 12, 2018Observed: 1.8 ft at 3:42AM Aug 12, 2018Observed: 1.76 ft at 3:48AM Aug 12, 2018Observed: 1.71 ft at 3:54AM Aug 12, 2018Observed: 1.68 ft at 4:00AM Aug 12, 2018Observed: 1.65 ft at 4:06AM Aug 12, 2018Observed: 1.62 ft at 4:12AM Aug 12, 2018Observed: 1.61 ft at 4:18AM Aug 12, 2018Observed: 1.55 ft at 4:24AM Aug 12, 2018Observed: 1.52 ft at 4:30AM Aug 12, 2018Observed: 1.48 ft at 4:36AM Aug 12, 2018Observed: 1.45 ft at 4:42AM Aug 12, 2018Observed: 1.42 ft at 4:48AM Aug 12, 2018Observed: 1.37 ft at 4:54AM Aug 12, 2018Observed: 1.33 ft at 5:00AM Aug 12, 2018Observed: 1.3 ft at 5:06AM Aug 12, 2018Observed: 1.27 ft at 5:12AM Aug 12, 2018Observed: 1.24 ft at 5:18AM Aug 12, 2018Observed: 1.21 ft at 5:24AM Aug 12, 2018Observed: 1.19 ft at 5:30AM Aug 12, 2018Observed: 1.16 ft at 5:36AM Aug 12, 2018Observed: 1.13 ft at 5:42AM Aug 12, 2018Observed: 1.1 ft at 5:48AM Aug 12, 2018Observed: 1.07 ft at 5:54AM Aug 12, 2018Observed: 1.04 ft at 6:00AM Aug 12, 2018Observed: 1 ft at 6:06AM Aug 12, 2018Observed: 0.99 ft at 6:12AM Aug 12, 2018Observed: 0.97 ft at 6:18AM Aug 12, 2018Observed: 0.95 ft at 6:24AM Aug 12, 2018Observed: 0.95 ft at 6:30AM Aug 12, 2018Observed: 0.93 ft at 6:36AM Aug 12, 2018Observed: 0.9 ft at 6:42AM Aug 12, 2018Observed: 0.88 ft at 6:48AM Aug 12, 2018Observed: 0.88 ft at 6:54AM Aug 12, 2018Observed: 0.88 ft at 7:00AM Aug 12, 2018Observed: 0.88 ft at 7:06AM Aug 12, 2018Observed: 0.88 ft at 7:12AM Aug 12, 2018Observed: 0.88 ft at 7:18AM Aug 12, 2018Observed: 0.89 ft at 7:24AM Aug 12, 2018Observed: 0.91 ft at 7:30AM Aug 12, 2018Observed: 0.94 ft at 7:36AM Aug 12, 2018Observed: 0.96 ft at 7:42AM Aug 12, 2018Observed: 0.99 ft at 7:48AM Aug 12, 2018Observed: 1 ft at 7:54AM Aug 12, 2018Observed: 1.03 ft at 8:00AM Aug 12, 2018Observed: 1.07 ft at 8:06AM Aug 12, 2018Observed: 1.09 ft at 8:12AM Aug 12, 2018Observed: 1.12 ft at 8:18AM Aug 12, 2018Observed: 1.15 ft at 8:24AM Aug 12, 2018Observed: 1.19 ft at 8:30AM Aug 12, 2018Observed: 1.21 ft at 8:36AM Aug 12, 2018Observed: 1.24 ft at 8:42AM Aug 12, 2018Observed: 1.29 ft at 8:48AM Aug 12, 2018Observed: 1.31 ft at 8:54AM Aug 12, 2018Observed: 1.36 ft at 9:00AM Aug 12, 2018Observed: 1.39 ft at 9:06AM Aug 12, 2018Observed: 1.43 ft at 9:12AM Aug 12, 2018Observed: 1.47 ft at 9:18AM Aug 12, 2018Observed: 1.5 ft at 9:24AM Aug 12, 2018Observed: 1.54 ft at 9:30AM Aug 12, 2018Observed: 1.61 ft at 9:36AM Aug 12, 2018Observed: 1.64 ft at 9:42AM Aug 12, 2018Observed: 1.68 ft at 9:48AM Aug 12, 2018Observed: 1.72 ft at 9:54AM Aug 12, 2018Observed: 1.76 ft at 10:00AM Aug 12, 2018Observed: 1.76 ft at 10:01AM Aug 12, 2018Observed: 1.8 ft at 10:06AM Aug 12, 2018Observed: 1.83 ft at 10:12AM Aug 12, 2018Observed: 1.88 ft at 10:18AM Aug 12, 2018Observed: 1.92 ft at 10:24AM Aug 12, 2018Observed: 1.95 ft at 10:30AM Aug 12, 2018Observed: 1.99 ft at 10:36AM Aug 12, 2018Observed: 2.03 ft at 10:42AM Aug 12, 2018Observed: 2.06 ft at 10:48AM Aug 12, 2018Observed: 2.1 ft at 10:54AM Aug 12, 2018Observed: 2.13 ft at 11:00AM Aug 12, 2018Observed: 2.16 ft at 11:06AM Aug 12, 2018Observed: 2.19 ft at 11:12AM Aug 12, 2018Observed: 2.22 ft at 11:18AM Aug 12, 2018Observed: 2.24 ft at 11:24AM Aug 12, 2018Observed: 2.28 ft at 11:30AM Aug 12, 2018Observed: 2.3 ft at 11:36AM Aug 12, 2018Observed: 2.32 ft at 11:42AM Aug 12, 2018Observed: 2.34 ft at 11:48AM Aug 12, 2018Observed: 2.36 ft at 11:54AM Aug 12, 2018Observed: 2.38 ft at 12:00PM Aug 12, 2018Observed: 2.38 ft at 12:06PM Aug 12, 2018Observed: 2.38 ft at 12:12PM Aug 12, 2018Observed: 2.38 ft at 12:18PM Aug 12, 2018Observed: 2.36 ft at 12:24PM Aug 12, 2018Observed: 2.35 ft at 12:30PM Aug 12, 2018Observed: 2.33 ft at 12:36PM Aug 12, 2018Observed: 2.29 ft at 12:42PM Aug 12, 2018Observed: 2.27 ft at 12:48PM Aug 12, 2018Observed: 2.24 ft at 12:54PM Aug 12, 2018Observed: 2.22 ft at 1:00PM Aug 12, 2018Observed: 2.2 ft at 1:06PM Aug 12, 2018Observed: 2.18 ft at 1:12PM Aug 12, 2018Observed: 2.15 ft at 1:18PM Aug 12, 2018Observed: 2.11 ft at 1:24PM Aug 12, 2018Observed: 2.08 ft at 1:30PM Aug 12, 2018Observed: 2.06 ft at 1:36PM Aug 12, 2018Observed: 2.03 ft at 1:42PM Aug 12, 2018Observed: 2 ft at 1:48PM Aug 12, 2018Observed: 1.98 ft at 1:54PM Aug 12, 2018Observed: 1.95 ft at 2:00PM Aug 12, 2018Observed: 1.91 ft at 2:06PM Aug 12, 2018Observed: 1.88 ft at 2:12PM Aug 12, 2018Observed: 1.84 ft at 2:18PM Aug 12, 2018Observed: 1.81 ft at 2:24PM Aug 12, 2018Observed: 1.79 ft at 2:30PM Aug 12, 2018Observed: 1.73 ft at 2:36PM Aug 12, 2018Observed: 1.72 ft at 2:42PM Aug 12, 2018Observed: 1.69 ft at 2:48PM Aug 12, 2018Observed: 1.65 ft at 2:54PM Aug 12, 2018Observed: 1.63 ft at 3:00PM Aug 12, 2018Observed: 1.6 ft at 3:06PM Aug 12, 2018Observed: 1.56 ft at 3:12PM Aug 12, 2018Observed: 1.53 ft at 3:18PM Aug 12, 2018USGS--Water Resources of the United StatesDEWD1(plotting HMIRG) Graph Created (4:33AM Aug 14, 2018)ObservedLatest observed value: 1.53 ft at 3:18 PM EDT 12-Aug-2018. Flood Stage is 3 ft
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About this graph
Tabular Data (UTC)
Tabular Data (EDT)
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.  During tropical cyclones, please refer here for additional storm surge information.

NOTE: Flood impacts are based on long-term averages. Actual impacts from any tidal 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.

NOTE: Graphical forecasts are not available for the Rehoboth Bay at Dewey Beach. During times of high water, forecast crest information can be found in the text products.

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: 5
Moderate Flood Stage: 4
Flood Stage: 3
Action Stage: 0
Low Stage (in feet): -2

Historic Crests
(1) 7.34 ft on 03/06/1962
(2) 5.68 ft on 10/29/2012
(3) 4.74 ft on 11/13/2009
(4) 4.69 ft on 01/23/2016
(5) 4.52 ft on 05/12/2008
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 4.03 ft on 09/19/2017
(2) 4.29 ft on 09/29/2016
(3) 4.14 ft on 02/09/2016
(4) 4.69 ft on 01/23/2016
(5) 4.38 ft on 10/03/2015
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
7.34 The level reached on March 6, 1962.
5.68 The level reached on October 29, 2012 during Post Tropical Cyclone Sandy.
5 MAJOR FLOODING. At this level, flooding starts to become severe enough to begin causing structural damage along with widespread flooding of roadways near Rehoboth Bay and the tidal waterways that flow into it. Vulnerable homes and businesses may be severely damaged as water levels rise further above this threshold. Numerous roads become impassable and some neighborhoods may be isolated. The flood waters become a danger to anyone who attempts to cross on foot or in a vehicle.
4 MODERATE FLOODING. At this level, widespread flooding of roadways begins with many roads becoming impassable near Rehoboth Bay and the tidal waterways that flow into it. Lives may be at risk when people put themselves in harm's way. Some damage to vulnerable structures may begin to occur. COASTAL FLOOD WARNING LEVEL.
3.3 COASTAL FLOOD ADVISORY LEVEL.
3.2 Flooding begins at Old Landing on Rehoboth Bay. Flooding begins along sections of DE Route 1 between Dewey Beach and Indian River Inlet, including the Delaware Seashore State Park. Flooding begins in Dewey Beach.
3 MINOR FLOODING.
About This Location Collapse

Latitude: 38.694167° N, Longitude: 75.084167° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 3 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 -1.12 1.88 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 -0.53 1.35 NAVD88 to MHHW conversion from NOAA Vertical Datum Transformation (VDatum)

Current/Historical Observations:

Additional Information Collapse
All gage data is referenced in MLLW. During winter months, cold and ice may result in inaccurate real-time stages. Adjustments or deletions of this data can only be done after detailed analysis.
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
Philadelphia/Mount Holly Weather Forecast Office
732 Woodlane Road
Mount Holly, NJ 08060-9615
(609) 261-6600
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Page last modified: 21-Dec-2016 10:38 PM
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