Water Level Predictions


An effective way to prepare for storm tides in the Chesapeake Bay

The Tidewatch network provides an effective way to measure, visualize, and predict the magnitude and impacts of coastal flooding at locations within the Chesapeake Bay and along Virginia’s seaside Eastern Shore. Use Tidewatch interactive prediction charts to better prepare for storm tides and minimize their potential impacts. The charts are particularly useful for comparing storm tides in areas with different tidal ranges.

The Tidewatch chart for each station displays the difference between the predicted astronomical tide and observed water level at a given location. This difference—the residual—represents non-tidal, weather-induced change in water level including storm surge. The system, initially developed by Virginia Institute of Marine Science emeritus professor John Boon and made public in August of 2012, is currently being maintained and updated by Dr. David Forrest, with an anticipated expansion in mid-2017 to include new water level sensors installed by the USGS, and a new network of ultrasonic water level sensors installed by the Cities of Hampton Roads as part of the StormSense Project led by Dr. Derek Loftis at VIMS.

Tidewatch Stations

Access observations and forecasts for individual stations using the links or map below, or view a single graph that compares water-level forecasts among all the stations.

View VIMS Tidewatch Network in a larger map