The periodic rise and fall of sea levels in the Newport News area are primarily caused by the gravitational forces exerted by the moon and the sun. This phenomenon results in alternating periods of increased and decreased water depth, influencing activities along the shoreline and within the adjacent waterways. For instance, a boater planning a journey on the James River near this Virginia city must consider the water level’s variations to navigate safely under bridges and through channels.
Understanding the predictable fluctuations of the water is crucial for various sectors in the Hampton Roads region. Maritime commerce relies heavily on this information for efficient cargo transport and port operations. Recreational activities such as fishing, boating, and beachgoing are also impacted, necessitating awareness of the schedule for optimal enjoyment and safety. Historically, coastal communities in this area have adapted their infrastructure and practices to accommodate these cyclical changes, demonstrating its fundamental influence on local life.