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A chart datum is the water level surface serving as origin of depths displayed on a nautical chart and for reporting and predicting tide heights. A chart datum is generally derived from some tidal phase, in which case it is also known as a tidal datum. [1] Common chart datums are lowest astronomical tide (LAT) [1] and mean lower low water (MLLW).
Westport Light State Park is a public recreation area of 560 acres (230 ha) on the Pacific Ocean in Grays Harbor County, Washington. It sits adjacent to the historic Grays Harbor Light , the tallest lighthouse in Washington .
Westport is a city in Grays Harbor County, Washington, United States. It had a population of 2,213 at the 2020 census. [4] Westport is located on a peninsula on the south side of the entrance to Grays Harbor from the Pacific Ocean. The public Westport Marina is the largest marina on the outer coast of the United States's Pacific Northwest. The ...
Get the Westport, WA local weather forecast by the hour and the next 10 days. Skip to main content. Sign in. Mail. 24/7 Help. For premium support please call: 800-290-4726 more ways ...
Twin Harbors State Park is a public recreation area covering 225 acres (91 ha) on the Pacific Ocean two miles south of the town of Westport in Grays Harbor County, Washington. [2] The site was once a U.S. Army training ground, which the state began acquiring for park use in 1937. [ 3 ]
Tide tables, sometimes called tide charts, are used for tidal prediction and show the daily times and levels of high and low tides, usually for a particular location. [1] Tide heights at intermediate times (between high and low water) can be approximated by using the rule of twelfths or more accurately calculated by using a published tidal ...
Grays Harbor Light ; Location: Westport, Washington, United States: Coordinates: 1]: Tower; Foundation: Sandstone: Construction: Brick and concrete: Automated: 1960s: Height: 107 feet (33 m): Shape: Octagonal: Heritage: National Register of Historic Places listed place : Light; First lit: 1898: Focal height: 37 m (121 ft) : Lens: Third order Fresnel lens: Range: 19 miles (17 nmi; 31 km ...
Tide flow information is most commonly seen on nautical charts, presented as a table of flow speeds and bearings at hourly intervals, with separate tables for spring and neap tides. The timing is relative to high water at some harbour where the tidal behaviour is similar in pattern, though it may be far away.