"Current Tables" refer to tidal current predictions tables, which provide a listing of the times and speeds of the daily flood, ebb, and slack currents, or hourly interval currents speeds, for a particular location. "Tide Tables" can be generated for more than 3,000 locations around the USA, and are available from the NOAA Tide Predictions service of our website. "Tide Tables" refer to tidal predictions tables, which provide a listing of the times and heights of the daily high and low tide predictions, or hourly interval tidal height values, for a particular location. The only “Tide Charts” and “Current Charts” presently generated are the Water Level or Currents – Nowcast & Forecasts Guidance available from our Operational Forecast Systems (OFS). However those publications were removed in 1990 due to inaccurate information presented in these publications. NOAA used to provide printed Tidal Current Charts for 9 areas of the U.S. These maps normally show the currents (speed and directions) on an hourly basis. “Current Charts” refer to a series of maps that show the currents speed and direction throughout a bay or estuary at a particular point in time. NOAA has never produced a printed tide chart publication. "Tide Charts" refer to a series of maps that show the water levels throughout a bay or estuary at a particular point in time. "Tide Charts" and "Tide Tables" are two different products, as are “Current Charts” and “Current Tables”. VDatum uses modeling techniques to calculate a relationship between tidal and geodetic datums at a desired location, based on the near-by locations with a measured relationship between tidal and geodetic datums. VDATUM is a free software tool and online service developed jointly by NOAA's National Geodetic Survey (NGS), Office of Coast Survey (OCS), and Center for Operational Oceanographic Products and Services (CO-OPS). In which case, there is one additional option available - the Vertical Datum Transformation (VDATUM) tool. Many stations, particularly older or temporary stations, lack the survey benchmarks necessary to establish the relationship between tidal and geodetic datums. Unfortunately, not all stations are able to meet these standards. When survey leveled from these markers to the tide station, the relationship calculations for these marks must match within 9 millimeters. If the individual benchmark has a NGS record, this is recorded by the IDP or OPUS PID numbers of that mark. The survey benchmarks associated with each station are provided in the Benchmark Sheets for a station. Our standard requires a minimum of 2 survey benchmarks, installed within a short distance of the station, which have a NAVD88 elevation recorded by the National Geodetic Survey (NGS). If that field is blank, then no relationship has been established. This relationship is noted on the Tidal Datums for that station, by providing an elevation of NAVD88. Where possible we provide a relationship between tidal datums and the geodetic datum of NAVD1988. By clicking on the station you will be able to get a brief information about the station and immediately add to favorites.NOAA, and it predecessor organizations, have been measuring tide data long before the development of a standard geodetic datum, such as NAVD1988. To make it easier for you to find a station you can use a convenient map. And if you like a particular station, you can add it to your favorites. By default, the nearest station is selected, but you can choose any other. You have thousands of stations at your disposal. All information is presented in the form of a wave scale, which shows information about tides during the day. With our app, you can fully control the moon’s data state. The app works without internet, so even if you do not have a connection you will be able to learn about weather conditions In addition, you can watch the weather to successfully plan your vacation and do not worry that the weather will spoil it. Tide Chart and Weather Radar is an app with which you can control the moonlight and tide.
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