NOAA/NOS nowCOAST is a GIS-based web mapping portal displaying near real-time observations, analyses, tide predictions, model guidance, watches/warnings, and forecasts for the coastal United States.|
nowCOAST provides situational awareness on present and future environmental conditions for coastal and marine users by integrating data and information from across NOAA, other federal agencies and regional ocean and weather observing systems. For example, users can assess present conditions by creating maps of the latest in-situ weather/marine weather observations, weather radar reflectivity mosaics, cloud images from satellites, surface wind and sea-surface temperature analyses, and precipitation amounts for the last few hours. In terms of future conditions, users can obtain maps of critical weather and marine weather advisories, watches, and warnings, weather forecasts, tropical cyclone track and intensity forecasts, and forecast guidance of water levels, temperature, salinity, and currents from oceanographic forecast models.
In addition, nowCOAST provides users with thousands of geo-referenced hyperlinks to observations, forecasts, forecast guidance, and forecast discussions located on web pages operated by NOAA and other federal agencies to obtain more detailed data and information. For example, users can obtain weather observations from buoys operated by NWS or regional ocean observing systems, NOS tide predictions at specific stations, river discharge observations at USGS gauges, river stage forecasts at NWS forecast locations, and NOS Harmful Algae Bloom forecasts for coastal waters.