Interactive map of real-time and forecast information for coasts and oceans

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Screenshot of NOAA's nowCOAST web app.

The National Oceanic and Atmospheric Administration's nowCOAST web app provides real-time observations, forecasts, and warnings for a wide range of coastal and inland weather, water, air, and hazard issues. Available layers and services include:

  • Weather forecasts
    • Hour-by-hour forecasts for the next week for any U.S. coastal or inland location, including temperature, humidity, wind speed and direction, cloud cover, rain and snow totals, and probability of precipitation
    • Links to more detailed forecasts for all areas
    • Detailed marine weather for beaches, coastal waters, offshore waters, and high seas areas
  • Current weather radar, plus weather radar information for the preceding four hours
  • Precipitation accumulation for the preceding 1, 3, 6, 12, 24, 48, and 72 hours
  • Tropical cyclone tracks (both forecast and observed) and potential storm surge flooding
  • Water currents, speed, level, and temperature for the Great Lakes, estuaries, coastal waters, and global oceans
  • Sea surface temperatures
  • Tide predictions
  • River level forecasts
  • Air quality forecasts for cities
  • Thunderstorm and fire weather outlooks
  • Links to individual observation sites across the U.S. and North and Central America:
    • Weather stations
    • Coastal/lake/ocean platforms
    • River gages
    • Water quality stations
    • Air quality stations
    • Upper-air stations
    • Weather radars
    • Wind profilers

Additional layers include algal bloom forecasts, global aviation weather forecasts, and links to more detailed analyses of a wide range of conditions, as well as an entire version of the website especially for mariners.

Click here to access the nowCOAST web app.

Source: National Oceanic and Atmospheric Administration