National Digital Forecast Database

The National Digital Forecast Database (NDFD) provides access to gridded forecast of sensible weather elements. These sensible weather elements include: temperature, dew point, winds, chance of precipitation, precipitation amount, weather, and sky cover.

These are plotted every 3 hours out to 72 hours; every 6 hours out to 168 hours. Additional variables include: max/min temperatures (every 24 hours, out to 168 hours), probability of precipitation (every 12 hours, out to 168 hours), precipitation amount (every 6 hours out to 72 hours), snow amount (every 6 hours out to 48 hours), and wave height (every 12 hours out to 120 hours). All of these parameters are available for time scales as small as an hour and space scales of a few kilometers.