For more information: GRIB Explorer Software Weather On Demand An easy-to-use GRIB viewer for a more accurate picture of ocean weather conditions Available as a download or on CD. Select your preferred Delivery Option from the Available Options menu below. Please note: For Delivery Option "Ship Software CD" we ship FREE via USPS First Class Mail. Need access to GRIB files? WeatherNetTM carries the world's largest collection of GRIB weather and ocean data. Add them together for our GMN Favorite Marine Weather Package