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Hourly MyOcean current gribs:
http://grib.weather4d.com/MyOcean/
Usefull in the UK:
http://grib.weather4d.com/MyOcean/IBI.grb.gz
Must decompress before using them in Expedition.
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They also have some other data, for example
http://grib.weather4d.com/AromeHD/