Hi Omar!
Your GRIB-Import works really fine for UGRIB and ZYGRIB.
Unfortunatelly yo need internet access to receive this data...
I know one possibility to get GRIB data via mail:
Send a E-Mail to the address gmngrib@globalmarinenet.net with (for example) following subject "Mediterranean 7day".
After sendind this mail you receive an bz2 compressed file with the requested GRIB.
Unfortunatelly this import seems not working (but GRIB metadata looks good)...
Could you please check also this import...
Thank you and kind regards
Michi