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We have not seen Hybrid-B A252 GRIB data since 01/08/05 17:51:45 Z. This data has been very sporadic/intermittent over the past couple days. We receive 20-km (A252) resolution grid files via 'atm.geo.nsf.gov' for three file types: Hybrib-B, Isobaric, and Surface. Hybrid-B seems to be the only file type affected. Can you provide any information regarding this issue? Thanks -- ================================== Brett Chain NOAA/FSL/ITS/Systems Support Group