NCEP FNL Operational Model Global Tropospheric Analyses, July 1976 - continuing

This product was from the Global Forecast System (GFS) that was run operationally in near-real time at NCEP. The analyses are available on the surface, 12 mandatory levels from 1000mb to 50mb, boundary and some sigma layers, tropopause, and a few others.

Parameters include surface pressure, sea level pressure, geopotential height, temperature, sea surface temperature, potential temperature, relative humidity, snow depth (weekly, Northern Hemisphere only) precipitable water, u- and v- winds and vertical motion. This dataset is maintained by NCAR's Data Support Section (DSS). Please see the external link to access the data.