Is there a library for reading GRIB2 data files in .NET (preferably in F#)?
If not, where is a specification that formally defines the GRIB2 data format?
Here's link to the GRIB2 specification.
Apparently there is GribCS, an open source library available on SourceForge that you could use to process GRIB files. The fact that is's written in C# doesn't matter as all .NET languages (including F#) can use it..