ActionVFX release weather stock
The stock footage website dedicated to VFX artists has released its first collection of over 100 weather effects including falling snow, windy snow, and cold breath. The collections were shot in 6K at 60fps on the RED Weapon Helium 8K Camera. Find out more on the ActionVFX website.
Also of note, the company has been releasing a regular series of compositing tutorials. You can see them all here.