Rank 5 Wendigo Gift / Rank 5 Bunyip Gift / Rank 4 Shadow Lord Gift
The Shadow Lord versions is called Call the Storm
The Garou can summon nearly any weather effect she desires, be it a tornado, fog, blizzard or thunderstorms. An avatar of Wendigo teaches this Gift. An avatar of Rainbow Serpent teaches the Bunyip version.
System: The player spends one Gnosis pint and rolls Willpower (difficulty varies based on how close the desired effect is to the actual weather patterns of the area). The storm covers 10 miles per success. If the Garou summons a thunderstorm, she may spend Gnosis to call lightning down on her enemies (Dexterity + Occult to hit, 10 dice of aggravated damage).
Shadow Lord version: Only thunderstorms may be called and an avatar of Grandfather Thunder teaches this Gift.
Source: Core book revised / Shadow Lord Tribebook (revised)