Snow Warning

 is a Pokémon ability introduced in the fourth generation. It summons hail when the ability holder enters the field

Pokémon with Ability

 * Snover
 * Abomasnow
 * Mega Abomasnow
 * Vanilluxe (Gen VII)

As a Hidden Ability

 * Alolan Vulpix
 * Alolan Ninetales
 * Amaura
 * Aurorus