Snowfall spell

The Snowfall spell, also known as the 'Maxima snowflake-making spell, was a stronger version of the Snowflake-making spell that created snowstorms.

It was invented by Jacob's sibbling in the 1980s, who originally intended to give the original spell a wider ranger so they could make it snow at the Burrow, but ended up crating a snowstorm at Hogwarts Castle.