The Blizzards are snowstorms that happen occasionally in winter in Club Penguin. The first one happened in December 2006 at the Christmas Party. The snow was later kept in the Lodge Attic using the AC 3000. In February 2007, the Festival of Snow 2007 was held using the snow, and penguins could submit pictures that were turned into snow sculptures. In December 2008, another possible blizzard happened. The Christmas Party 2008 then used the snow again to look somewhat identical to the 2006 one. The snow again was stored in the Lodge Attic. The snow was supposed to be used in February, but was moved to March. The snow was then used to make snow sculptures again in the Snow Sculpture Showcase, but there was no party.
It is likely the blizzard from the Christmas Party 2008 was an artificial one, because construction for the party had boxes with snow in them.