Snow?

A white ocean consuming the grass,
Filled with angels that were born,
Balls fly over the ocean,
Jack Frost in the air,
Flakes adding on,
Kids are jubilant,
From adults; come large snores,
The ocean is snow.
The ocean has a darker side,
Corpses floating around,
The flakes become more violent,
Snow is unpredictable.
“Watch out,” it says.
“I can be fun, but never trust a blizzard in rage.”