The moon is 100% full so conditions are within parameters for werewolf activity although being this close to Christmas has been known to suppress some werewolf transformations due to the vast forces of good marshaled upon the Earth.
In addition on Midnight December 21st the full moon fell precisely on the winter solstice combined with a complete lunar eclipse. The full moon falling on the winter solstice has been known to increase werewolf rage even with the closeness to Christmas. However the lunar eclipse will cause all werewolves to de-transform for the entirety of the night from Midnight to dawn on December 21st. It’s recommended you stay indoors from dust to 11:59 PM on December 20th.