Tee,.....it's kinda hard to tell for sure,.....but it looks like it might be a Snowy Geometer. The wings ragged edges indicate it might have had a rough ride through it's life.... but,...there are moths with normally ragged edges Another possible suspect is a White Spring Moth.
Subtle aspects....like the antennae.....can help with ID. Try to get a closer shot,...if you get another opportunity.
