(CNN) A bright, strange-looking light streaked across Northern California on Wednesday night, its appearance coinciding with a scrapped rocket launch and leaving the Twitterverse asking, "So, what's that in the sky?"

The answer: Probably a meteor.

The phenomenon was spotted over the Lake Tahoe area, the Sacramento Valley and the Bay Area around 5:45 p.m. local time.

It has not been 100% identified, however "evidence is growing the object seen was a meteor," according to the National Weather Service Bay Area, reiterating that stance on Thursday after the American Meteor Society called the flash a fireball.

"A meteor can create a very high level cloud called a noctilucent cloud ," the weather service said.