SKY WATCHING -- If you can get above the clouds, tonight may be a good night to stroll a mountain ridge without a headlamp in the shadowy light the full moon will be bathing on the landscape.

But remember, it's Friday the 13th.  A chilling thought.

"I know people who say that (it’s superstitious), but it’s just a thing that happens because of the moon and the calendar align, for me there’s nothing supernatural about it," Jerry Eber, a Spokane Astronomical Society member, told S-R reporter Jody Lawrence-Turner. "The moon is up there all the time, it just happens to have more sun on it."

The convergence of the astronomical and the astrological calendar is rare. The last time Friday the 13th coincided with a full moon was Oct. 13, 2000. The next time will be Aug. 13, 2049.

Tonight is only the 10th time since 1900.

Although there’s no concrete evidence, police have noticed odd things happen when there’s a full moon. A former Spokane County Sheriff’s sergeant once recounted to The Spokesman-Review some of those odd happenings: as a naked man on the side of the road offering free sex and a dead coyote stuffed into a mailbox were two.