To the people whose replies we’ve deleted:
Do not ridicule people who show up with a real question, nor throw out flip inside jokes. This forum was founded as a place for people to help each other. You can jab at each other goodnaturedly in discussions between yourselves if you want but not when somebody shows up wanting an actual answer.
My guess: Most likely, it’s the ongoing spotlight from the Haunted House over on East Marginal Way (sponsored by a radio station). Nightly.