What the hail? Chunk of ice slams into Oakland

Geez, I knew the weather out here on the West Coast had been strange. But enormous chunks of ice falling from the sky and leaving a 3-foot hole in the sodden sod? Sounds life-threatening. I mean, everybody knows Oakland can be dangerous, but come on.

Apparently it wasn't just a big block of airplane toilet water, which has been known to fall from the sky on occasion. But now the San Francisco Chronicle reports that the investigation into the mysterious giant ice cube is, um, melting away.