Unexplained Falls

Sometimes in the San Francisco Bay Area it rains chunks of flesh and rocks. (You were not...aware of this?)

"According to the San Francisco Herald of July 24, 1851, blood and flesh, with pieces ranging in size from a pigeon's egg to a small orange, descended in a two-to three minute shower on an Army station at Benicia, California, covering a spot of ground 30 yards wide and 300 yards long.

Source: Clark, Jerome, Encyclopedia of Strange and Unexplained Physical Phenomena, Detroit: Gale Research Inc, 1993, pg. 272. 

Oakland, 1943: stones fall from the sky from no apparent source.

Source: Clark, Jerome, Unexplained! Detroit: Visible Ink Press, 1993. p. 125.

More on the latter if I can get a hold of it.

The Benicia location is apparently the former location of the Benicia Arsenal, and the present location of the modern-day museum. Fun tidbit: this was one of the few locations of the United States Army Camel Corps. 

Publicly, Mysterious SF says: It's hard to imagine a scenario that even makes blood and flesh falling from the sky even remotely plausible.

Privately, Mysterious SF says: More artifacts from Magonia.