It is physically possible for this to happen... I had heard of this phenomenon previous to seeing this thread. It's been known to rain frogs in stormy weather. The hypothesis is these small second density creatures get sucked up into it the cloud from a waterspout/tornado and 'rain' down someplace else.
That being said, it is also possible to hoax something like this, so I can't say this particular instance is real or not.
http://en.wikipedia.org/wiki/Raining_animals
That being said, it is also possible to hoax something like this, so I can't say this particular instance is real or not.
http://en.wikipedia.org/wiki/Raining_animals