[thret]

Have you considered exactly which frame of reference would be required for it to appear to happen in our future?

[Cushman]

Whoops, I forgot my own rules. Relativity doesn't violate causality; Obviously no one will observe us to see the reservoir it before it happens.

Okay, so there's a frame of reference in which what we'll observe to happen to the reservoir tomorrow has already happened. It was much punchier the other way, though :(