I have no water inside my house. I have a thermometer under the house which tells me it is over 40F under there. I have cold water in my washing machine, and that is my only flowing water that I can find. Knowing what I do of how my pipes are laid out I am a bit confused as to how this could have happened.
And it cleared up quickly, so it was just barely frozen, however that happened.
These arm's length self-portraits are hard!