Nothing that the car hasn't experienced before. Snow is normal, and no rain recently.
The car is receiving > 14V from the alternator and there has been no indication of any electrical interruption from inside the car.

I thought about the MPI relay, but I don't think it would return to normal when putting the car under additional load. I kind of ruled that one out.
I haven't completely ruled out the ECU yet, but at the same time, I don't have any reason to suspect it.