3 am and the storm hasn't hit yet. I'm hoping the forecasts are overly cautious but I'm not betting on it.
Have a couple of battery operated air pumps, a box of D cell batteries, a UPS, and access to a portable generator. Fortunately, my neighbourhood is serviced by underground electrical supplies, so hopefully downed trees aren't as big a hazard as in other areas with power poles.
If the power is out for a few hours, I wouldn't worry about the canister filters. If it becomes half a day, full day or longer, then I'd rinse it out with tank water after power is restored, especially if its stinky.
With the dropping temperatures, I would cover up your tanks with blankets or insulation or moving quilt-blankets to help retain as much heat as possible. Since the worst winds are expected Saturday, we all have a bit of time to finish our preparations. I'm also planning on staying home as much as possible to avoid the traffic issues that happens every time we get a lot of rain or wind. Metro Vancouver drivers are notorious for forgetting how to drive in the rain and lots of accidents happen whenever it rains heavily after a week or more of little/no rain. Go figure.
Stay safe & hope nobody loses power.
Anthony