You could also tape plastic bags over windows(or shove them between the glass and screen if you have those types of windows) and put towels under doors to prevent heat loss/drafts. If they sell big battery cells with plug ins for computers, you might be able to use one to power a teflon free space-heater (but you would need to be certain the coils were pfoa/ptfe/teflon free within the heater.
or get a generator for $300 and run it outside.
https://www.lowes.com/pd/Westinghou...KG2hzboGI5l05PXcYJtCu95coPcegm1UaAvBTEALw_wcB
hehehe, there are likely no generators for miles less than 24 hours before a big storm
There may not be any Mr Buddy heaters available either, I'm afraid it's likely too late to be trying to prepare for this.
If they are predicting power outages then it's likely that the town or city is going to open shelters. Give the police or fire department a call tomorrow to find out. It's also likely that both of those departments will be willing to transport you to the shelter or the fire station.
So in my mind, the most impactful thing you can do now is prepare to transport your pets. Make ready the travel cages, cat carriers, towels/blankets, food, whatever.