Believe it or not, there is not much that you need to do to your pool if a storm is coming.
Many people think that it is necessary to lower the water level to accommodate the rain water, but chances are, if your pool was going to overflow, it would have done so by now.
Most pools have an overflow or static line running from the pool wall or inside their skimmer and out into the yard. As long as the end of the line is cut below deck level and is free to vent, the pool water will run out of that before it gets up to your deck. Just make sure it is not clogged with dirt or buried. This happens often if people are careless when replanting or doing yard maintenance around the overflow. It’s something you should always check when the wet season starts. Make sure that it has an open place to pour out and run off from.
Don’t load the pool up with chemicals. You are just wasting them. If your pool turns green from excessive rain, it will only be fresh water and this clears up quickly with a basic shock, as long as you do it within the 2-3 days after the storm.
Finally, if you are concerned about your equipment, be worried most about the pump motor. Turn the power off to it for the duration of the storm and there should not be any damage.