A good Protoss player usually has pretty good micro with their High Templars keeping them in the back and out of sight, which makes it kind of hard to EMP or snipe them. I'm having trouble countering them.
I was thinking maybe starting to research cloak for ghosts and have them sneak around when the battle starts. Backup my forces trying to dodge storms and then try to EMP the high temps. What are some other strategies that work well against storms?