Every dog is different and has their own way of expressing fear. It’s important to know what to look for so you know how to help your dog. One of the clearest signs a dog is stressed during a storm is if they seek out a hiding place, often in the grounded areas of a home like the basement or a bathtub (which, believe it or not, can protect them against the electric shocks). In extreme cases, dogs become so scared that their behavior turns dangerous and destructive, such as clawing through walls or jumping through window screens.
Common signs of stress you should be looking for before and during a storm include trembling, panting, hiding, cowering, pacing, urination, and even destructive behaviors.