A strong way to help your dog stay calm during a storm is to be there for them and show them you care. A common myth is that you would reward anxious behavior by comforting them.
An anxious dog has a hard time learning due to being overstimulated and extremely emotional, comforting your dog is a way to destress them, it will not reward any poor behavior caused by fear.
Most dogs that do suffer from a fear of storms often suffer from other forms of anxiety, such as separation anxiety, social anxiety, and canine noise aversion. (fear of loud noises like fireworks, celebrations, vacuum cleaners, and smoke detectors) so pay close attention to other things that may make them on edge or show symptoms of distress.
Other ways to calm your dog are to create a safe space for them. It could either be in a closet, a room with no windows, or in their crate. If they have a crate be sure to leave it available during a storm - but always leave the door open. This is very important. If you lock your dog in their crate and they start getting anxious, this could lead to them trying to bite or claw their way out which could break their teeth or claws in return.
Try putting a heavy blanket or sound-deadening cover over the crate to help muffle any noise.
There are some products that can be used to help calm an anxious dog during storms or any other type of situation that might create anxiety for your dog.
Many pet parents can find CBD products for their pets to suppress an over-stimulated dog. CBD can be found in a variety of forms. There is the liquid that can be put on food or given directly, or there are threats that can be given.
If you choose to have your dog by your side or in a crate, whatever their safe place may be, anti-anxiety blankets can be a good option as well.
Tip: If they don’t really have a safe space, find a place in your house away from windows and doors that lead to outside. Then put their favorite toys, their bed, treats, and blankets in the space to help get them acclimated. I will take a few weeks to get them familiar with that space, so try to plan a few weeks ahead of any major storm or storm season.