The best thing we've done for Bentley (besides puppy school and a dog whisperer) was to sit on the porch with him as a puppy during storms. I so enjoy being on the porch during a good rain and/or storm. I find it most calming, and because of this, Bentley is fearless of monsoons, thunder and lightening. It's the best free training we could have done. I absolutely recommend a little front porch storm sitting for you and your pup. This way your dog won't go running to take cover or do the shake during the next thunderstorm.