It is very good to pay attention to them. Many people pass it off as animals just being animals, but there has been too many things I have personally experienced to shrug it off as nonsense. One of our dogs is afraid of any loud noise so he always gets upsets when storms happen. But the other two are very laid back about it. On two different occasions, the two little ones became very upset about a storm, so we went to the basement to ride it out. One of them, a tornado tore through the city that is about 4 miles from us, jumped back up and was coming down as it passed over our house. It took part of our roof and you could see a path through the trees where it cut through. The other storm had a tornado that was sighted my many people but it stayed mostly up high and did not do a lot of damage. But the dogs knew something was happening.