In 1984 I was invited to participate in a NATO Workshop at the University of St. Andrews in St. Andrews, Scotland. My wife, Betty, went with me and after the meeting we rented a car and toured some of the historical sites in Scotland. On that trip we learned that on the Isle of Skye, if you can see the mainland, it is going to rain. If you can't, it is already raining. A similar situation occurs in the Denver area of Colorado. During the months of March and April, if you can see the mountains, it is going to snow. If you can't it is already snowing. On April 13, 2018 we could not see the mountains.