Even though it’s Labor Day I’m not going to say that summer is over. However, when I start seeing temperature inversions on the Great South Bay I know shorter days and cooler weather are on the way.
This illusion is caused by something called a temperature inversion. It sounds technical, but the concept is simple: The air is much colder near the bay than above it.
Normally the opposite is true and everything looks fine, but when cold air settles in overnight and then warm air comes in to replace it, a thin layer of cold air is trapped just above the water’s surface. That cold air bends light in such a way as to make things look higher or taller than they really are.
So now you know…
Oh, and one more thing. As far as I’m concerned, here on Long Island the De facto end of summer should be Columbus day not Labor Day.