Then, this evening I was having dinner at a friend's house when we had to get all the kids indoors because the wind really picked up and branches were falling from trees. The kids all rushed to the basement screaming, "tornado, tornado!" They're a little dramatic!
When I got home, my husband called for me to come outside to see a beautiful double rainbow. The photos do not do it justice. I think we have some more unsettled weather in the forecast this week!
I was curious about what causes a double rainbow and here is an explanation I found at eo.ucar.edu/rainbows/
What makes a double rainbow?Sometimes we see two rainbows at once, what causes this? We have followed the path of a ray of sunlight as it enters and is reflected inside the raindrop. But not all of the energy of the ray escapes the raindrop after it is reflected once. A part of the ray is reflected again and travels along inside the drop to emerge from the drop. The rainbow we normally see is called the primary rainbow and is produced by one internal reflection; the secondary rainbow arises from two internal reflections and the rays exit the drop at an angle of 50 degrees° rather than the 42°degrees for the red primary bow. Blue light emerges at an even larger angle of 53 degrees°. his effect produces a secondary rainbow that has its colors reversed compared to the primary, as illustrated in the drawing, adapted from the Science Universe Series Sight, Light, and Color.
It is possible for light to be reflected more than twice within a raindrop, and one can calculate where the higher order rainbows might be seen; but these are never seen in normal circumstances.