Great photo, Stan!

Where I grew up around the Great Lakes the expression was "Red Sky at night, sailors delight; red sky in the morning, sailors take warning." (Not many shepards where I grew up.)

Ever wonder what the logic is behind that saying?

Weather generally 'moves' from west to east because of the earth's rotation. If there are clouds in the sky to reflect the rising sun in the east (where it must be clear), it means that cloudy weather is moving into the area with the possibility of rain and storms.

If there are clouds in the sky to reflect the setting sun in the west, then an area of clearing is moving in to replace the clouds. Sailors will be happy.