When the flame is red, it's warm weather ahead!
When the flame is gold, watch out for cold!
When the flame is blue, there's no change in view!
When there's a flickering flame, expect snow or rain!
On top of the Wisconsin Gas Building, in downtown Milwaukee, is a 21-foot weather beacon, which apparently has been used as a harbor light and navigation aid for mariners on Lake Michigan. It's lit up every night, and is supposed to change colors, based on the little poem above.
Except that most of the time...it's blue. When it's sub-zero (before the wind-chill) in the middle of January...it's blue. When it's a beautiful, 80-degree day in the middle of July...it's blue. I can count the number of times I've seen it red or gold (and I can see it from my house) on both hands. And I have *never* seen it flicker.