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The lights atop this residential high rise building will go on at dusk, and remain on all night. Every day, the National Weather Service forecast for San Francisco will be reviewed, and the color predicting the next day's weather selected.image source
Here's how to remember what each color means:
Glowing red, warmer weather ahead
Shining blue, colder weather in view
Going green, rain foreseen
Amber light, no change in sight.
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Other weather beacons across the country and the world include:- John Hancock Building, Boston, MA
- Syracuse, N.Y
- Minneapolis, M.N.
- Dubuque and Des Moines, Iowa
- Bismarck, N.D.
- Toronto, Canada
- Brisbane and Adelaide, Australia