Purple skies might seem gorgeous, but sometimes they appear for scary reasons - they can be caused by hurricanes, wildfires, or dust storms. The concentration of vapor in the air increases, and the light scatters more than usual. Green skies might look just as spectacular as purple ones, but they actually also scream danger! They're usually there to tell you a thunderstorm, hailstorm, or tornado is somewhere nearby. Let's explore some other signs of natural disasters to look out for.

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