The Signs as Natural Phenomena-

Aries//Volcano: unpredictable, violent, explosive.
Taurus//Earthquake: destabilizing, powerful, release tons of energy.
Gemini//Whirlwind: short lived, not too destructive, but exciting.
Cancer//Tsunami: overbearing, and can bring ruin.
Leo//Wildfire: contagious, fast moving, difficult to stop.
Virgo//Fog: even, misty, and conditional.
Libra//Monsoon: unpredictable, imbalanced.
Scorpio//Thunderstorm: powerful, dark, destructive.
Sagittarius//Tornado: short lived, bursts of energy.
Capricorn//Blizzard: cold and unrelenting.
Aquarius//Aurora Borealis: mystical, rare, phenomenal.
Pisces//Sunrise: symbol of new beginning.