Fact or Fiction?: If the Sky Is Green, Run for Cover—A Tornado Is Coming

Hang on Dorothy, you may be in for a rough ride when trying to predict cyclones by the color of the sky














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Joshua Wurman at the Center for Severe Weather Research in Boulder, Colo., agrees: "I wouldn't call [the green sky] one of the burning issues in tornado science." Nevertheless, the research that is out there suggests that the green colored sky some might observe during a severe thunderstorm does have limited predictive power for those who live in areas where severe weather occurs, like Dorothy—and her little dog, too.


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  1. 1. Allen 08:48 AM 7/12/08

    I moved to the mid-west, late in life and was surprised to see the eerie green cast sky. Unlike a blue sky, the air around you, when say looking at the house across the street, takes on a strange glow that almost makes you squint; it goes from gray darkness to a bright radium-dust effect like someone turned on a florescent bulb. I've also seen that happen where the glow is more orange than green. The green sky, as they said, does not always indicate that a storm will hit where you are, let alone a tornado (something I haven't seen here). I did get to see something that I'd always wanted to see and fascinated me as a child (from Portland, Oregon): Hail the size of golf balls. That was preceded by a green sky and followed by a clear sunny sky. The hail was lenticular but held up one way, the profile on most that fell was the easily size of a golf ball. Be careful what you wish for as a child. :-)

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  2. 2. moronpolitics 07:56 PM 4/13/12

    Well, I suppose that where you live might make a difference in how well these various tips and old wives' tales work, but I will say two things. 1. if you are in Dallas, Texas and see a green sky you can almost always expect hail. and 2. if you are in Wichita Falls, Texas and a storm front is coming through...For the love of G_D, Man... GO SOMEWHERE ELSE!!

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  3. 3. JovanW. 10:54 PM 4/9/13

    I've lived on the prairies in both the US and Canada for 65 years. If the sky turns green, TAKE COVER! It may not be a tornado, but you can be sure the weather is about to take a turn for the much worse!

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Fact or Fiction?: If the Sky Is Green, Run for Cover—A Tornado Is Coming

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