(Bloomberg) -- He changed the way the world looks at hurricanes, and in later years he challenged the science behind climate change, but most people will probably remember Bill Gray as the creator of the modern seasonal forecast for Atlantic storms.

Gray died Saturday at the age of 86. He was professor emeritus of atmospheric science at Colorado State University in Fort Collins, where he had served as a full-time professor from 1961 to 2005.

“There were efforts to look at seasonal predictions all the way back to the 1930s but none of them amounted to much,” said Chris Landsea, science and operations officer at the National Hurricane Center’s Technology & Science Branch. “He has shown that there is skill, that you can do better, much more than just flipping a coin or random chance.”

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