Tue, 03/31/2020
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What keeps people awake at night? For baseball players, it might be a late-breaking fastball. It looks like you could hit it right out of the park until it curves. For meteorologists, an equivalent problem is called the Madden-Julian oscillation, or the MJO. Michael McPhaden and Chidong Zhang are featured.



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 The U.S. government is closed. This site will not be updated; however, NOAA websites and social media channels necessary to protect lives and property will be maintained. To learn more, visit