California is a magical place in the winter, the monarchs return to the state to overwinter, Santa Claus arrives on a surfboard, and twice in two months, the waves get very, very high. King Tides, the ...

Jeremy Siegel: You're listening to GBH's Morning Edition. You might have heard the term king tide before or seen videos of the Seaport and other parts of the coast flooding when the king tide comes in ...