Atmospheric River
What river has the largest flow of water on Earth? You guessed it, the Amazon, with an average water discharge of 209,000 m3/s! But when meteorologists talk about a massive “river of moisture,” they’re not referring to the Amazon! To meteorologists, an atmospheric river is a broad band or region of water vapour that transports vast quantities of moisture over great distances. It could be said that the biggest rivers in the world are actually in the sky! For those living on the West Coast, the rain yesterday was indeeed another episode of atmospheric river.