How much snowpack in the Colorado River Basin comes from atmospheric rivers?

Based on data from the Global Forecast System model, this image shows the total precipitable water forecast to be in the atmosphere at 11 a.m., April 6, 2018. Credit: Climate.gov

Atmospheric rivers, commonly defined as long, narrow corridors in the atmosphere, much like rivers in the sky, transport moisture from the tropics. These “rivers” can produce large amounts of snow accumulation when they make landfall during the cold season. With over half of the streamflow in the Colorado River originating from water released by snow melt, it’s important to understand how atmospheric rivers can affect snowpack in the region.

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