Extreme weather hammered California through the first weeks of the year – but also offered a badly needed reprieve. The deep snow dumped on the Sierra Nevada during a series of strong storms left the state with a robust water savings account of sorts.

As the weather warms over the spring and summer months, the melting snow fills rivers, streams and reservoirs long after California’s rainy season has ended. Considered one of its most important reservoirs, the snowpack provides roughly a third of California’s water supply.