Back-to-back storms will bring significant precipitation to the Pacific Northwest and California in the coming days.

A pair of back-to-back storms were forecast to dump heavy snow and rain over parts of the Pacific Northwest, northern California and the Rockies this week, triggering winter storm and flood warnings.

A pair of atmospheric rivers will spread rounds of rain and snow over the next several days. A pair of potent storm systems known as atmospheric rivers are spreading rounds of rain and snow across the Pacific Northwest and Northern California over the next several days.