1. Reservoirs, rivers and snowpack are too low to power hydroelectric dams without further imperiling endangered salmon runs.

2. However, Diffenbaugh says, that won't change how the snowpack responds to climate change.

3. This year's massive snowpack is thawing, causing rivers and streams to surge and prompting flood warnings.

4. Seismic activity may also trigger failure in the snowpack and avalanches.

5. Snowpack was also lighter than normal in Colorado, which depends on mountain meltwater for much of its freshwater.

6. By Saturday morning, cold air had spread over the region, turning the snowpack bulletproof.

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7. Unless it's an unusually warm storm, most of the winter precipitation is stored as snowpack.

8. The Norwegians are born on skis, they'll say, because the whole country is one giant snowpack.

9. The story is the same in other parts of the northern hemisphere, where snowpack is a natural, and critical, water reservoir.

10. The flooding is a byproduct of unexpectedly heavy spring rains in the Upper Plains and above-average snowpack.

11. Rising temperatures over the Rockies will add to the flood threat, releasing water from the remaining snowpack.

12. Didn't the engineers get the memo about the record snowpack from last winter?

13. Boulder depends on runoff from mountain snow, but the snowpack at lower elevations has evaporated.

14. Next, a powder cloud, as the enormous forces of the collapsing snowpack blow loose snow into the air.