An entire community cut off, firefighters huddled on the side of a mountain after water swept their truck away, and -- with rescue helicopters grounded -- no way to reach them. This is the scene facing authorities Thursday in Boulder County, Colorado, in the wake of what Sheriff Joe Pelle called a "devastating storm" that dumped more than half a foot of rain on the region during a 19-hour period. The widespread flash flooding washed out roads, pushed dams to their limits and beyond and killed at least three people along Colorado's Rocky Mountain range, from Boulder south to Colorado...