In California, construction crews are trying to lower the level of Lake Oroville and repair emergency spillways at the Oroville Dam, about 75 miles north of Sacramento, to prevent catastrophic flooding downstream. A secondary spillway was opened Monday after the main spillway, which is supposed to safely release water when the lake level is too high, had developed a huge hole, as we reported. Rain is forecast for later this week in Northern California, and nearly 200,000 people who live downstream have been evacuated from the area.