Typhoon Champi forecast to pass just south of Guam as a Category 3 storm

Champi became a typhoon Saturday morning, Guam time, and forecasters expect it to reach Category 3 as its center passes just south of Guam on Sunday, local time. A typhoon warning covers Guam and Rota. The National Weather Service warns most metal-roof homes on Guam will be severely damaged and power outages could last days to weeks; it forecasts 12 to 20 inches of rain and waves up to 35 feet. Gov. Lou Leon Guerrero is raising Guam to Condition of Readiness 1.