"Spring snowmelt triggers flood warnings in California and Lake Tahoe"

California is facing a serious flooding threat as rising temperatures melt the massive snowpack from the state's extreme winter. The area of concern is Tulare Lake, located south of Fresno, which has returned for the first time in more than 25 years. A reservoir upstream is expected to get three times its capacity in the next couple of months, meaning towns near the lake and along rivers and streams that lead to the lake are facing a dangerous flooding threat. Most of Yosemite National Park will be temporarily closed starting Friday due to the forecast of flooding.