The fire had spread to more than 177,000 acres and was 14 percent contained, according to Cal Fire.
Thousands of people along the southern and western shores of Lake Tahoe were ordered to evacuate on Monday as the Caldor fire intensified amid dry and windy conditions, threatening the popular vacation destination on the California-Nevada border. The fire had scorched more than 177,000 acres south and west of the lake, and was 14 percent contained as of 11:45 a.m. local time on Monday, according to Cal Fire. Fire officials estimated that more than 20,000 structures could be threatened by the blaze, the latest to grip California during what has been a particularly unforgiving summer for fire crews in the Western United States. The National Weather Service issued a red flag warning on Monday for the northern Sierra Nevada and the southern Cascades, meaning that extremely dry conditions and wind gusts of up to 35 miles per hour were likely to cause wildfires to spread in the mountains. The warning will remain in effect until 11 p.
