Smoke from the Caldor Fire, shrouds Fallen Leaf Lake near South Lake Tahoe, Calif., Tuesday, Aug. 24, 2021. The massive wildfire, that is over a week old, has scorched more than 190 square miles, (492 square kilometers) and destroyed hundreds of homes since Aug. 14. It is now less than 20 miles from Lake Tahoe. (AP Photo/Rich Pedroncelli)
SOUTH LAKE TAHOE, Calif. — A Northern California fire that gutted hundreds of homes advanced toward Lake Tahoe on Wednesday as thousands of firefighters tried to box in the flames and tourists who hoped to boat or swim were enveloped in a thick yellow haze of the nation’s worst air.