Some 14,000 firefighters facing changing weather conditions battled more than a dozen large wildfires across California, including a growing blaze that was slowly pushing toward the Lake Tahoe resort region.

Winds and temperatures were expected to pick up in coming days while humidity drops, adding to the challenges endured by crews working in rugged terrain.

“That’s what’s closing the window of opportunity we’ve had to make progress and really get hold of the fire,” said Daniel Berlant, assistant deputy director of the state firefighting agency.

Flames churned through mountains just southwest of the Tahoe Basin, a home to thousands and recreational playground for millions of tourists who visit the alpine lake in summer, ski at the many resorts in winter and gamble at its casinos year-round.

Johnny White and Lauren McCauley decided to flee their home in the mountains above Lake Tahoe once they could see flames on the webcam at their local ski resort.

Even as ash rained down under a cloud of heavy smoke, the couple wasn’t panicked because they had an early warning Thursday to leave their home near Echo Summit, about 10 miles (16 kilometers) south of the lake, and wanted to avoid last-minute pandemonium if the wildfire continued its march toward the tourist destination on the California and Nevada border.