It’s May, but California is already getting a taste of what peak fire season could look like, as out-of-control blazes pose a danger to infrastructure and some of the most threatened trees on the planet. A combination of high winds and heat has contributed to a trio of major fires in Southern California.

The largest among them is the Santa Rosa Island Fire, which started over the weekend in Channel Islands National Park after a stranded sailor used flares to signal for help. The blaze has consumed roughly 16,600 acres—almost a third of the entire island. While some structures have been lost, the biggest is a grove of Torrey pines, which are among the rarest trees in the world.

Torrey pines are considered critically endangered by the International Union for Conservation of Nature. The group has warned that the grove on the island faces “high potential risk from destructive fires.” While the Santa Rosa Island Fire burned through the grove, there’s hope that the worst-case scenario may not have come to pass.

“Upon initial assessments, fire crews are observing that the fire intensity was low and that the stand remains intact,” Mike Theune, the fire information officer assigned by the federal government, writes in an email. “When safe to do so, a fire effects crew will be assigned to make a full determination of condition and any long-term effects.”

While smaller, the Sandy Fire has forced thousands to evacuate in and around Simi Valley, located about 35 miles northwest of downtown Los Angeles. Fire activity increased on Tuesday morning as high winds whipped the flames across nearly 1,400 acres. The fire is only 5 percent contained, while the Santa Rosa Island Fire isn’t contained at all.