Several northern California campgrounds are closed after U.S. Forest Service officials said severe weather and dead trees have made the areas hazardous, television station KRCR reported.

Lassen National Forest officials closed campgrounds on Lake Almanor — Almanor North and Almanor South — due to dangers from dead trees. The forest service said more than 300 trees within the campgrounds are dead and considered hazardous. They have closed the campgrounds until the trees can be removed.

Forest service officials said the high number of dead trees is likely due to the years of extreme drought conditions.

Severe weather has delayed the opening of two other campgrounds in the forest as well. Cherry Hill Campground and Butte Meadows Campground on Humboldt Road will not open as planned today (April 28). Late snow melt, heavy runoff, and hazard tree removal led to the delay. Crews will begin cleaning up those campgrounds next week.