 The U.S. Forest Service is temporarily closing a number of campsites in Arkansas and Oklahoma as storms are expected to bring heavy rain and possibly cause flooding in the region.

Forest Service spokeswoman C.J. Norvell says park rangers are going around to campsites Monday in the Ouachita and Ozark-St. Francis National Forests to let people know about the closings.

Norvell says the rangers hope to close off some sites before campers set up for the night. She says campers should contact the Forest Service before heading out.

The campsites that close because of the weather will reopen once the threat of flooding subsides.

Floodwaters killed 20 people at an Arkansas campground near Langley in 2010.