YELLOWSTONE NATIONAL PARK, Wyo. (AP) — The South Entrance to Yellowstone National Park opens to automobile traffic at 8 a.m. Friday.

The opening will allow spring visitors from the Jackson area to have access to Old Faithful and other areas. The park's North and West Entrances opened April 20, and the East Entrance opened May 4.

Park officials caution that spring weather in Yellowstone is unpredictable and may include cold temperatures, high winds and snow.