Heat wave prompts emergency trail closures in San Diego's backcountry
SAN DIEGO (FOX 5/KUSI) -- As triple-digit temperatures scorch the region this week, officials with the Cleveland National Forest have announced an emergency heat-related closure of several popular hiking areas in the Palomar Ranger District.
The closure, in effect from 10 a.m. on Wednesday, Aug. 6 through 8 p.m. on Friday, Aug. 8, is a direct response to dangerously high temperatures forecast across inland San Diego County.
The closures impact several high-traffic trails and recreation areas near Three Sisters Falls and Cedar Creek Falls, both of which have been the sites of previous heat-related rescues and emergencies.
Areas closed to the public include:
- Three Sisters Trail (3E04) – from Cha’chaany Hamuk trailhead
- Eagle Peak Trail (3E05) – from Cha’chaany Hamuk trailhead
- San Diego River Trail (2E05) – from San Diego River Gorge or Saddleback trailheads
- San Diego River Gorge Trail (2E04) – from San Diego River Gorge or Saddleback trailheads
The U.S. Forest Service says the move is necessary to protect public safety. With temperatures expected to exceed 100 degrees, the risk of heat exhaustion and heat stroke increases significantly — especially in remote, rugged areas with limited shade and water access.
Officials encourage residents and visitors to choose safer alternatives, such as visiting local beaches, shaded parks, or indoor recreational facilities during the advisory period. If you're still heading outdoors, remember to:
- Start early and finish hikes before noon
- Carry extra water and electrolytes
- Wear light, breathable clothing
- Know the signs of heat illness
To read the full emergency order or check for updates on trail conditions and alerts, visit the Cleveland National Forest website.
