Park Urges Caution as Extreme Heat Grips Grand Canyon
"Temperatures at Phantom Ranch are forecast to reach or exceed 110°F (43°C) midday Monday through Tuesday."
Grand Canyon National Park is warning visitors of dangerously extreme temperatures expected from midday Monday through Tuesday, with forecasts showing the mercury hitting or exceeding 110°F (43°C) at Phantom Ranch.
The heat presents a serious safety risk. The National Park Service (NPS) recommends that hikers avoid being on the trails during the midday hours, following a recent spike in heat-related incidents.
Fatalities Linked to Heat
The past week has seen three deaths in the canyon attributed to heat illness:
- June 16: Two hikers, aged 67 and 68, were found deceased on the North Kaibab Trail. The NPS stated they appeared to have succumbed to symptoms of heat-related illness.
- June 12: A 72-year-old hiker died on the South Kaibab Trail after becoming ill from the heat.
The "Hidden" Danger of Temperature Variation
Hikers descending into the canyon may be deceived by the conditions. Temperatures at the canyon rim are typically 20 to 25°F cooler than at the bottom.
The most dangerous part of the hike is the return trip. While hikers initially experience cooler temperatures as they descend, they face a grueling climb back to the rim under increasingly intense heat.
Wildfire Adds to Regional Concerns
In a separate but related development, the Pocket Fire is burning near Oak Creek Canyon, prompting evacuations. The wildfire is currently estimated at 300 acres in size.
- The Coconino National Forest has closed campgrounds, picnic sites, and trailheads in the affected area as of June 20.
- A 30-mile stretch of state highway remains closed in both directions due to the fire.