Expires:202507140200;Remove:202507140200;218944
WWUS75 KFGZ 102001
NPWFGZ

URGENT - WEATHER MESSAGE
National Weather Service Flagstaff AZ
101 PM MST Thu Jul 10 2025


AZZ006-140200-
/O.CON.KFGZ.XH.W.0003.000000T0000Z-250714T0200Z/
Grand Canyon Country-
Including the cities of Grand Canyon Village, North Rim, and
Supai
101 PM MST Thu Jul 10 2025

...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 7 PM MST SUNDAY 
BELOW 4000 FEET...

* WHAT...Dangerously hot conditions below 4000 feet, with daytime 
  temperatures ranging from 105 degrees at Havasupai Gardens, to 115 
  degrees at Phantom Ranch.

* WHERE...Lower elevations of the Grand Canyon.

* WHEN...Until 7 PM MST Sunday.

* IMPACTS...Most individuals will be at risk for heat-related 
  illnesses without effective cooling or adequate hydration, 
  especially with prolonged outdoor exposure.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This warning is reserved for only the hottest days of the year and 
is issued when temperatures are expected to rise to dangerous levels.

Day hikers on Bright Angel Trail should descend no farther than 1 
1/2 miles from the upper trailhead. Between the hours of 10 AM and 4 
PM, hikers should be out of the canyon or at Havasupai Gardens or 
Bright Angel campgrounds, physical activity is discouraged. All 
hikers should have adequate gear, including a wide-brimmed hat, 
sunscreen, salty snacks, sufficient water, and electrolyte mix. 
Doubling your calorie intake helps maintain your energy.

Hike smart.

&&

$$

NWS Flagstaff