Weather Forecast for Grand Canyon National Park

* WHAT...Southwest winds 20 to 30 mph with gusts up to 45 mph expected. * WHERE...Navajo Nation in Arizona, Little Colorado River Valley, Mogollon Rim, Kaibab Plateau, Marble and Glen Canyons, Grand Canyon Country, Coconino Plateau, and Yavapai County Mountains. * WHEN...From 11 AM MST /noon MDT/ to 8 PM MST /9 PM MDT/ Friday. * IMPACTS...Gusty winds will blow around unsecured objects. Travel will be difficult, especially for high profile vehicles.

Winds this strong can make driving difficult, especially for high profile vehicles, such as RVs, campers, and tractor trailers. Use extra caution. Secure loose outdoor objects that could be blown around or damaged by the wind.

* WHAT...Critical fire weather conditions expected. Southwest winds 15-25 mph, gusts to 40 mph Friday, southwest winds 20 to 30 mph with gusts up to 50 mph Saturday and Sunday. Expect winds to remain elevated Saturday night. Relative humidity as low as 7 percent desert areas, to 15-20 percent in forested locations. * WHERE...Kaibab Plateau, Marble and Glen Canyons, Grand Canyon Country, Coconino Plateau, Yavapai County Mountains, Northeast Plateaus and Mesas Hwy 264 Northward, Chinle Valley, Chuska Mountains and Defiance Plateau, Little Colorado River Valley in Coconino County, Little Colorado River Valley in Navajo County, Little Colorado River Valley in Apache County, Western Mogollon Rim, Eastern Mogollon Rim, White Mountains, Northern Gila County, Yavapai County Valleys and Basins, Oak Creek and Sycamore Canyons, Black Mesa Area, and Northeast Plateaus and Mesas South of Hwy 264. This includes portions of the Apache-Sitgreaves, Coconino, Kaibab, Prescott, and Tonto national forests. * WHEN...From 11 AM MST /noon MDT/ Friday to 8 PM MST /9 PM MDT/ Sunday. * IMPACTS...Rapid spread and growth of any new or existing fires. Fires will have the potential to exhibit extreme fire behavior. Elevated potential for new fire starts. Winds may damage power lines resulting in new fire starts.

Do your part: No open flames or sparks, keep vehicles off of dry grass, properly dispose of cigarette butts, and avoid power equipment that creates sparks. One less spark, one less wildfire. Obey all fire restrictions. To view a map of current fire restrictions, go to wildlandfire.az.gov/fire-restrictions. A Red Flag Warning is issued when we identify weather conditions that promote rapid spread of fire which may become life-threatening. This does not mean there is a fire. These conditions are either occurring now or will begin soon. It is important to have multiple ways to receive information from authorities. Please advise the appropriate officials or fire crews in the field of this Red Flag Warning.

* WHAT...For the Lake Wind Advisory, south winds 15 to 25 mph with gusts up to 35 mph expected. For the Wind Advisory, south winds 15 to 25 mph with gusts up to 40 mph expected. * WHERE...In Arizona, Lake Havasu and Fort Mohave County. In California, San Bernardino County-Upper Colorado River Valley County. * WHEN...For the Lake Wind Advisory, from 11 AM PDT /11 AM MST/ to 8 PM PDT /8 PM MST/ Friday. For the Wind Advisory, from 11 AM PDT /11 AM MST/ to 11 PM PDT /11 PM MST/ Saturday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Strong winds and rough waves on area lakes will create hazardous conditions for small craft.

Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. Secure outdoor objects. Strong winds and rough waves on area lakes will create hazardous conditions for small craft.

* WHAT...Southwest winds 20 to 30 mph with gusts up to 50 mph expected. * WHERE...Portions of northwest Arizona, southeast California, and south central and southern Nevada. * WHEN...From 11 AM PDT /11 AM MST/ Friday to 5 AM PDT /5 AM MST/ Sunday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.

Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. Secure outdoor objects. Strong winds and rough waves on area lakes will create hazardous conditions for small craft.

* WHAT...For the Lake Wind Advisory, south winds 15 to 25 mph with gusts up to 35 mph expected. For the Wind Advisory, south winds 15 to 25 mph with gusts up to 40 mph expected. * WHERE...In Arizona, Lake Havasu and Fort Mohave County. In California, San Bernardino County-Upper Colorado River Valley County. * WHEN...For the Lake Wind Advisory, from 11 AM PDT /11 AM MST/ to 8 PM PDT /8 PM MST/ Friday. For the Wind Advisory, from 11 AM PDT /11 AM MST/ to 11 PM PDT /11 PM MST/ Saturday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Strong winds and rough waves on area lakes will create hazardous conditions for small craft.

Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. Secure outdoor objects. Strong winds and rough waves on area lakes will create hazardous conditions for small craft.