Expected

* WHAT...Dangerously hot conditions with temperatures up to 104 expected. * WHERE...Daniels, Dawson, Eastern Roosevelt, Prairie, Richland, Sheridan, Western Roosevelt, and Wibaux Counties. * WHEN...From noon Saturday to 6 PM MDT Sunday. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car

* WHAT...For the Extreme Heat Warning, dangerously hot conditions with temperatures up to 108 expected. For the Lake Wind Advisory, west winds 10 to 20 mph with gusts up to 30 mph expected. * WHERE...Central and Southeast Phillips, Central and Southern Valley, Garfield, and Petroleum Counties. * WHEN...For the Extreme Heat Warning, from noon Saturday to noon MDT Sunday. For the Lake Wind Advisory, from 6 PM Saturday to 6 PM MDT Sunday. * IMPACTS...Strong winds and rough waves on area lakes will create

* WHAT...Dangerously hot conditions, with temperatures around 108 to 115 degrees expected below 4000 feet. * WHERE...Northern Gila and Yavapai counties below 4000 feet; including the Verde Valley and Black Canyon City. * WHEN...Until 8 PM MST Monday. * IMPACTS...Most individuals will be at risk for heat-related illnesses without effective cooling or adequate hydration, especially with prolonged outdoor exposure. Drink plenty of fluids, stay in an air-conditioned room, stay out of

* WHAT...Dangerously hot conditions, with temperatures around 105 to 110 degrees expected. * WHERE...Marble Canyon, Glen Canyon, and Oak Creek Canyon; including Page and Sedona. * WHEN...Until 8 PM MST /9 PM MDT/ Monday. * IMPACTS...Most individuals will be at risk for heat-related illnesses without effective cooling or adequate hydration, especially with prolonged outdoor exposure. Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.

* WHAT...Dangerously hot conditions expected below 4000 feet, with daytime temperatures ranging from 103 to 108 degrees at Havasupai Gardens, and 111 to 115 degrees at Phantom Ranch. * WHERE...Lower elevations of the Grand Canyon. * WHEN...Until 8 PM MST Tuesday. * IMPACTS...Most individuals will be at risk for heat-related illnesses without effective cooling or adequate hydration, especially with prolonged outdoor exposure. This warning is reserved for only the hottest days of the year and is

...PARTICULARLY DANGEROUS SITUATION (PDS) RED FLAG IN EFFECT 2PM UNTIL 8PM SATURDAY FOR THE FOLLOWING AREAS: KITTITAS VALLEY (ZONE 690) - LOWER COLUMBIA BASIN OF OREGON AND WASHINGTON (ZONE 691) - NORTHERN BLUE MOUNTAINS OF OREGON AND WASHINGTON (ZONE 692) - CANYON GRASSLANDS OF WALLOWA COUNTY AND SOUTHEAST WASHINGTON GRANDE RONDE VALLEY (ZONE 693) - GRANDE RONDE VALLEY OF OREGON (ZONE 694) - EAGLE CAP WILDERNESS (ZONE 695) - JOHN DAY VALLEY (ZONE 696) - AND CENTRAL MOUNTAINS OF OREGON (ZONE 700)...

...PARTICULARLY DANGEROUS SITUATION (PDS) RED FLAG IN EFFECT 2PM UNTIL 8PM SATURDAY FOR THE FOLLOWING AREAS: KITTITAS VALLEY (ZONE 690) - LOWER COLUMBIA BASIN OF OREGON AND WASHINGTON (ZONE 691) - NORTHERN BLUE MOUNTAINS OF OREGON AND WASHINGTON (ZONE 692) - CANYON GRASSLANDS OF WALLOWA COUNTY AND SOUTHEAST WASHINGTON GRANDE RONDE VALLEY (ZONE 693) - GRANDE RONDE VALLEY OF OREGON (ZONE 694) - EAGLE CAP WILDERNESS (ZONE 695) - JOHN DAY VALLEY (ZONE 696) - AND CENTRAL MOUNTAINS OF OREGON (ZONE 700)...

* WHAT...Dangerously hot conditions with several days of Major to Extreme heat risk. * WHERE...Indian Wells Valley, Mojave Desert, and Mojave Desert Slopes. * WHEN...Until 11 PM PDT Monday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. * ADDITIONAL DETAILS...Dangerously hot conditions with high temperatures up to 112. Overnight lows will range from 75-80 degrees. Drink plenty of fluids, stay in an air-conditioned room, stay out of

* WHAT...Dangerously hot conditions with high temperatures up to 110 expected, and overnight low temperatures in the 80s. * WHERE...Arches/Grand Flat and Canyonlands/Natural Bridges. * WHEN...From noon Saturday to 9 PM MDT Monday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.

* WHAT...Dangerously hot conditions with temperatures of 105 to 112 expected. * WHERE...Antelope Valley, Eastern Antelope Valley Foothills, and Western Antelope Valley Foothills. * WHEN...Until 8 PM PDT Sunday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. * ADDITIONAL DETAILS...Heat hazards may extend into next week for portions of the region. Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.