Expected

* 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 8 PM PDT Wednesday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. * ADDITIONAL DETAILS...Dangerously hot conditions with high temperatures up to 112 degrees. Overnight lows will range from 75-80 degrees. Drink plenty of fluids, stay in an air-conditioned room, stay out of

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT THIS EVENING DUE TO GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FALL RIVER COUNTY AREA, NORTHERN FOOT HILLS, EASTERN FOOT HILLS, CUSTER COUNTY PLAINS, PINE RIDGE AREA, BUTTE COUNTY AREA, PERKINS COUNTY, WEST CENTRAL PLAINS, ZIEBACH COUNTY, HAAKON COUNTY AREA, BADLANDS AREA, BENNETT COUNTY AREA, AND WESTON COUNTY PLAINS... * AFFECTED AREA...Fire Weather Zones 317, 322, 323, 324, 325, 326, 327, 328, 329, 330, 331, 332, and 333. * TIMING...Until 8 PM MDT this evening.

* WHAT...Dangerously hot conditions with highs 110 to 120 degrees across the Mojave Desert. Highs 95 to 105 degrees across most of the southern Great Basin and Arizona Strip. Little to no overnight relief is expected, particularly in the Mojave Desert where lows of 80 to 95 degrees are forecast. This will result in Major-to-Extreme Heat Risk. * WHERE...Portions of northwest Arizona, southeast California, and south central and southern Nevada. * WHEN...Until 8 PM PDT /8 PM MST/ Saturday.

The National Weather Service in Grand Junction has issued a Red Flag Warning for gusty winds, low relative humidity and dry fuels, which is in effect from 1 PM to 7 PM MDT Tuesday. * AFFECTED AREA...In Colorado, Fire Weather Zone 201 Routt Forecast Area, Fire Weather Zone 202 White River Forecast Area and Fire Weather Zone 205 Colorado River Headwaters. * TIMING...From 1 PM to 7 PM MDT Tuesday. * WINDS...West 10 to 20 mph with gusts up to 30 mph. * RELATIVE HUMIDITY...7 to 12 percent.

* AFFECTED AREA...In Colorado, Fire Weather Zone 207 Southwest Colorado Lower Forecast Area. In Utah, Fire Weather Zone 491 Southeast Utah. * TIMING...Until 8 PM MDT this evening. * WINDS...West 10 to 20 mph with gusts up to 30 mph. * RELATIVE HUMIDITY...9 to 14 percent. * IMPACTS...Any fire that develops will catch and spread quickly. Outdoor burning is not recommended. A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of

The National Weather Service in Denver CO has issued a Red Flag Warning. * AFFECTED AREA...Fire Weather Zones 211 and 213. * TIMING...From 1 PM to 7 PM MDT Tuesday. * WINDS...West 10 to 20 mph with gusts up to 35 mph. * RELATIVE HUMIDITY...Between 13 to 17 percent. * IMPACTS...Conditions will be favorable for rapid fire spread. Avoid outdoor burning and any activity that may produce a spark and start a wildfire. Be sure you are signed up for your local emergency alert system. You

* AFFECTED AREA...Fire Weather Zone 204 Eastern Panhandle/Crescent Lake NWR. * TIMING...Until 9PM MDT. * WINDS...North 25 to 35 mph with gusts up to 45 mph. * RELATIVE HUMIDITY...As low as 18 percent. * TEMPERATURES...Into the upper 90s to low 100s. * LIGHTNING...An isolated dry lightning strike cannot be ruled out. * IMPACTS...Any fire starts have the potential to spread rapidly and be difficult to control. A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of

* WHAT...Dangerously hot conditions, with temperatures around 105 to 110 degrees expected. * WHERE...Marble and Glen Canyons; including Page. * WHEN...Until 8 PM MST /9 PM MDT/ Wednesday. * 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, with temperatures around 105 to 112 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 this evening. * 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 expected below 4000 feet, with daytime temperatures ranging from 102 to 107 degrees at Havasupai Gardens, and 110 to 114 degrees at Phantom Ranch. * WHERE...Lower elevations of the Grand Canyon. * WHEN...Until 8 PM MST Wednesday. * 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