Expected

The threat for impactful heat has ended.

The threat for high winds has ended.

* WHAT...Dangerously hot conditions with high temperatures up to 108 expected, and overnight low temperatures in the upper-70's. For the Heat Advisory, high temperatures up to 105 expected, with low temperatures in the mid-70s. * WHERE...Arches/Grand Flat and Canyonlands/Natural Bridges. * WHEN...For the Extreme Heat Warning, until 9 PM MDT Monday. For the Heat Advisory, from 9 PM Monday to 9 PM MDT Tuesday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events.

...RED FLAG WARNING IN EFFECT FROM 11 AM TO 8 PM MDT MONDAY 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... The National Weather Service in Rapid City SD has issued a Red Flag Warning. * AFFECTED AREA...Fire Weather Zones 317, 322, 323, 324, 325, 326,

* AFFECTED AREA...Fire Weather Zone 204 Eastern Panhandle/Crescent Lake NWR. * TIMING...Today, from 10AM to 10PM MDT. Monday, 11AM to 9PM MDT. * WINDS...Today, south 20 to 30 mph with gusts up to 45 to 50 mph. Monday, south winds changing to west winds by late afternoon 20 to 30 mph and gusts up to 45 mph. * RELATIVE HUMIDITY...Today, as low as 12 percent. Monday, as low as 16 percent. * TEMPERATURES...Today, up to 102. Monday, up to 101. * LIGHTNING...Some dry lightning may be possible by late Monday afternoon into early evening.

* AFFECTED AREA...Fire Weather Zone 210 Frenchman Basin. * TIMING...From 10 AM to 10 PM MDT. * WINDS...South 15 to 25 mph with gusts up to 35 mph. * RELATIVE HUMIDITY...As low as 21 percent. * LIGHTNING...None expected. * 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 strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior.

* AFFECTED AREA...Fire Weather Zone 204 Eastern Panhandle/Crescent Lake NWR. * TIMING...Today, from 10AM to 10PM MDT. Monday, 11AM to 9PM MDT. * WINDS...Today, south 20 to 30 mph with gusts up to 45 to 50 mph. Monday, south winds changing to west winds by late afternoon 20 to 30 mph and gusts up to 45 mph. * RELATIVE HUMIDITY...Today, as low as 12 percent. Monday, as low as 16 percent. * TEMPERATURES...Today, up to 102. Monday, up to 101. * LIGHTNING...Some dry lightning may be possible by late Monday afternoon into early evening.

* AFFECTED AREA...Fire Weather Zone 481 Western Ashley National Forest, Fire Weather Zone 482 Western Uintah Basin, Fire Weather Zone 483 Southern Ashley National Forest and Fire Weather Zone 484 Tavaputs Plateau. * WINDS...West 10 to 20 mph with gusts up to 30 mph. * RELATIVE HUMIDITY...5 to 10 percent lower elevations, 10 to 15 percent higher elevations. * IMPACTS...Critical fire weather conditions are expected. Any new fire starts or existing fires may spread rapidly.

* AFFECTED AREA...Fire Weather Zone 479 Wasatch Mountains, Fire Weather Zone 488 Manti National Forest, Fire Weather Zone 492 Central Utah West Desert, Fire Weather Zone 493 Central Utah Mountains, Fire Weather Zone 495 Color Country West Desert, Fire Weather Zone 496 Color Country Mountains and Fire Weather Zone 497 Mojave Desert. * WINDS...Southwest 10 to 20 mph with gusts up to 35 mph. * RELATIVE HUMIDITY...5 to 10 percent lower elevations, 10 to 15 percent higher elevations.

* AFFECTED AREA...Fire Weather Zone 489 San Rafael Swell. * WINDS...West 10 to 20 mph with gusts up to 30 mph. * RELATIVE HUMIDITY...As low as 8 percent. * IMPACTS...Critical fire weather conditions are expected. Any new fire starts or existing fires may spread rapidly. A Red Flag Warning means that critical fire weather conditions are either occurring now...or are imminent. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior.