Expected

* WHAT...Dangerously hot conditions. Afternoon temperatures 98 to 114. Major to Extreme Heat Risk. * WHERE...Southern Gila County and portions of northern Pinal County and eastern Maricopa County. * WHEN...Until 8 PM MST Monday. * IMPACTS...Increase in heat related illnesses, including heat cramps, heat exhaustion, and heat stroke. Heat stroke can lead to death. An Extreme Heat Warning means that a period of very hot temperatures, even by local standards, will occur. Actions should be taken to

* WHAT...Dangerously hot conditions. Afternoon temperatures 109 to 118. Major to Extreme Heat Risk. * WHERE...Mostly rural areas of Maricopa County and northern Pinal County. * WHEN...Until 8 PM MST Monday. * IMPACTS...Increase in heat related illnesses, including heat cramps, heat exhaustion, and heat stroke. Heat stroke can lead to death. * ADDITIONAL DETAILS...In Maricopa County, Call 2-1-1 to find a free cooling center, transportation, water and more. https://www.maricopa.gov/heat

* WHAT...Dangerously hot conditions. Afternoon temperatures 110 to 117. Major to Extreme Heat Risk. * WHERE...The Phoenix metropolitan area. * WHEN...Until 8 PM MST Monday. * IMPACTS...Increase in heat related illnesses, including heat cramps, heat exhaustion, and heat stroke. Heat stroke can lead to death. * ADDITIONAL DETAILS...In Maricopa County, Call 2-1-1 to find a free cooling center, transportation, water and more. https://www.maricopa.gov/heat

* WHAT...Dangerously hot conditions. Afternoon temperatures 108 to 119. Major to Extreme Heat Risk. * WHERE...Mostly rural portions of southwest Arizona and southeast California, including Joshua Tree National Park. * WHEN...Until 8 PM MST /8 PM PDT/ Monday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. An Extreme Heat Warning means that a period of very hot temperatures, even by local standards, will occur. Actions should be taken to lessen the impact of the extreme heat.

The National Weather Service in Riverton has issued a Red Flag Warning, which is in effect from 1 PM to 9 PM MDT Sunday. the Fire Weather Watch is no longer in effect. * IMPACTS: Low Humidities...Hot Temperatures...and Strong Gusty Winds could cause erratic fire behavior. * AFFECTED AREA: In Central WY Fire Zones...283...285. In North Central WY Fire Zones...275...276...282. * COUNTIES AFFECTED: In Central WY...Fremont...Natrona. In North Central WY...Big Horn...Hot Springs...Johnson...Park

The National Weather Service in Riverton has issued a Red Flag Warning, which is in effect from 1 PM Sunday to 9 PM MDT Monday. the Fire Weather Watch is no longer in effect. * IMPACTS: Low Humidities...Hot Temperatures...and Strong Gusty Winds could cause erratic fire behavior. * AFFECTED AREA: In Central WY Fire Zone....289. In Southwest WY Fire Zones...277...279. In West Central WY Fire Zone....278. * COUNTIES AFFECTED: In Central WY...Fremont...Natrona.

* WHAT...Dangerously hot conditions with high temperatures of 98 to 108. * WHERE...Portions of central, south central, and southeast Montana and north central Wyoming. * WHEN...Until midnight MDT tonight. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. * ADDITIONAL DETAILS...Low temperatures in the 60s and 70s tonight followed by high temperatures in the 90s Sunday may cause lingering heat stress, especially for those without relief from the heat.

...CRITICAL FIRE WEATHER CONCERNS THIS WEEKEND... * WIND...Southeast winds today will become west and northwest on Sunday with speeds at 15 to 25 mph with gusts to 35 mph. * HUMIDITY...minimum relative humidity ranging 8 to 20%. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. Please advise the appropriate officials or fire crews in these areas of this Red Flag Warning.

The National Weather Service in Elko has issued a Red Flag Warning for gusty winds and low relative humidity, which is in effect from 2 PM to 11 PM PDT Sunday. * Affected Area...Fire Weather Zone 470 Eastern Elko County. * Winds...West to northwest 15 to 25 mph with gusts up to 40 mph. * Relative Humidity...As low as 8 percent. * Impacts...The combination of gusty winds and low humidity will create critical fire weather conditions. A red flag warning means that critical fire weather conditions

* 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