Expected

Responsive action SHOULD be taken soon (within next hour)

Colorado Severe Red Flag Warning | Effective 08/05/2026 02:30

* AFFECTED AREA...In Colorado, Fire Weather Zone 205 Colorado River Headwaters and Fire Weather Zone 293 Gunnison Basin Forecast Area. * TIMING...From 1 PM this afternoon to 8 PM MDT this evening. * WINDS...West 10 to 20 mph with gusts up to 30 mph. * RELATIVE HUMIDITY...8 to 13 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

Colorado, Wyoming Severe Red Flag Warning | Effective 08/04/2026 23:57

* AFFECTED AREA...Fire Weather Zones 211, 212, 213, 214, 217, and 218. * TIMING...From noon today to 7 PM MDT this evening. * WINDS...West 10 to 20 mph with gusts up to 35 mph. * RELATIVE HUMIDITY...As low as 8 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. Follow all fire restrictions. Avoid activities that can cause sparks and do not park hot vehicles on dry vegetation. One less spark, one less wildfire.

Arizona Severe Extreme Heat Warning | Effective 08/04/2026 23:33

* WHAT...Dangerously hot and humid conditions. Afternoon temperatures 106 to 114 degrees. Major Heat Risk. * WHERE...The Phoenix metropolitan area. * WHEN...Until 8 PM MST Sunday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. Overexposure can cause heat cramps and heat exhaustion to develop and, without intervention, can lead to heat stroke. * ADDITIONAL DETAILS...In Maricopa County, Call 2-1-1 to find a free cooling center, transportation, water and more.

Arizona Severe Extreme Heat Warning | Effective 08/04/2026 23:33

* WHAT...Dangerously hot and humid conditions. Afternoon temperatures 103 to 116 degrees. Major Heat Risk. * WHERE...Portions of Maricopa and Northern Pinal counties * WHEN...Until 8 PM MST Sunday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. Overexposure can cause heat cramps and heat exhaustion to develop and, without intervention, can lead to heat stroke. * ADDITIONAL DETAILS...In Maricopa County, Call 2-1-1 to find a free cooling center, transportation, water and more.

Arizona, California Severe Extreme Heat Warning | Effective 08/04/2026 23:33

* WHAT...Dangerously hot and humid conditions. Afternoon temperatures 104 to 116 degrees. Major Heat Risk. * WHERE...In Arizona, La Paz and Yuma counties. In California, Palo Verde Valley. * WHEN...Until 8 PM MST /8 PM PDT/ Sunday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. Overexposure can cause heat cramps and heat exhaustion to develop and, without intervention, can lead to heat stroke. An Extreme Heat Warning means that a period of very hot temperatures,

California Severe Extreme Heat Warning | Effective 08/04/2026 23:33

* WHAT...Dangerously hot and humid conditions. Afternoon temperatures 104 to 118 degrees. Major Heat Risk. * WHERE...Imperial County, including the Imperial Valley and El Centro. * WHEN...Until 8 PM PDT Sunday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. Overexposure can cause heat cramps and heat exhaustion to develop and, without intervention, can lead to heat stroke. An Extreme Heat Warning means that a period of very hot temperatures,

California Severe Extreme Heat Warning | Effective 08/04/2026 23:33

* WHAT...Dangerously hot and humid conditions. Afternoon temperatures 98 to 114 degrees. Major Heat Risk. * WHERE...Chuckwalla Mountains, Chiriaco Summit, and Joshua Tree National Park. * WHEN...Until 8 PM PDT Sunday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. Overexposure can cause heat cramps and heat exhaustion to develop and, without intervention, can lead to heat stroke. An Extreme Heat Warning means that a period of very hot temperatures,

Colorado Severe Red Flag Warning | Effective 08/04/2026 23:26

...FIRE WEATHER WATCH REMAINS IN EFFECT FROM THURSDAY AFTERNOON THROUGH THURSDAY EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 220... * AFFECTED AREA...Fire Weather Zone 220. * WINDS...West 10 to 20 mph with gusts up to 30 mph. * RELATIVE HUMIDITY...As low as 6 percent. * IMPACTS...Fires will catch and spread quickly. Exercise extreme caution with any outdoor burning. A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of

California, Oregon Severe Red Flag Warning | Effective 08/04/2026 22:05

* IMPACTS...Any fires that develop will likely spread rapidly. * AFFECTED AREA...In Oregon, Fire Weather zones 616, 617, 620, 621, 622, and 623, including the East Evans Creek and Castle Fires, as well as Medford, Grants Pass, Ashland, Cave Junction, Shady Cove, Roseburg, Toketee Falls, Elkton, Tiller and the Siskiyous and southern Oregon Cascades. In California...Fire weather zones 280 and 282. This includes Happy Camp, Etna, Fort Jones, Mt Shasta City, Dunsmuir and McCloud.

California Severe Extreme Heat Warning | Effective 08/04/2026 21:35

* WHAT...Dangerously hot conditions with high temperatures of 110 to 115 expected. * WHERE...Coachella Valley, San Diego County Deserts, and San Gorgonio Pass near Banning. * WHEN...Until 8 PM PDT Saturday. * 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.
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