Expected

Responsive action SHOULD be taken soon (within next hour)

Arizona Severe Extreme Heat Warning | Effective 08/01/2026 00:18

* 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. * ADDITIONAL DETAILS...In Maricopa County, Call 2-1-1 to find a free cooling center, transportation, water and more. https://www.maricopa.gov/heat

Arizona, California Severe Extreme Heat Warning | Effective 08/01/2026 00:18

* WHAT...Dangerously hot conditions. Afternoon temperatures 112 to 120. Major to Extreme Heat Risk. * WHERE...In Arizona, Parker Valley and Yuma. In California, Imperial Valley, and Palo Verde Valley. * WHEN...Until 8 PM MST /8 PM PDT/ 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

Arizona, California Severe Extreme Heat Warning | Effective 08/01/2026 00:18

* 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...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,

Arizona Severe Extreme Heat Warning | Effective 08/01/2026 00:18

* 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

Arizona Severe Extreme Heat Warning | Effective 08/01/2026 00:18

* 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

Montana, Wyoming Severe Extreme Heat Warning | Effective 08/01/2026 00:25

* WHAT...Dangerously hot conditions with high temperatures of 100 to 108 expected. * WHERE...Portions of central, south central, and southeast Montana and north central Wyoming. * WHEN...From noon today to midnight MDT tonight. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. * ADDITIONAL DETAILS...Low temperatures are expected to be in the 70s for some locations east of Billings tonight bringing limited overnight relief. Sunday will be a little cooler but still hot with

Idaho Severe Red Flag Warning | Effective 08/01/2026 00:06

...GUSTY WINDS AND LOW HUMIDITY EXPECTED THIS WEEKEND... .A building ridge to the south combined with a trough moving across western Canada will tighten the pressure gradient over the area through the weekend creating breezy to windy conditions for the weekend. This combined with warming temperatures and low humidity will lead to high fire danger across much of eastern Idaho. * AFFECTED AREA...Fire Weather Zone 410 Upper Snake River Valley/Idaho Falls BLM, Fire Weather Zone 422 Sawtooth

Washington Severe Red Flag Warning | Effective 07/31/2026 23:53

A strong cold front will sweep across the Inland Northwest Saturday. Very warm dry conditions and gusty winds will contribute to rapid fire spread for any new or ongoing fires. * Affected Area: Methow Valley (Zone 704) and Foothills of Central Washington Cascades (Zone 705). * Winds: West 15 to 25 mph with gusts up to 50 mph. * Relative Humidities: 20 to 27 percent. * Impacts: Rapid fire spread is expected with any new or ongoing fires. A Red Flag Warning means that critical fire weather conditions

Washington Severe Red Flag Warning | Effective 07/31/2026 23:53

A strong cold front will sweep across the Inland Northwest Saturday. Very warm dry conditions and gusty winds will contribute to rapid fire spread for any new or ongoing fires. ...PARTICULARLY DANGEROUS SITUATION (PDS) RED FLAG IN EFFECT 2 PM UNTIL 8 PM SATURDAY FOR THE FOLLOWING AREAS: OKANOGAN VALLEY (ZONE 703) - COLVILLE RESERVATION (ZONE 702) - WATERVILLE PLATEAU (ZONE 706) - WESTERN COLUMBIA BASIN (ZONE 707) - EASTERN COLUMBIA BASIN - PALOUSE - SPOKANE AREA (ZONE 708) AND LOWER PALOUSE -

Idaho, Washington Severe Red Flag Warning | Effective 07/31/2026 23:53

A strong cold front will sweep across the Inland Northwest Saturday. Very warm dry conditions and gusty winds will contribute to rapid fire spread for any new or ongoing fires. * Affected Area: Northern and Central Idaho Panhandle (Zone 101), Okanogan Highlands and Kettle Mountains (Zone 699), Selkirk Mountains of Northeast Washington (Zone 700) and Foothills of Northeast Washington (Zone 701). * Winds: Southwest 10 to 20 mph with gusts up to 40 mph. * Relative Humidities: 15 to 27 percent.
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