Deadly wildfires raging across Oregon are keeping half a million people under evacuation alert even as weary firefighters take advantage of improved weather to go on the offensive.
The fires have destroyed thousands of homes in days, making Oregon the latest epicentre in a larger summer outbreak of fires sweeping the western United States, collectively scorching a landscape the size of New Jersey and killing at least 25 people.
At least five people died in Oregon this week.
Governor Kate Brown has warned the death toll could grow far higher and said on Friday dozens of people had been reported missing in three counties.
Oregon Office of Emergency Management chief Andrew Phelps said disaster teams searching the scorched ruins of a half-dozen small towns laid to waste were bracing to encounter possible “mass fatality incidents”.
The Pacific Northwest as a whole has borne the brunt of an incendiary onslaught that began around Labor Day, darkening the sky with smoke and ash that has beset northern California, Oregon and Washington.
The firestorms, some of the largest on record in California and Oregon, were driven by high winds that howled across the region for days in the midst of record-breaking heat
Scientists say global warming has also contributed to extremes in wet and dry seasons, causing vegetation to flourish then dry out, leaving more abundant fuel for wildfires.
“This is a climate damn emergency. This is real and it’s happening. This is the perfect storm,” California Governor Gavin Newsom told reporters from a charred mountainside near Oroville, California.
More than 3900 homes and other structures have been incinerated in California alone over the past three weeks.
In southern Oregon, an apocalyptic scene of charred residential subdivisions and trailer parks stretched along Highway 99 south of Medford through the neighbouring towns of Phoenix and Talent.
Molalla, a community about 40 km south of Portland, was an ash-covered ghost town after its more than 9000 residents were told to evacuate, with only 30 refusing to leave, the city’s fire department said.
The logging town was on the front line of a vast evacuation zone stretching north to within 5 km of downtown Portland.
Governor Brown said more than 500,000 people were under one of three evacuation alert levels, advising them to pack and be vigilant, to be ready to flee at a moment’s notice, or to leave immediately.
About 40,000 of those had already been ordered to leave.
In neighbouring Washington state, online video from the Tacoma area showed fires in a residential area setting homes ablaze and locals scurrying to warn neighbours.
After four days of treacherously hot, windy weather, a glimmer of hope arrived in the form of calmer winds blowing in from the ocean, bringing cooler, moister conditions that helped firefighters make headway against blazes that have burned largely unchecked.
“The weather is going to be favourable for us,” said Doug Grafe, of the Oregon Department of Forestry, adding the break in the weather was forecast to continue into next week.
The overall death toll from the Western fires that began in August jumped to 25 after seven people were reported killed in mountains north of Sacramento, California, and Oregon’s fifth fatality was reported outside of Salem.