Ten structures — including four homes — have been destroyed by a wildfire sweeping through central Oregon, where thousands of residents remained under evacuation orders on Monday, while a blaze in Northern California wine country has so far spared some of the state’s most famous vineyards.

Moisture helped the 1,200 firefighters battling Oregon’s Flat Fire, but it was only 5% contained Monday night.

Two major wildfires in California and Oregon force mass evacuations as firefighters battle blazes amid dangerous heat conditions.