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.

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

Wildfires in California wine country and Central Oregon grew overnight, prompting hundreds of evacuations as firefighters worked Sunday to try to contain the blazes amid dry, hot weather.