CNN —A lightning-sparked wildfire raging in eastern Oregon has scorched nearly 270,000 acres, making it the largest active wildfire in the United States. The massive blaze is the largest of 31 large wildfires currently burning across Oregon, which has been the hardest hit by fires in recent days. Over the weekend and earlier this week, the Durkee Fire exhibited extreme fire behavior, even creating it’s own weather in the form of pyrocumulus clouds. Wildfire smoke, including from the Durkee Fire in Oregon, was spreading into Boise and beyond. A cold front has moved through the area Thursday morning, bringing high temperatures to the 80s on Thursday, according to the National Weather Service.

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Persons: Indianapolis –, Tina Kotek, ” Kotek, Sarah Sherman, Patrick Nauman, ” Nauman Organizations: CNN, Oregon -, Nationwide, National Interagency Fire Center . Oregon Gov, National Guard, Oregon Department of Emergency Management, Land Management, Oregon State Fire, Weiser, Associated Press, National Weather Service Locations: Oregon, United States, Indianapolis, Oregon - Idaho, Eastern Oregon, Malheur County, Baker, Boise, Colorado , Idaho , Oregon, Washington, Weiser , Idaho