A fast-growing wildfire east of The Dalles that forced evacuations Tuesday night continued to swell as it burned overnight.

The Substation Fire jumped the Deschutes River near Sayers Road Tuesday evening, entering Sherman County by 10:30 p.m. By 6 a.m. Wednesday morning, the fire was burning more than 29,000 acres.

Gov. Kate Brown invoked the Emergency Conflagration Act, which allows the state fire marshal to dispatch equipment and firefighters from around the state. Officials said Wednesday that they will provide air support to firefighters.

“To ensure the safety of local residents, and given the dry and windy conditions on the ground, I am invoking an emergency declaration to make additional state resources available to firefighters and first responders,” Brown said in a statement.

The blaze forced immediate evacuations of an estimated 75 households in Wasco County. Those evacuations remained in place Wednesday morning.

The U.S. Forest Service confirmed at least one home burned, including several surrounding buildings on the property.

Level 3 or “go now” evacuations were ordered for 8 Mile Road at Emerson Loop Road to Emerson Loop Road and Company Hollow Road. The evacuation area also includes all of Wrentham Market, Mason, 15 Mile, McCoy, Moody, Fulton, Kloan, Freebridge and Kelly Cutoff roads and all points in between.

In Sherman County, Level 1 or “get ready” evacuations were issued for Grass Valley, Moro and the surrounding area.

High winds near the Wasco County auction yard carried the blaze as it ignited nearby grasslands and wheat fields. It started just south of the Celilo Converter Station on Highway 197 before it headed east and jumped the Deschutes River.

A second fire burning near the fairgrounds in Tygh Valley was put out early Tuesday evening.

Red Cross opened a shelter at The Dalles Middle School starting at 8:30 p.m. for people displaced by the fire.

Other shelters have opened their doors to house animals. Home at Last Humane Society in The Dalles will house displaced dogs free of charge and Fort Dalles Riders Club can accommodate large livestock.