More east Multnomah County communities were ordered to evacuate immediately late Monday as the Eagle Creek Fire continued to spread.

Officials also closed Interstate 84 between Troutdale and Hood River.

The Multnomah County Sheriff's Office said it had issued Level 3 evacuation orders in the communities of Dodson, Warrendale, Larch Mountain and East Corbett (east of Larch Mountain Road), meaning residents should leave immediately.

It also issued Level 2 evacuation orders for Latourell and Bridal Veil, where residents were to be ready to leave at a moment's notice.

All other Corbett residents are under a Level 1 evacuation order, meaning they should pack their belongings in preparation for an evacuation. The Corbett School District will be closed Tuesday.

Earlier Level 1 evacuation notices in Cascade Locks, meanwhile, are now Level 2, Hood River County officials said.

The evacuations were quickly expanded Monday night as the fire grew. Multnomah County Sheriff's Office spokesman Lt. Chad Gaidos said the sudden orders were a testament to the fast-moving nature of the fire.

The National Weather Service said late Monday the fire had moved four miles west in 3 hours, and that the fire's perimeter was now just two miles from Multnomah Falls.

Conditions will get worse before getting better. Expect rapid westward movement of the fire as strong east winds continue through the night. https://t.co/9DJoKTeaVS — NWS Portland (@NWSPortland) September 5, 2017

Deputies were going door-to-door alerting residents of the evacuation orders Monday night.

Gaidos said there was also concern that embers carried by the wind could ignite grassfires outside of the fire's perimeter.

"We're asking people, if you find embers around you and you're concerned about the well-being of your property, to evacuate immediately," he said.

The county has opened a shelter for evacuees at the Yoshida Event Center at Mt. Hood Community College, 26000 SE Stark St. in Gresham. Pets are welcome at the shelter.

It's also set up a call center for people with livestock to call for assistance moving them out of the fire area. Those residents can call 503-823-2323.

The Oregon Department of Transportation, meanwhile, has closed I-84 from Troutdale to Hood River. The agency is diverting truck traffic to U.S. 26 as an alternate route. Other vehicles can cross the Columbia River into Washington and take State Route 14 between Hood River and Portland.

Gaidos said evacuees would be allowed to use the interstate to evacuate.

The Bridge of the Gods, which crosses the Columbia River at Cascade Locks, has been closed to southbound traffic on the Washington state side.

The fire has grown to 4,800 acres since it started Saturday, and firefighters have made no progress containing it. Police, meanwhile, believe the fire was caused by illegal fireworks and have identified a teenage suspect but have made no arrest.

Easterly winds sent smoke and ash west into Portland and other metro area communities.

-- Elliot Njus and Samantha Matsumoto