Portland — An elite firefighting team was summoned to take over command Monday of the Dollar Lake fire, considered by fire officials as the priority among four continuing large fires in Oregon.

A Type 1 National Interagency Incident Management Team, one of 17 in the nation, will lead efforts to control the fire that had nearly doubled since Saturday, scorching 4,000 acres in Hood River County.

Fire officials had been anticipating weather that could make conditions worse for crews before they get better. Officials said a “thermal trough” was approaching the area.

“The combination of dry fuels, and dry unstable air can cause the fire to develop a vertical column and generate its own winds,” said Tom Jones, a fire behavior analyst, in a statement.

“Plume-dominated fires are rare but are extremely hazardous because they can produce erratic, down-draft winds that can push fire in many different directions,” he said.