Change in winds fuel fires and trigger more evacuations.
Lightning strikes sparked dozens of fires overnight Saturday in central Washington.
The largest, the No. 1 Canyon fire near Wenatchee, covers about 500 acres and is burning toward the west side of the city.
At one point Sunday afternoon officials said about 180 homes were evacuated.
Many were initially allowed to return home Sunday night, but then the fire took a bad turn and more evacuations were ordered.
As of Sunday night, no homes had been lost, but one shed had caught fire.
Some 155 fire personnel from area agencies are fighting the fire and at least 20 law enforcement personnel are manning roadblocks and contacting residents with evacuation notices.
The US Forest Service and the Department of Natural Resources are also assisting with personnel and a helicopter from the Forest Service is also helping with firefighting efforts.