Winds have begun shifting to the east, which drove the Eaton fire toward Arcadia and Monrovia early Wednesday morning. Smoke will more likely begin to blow into the eastern San Gabriel Valley, not as much to the south of the fire, Lyou explained. “Arcadia, Duarte and Azusa may see elevated levels (of bad air) from that fire,” he said.

Start the day smarter. Get all the news you need in your inbox each morning. However, "since the wind speeds are so high now, the slow decrease will not bring the winds down to below warning levels until early evening,