overspread

To the east, tropical humidity will reign, but desert air will overspread areas to the west.

“I knew you from the description of poor dear Lucy; but——” She stopped suddenly, and a quick blush overspread her face.

The winds will be fierce through the Central Valley, where air funnels easily between the coastal ranges and the Sierra Nevada, but will also overspread the Bay Area, Central Coast and Southern California.

Discussion: A tropical air mass will overspread the Mid-Atlantic as a warm front lifts north during the morning hours.

I went to him and saw that his eyes were sightless; already a thin film was overspreading them.