Firefighters are tackling three blazes in central Washington near Yakima and forecasts show conditions to fight them are going to get worse.
The Pipeline Fire and Left Hand Fire are both between Yakima and Ellensburg. The Kusshi Creek Fire is south near the Yakama Reservation.
The Left Hand Fire has forced six homes to evacuate and hundreds more are on notice.
Top fire scientists at the Missoula Fire Sciences Lab in Montana are working to improve fire forecasting, so conditions can be predicted up to a week in advance.
On Friday, most of central Washington shows orange, which means "very high" fire weather potential. But by Saturday, the central region around Yakima turns red to "severe." That's the worst rating for fire weather.