(Underwood, WA) -- The Tunnel 5 Fire is still burning as it pushes westward through the Columbia River Gorge in southwestern Washington. Officials with Southwest Washington Fire Information say the fire began moving west late yesterday afternoon. The blaze has now burned 546 acres and is just five-percent contained as of late last night. At least ten homes have been destroyed along with 50 outbuildings, and about 250 homes remain at risk. The National Weather Service says high temperatures and dry conditions are expected to create additional challenges for firefighters battling the blaze today.