(Brookings, OR)  --  Dry, gusty winds are whipping Oregon's largest wildfire into an even bigger disaster.  The Chetco Bar Fire near Brookings has burned up more than 100-thousand acres of land and firefighters fear it could get much worse.  Authorities say the weather is ripe for "extreme fire behavior" and will likely stay that way through the Labor Day weekend.  Firefighters say the low humidity is a real problem when combined with the winds, which can carry burning embers nearly a mile away.  The Oregon State Fire Marshal is keeping an eye on the communities of Winchuck and Pistol River, where the winds are pushing the flames.