The Big Hollow Fire in the Gifford Pinchot National Forest about 15 miles northwest of Carson remains at 15% containment and 24,788 acres in size.  Officials say anticipated rain will moderate fire behavior.  Cooler temperatures and wet conditions will allow for further cleanup and removal of debris along the containment lines.  Increased winds could bring down fire weakened trees.  The 42 cabins at Government Mineral Springs are being watched and monitored for any fire threat.  The Washington Department of Natural Resources has lifted the closure order for Merrill Lake Conservation Area, but the Siouxon Block remains closed.