KALISPELL, Mont. -

Plum Creek Timber Co. officials say they will cut worker hours from 40 to 30 per week at plywood plants in Columbia Falls and Evergreen starting Monday.
    
Tom Ray tells the Daily Inter Lake (http://bit.ly/1jHcV5u) the reduction is being caused by a shortage of Douglas fir and larch logs.
    
Ray says harsh weather has been hindering logging operations and causing fewer logs to be delivered to the plants.
    
He says cold weather last week caused three log delivery days to be missed.
    
He also says that logging operations will soon cease to prevent heavy trucks from damaging forest roads as they thaw out.
    
Ray says reducing work hours will prevent a complete shutdown of the plants.