MADISON, Wis. -- Conservation wardens and boat patrol officers plan to step up enforcement of drunken boating this weekend in Wisconsin.

Officials with the state Department of Natural Resources said it will participate in a nationally-coordinated effort called "Operation Dry Water" Friday through Sunday.

DNR conservation wardens and municipal patrol officers will look for boat operators whose blood-alcohol content exceeds the state limit of 0.08 percent. Penalties could include fines, jail and boat impoundment.

Todd Schaller, of the DNR, said alcohol not only impairs judgment and reaction time, it can also increase fatigue and susceptibility to the effects of cold water.