* WHAT...Wet snow expected. Total snow accumulations 4 to 10 inches with 12 to 16 inches near Crater Lake. Winds gusting as high as 40 mph over high and exposed terrain. * WHERE...Elevations above 6000 feet in the southern Oregon Cascades north of Mt. McLoughlin during Sunday, then above 5000 feet during Sunday night. This also includes the following passes or notable locations...Diamond Lake, Crater Lake National Park, Willamette Pass, and portions of highways 62, 138, 230, and 58. * WHEN...Until 4 AM PST Monday. * IMPACTS...Roads, and especially bridges and overpasses, may become slick and hazardous, and visibility will be limited at times. Plan on slippery road conditions and potential delays.