The National Weather Service in Medford has issued a High Surf Advisory…which is in effect from 11 PM Thursday, Jan. 18, evening to 4 AM PST Saturday. * Waves and Surf…Breaker heights 30 to 35 ft will diminish to 23 to 25 feet Friday morning, then to less than 20 feet by Saturday morning. * Impacts…Waves will run up much higher on the beaches than normal. These waves will be powerful and can sweep people off jetties and other exposed rocks. They can also easily move large logs and other beach debris. Bar crossings and the surf zone will be especially dangerous due to strong currents and breaking waves. * View the hazard area in detail at https://www.wrh.noaa.gov/mfr/HAZARD Precautionary/preparedness actions… A High Surf Warning indicates that dangerous, battering waves will pound the shoreline. This will result in life-threatening conditions. Stay off jetties and piers since they can be quickly inundated by the heavy surf. Or…better yet…just stay away. A High Surf Advisory means that high surf will affect beaches in the advisory area, producing rip currents and localized beach erosion.