Guam - At 6 tonight a Small Craft Advisory and High Surf Advisory will go into effect until Wednesday. According to the National Weather Service, seas of around 10 feet are expected tonight and will remain that way until Wednesday morning. A Small Craft Advisory means that seas 10 feet or greater are expected to produce conditions hazardous to small craft.
Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in these conditions. If navigation is unavoidable, exercise caution, especially when entering or leaving harbors and inlets and near reef lines. Wear flotation gear.
Meanwhile, the NWS warns that along north facing reefs expect surf of 3-5 feet today increasing to 7-9 feet by tonight. The NWS warns the surf will become hazardous this evening and remain that way through Wednesday morning. You're advised to avoid venturing near exposed reefs and beaches, especially those along north facing reefs as rip currents are life threatening.