The National Weather Service Weather Forecast Office Guam has multiple advisories in effect across the Marianas.

A High Surf Advisory remains in effect for Guam, Rota, Tinian, and Saipan until 6 p.m. Monday. Large breaking waves of 9 to 11 feet are expected along west- and north-facing reefs. Dangerous swimming and surfing conditions are expected, along with localized beach erosion.

Inexperienced swimmers are urged to stay out of the water.
A High Risk of Rip Currents remains in effect through Monday afternoon. Rip currents can quickly pull swimmers away from shore. If caught in a rip current, do not swim against it. Swim parallel to the shoreline, face the shore, and call or wave for help.

A Small Craft Advisory remains in effect until 6 p.m. Monday for the coastal waters of Guam, Rota, Tinian, and Saipan. Northeast winds of 15 to 25 knots with gusts up to 30 knots and seas of 9 to 12 feet are expected.

Conditions will be hazardous for small craft. Inexperienced mariners and operators of smaller vessels should avoid boating during these conditions.