A large north swell generated by strong winds associated with a winter storm east of Japan will maintain hazardous surf across the Mariana Islands through tomorrow afternoon, Tuesday, according to the CNMI Homeland Security and Emergency Management, citing data from the National Weather Service in Tiyan, Guam.
A high surf advisory is now in effect until 6pm tomorrow, Feb. 24. Hazardous surf of 9 to 12 feet on north facing reefs will prevail through Monday afternoon then gradually drop to between 8 and 10 feet by Tuesday morning.
Surf will remain hazardous through Tuesday morning and then expected to fall below hazardous levels by Tuesday evening. Hazardous surf will produce life-threatening rip currents along north facing reefs.
A small craft advisory remains in effect until 6pm Tuesday. Northeast winds will be between 20 and 25 knots through Monday, then 15 to 20 knots with frequent gust to 25 knots through Tuesday afternoon.
The combination of a large north swell and wind waves will produce seas of 10 to 11 feet through Monday, then 8 to 10 feet through Tuesday afternoon.
The public, especially those operating smaller vessels, should avoid boating in these conditions. If travel by boat is necessary, exercise caution especially near reef lines and when entering or leaving harbors and inlets. Do not venture near exposed reefs and beaches, especially those along north facing reefs, as rip currents will be life threatening. (HSEM)