High Surf Advisory issued January 17 at 3:21AM ChST until January 18 at 4:00AM ChST by NWS Tiyan GU

* WHAT…For the High Surf Advisory, large breaking waves of 2 to
8 feet in the surf zone. For the High Rip Current Risk, dangerous
rip currents.

* WHERE…For the High Surf Advisory, along north facing reefs of
the Marianas. For the High Risk of Rip Currents, along north and
east facing reefs of the Marianas.

* WHEN…For the High Surf Advisory, until 4 AM ChST Saturday.
For the High Rip Current Risk, through late tonight.

* IMPACTS…Dangerous swimming and surfing conditions and
localized beach erosion. Rip currents can sweep even the best
swimmers away from shore into deeper water.