13°30'S / 144°50'I / Visina 87 m / 13:33 11.08.2026, Pacific/Guam (UTC+10)
Od: 11.08.2026, 04:00
Do: 11.08.2026, 19:00
* WHAT...Large breaking waves of 7 to 10 feet and dangerous rip currents expected. * WHERE...West and north facing reefs of the Marianas. * WHEN...Until 4 PM ChST Thursday. * IMPACTS...Dangerous swimming and surfing conditions and localized beach erosion. Rip currents can sweep even the best swimmers away from shore into deeper water. * ADDITIONAL DETAILS...A strong monsoon pattern continues to produce hazardous surf and a high risk of rip currents along west and north facing reefs through Thursday afternoon, potentially dropping below hazardous levels tonight along north- facing reefs. The High Surf Advisory and High Rip Current Risk may be extended again as the monsoon pattern and associated west to northwest swells, continue into next week.
Guam,Guam
Rip currents will be life threatening. Inexperienced swimmers
should remain out of the water due to dangerous surf conditions.
Rip currents will be life threatening. If caught in a rip
current, relax and float. Don't swim against the current. If
able, swim in a direction following the shoreline. If unable to
escape, face the shore and call or wave for help.
NWS Tiyan GU
11.08.2026, 04:00
Od: 11.08.2026, 04:00
Do: 11.08.2026, 19:00
* WHAT...Large breaking waves of 7 to 10 feet and dangerous rip currents expected. * WHERE...West and north facing reefs of the Marianas. * WHEN...Until 4 PM ChST Thursday. * IMPACTS...Dangerous swimming and surfing conditions and localized beach erosion. Rip currents can sweep even the best swimmers away from shore into deeper water. * ADDITIONAL DETAILS...A strong monsoon pattern continues to produce hazardous surf and a high risk of rip currents along west and north facing reefs through Thursday afternoon, potentially dropping below hazardous levels tonight along north- facing reefs. The High Surf Advisory and High Rip Current Risk may be extended again as the monsoon pattern and associated west to northwest swells, continue into next week.
Guam,GuamRip currents will be life threatening. Inexperienced swimmers
should remain out of the water due to dangerous surf conditions.
Rip currents will be life threatening. If caught in a rip
current, relax and float. Don't swim against the current. If
able, swim in a direction following the shoreline. If unable to
escape, face the shore and call or wave for help.NWS Tiyan GU11.08.2026, 04:00