Guam, Northern Mariana Islands Moderate High Surf Warning | Effective 07/07/2026 10:53

* WHAT...Dangerously large breaking waves up to 16 feet. Minor coastal flooding expected. Life-threatening rip currents. * WHERE...Along south, west and north facing shores of the Marianas. * WHEN...For the High Surf Warning, until 4 PM ChST Thursday. For the Coastal Flood Advisory, until 4 PM ChST Wednesday. For the High Rip Current Risk, through Friday afternoon. * IMPACTS...Flooding of lots, parks, and roads with only isolated road closures expected. Breaking waves can sweep people off jetties and docks, and into dangerous seas. Life-threatening swimming conditions and significant beach erosion can be expected. * ADDITIONAL DETAILS...Typhoon Bavi (09W) and the trailing monsoon surge will keep producing significant swells that will continue to pummel the Marianas. Dangerous surf heights of up to 16 ft and coastal inundation of 1 to 2 ft can be expected now through late this afternoon, especially along west-facing shores. As Bavi continues to pull away and the leading monsoon surge weakens, swells and associated surf will gradually diminish, potentially dropping below dangerous levels by Thursday. Even so, surf will remain elevated enough to continue to produce high risk of rip currents along all reefs the next few days.