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Active official alertUpdated

High Surf Advisory for Guam; Rota

Official alert fields

What you need to know

Applies to
Guam, Rota, Saipan, Tinian
Effective
Ends or expires
Official severity
Minor
Official urgency
Expected
Official certainty
Likely

What is happening

What: Large breaking waves of 10 to 14 feet and dangerous rip currents expected. Impacts: Dangerous swimming and surfing conditions and localized beach erosion. Rip currents can sweep even the best swimmers away from shore into deeper water. Where: North and east facing reefs of Guam and Rota. When: From 2 AM...

What the bulletin says to do

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.

Full official description

Bulletin details

* WHAT...Large breaking waves of 10 to 14 feet and dangerous rip currents expected. * WHERE...North and east facing reefs of Guam and Rota. * WHEN...From 2 AM Friday to 4 PM ChST Saturday. * 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...As TY In-fa moves west-northwest toward the far northern CNMI, seas are expected to rapidly increase due to the large, long-period northeast swell emanating from In-fa. This will produce hazardous surf along north and east facing reefs after midnight tonight. As In-fa progresses, swell will become north, then northwest, resulting in surf building over west facing reefs Friday night. Surf will remain hazardous through Saturday afternoon. These surf conditions will maintain a high risk of dangerous rip currents.

Official geometry where available

Alert boundary

Lifecycle record

Official revisions

2 captured
  1. Alert

    High Surf Advisory issued October 29 at 3:00PM ChST until October 31 at 4:00PM ChST by NWS Tiyan GU

    Official revision
  2. Alert

    High Surf Advisory issued October 29 at 3:00PM ChST until October 31 at 4:00PM ChST by NWS Tiyan GU

    Official revision

Source and limitations

Publisher: Weather Alert Watch. Primary source: NWS Tiyan GU. This page reorganizes official fields and does not add a forecast or expand the affected area.

CAP status
Actual
Message type
Alert
Last collected
Methodology and corrections