High Surf Advisory for Yap
Official alert fields
What you need to know
- Applies to
- Yap
- Effective
- Ends or expires
- Official severity
- Minor
- Official urgency
- Expected
- Official certainty
- Likely
What is happening
What: Large breaking waves of 7 to 10 feet. Impacts: Dangerous swimming and surfing conditions and localized beach erosion. Where: North facing reefs of Yap. When: Until 5 PM ChST Tuesday.
What the bulletin says to do
Inexperienced swimmers should remain out of the water due to dangerous surf conditions.
Full official description
Bulletin details
* WHAT...Large breaking waves of 7 to 10 feet. * WHERE...North facing reefs of Yap. * WHEN...Until 5 PM ChST Tuesday. * IMPACTS...Dangerous swimming and surfing conditions and localized beach erosion. * ADDITIONAL DETAILS...Elevated long-period north swell, emanating from distant Typhoon In-fa, is moving through the region, generating hazardous surf along north facing reefs of Yap. To the southwest of Yap, overnight buoy data from Babeldaob, Palau, showed a sharp increase in 12 to 14 second swell from the northeast, with combined seas at least one foot above model guidance. This was an indicator that the long-period swell may be arriving slightly sooner than indicated by guidance, sufficient to produce hazardous surf of 9 feet, potentially reaching 10 feet tonight, along north facing reefs of Yap. For Yap, the swell is expected to be north-northeast, and about 1 to 2 feet higher than that expected for Palau, where north-facing surf looks to remain just below 9 feet.
Official geometry where available
Alert boundary
Lifecycle record
Official revisions
- Alert
High Surf Advisory issued November 2 at 5:10AM ChST until November 3 at 5:00PM 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
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