High Surf Advisory issued July 4 at 6:40PM ChST until July 9 at 4:00PM ChST by NWS Tiyan GU
Por NWS04/07/2026 às 08:400 visualizações
* WHAT...For the High Surf Advisory, large breaking waves of 25 to
35 feet in the surf zone. For the Coastal Flood Watch,
significant coastal flooding.
* WHERE...Guam, Rota, Tinian and Saipan.
* WHEN...For the High Surf Advisory, until 4 PM ChST Thursday.
For the Coastal Flood Watch, through Wednesday afternoon.
* IMPACTS...Numerous roads may be closed. Low lying property
including homes, businesses, and some critical infrastructure
will be inundated. Significant shoreline erosion will occur.
Waters will be deadly.
* ADDITIONAL DETAILS...Surf levels are building to hazardous
levels along north and east facing reefs as Super Typhoon Bavi
approaches the Marianas from the east, and will rapidly become
dangerous across north, east, and south facing reefs into Sunday
evening as tropical storm force conditions begin to be felt,
spreading to west facing reefs shortly thereafter. Surf will
potentially build to 35 feet Monday morning as Bavi makes
passage through the islands as a Category 5 Super Typhoon.
Coastal inundation will become likely beginning late Sunday
afternoon, potentially sooner if the system moves faster. During
passage of Bavi, coastal inundation could approach 15 feet
closer to the storm center. Once Bavi exits to the west-
northwest by Tuesday night, coastal inundation and erosion is
likely to increase along west facing shores while easing
elsewhere.
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