High Surf Warning issued April 12 at 8:54PM ChST until April 16 at 6:00PM ChST by NWS Tiyan GU

Details

* WHAT...For the High Surf Warning, dangerously large breaking
waves of 12 to 16 feet in the surf zone. For the Coastal Flood
Watch, significant coastal flooding of 2 feet or greater
possible.

* WHERE...North, east and south facing reefs of the Marianas. For
the Coastal Flood Watch, north, east, and south facing
shorelines.

* WHEN...For the High Surf Warning, until 6 PM ChST Thursday. For
the Coastal Flood Watch, from 6 AM ChST Monday through Wednesday
afternoon.

* IMPACTS...Numerous roads may be closed. Low lying property
including homes, businesses, and some critical infrastructure
may be inundated. Some shoreline erosion may occur. 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...As TY Sinlaku moves towards the Marianas
swell and surf are expected to rapidly build. This will generate
dangerous surf and increase the risk for coastal inundation,
especially as TY Sinlaku begins to move through the Marianas on
Tuesday.