Guam, Northern Mariana Islands Coastal Flood Warning | Effective 04/13/2026 11:10
Public safety alert, emergency alert, and weather alert<br />
Description:<br />
* WHAT...For the High Surf Warning, dangerously large breaking<br />
waves of 13 to 18 feet for Guam and 15 to 20 ft for Rota and<br />
20 to 30 ft at Tinian and Saipan. For the Coastal Flood Warning,<br />
significant coastal flooding 1 to 3 ft for Guam, and 3 to 5 ft<br />
for Rota and 5 to 8 feet, potentially reaching up to 10 to<br />
15 feet, for Tinian and Saipan.
* WHERE...North, east and south facing reefs of the Marianas. For<br />