Elevated Guam ยท North America

NWS / NOAA weather: Coastal Flood Warning issued July 5 at 9:02PM ChST until July 8 at 4:00PM ChST by NWS Tiyan GU

* WHAT...For the Coastal Flood Warning, significant coastal
flooding. For the High Surf Warning, dangerously large breaking
waves of 25 to 35 feet in the surf zone.

* WHERE...Guam, Rota, Tinian and Saipan.

* WHEN...For the Coastal Flood Warning, until 4 PM ChST
Wednesday. For the High Surf Warning, until 4 PM ChST Thursday.

* 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...Hazardous surf levels will rapidly build
to dangerous levels along north, east, and south facing reefs
this evening as Super Typhoon Bavi approaches the Marianas from
the east and tropical storm force conditions develop, spreading
to west facing reefs soon after. Surf will potentially build to
35 feet Monday morning near Rota and 30 feet elsewhere as Bavi
makes its passage through the islands likely as a Category 5
Super Typhoon. Coastal inundation will become likely this
evening, During the passage of Bavi, coastal inundation could
approach 12 feet, especially near the storm center due to the
dome effect. Once Bavi exits to the west-northwest by Tuesday,
coastal inundation and erosion is likely to increase along west
facing shores while easing elsewhere.

Source: NWS / NOAA weather.

Source: NWS / NOAA weather

Understanding Global Threats

Browse All Topics & Pages

Complete sitemap with all intelligence resources

View Sitemap →

Related Preparedness Gear

Be prepared for evolving situations

Global Conflict Map

Live snapshot of conflict locations and tension zones worldwide.

Last update on: July 1, 2026

Keep Exploring