NWS / NOAA weather: Coastal Flood Warning issued October 18 at 7:55AM ChST until October 19 at 4:00AM ChST by NWS Tiyan GU
* WHAT...For the Coastal Flood Warning, significant coastal
flooding expected for south and east facing shorelines. For the
High Surf Warning, dangerously large breaking waves up to 30 feet
for Guam, 20 to 25 feet for Rota, and 15 to 20 feet for Tinian and
Saipan.
* WHERE...South and east facing reefs of Guam, Rota, Tinian and
Saipan.
* WHEN...From 5 PM this afternoon to 4 AM ChST Monday.
* IMPACTS...Numerous roads may be closed. Low-lying property
including homes, businesses, and some critical infrastructure will
be inundated. Shoreline erosion will occur. Breaking waves can
sweep people off their feet, and into dangerous seas. Life-
threatening swimming conditions and significant beach erosion can
be expected. Coastal inundation of 5 to 7 feet for Guam, 2 to 4
feet for Rota and 2 to 4 feet for Tinian and Saipan is possible
along with coastal flooding and beach erosion.
* ADDITIONAL DETAILS...Dangerous surf from the southeast will
continue the next day or so.
- Severity
- Severe (4/5) · CAP Severe
- This month
- 2635th Weather alert at severity 4+ in the last 30 days