NWS / NOAA weather: Coastal Flood Warning issued October 17 at 7:26AM ChST until October 19 at 4:00AM ChST by NWS Tiyan GU
* WHAT...For the Coastal Flood Warning, significant coastal flooding
expected. For the High Surf Warning, dangerously large breaking
waves up to 35 feet for Guam, 20 to 25 feet for Rota, and 15 to 20
feet for Tinian and Saipan.
* WHERE...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 1 to 3 feet for Tinian and Saipan is possible
along with coastal flooding and beach erosion.
* ADDITIONAL DETAILS...Surf is expected to rise rapidly to dangerous
levels tonight. Coastal impacts to the western coast of Guam and
Rota are highly dependent on the final track of Champi; passage
south of Guam would be reduced impacts whereas passage over Guam
would result in larger coastal inundation.
- Severity
- Severe (4/5) · CAP Severe
- This month
- 2614th Weather alert at severity 4+ in the last 30 days