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Public Safety Alerts

Guam, Northern Mariana Islands Moderate High Surf Warning | Effective 10/16/2026 14:26

High Surf Warning issued October 17 at 7:26AM ChST until October 19 at 4:00AM ChST by NWS Tiyan GU

Event: High Surf Warning

Desc: * 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. *...

Areas: Rota Municipality MP, Tinian Municipality MP, Saipan Municipality MP

Severity: Moderate

Urgency: Expected

Effective: Friday, October 16, 2026 - 14:26

Expires: Saturday, October 17, 2026 - 06:00

Sender: w-nws.webmaster@noaa.gov

Guam, Northern Mariana Islands Moderate High Surf Warning | Effective 10/16/2026 05:48

High Surf Warning issued October 16 at 10:48PM ChST until October 19 at 4:00AM ChST by NWS Tiyan GU

Event: High Surf Warning

Desc: * WHAT...For the High Surf Warning, large, hazardous breaking waves of 7 to 9 feet Saturday afternoon will become dangerous, building to as high as 35 feet for Guam, 25 feet for Rota and 20 feet for Tinian and Saipan. For the Coastal Flood Watch, significant coastal flooding possible. * WHERE...For the High Surf Warning,...

Areas: Rota Municipality MP, Tinian Municipality MP, Saipan Municipality MP

Severity: Moderate

Urgency: Expected

Effective: Friday, October 16, 2026 - 05:48

Expires: Friday, October 16, 2026 - 17:30

Sender: w-nws.webmaster@noaa.gov

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Public Safety Alerts