Headline:
High Surf Warning issued October 18 at 12:00PM ChST until October 19 at 4:00AM ChST by NWS Tiyan GU
Event:
High Surf Warning
Urgency:
Expected
Effective:
October 17, 2026 - 7:00pm
Expires:
October 18, 2026 - 9:00am
Description:
* WHAT...For the Coastal Flood Warning, significant coastal flooding.
For the High Surf Warning, dangerously large breaking waves of 18
to 24 feet in the surf zone.
* WHERE...Guam and Rota.
* WHEN...Until 4 AM ChST Monday.
* IMPACTS...Low lying property including homes, businesses, and some
critical infrastructure may still be inundated. Some shoreline
erosion will occur. Breaking waves can sweep people off jetties and
docks, and into dangerous seas. Life-threatening swimming
conditions and significant beach erosion can be expected.
* ADDITIONAL DETAILS...South to southeast swells and elevated wind
waves induced by Super Typhoon Champi to the west-southwest will
continue life-threatening surf and significant coastal flooding at
least through early Monday morning.
Instruction:
Everyone should remain out of the water due to life-threatening
surf conditions. Stay off of jetties, piers, and other waterside
infrastructure.
Area Description:
Guam; Rota
Forcast Office:
NWS Tiyan GU
Sender:
w-nws.webmaster@noaa.gov