Headline:
Hazardous Seas Warning issued October 18 at 5:53PM ChST until October 19 at 5:00PM ChST by NWS Tiyan GU
Event:
Hazardous Seas Warning
Urgency:
Expected
Effective:
October 18, 2026 - 12:53am
Expires:
October 18, 2026 - 3:00pm
Description:
* WHAT...Very steep and hazardous seas 12 to 16 feet and southeast
winds 20 to 30 kt with occasional gusts to 40 kt.
* WHERE...Guam and Rota Coastal Waters.
* WHEN...Until 5 PM ChST Monday.
* IMPACTS...Very steep and hazardous seas could capsize or cause
damage to vessels.
* ADDITIONAL DETAILS...Typhoon and tropical storm conditions are no
longer expected as Typhoon Champi continues moving away from the
region. However, combined seas will be very steep due to remnant
storm-induced swells and elevated wind waves. As Champi continues
moving away at a relatively quick speed, seas could drop below 15
feet after midnight.
Instruction:
A hazardous seas warning means hazardous sea conditions are
imminent or occurring. Recreational boaters should remain in
port...or take shelter until waves subside. Commercial vessels
should prepare for rough seas and consider remaining in port or
taking shelter in port until hazardous seas subside.
Area Description:
Guam Coastal Waters; Rota Coastal Waters
Forcast Office:
NWS Tiyan GU
Sender:
w-nws.webmaster@noaa.gov