Circulation Passed Near Chuuk Overnight; No Threat to the Marianas

Circulation Passed Near Chuuk Overnight; No Threat to the Marianas

The National Weather Service (NWS), Guam Weather Forecast Office continue to monitor a tropical disturbance (Invest 95W) that passed near Chuuk overnight.


The system remains disorganized as it continues to move west and development of the system is not expected at this time. NWS advised models indicate no development in the coming days, but it will maintain a surface trough that will eventually head to Yap and Palau.


For the Marianas, the system is expected to keep isolated showers in the forecast for the next couple of days. Substantial rains are not expected as the unorganized system and surface trough is expected to stay well south of the Marianas. The more noticeable effect of the disturbance will be increased trade winds on Friday before drier weather returns for the weekend.


Although there are no watches or warnings in effect for the Marianas, the community is advised to watch for any advisories issued in the future as seas and winds are expected to become hazardous for small craft on Friday.


The Offices of Guam Homeland Security and Civil Defense (GHS/OCD), with guidance from NWS, will continue to monitor all systems in the area and provide information as it becomes available.


Visit the following links for the latest information:

For more information, contact GHS/OCD Public Information Officer Jenna G. Blas at (671) 489-2540 or via email at



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June 2018 is Typhoon Preparedness Month