Tropical Disturbance to Pass South of Guam; Showery Weekend Expected


Tropical Disturbance to Pass South of Guam; Showery Weekend Expected

The National Weather Service (NWS) Guam Weather Forecast Office continues to monitor a weak tropical disturbance south of Guam, near 10 degrees north latitude and 145 degrees east longitude. This broad disturbance is generating showers and thunderstorms across Chuuk and Pohnpei. Showers are expected to spread to the Marianas this weekend. The disturbance is forecast to move slowly west today through Saturday.

Another disturbance is expected near Guam by Sunday, posing no direct threat other than rainy weather. For Guam, relatively drier weather and gentle trade winds will continue through this afternoon. Showers are expected to increase tonight as a surface trough with the disturbance approaches. Bouts of scattered showers and isolated thunderstorms at times are expected through the weekend. The wettest period is expected to be Saturday night into early Sunday. Brief but gusty winds from an east to southerly direction are possible late Saturday into early Sunday morning.

Although no major impacts are expected for the Marianas from the activity in the region, the community is advised to stay up to date with the latest information and prepare for a rainy weekend. Those living in flood-prone areas should take action; clear drainage areas and unblock clogged storm drains in your area to minimize flooding.

The Offices of Guam Homeland Security and Civil Defense (GHS/OCD), in coordination with NWS, will continue to monitor all systems in the region and provide updates. 

Visit the following links for the latest advisory information:

· NWS Website:

· NWS Facebook:

· GHS/OCD Website:

· GHS/OCD Facebook:


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


Join the GHS/OCD Email List


Back to top

June 2018 is Typhoon Preparedness Month