6:35 p.m. Tropical Disturbance Continues to Track Toward Marianas
Uncertainty Remains; Stay Updated for Changes
Good Morning. Hafa Adai & Welcome...to the official GHS/OCD Website.
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Location: 221B Chalan Palasyo Agana Heights, Guam 96910
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The National Weather Service (NWS) Guam Weather Forecast Office continues to monitor Invest Area 90W, a slowly consolidating tropical disturbance, located near 4N and 160E, south-southwest of Pohnpei. 90W is anticipated to move to the west-northwest potentially taking it anywhere from the east of Guam and toward the far northern Marianas, over/near Guam, or to the south of Guam.
Uncertainty Remains on Expected Impact; Stay Updated for Changes
The National Weather Service (NWS) Weather Forecast Office Guam advised the effects of a trade-wind surge continue to affect the Marianas. The following advisories remain in effect:
The U.S. Geological Survey recorded an earthquake with a preliminary magnitude of 7.8 that occurred 119 km WNW of Ternate, Indonesia, with a depth of 10.0 km, at 8:48 a.m. (ChST).
As advised by the Pacific Tsunami Warning Center, there is no tsunami threat to Guam and the CNMI from this earthquake.
This will be the final statement issued by GHS/OCD unless additional information is received.
The Offices of Guam Homeland Security and Civil Defense (GHS/OCD), U.S. Naval Base Guam (NBG), and Andersen Air Force Base (AAFB) will conduct routine testing of the vital communication and advance warning system sirens, respectively, on Tuesday, April 7, 2026, starting at 3:15 p.m.
GHS/OCD will test the All Hazards Alert Warning System (AHAWS) sirens in conjunction with NBG and AAFB monthly routine testing of the “Giant Voice (GV)” sirens.





