Good Evening.
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Contact Us
Tel: 671-475-9600
Fax: 671-477-3727
Email: info@ghs.guam.gov
Location: 221B Chalan Palasyo Agana Heights, Guam 96910
Welcome to the official GHS/OCD website!
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Agana Heights, Guam – The DisasterLAN (DLAN) emergency management system has been restored as of March 28, 2025 and is now accessible by emergency managers. The loss of service from March 17 - March 28, 2025 had no impact to operations.
DLAN is a secure, web-based, mobile friendly emergency management system that provides tools for shared situational awareness, workflow-based information management, and real-time communication to help prepare for, respond to, and report on issues.
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 1, 2025, 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.
The National Weather Service (NWS) Guam Weather Forecast Office has the following advisories in effect:
A high surf advisory will be in effect for Guam, Rota, Tinian, and Saipan from 6 a.m. Wednesday to 6 a.m. Friday. Large breaking waves of 7 to 10 feet are expected. Dangerous swimming and surfing conditions and localized beach erosion are expected. Inexperienced swimmers should remain out of the water due to dangerous surf conditions.