Guam officials are asking residents to prepare for the possible declaration of Condition of Readiness 4 on Thursday, as crews continue assessing roadways, utilities and storm damage across the island.
The Office of the Governor, Guam Homeland Security and the Office of Civil Defense, and the National Weather Service said they are closely monitoring weather and roadway conditions. Gov. Lourdes Leon Guerrero is scheduled to make a final decision in the early morning hours of Thursday, April 16, on whether to declare COR 4.
Officials said the public should be prepared for the possibility of a COR 4 declaration, which would signal the end of a destructive threat and a return to normal activities.
What a COR 4 declaration would mean
If COR 4 is declared, all Government of Guam agencies would resume normal operations and schedules, and businesses would be advised to return to normal hours.
Public schools, however, will remain closed Thursday, April 16. Private schools will make their own decisions on whether individual campuses are safe for students and staff.
Officials said the declaration of COR 4 depends on a final assessment of island-wide safety, including clear roadways and manageable weather conditions.
Public urged to stay alert during transition
Officials are urging residents to monitor local media, official government social media channels and the GHS/OCD website for the governor’s announcement.
They also advised families to verify that all household members are safe and accounted for, and to use extreme caution if travel becomes necessary because debris, standing water and downed utility lines may still be present. Residents were again warned not to drive through flooded areas and to watch for utility workers, first responders and mayor’s office crews on the road.
Anyone staying in a public shelter is being told to wait for official clearance before trying to return home.
Visitor advisory and flights update
The Guam Visitors Bureau and the A.B. Won Pat International Airport Authority reminded hotel and tourism partners to keep visitors informed.
Officials said residents and visitors must remain indoors and off the roads until the all-clear is officially announced and Guam transitions to COR 4. They also warned people to stay out of the water, saying dangerous sea conditions are expected to last through the end of the week.
All inbound and outbound flights remain suspended while Guam is still under COR 1. Airport officials said flight service is expected to resume within the next 48 to 72 hours.
Dialysis centers reopen, childcare applications postponed
All Fresenius Dialysis Centers have resumed operations. Patients are being told to contact their individual clinics directly to coordinate treatment, regardless of their normal schedule. Officials also said patients needing more help can call the Fresenius Kidney Care 24-hour Patient Emergency Line, while those using FreseniusRx can call for refills or medication questions.
The Department of Youth Affairs also announced it is postponing the 2026 Governor’s Summer Youth Employment Program childcare application period, which had been scheduled for April 17 through 24, because of current weather conditions. New submission dates will be announced once it is safe and possible.
Road hazard reported in Maina
The Guam Police Department reported at 11:55 a.m. that Chalan Palasyo, also known as Snake Road, in Maina is impassable because of a downed tree.
Officials reminded the public to remain indoors until COR 4 and said anyone who absolutely must move around should use extreme caution. They warned residents to be aware of dangerous hazards including downed power lines, damaged trees and roadway debris, and to assume all downed lines are live and dangerous.
Power restoration continues across the island
Guam Power Authority said the island-wide power system avoided a total blackout during the storm, though it was separated into north and south systems.
Dededo Combustion Turbine units 1 and 2 continue supplying northern loads, including Guam Memorial Hospital, the Tumon hotel row underground system, Andersen Air Force Base and Camp Blaz Marine Base, with a current output of 15 megawatts. The Piti 7 combustion turbine unit remained operational during the storm and continues supplying Naval Station Guam and other naval facilities with a 3-megawatt load.
All other GPA power plant units are currently offline and being prepared to return as substations and distribution lines are repaired and as demand increases. Ukudu Power Plant units remained online through the storm until late Tuesday night, while other units were on standby.
GPA said it does not anticipate a generation capacity shortage and plans to restore service first using reserve units, then base load Ukudu units as the system demand increases.
Crews were secured late Tuesday night during the storm’s peak because conditions were too dangerous for aerial and ground work. By Wednesday morning, several crews were back out patrolling lines and clearing hazardous debris, though heavy winds continued to limit repair work.
GPA said each crew will work at least 12 to 16 hours a day, with evening crews also available. Officials said there is sufficient inventory, including poles, wires and transformers, as well as enough crews and equipment to complete repairs.
GPA outlines restoration priorities
Officials said restoration crews have received assignments and safety briefings and are now in the field. Initial priorities include repairing transmission lines, tying the northern and southern systems back together and restoring the island-wide transmission loop.
Once substations are energized, personnel will inspect equipment and determine whether it is ready to send power through distribution feeders that serve homes and businesses. There are 29 substations on Guam, and officials said several are already energized.
GPA’s Power System Control Center will then begin powering up feeders. Circuits without damage will remain energized, while feeders with faults will be flagged for repair.
Officials said GPA is aware of outages affecting customers across the island and is using its Smart Meter Network and SCADA systems to identify outage areas, confirm restorations and locate smaller pockets still without service.
The public is being asked to limit calls to GPA dispatch to critical issues such as downed lines, blown transformers, low voltages and other serious hazards. Residents were again warned to stay away from all downed lines and electrical equipment and to immediately report dangerous conditions to GPA’s 24-hour Trouble Dispatch.
GPA also reminded anyone using a private generator to make sure the main breakers are turned off for the safety of both crews and equipment.
Water outages and conservation concerns remain
Guam Waterworks Authority said crews are performing assessments at water and wastewater treatment plants, sewer lift stations, booster pumps, reservoirs and wells.
Officials said low to no water pressure has been reported in parts of Barrigada, Dededo, Maite, Mangilao, Sinajana, Yigo and Yona.
As of 10:50 a.m., 72 wells remained online, including six on the island-wide power system and 66 on standby power generation. The Ugum Surface Water Treatment Plant was placed back online at 9:38 a.m. after turbidity levels in the Ugum River improved to regulatory treatment limits. The plant is producing water on standby power generation.
Partial treatment is occurring at the Agat-Santa Rita and Northern wastewater treatment plants because those facilities remain without power. GWA said there had been no reported backups or sanitary sewer overflows at that time.
Officials are urging residents to strictly conserve water during recovery, including avoiding washing vehicles, pressure washing or flushing driveways and sidewalks, and limiting water use in kitchens and bathrooms. GWA warned that non-essential water use could place extra stress on the system and increase the risk of backups and sewer overflows if storm impacts continue to affect wastewater operations.
Telecom providers continue restoration work
Docomo said its network remains operational across Guam and the CNMI, though some customers may experience intermittent connectivity or slower speeds because of widespread commercial power outages. The company said all critical facilities are operating on generator power, about 60% of wireless sites are operational and field operations teams are deployed. Officials also said many fixed-network customers have service if power has been restored to their homes or if they have backup power.
GTA said all six of its main locations are operational and running on generators. One Regional Exchange Center in Agat is down because of power issues. Officials said 55% of cell sites are operational and visual inspections of the landline and wireless networks were set to begin at noon, with initial assessments indicating limited damage.
IT&E said assessments of its fiber and mobility network are underway to identify and address damage affecting service. Technical teams have been deployed across the island to support restoration and ensure generators and other temporary power systems are working at cell sites. The company said it is prioritizing restoration for critical hub sites, government operations, healthcare facilities and first responders, while also working to restore service to the general public as quickly as possible.
Crisis lifeline remains available
Officials said the GBHWC Suicide and Crisis Lifeline remains available 24 hours a day, seven days a week. Community members can call or text 988 or chat online at 988lifeline.org.
