Cyclone Vaianu churns offshore, prompting evacuations, power outages and travel halts in Fiji

The Fiji Meteorological and Hydrological Service kept a "strong wind warning" in force for all Fijian waters as Severe Tropical Cyclone Vaianu intensified offshore on April 6–8, forcing authorities to suspend transport services, open evacuation centres and contend with a major power fault.

Offshore intensification, widespread precautions

Vaianu never made landfall, but it strengthened rapidly over open water and prompted a broad national response. RSMC Nadi analysed Vaianu as a tropical cyclone on April 6 with a central pressure of 976 hPa and classified it as Category 2 roughly 530 km west of Fiji. By early April 7 the system was described locally as a Category 3 severe tropical cyclone about 380 km west–northwest of Nadi.

The U.S. Joint Typhoon Warning Center, using a different wind-averaging standard, estimated 1-minute sustained winds near 185 km/h (115 mph) on April 7, equivalent to a Category 3 hurricane on the Saffir–Simpson scale. Both agencies agreed Vaianu reached major-cyclone strength while remaining offshore.

Heavy rain, rivers near or above warning levels

Officials shifted emphasis to rain and river flooding as the cyclone approached. Heavy-rain warnings and flash-flood alerts were issued nationwide on April 7. Hydrology updates highlighted particular concern in the western division, with flood warnings for the Nadi, Tuva and Nawaka rivers. The Tuva River was reported at 4.37 metres—above its warning level—by about 7:30 p.m. local time on April 7.

Mitieli Cama, acting permanent secretary for the Ministry of Rural and Maritime Development and Disaster Management, urged residents not to wait for conditions to deteriorate before moving to safety, saying: “Let me be clear, dangerous weather conditions are expected across the country.” Authorities warned of floods and possible landslides even without a direct landfall.

Evacuations, transport and service disruptions

Fiji’s National Disaster Risk Management Office opened evacuation centres as water levels rose. Broadcaster MaiTV, citing official figures, reported more than 150 people from 58 households sheltering in five centres early on April 7; that number rose to over 290 evacuees from more than 100 households after two additional centres opened later that evening.

The storm disrupted regional travel. Fiji Airports and national carrier Fiji Airways, including its domestic arm Fiji Link, announced widespread schedule changes on April 7. Multiple international flights were cancelled or delayed and all Fiji Link domestic services were suspended for the day. At least one Fiji Airways flight from Sydney to Nadi diverted to Tonga as a precaution.

Maritime authorities halted passenger and cargo operations in the Western Division and the port of Lautoka was reported closed overnight on April 7. The Maritime Safety Authority instructed vessels to reposition to safer waters, effectively pausing commercial movements while the strong-wind warning was active.

Courts in the Western Division closed as a precaution, many civil servants were released early and schools and some universities suspended classes across multiple divisions.

Power fault and infrastructure concerns

The approaching cyclone exposed vulnerabilities in Fiji’s infrastructure. Energy Fiji Limited reported a fault on a major transmission line on Viti Levu as Vaianu neared, producing a widespread blackout across much of the island. EFL instituted temporary power rationing while crews worked to locate and repair the fault on April 7–8.

The combination of outages and flooding raised concern for critical services that rely on steady electricity—health centres, water-pumping stations and communications towers—heightening the need for rapid restoration to support recovery and safety operations.

International monitoring and later risks for New Zealand

Global monitoring systems registered the event (Global Disaster Alert and Coordination System: VAIANU-26) and published intensity estimates, but in the first 48 hours the response remained largely national with no consolidated international damage assessment or large-scale aid appeal on major humanitarian portals.

Forecasters in Australia and New Zealand were tracking Vaianu’s southeastward trajectory. The Australian Bureau of Meteorology and New Zealand’s MetService warned the storm or its remnant low could bring heavy rain, strong winds and large swells to New Zealand later in the week, though impacts there would more likely be non-tropical in character by the time the system reaches higher latitudes.

Outlook for recovery

For Fiji the immediate priority is managing flood risk as rainbands continue to affect already saturated catchments. Officials warned river levels can remain elevated even after the cyclone’s centre moves away, meaning evacuees may need to shelter longer and transport links could remain disrupted while crews check roads, bridges and power lines.

How quickly normal services resume will depend on the pace of power restoration and when aviation and maritime services can be safely reinstated. Authorities in Fiji will reassess evacuation needs and damage as Vaianu moves into open water, while emergency planners in New Zealand monitor the system for potential impacts on their shores.