Australia's Bureau of Meteorology (BoM) said Tuesday that a "very strong" El Niño event is now in full swing [1].

This climate pattern significantly alters weather across the Pacific, posing immediate risks to agriculture, water security, and public safety in eastern Australia. The intensification of this event often leads to severe environmental volatility, including prolonged droughts and increased wildfire activity.

The BoM said that sea-surface temperatures in the tropical Pacific have risen above the specific threshold required to classify an El Niño as very strong [3]. This warming trend creates a ripple effect in atmospheric pressure, which typically shifts rainfall patterns away from the Australian continent.

Forecasters have tracked the escalating probability of this event over recent months. Some projections indicated a 63% probability of very strong El Niño conditions [4]. Additionally, reports indicated that the National Oceanic and Atmospheric Administration (NOAA) doubled the estimated chances of a very strong event occurring this winter [2].

While the BoM has classified the event as active and very strong, other monitoring entities continue to assess the specific intensity and long-term impacts of the formation [5]. Despite these variations in assessment, the primary concern for eastern Australia remains the potential for a volatile mix of drought and fire, occasionally interrupted by sudden flooding [1].

Local authorities are monitoring the situation as the tropical Pacific continues to exhibit warmer-than-normal temperatures [3]. The BoM continues to track these anomalies to provide updated warnings for regional governments and farming communities.

“A 'very strong' El Niño event is now in full swing”

The transition of El Niño into a 'very strong' phase indicates a high likelihood of rainfall deficits across eastern Australia. This typically stresses water infrastructure and increases the fuel load for bushfires, creating a compounding disaster risk that requires heightened state of readiness for emergency services and agricultural sectors.