Initial assessments show that the La Nina phenomenon may be entering its final stage.
The Australian Bureau of Meteorology (BoM) said that as humidity gradually decreases, hot and dry weather may appear.
In addition, some weather forecasters warn of the possibility of El Nino returning.
The Australian Meteorological Agency noted that La Nina is still active in the tropical Pacific region, but initial signs indicate that this weather pattern may be gradually weakening.
Meanwhile, the US-based Climate Impact Company forecasting unit announced that the ocean La Nina phenomenon has ended this week, signaling a transition to neutral status in the Pacific.
In Australia, the Australian Meteorological Agency has not yet issued an official conclusion. A spokesman for the Australian Meteorological Agency said: "La Nina continues in the tropical Pacific. However, the recent warming of the ocean surface may be an early sign that La Nina is declining.
La Nina often causes heavy rain and thunderstorms in eastern and northern Australia, while the south and west tend to be drier.
Although the tropical Pacific still shows signs of La Nina, atmospheric indicators are currently quite weak, suggesting that this phenomenon may be approaching its final stage.
According to the Australian Meteorological Agency, trade winds, which have been maintained at an average or slightly stronger level in recent weeks, are likely to weaken in the next few weeks, contributing to the disappearance of La Nina.
A spokesman for the Australian Meteorological Agency emphasized that forecast models see that tropical Pacific sea surface temperatures are likely to return to neutral ENSO at the end of summer.
Some other forecast models show the possibility of El Nino returning. Meteorologist Rob Sharpe of Sky News Australia said that as winter and spring approach, "strong signs have emerged that El Nino will form".
In the past 12 months, a relatively warm water mass has gradually spread at a depth of about 100m below the surface of the central Pacific region. In the past month, this warm water mass has spread further east and approached the surface, just like what usually happens before an El Nino event," he said.
Meteorologist Rob Sharpe made this assessment based on the analysis of climate models and ocean trends.
Meanwhile, the Australian Meteorological Agency only announced official forecasts a few months in advance because the reliability of long-term forecasts is still limited.
According to the long-term forecast of the Australian Meteorological Agency, the transition from La Nina to a neutral ENSO state may leave behind negative impacts in some areas.
Accordingly, even if the overall weather pattern weakens, some areas in northern and eastern Australia may continue to experience rain and thunderstorms characterized by La Nina for a while longer.
