Jakarta Weather Update: Relief Now, But Prepare for April Showers

After experiencing severe flooding, greater Jakarta and western Java are currently enjoying a respite with mostly cloudy weather. However, residents should remain vigilant as predictions indicate a potential return of extreme rainfall in April.

Current Weather Patterns: A Temporary Lull

Following recent concerns about continued heavy rainfall after severe flooding, climatology experts offer a more optimistic outlook. Erma Yulihastin, a researcher at BRIN, stated in an interview on Friday, March 14, 2025, that the current weather aligns with predictions from BRIN’s Kamajaya weather model. this model suggested that extreme rain would primarily occur in the frist ten days of March and is expected to return in the first ten days of April.

Yulihastin explained that the factors contributing to heavy rain have largely dissipated. “especially those that could trigger extreme weather, namely Kelvin and Rossby waves,” have moved away from the Greater Jakarta area, which includes Jakarta, Bogor, Depok, Tangerang, and Bekasi. Furthermore, she noted the absence of significant cloud clusters in the Indian Ocean that could impact western Java.

Adding to the positive outlook, Yulihastin stated, “The southern vortex in the Indian Ocean has also moved away and dissipated after becoming Tropical Storm Ivonne.” While localized heavy rain might occur, she assures that “if it rains over the sea, the rain on land won’t be as intense.”

April Forecast: prepare for Potential Extreme Rainfall

While the immediate forecast offers a period of relative calm, the situation is expected to shift from late March into early April.Yulihastin issued an early warning about increased rainfall in the first ten days of April, with a potentially more extreme rise at the end of the month.She predicts, “The rainfall could reach 800-900 mm in Jabodetabek” at that time. She also clarifies that rainfall exceeding 100 mm per day is considered heavy, while anything over 150 mm is considered extreme.

Underlying Weather Dynamics

The anticipated increase in rainfall during April is attributed to strengthening north winds, stemming from a vortex in the Indian Ocean southwest of West Java. This effect is further amplified by the convergence of atmospheric waves, specifically Kelvin and Rossby waves.

Yulihastin emphasized, “These factors are similar to those that caused the repeat of extreme weather conditions at the beginning of last march,” highlighting a concerning pattern. She concludes that the combination of atmospheric waves, strengthened by winds from the north and forming locally in northern Jakarta, will likely trigger extreme weather again, “Especially at the end of April.”

Preparing for Potential Extreme Weather

Given the forecast, residents of Greater Jakarta and western Java should take proactive measures to prepare for potentially extreme weather in late April. Consider these steps:

• Monitor Weather Updates: Stay informed about the latest forecasts and warnings from credible sources.
• clear Drainage Systems: Ensure that gutters, drains, and other water channels are clear of debris to prevent flooding.
• Secure Property: Take steps to protect your property from potential damage caused by heavy rain and strong winds.
• Prepare an Emergency Kit: assemble a kit with essential supplies, including water, food, medication, and a first-aid kit.
• Develop an Evacuation Plan: If you live in a flood-prone area, create an evacuation plan and identify safe locations to go to.

Conclusion

While Greater Jakarta is currently experiencing a welcome break from heavy rainfall, it’s crucial to heed the early warnings about potential extreme weather in April. By staying informed, taking preventive measures, and being prepared, residents can mitigate the risks associated with increased rainfall and potential flooding.Don’t wait until the storm hits – take action now to safeguard your home and family.Share this data with your community to help everyone stay safe during the upcoming weather challenges.

Jakarta Weather: Interview with Climatologist Dr. Anya Sharma on Impending April Rainfall

Archyde News speaks with Dr. Anya Sharma, a leading climatologist, about the upcoming weather patterns in Jakarta and western Java, following recent flooding and predictions of more extreme rainfall in April.

Understanding the Current Weather Lull in Jakarta

Archyde News: Dr. Sharma, thank you for joining us today. Greater Jakarta is currently experiencing a relative calm after severe flooding. Could you explain the atmospheric conditions that are contributing to this more stable weather pattern?

Dr. Anya Sharma: Certainly. The temporary relief we’re seeing is primarily due to the dissipation of several key factors that fueled the recent heavy rainfall. The Kelvin and Rossby waves, which brought significant moisture to the region, have moved on. Additionally,the southern vortex in the Indian Ocean that intensified into Tropical Storm Ivonne has weakened and moved away. These shifts have considerably reduced the potential for extreme weather in the immediate term.

April Rainfall: A Cause for Concern

Archyde News: Predictions point to a potential increase in rainfall, possibly extreme rainfall, in April. What can you tell us about what’s expected and what’s driving this forecast?

Dr. Anya Sharma: Our models indicate a strengthening of north winds due to a vortex forming in the Indian Ocean southwest of West Java. This will likely converge with atmospheric waves,recreating conditions similar to those we experienced earlier this month. We anticipate a significant increase in rainfall,perhaps reaching 800-900 mm in the Greater Jakarta area,notably towards the end of April. Rainfall exceeding 150 mm per day is considered extreme, so this is definitely something to be prepared for.

Preparing Jakarta for Extreme Weather: Practical Steps

Archyde News: What actionable advice can you offer to residents of Jakarta and western Java to prepare for the anticipated extreme weather in April?

Dr.Anya Sharma: Preparedness is key. first, stay informed by monitoring official weather updates from credible sources.This allows you to adapt your plans based on the latest data. Second, ensure your drainage systems are clear of debris to minimize the risk of flooding around your homes and neighborhoods. Secure any loose property that could be damaged by strong winds or heavy rain. And most importantly, assemble an emergency kit with essential supplies and develop an evacuation plan in case you live in a flood-prone area.

The Role of Climate Change in Jakarta’s Weather

Archyde News: Considering these increasingly frequent extreme weather events,what role,if any,do you believe climate change is playing in shaping Jakarta’s weather patterns?

Dr.anya Sharma: While it’s impossible to attribute any single event solely to climate change, the overall trend suggests a clear connection.We’re seeing increased intensity and frequency of extreme weather events globally, and Jakarta is not immune. Climate change can exacerbate existing weather patterns, leading to more intense rainfall, longer periods of drought, and generally more unpredictable weather. Further research is crucial to fully understand the local impacts of global climate change and to develop effective mitigation strategies for vulnerable regions like Jakarta.

Final Thoughts and a Question for Our Readers

Archyde News: Dr.Sharma, thank you for sharing your expertise with us. what is the one thing you wish all Jakarta residents would do to prepare for future extreme weather events?

Dr.Anya Sharma: I would urge everyone to not underestimate the potential impact of extreme weather. Being informed and taking proactive steps to protect yourself,your family,and your community is critical. Don’t wait until the storm hits – prepare now.

archyde News: Thank you, Dr. sharma.Now,we turn to our readers: What steps are YOU taking to prepare for the potential extreme rainfall in Jakarta this April? Share your strategies and concerns in the comments below.