1 day ago
17
March 15, 2025 | 02:08 pm
TEMPO.CO, Jakarta - Over the past few days, Greater Jakarta or Jabodetabek and western Java have experienced mostly cloudy weather. Following the severe flooding last week, there were initial concerns that heavy rainfall would continue.
According to Erma Yulihastin, a researcher at the Climate and Atmosphere Research Center, National Research and Innovation Agency (BRIN), the current weather aligns with predictions from BRIN's Kamajaya weather model. This model indicated that extreme rain would likely occur only in the first ten days of March and would return in the first ten days of April.
Regarding the present situation, she explained that all factors that could cause heavy rain have moved away. "Especially those that could trigger extreme weather, namely Kelvin and Rossby waves," she explained in an interview on Friday afternoon, March 14, 2025.
This climatology research expert detailed that the Kelvin-Rossby interaction factors have now left the Greater Jakarta areas, which consist of Jakarta, Bogor, Depok, Tangerang, and Bekasi. Additionally, there are no signs of large cloud clusters in the Indian Ocean that could move towards western Java.
"The southern vortex in the Indian Ocean has also moved away and dissipated after becoming Tropical Storm Ivonne," she added.
Even if heavy rain occurs in Greater Jakarta and western Java in the coming days, Erma noted that it will be localized. Furthermore, more rain clouds are forming over the ocean. "So, if it rains over the sea, the rain on land won't be as intense."
The situation is expected to change from late March to early April. Erma issued an early warning about increased rainfall in the first ten days of April, with a more extreme rise at the end of April or the third ten-day period. At that time, she predicted, "The rainfall could reach 800-900 mm in Jabodetabek."
Rainfall exceeding 100 mm per day is considered heavy rain, and over 150 mm per day is considered extreme rain.
Erma explained that during April, strengthening north winds are expected to continuously form, caused by a vortex in the Indian Ocean southwest of West Java. This effect is reinforced by the convergence of atmospheric waves, namely Kelvin and Rossby.
"These factors are similar to those that caused the repeat of extreme weather conditions at the beginning of last March," Erma said, adding that the combination of atmospheric waves, strengthened by winds from the north and forming locally in northern Jakarta, will trigger extreme weather again, "Especially at the end of April."
Editor’s Choice: Hailstorms in Yogyakarta: Why Does the Phenomenon Occur in Tropical Regions?
Click here to get the latest news updates from Tempo on Google News
Hailstorms in Yogyakarta: Why Does the Phenomenon Occur in Tropical Regions?
18 jam lalu
The phenomenon of hailstorms in Yogyakarta shows that despite Indonesia being a tropical country, extreme weather like this can occur.
Indonesian Govt Set to Complete Ciliwung River Normalization by Next Year
1 hari lalu
The Indonesian government has agreed to complete the Ciliwung River normalization by 2026.
BMKG Explains Cause of Hailstorms in Yogyakarta
2 hari lalu
BMKG explains the phenomenon of a hailstorm in several areas of Yogyakarta on Tuesday afternoon, March 11, 2025.
Pramono Anung to Construct Dikes to Mitigate Potential Tidal Flooding
2 hari lalu
Pramono Anung will also arrange evacuation facilities, including boats, to address potential tidal flooding.
Floods in Probolinggo Claim One Life
3 hari lalu
The flood victim who died was a resident of Brani Village, Maron District, Probolinggo Regency.
Thousands Affected as Floods Grips Ten Villages in Gorontalo's Pohuwato Regency
4 hari lalu
Heavy and prolonged rainfall triggered flooding across ten villages in five subdistricts of Pohuwato, Gorontalo, affecting thousands of residents.
BMKG Predicts Extreme Weather to Continue Until Eid al-Fitr
4 hari lalu
The BMKG predicts that extreme weather will continue until Eid al-Fitr season despite Indonesia entering the transition towards the dry season.
Heavy Afternoon Rain Drenches Jabodetabek, Here's BMKG's Rainfall Map
4 hari lalu
BMKG's early weather warning: moderate to heavy rainfall was recorded in South Tangerang, Depok, and parts of Bogor and Bekasi Regencies.
BNPB to Build Houses for Residents Relocated Due to Floods, Landslides in Sukabumi
5 hari lalu
BNPB stated that the step is part of post-disaster recovery.
Prabowo Inspects Flood-Affected Residents in Bekasi
6 hari lalu
Indonesian President Prabowo Subianto visits flood-affected residents in Babelan, Bekasi Regency, West Java
