TEMPO.CO, Jakarta - The Indonesian Meteorology, Climatology, and Geophysics Agency (BMKG) forecasts that the atmospheric dynamics still support an increase in water vapor supply and the growth of convective clouds in several areas of West Java. Various factors affect this, such as warm sea surface temperatures in some western Indonesian waters and the potential formation of wind turning areas, although not consistent.
In addition, the Kelvin wave-type atmospheric disturbances are also predicted to be active. "The atmospheric stability conditions are still forecasted to vary from mild to strong categories, supporting the increase in the potential formation of convective clouds on a local scale," said Alita Nuraeni, a weather forecaster from the BMKG Climatology Station in West Java, in a written statement on Sunday, April 12, 2026.
From April 13-19, 2026, BMKG predicts that heavy rainfall will not occur every day in the West Java region. Potential moderate to heavy rainfall, which may be accompanied by thunder and strong winds on a local scale, is predicted to cover Bogor, Depok, Bekasi, Karawang, Purwakarta, Subang, Indramayu, Majalengka, Kuningan, and Sumedang on Monday, April 13. Subsequently, the areas of Greater Bandung, Sukabumi Regency, Cianjur, Garut, Tasikmalaya Regency.
On Tuesday, the same conditions are expected to cover Bogor, Depok, Bekasi, Karawang, Purwakarta, Subang, Indramayu, Majalengka, Kuningan, Bandung Regency, West Bandung, Cianjur, Sukabumi, Garut, Tasikmalaya City, Ciamis, and Pangandaran.
The potential moderate to heavy rainfall, which may be accompanied by thunder and strong winds on Wednesday, is expected to cover Bogor, Depok, Bekasi, Karawang, Purwakarta, Subang, Indramayu, Majalengka, Kuningan, Sumedang, Greater Bandung area, Sukabumi Regency, Cianjur, Garut, Tasikmalaya Regency, Ciamis, Banjar City, and Pangandaran.
Meanwhile, on Thursday, the same conditions are expected to cover Bogor Regency, Depok, Purwakarta, Subang, Cianjur, West Bandung Regency, Majalengka, and Kuningan. BMKG urges the public and relevant agencies to be vigilant against changing weather conditions, which have the potential to cause hydrometeorological disasters such as heavy to very heavy rainfall, strong winds, falling trees, floods, and landslides.
Prior to this, on Friday, April 10, dozens of residential homes were damaged after strong winds hit several areas in Bandung Regency. According to reports from the Bandung Regency BPBD officials, strong winds towards late afternoon caused scattered tree fallings in Bojongsari Village, Bojongsoang District; Baros Village, Arjasari District; and Lebakwangi Village. Meanwhile, in Mangunjawa Village, Mekarjaya, and Batukarut, fallen trees damaged the roofs and caused collapses of residents' homes.
Additionally, strong winds that damaged residential roofs occurred, among others, in the Nuansa Ciherang Complex, Tanjungsari Village, as well as damage to 20 houses in Bojong Kunci Village, Pameungpeuk District.
Meanwhile, strong gusts of wind that damaged 26 houses occurred in Babakan Village, Ciparay District. Furthermore, other affected areas from heavy rainfall included hail in Majalengka, landslides in Ciamis, and heavy rain and strong winds in Subang that caused tree falls, as well as in Bogor.
According to BMKG West Java Climatology Station weather forecaster Mirnawati Zulaikha, the series of disasters in West Java on April 10, 2026 visually correlated with the appearance of convective cloud cells or cumulonimbus. "The persistence of clouds and rain for 2-3 consecutive days became the main cause of soil saturation leading to landslides in Ciamis and inundation in Bandung," she said.
Read: BMKG: Heavy Rain and Strong Winds Expected in West Java This Week
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