Jakarta authorities are continuing large-scale weather modification efforts as the region grapples with intense rainfall and the aftermath of recent flooding. The Jakarta provincial administration extended its cloud seeding operation through February 2nd, expanding the area of focus to include satellite cities surrounding the capital.
Weather Modification Efforts Expand
The Jakarta Disaster Mitigation Agency (BPBD) dispersed 3.2 tonnes of salt and quicklime into clouds on Tuesday, conducting four flight sorties at altitudes ranging from 900 to 3,700 meters. These efforts targeted not only Jakarta itself, but also Bekasi and Bogor in West Java.
According to Jakarta Governor Pramono Anung, the expansion is intended to prevent flooding originating in neighboring cities like Tangerang, South Tangerang, Bogor, and Bekasi. The administration has utilized cloud seeding techniques in the past, both to induce rainfall during droughts and to divert rain clouds.
Broader Weather Concerns
The current weather situation is part of a larger pattern of extreme weather across Indonesia. The Meteorology, Climatology and Geophysics Agency (BMKG) has issued warnings for heavy rainfall and potential floods and landslides across southern Sumatra, Java, Bali, and Nusa Tenggara islands until the end of the month.
Several atmospheric factors are contributing to the conditions, including the formation of a tropical cyclone invest – designated Invest 98S – over the Indian Ocean, as well as an intensifying Asian monsoon and a cold surge from mainland Asia.
In addition to rainfall-induced flooding, the Jakarta BPBD has warned of potential tidal flooding along the city’s northern coast, particularly in Ancol, Cilincing, and Tanjung Priok, between January 27th and February 3rd. Flooding in East, South, and North Jakarta from last week has begun to recede, and the City Hall has committed to covering medical expenses for those affected.
Frequently Asked Questions
What is cloud seeding?
Cloud seeding involves dispersing substances like salt and quicklime into clouds from aircraft to encourage rainfall at a specific time, or to modify cloud behavior.
What areas are currently at risk of flooding?
The Jakarta BPBD has warned of potential tidal flooding in Ancol, Cilincing, and Tanjung Priok in North Jakarta. The possibility of high rainfall also remains in Tangerang, South Tangerang, Bogor, and Bekasi.
How many fatalities have been reported due to the recent flooding?
At least two people reportedly died during the recent flood in Jakarta.
If the cloud seeding operation is successful, rainfall intensity in Jakarta and surrounding areas could decrease in the coming days. However, the BMKG’s broader warning suggests that the potential for extreme weather events will likely persist throughout the month, and continued vigilance is advised.
