BMKG Monitors Cyclone Seed, Extreme Weather Potentially Hits Yogyakarta
YOGYAKARTA - The Meteorology, Climatology and Geophysics Agency (BMKG) is monitoring the emergence of a number of tropical cyclone seeds that have the potential to affect weather and water conditions in Indonesia. One of the areas expected to be affected is the Yogyakarta Special Region (DIY).
Based on the official report of the BMKG on Thursday, December 18 at 19.00 WIB, there were two systems of concern, namely Tropical Cyclone 93S and Tropical Cyclone 95S. Tropical Cyclone 93S was first detected on December 11, 2025 at 07.00 WIB and is currently located around the Indian Ocean south of Central Java.
"The Tropical Cyclone 93S Seed System has a medium to high chance of becoming a tropical cyclone in the next 24 hours," said BMKG in its official statement, quoted on Friday, December 19.
BMKG stated that the existence of Tropical Cyclone 93S has the potential to cause direct and indirect impacts in the form of extreme weather in a number of regions in Indonesia. Potential rain with moderate to heavy intensity is expected to occur in Banten, Jakarta, West Java, Central Java, Yogyakarta Special Region, to East Java.
In addition to heavy rain, BMKG also predicts the potential for strong winds in the coastal areas of southern Banten, West Java, Central Java, and DI Yogyakarta. This condition is at risk of disrupting community activities, especially in coastal areas and areas prone to hydrometeorological disasters.
In the marine sector, sea waves with a height of between 1.25 to 2.5 meters or a moderate sea category are likely to occur in the Sunda Strait, the Indian Ocean south of Bali to Sumba Island, as well as the waters of the Bali-Lombok Strait to the southern Alas Strait.
In addition to 93S, BMKG is also monitoring Tropical Cyclone 95S, which began forming on December 15, 2025 at 00.00 UTC or 07.00 WIB. This system is in the Arafura Sea, north of Australia.
"The Tropical Cyclone 95S Seed System has a low chance of becoming a tropical cyclone in the next 24 hours," said BMKG.
Although the chances are relatively low, Tropical Cyclone 95S has the potential to trigger moderate to heavy rain in the South Papua region. In addition, high waves with a height of 2.5 to 4 meters or rough sea category are likely to occur in the western Indian Ocean Lampung to the southern Indian Ocean Banten to East Java.
BMKG urges the public to increase vigilance against the potential for heavy rain, strong winds, and high waves, especially in the Yogyakarta area and along the southern coast of Java Island. The public is also asked to continue to monitor weather updates and early warnings issued officially by BMKG.
Anticipation and preparedness steps are considered important to minimize the risk of hydrometeorological disasters in the midst of extreme weather dynamics that are still potentially occurring.