Cempaka initially developed as a weak tropical low around 332 km (206 mi) south of the city of Surabaya on 22 November as monitored by TCWC Perth and TCWC Jakarta.
At 06:00 UTC on 26 November, TCWC Jakarta recorded that the system was located 195 km (121 mi) southwest of the city of Cilacap as a tropical depression with a maximum wind speed of 45 km/h (30 mph).
Wave heights of 2–4 m (7–13 ft) across the central and east southern coast of Java were predicted and a warning was issued.

A Tropical Cyclone Formation Alert was issued by the Joint Typhoon Warning Center the next morning on 27 November, stating that satellite imagery depicted flaring convection near the center of the system.
Several hours later, TCWC Jakarta upgraded the system to a tropical cyclone, giving the name Cempaka which was then located 100 km (62 mi) south-southeast of Cilacap.
BMKG warned of heavy rainfall across the island of Java with possible flooding and landslides.
On 29 November, Cempaka weakened into a tropical low and turned to the southwest away from Java.
It continued moving to the southwest on the following day.
TCWC Perth and Jakarta last mentioned Cempaka on 1 December.
Cempaka initially developed as a weak tropical low around 332 km (206 mi) south of the city of Surabaya on 22 November as monitored by TCWC Perth and TCWC Jakarta. At 06:00 UTC on 26 November, TCWC Jakarta recorded that the system was located 195 km (121 mi) southwest of the city of Cilacap as a tropical depression with a maximum wind speed of 45 km/h (30 mph). Wave heights of 2–4 m (7–13 ft) across the central and east southern coast of Java were predicted and a warning was issued.
A Tropical Cyclone Formation Alert was issued by the Joint Typhoon Warning Center the next morning on 27 November, stating that satellite imagery depicted flaring convection near the center of the system. Several hours later, TCWC Jakarta upgraded the system to a tropical cyclone, giving the name Cempaka which was then located 100 km (62 mi) south-southeast of Cilacap. BMKG warned of heavy rainfall across the island of Java with possible flooding and landslides. On 29 November, Cempaka weakened into a tropical low and turned to the southwest away from Java. It continued moving to the southwest on the following day. TCWC Perth and Jakarta last mentioned Cempaka on 1 December.
Cyclone Cempaka