The latest storm and low pressure information from the Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA) on the morning of August 22 said that at 8:00 a.m. on August 22, low pressure 08e being monitored inside the PAR had developed into a tropical depression and was named one one one one.
Tropical depression Isang is in the waters of Casiguran, Aurora, Philippines. The tropical depression has sustained winds of 55 km/h, gusts of up to 75 km/h, and is moving west at a speed of 15 km/h.
The system was previously about 150km east of Baler, Aurora at 3 a.m.
PAGASA has started issuing periodic bulletins starting at 11am to update on the developments and potential impacts of tropical depression Isang.
At the same time, another low pressure area near the East Sea, low pressure 08f, is being monitored outside the Philippines' forecast area. Philippine typhoon forecasters say the low pressure is unlikely to strengthen into a tropical depression in the next 24 hours.
In the western Pacific basin, forecasters are also monitoring Lingling - another system originating from the Philippine forecast area.
Typhoon Lingling made landfall in Kagoshima Prefecture, Japan on the evening of August 21 and took to sea on the morning of August 22. However, the heavy rain cloud bands continue to develop, causing heavy rain here.
On the morning of August 22, Lingling changed its state from a tropical storm to a tropical depression as it moved in southwestern Japan. As the system is moving slowly, Japanese authorities have warned of the risk of landslides and flooding due to continued heavy rain.
Over 300mm of rain has been recorded in southern Kyushu for 24 hours as of the morning of August 22.
Landslide warnings have been issued for some areas of Kagoshima. Some areas in the province were affected in record rains in early August. People here are advised to be vigilant against landslides, floods and river water overflowing the banks.