Typhoon Jenny (Koinu) slightly weakened and started turning west northwest toward the southern part of Taiwan early Wednesday, October 4.
Taiwan is within the Philippine Area of Responsibility (PAR).
Jenny was last spotted 270 kilometers east northeast of Itbayat, Batanes, moving west northwest at 10 kilometers per hour (km/h).
The typhoon’s maximum sustained winds slightly decreased from 155 km/h to 150 km/h, while its gustiness also eased from 190 km/h to 185 km/h.
The Philippine Atmospheric, Geophysical, and Astronomical Services Administration (PAGASA) updated the list of areas under tropical cyclone wind signals as of 5 am on Wednesday.
Jenny is projected to keep moving west northwest until Wednesday afternoon, then west.
The typhoon could make landfall in the southern part of Taiwan on Thursday morning, October 5, then exit PAR on Thursday afternoon or evening.
Outside PAR, it will keep moving west over the Taiwan Strait and the coastal waters of southeastern China.
PAGASA also expects Jenny to weaken further due to interaction with dry air and once it hits Taiwan’s rugged terrain.
Jenny is the Philippines’ 10th tropical cyclone for 2023 and the second for September, having developed last Friday, September 29.
PAGASA expects four to seven tropical cyclones to form within or enter PAR from October 2023 to March 2024. For October alone, there may be two or three tropical cyclones.