The JMA noted that Kong-rey reached its maximum strength with 10-minute sustained winds of 185 km/h (115 mph) and a central pressure of 925 hPa (27.32 inHg).

The following day, Kong-rey completed the eyewall replacement cycle as it approached Taiwan from the southeast, and passed close to Batanes and the Orchid Island before making landfall in Chenggong, Taitung.

The JMA reported that warm, moist air from the storm was bringing heavy rainfall and thunderstorms to western Japan.

Satellite imagery revealed limited deep convection primarily in the eastern and northern quadrants, while two disturbances near 97W and 98W interacted within a complex steering environment, with 98W moving poleward and being absorbed by 97W.

[1] The Japan Meteorological Agency (JMA) designated the disturbance as a low-pressure area the following day,[2] and on October 24, it was upgraded to a tropical depression.

[4]At 00:00 UTC on October 25, the JMA upgraded the system to a tropical storm named Kong-rey,[5] which the JTWC later designated as 23W, featuring a partially obscured circulation center and a deep band of convection on its eastern and northern sides.

[6] Kong-rey exhibited a pronounced asymmetrical circulation with fragmented and disorganized convection as it moved northwestward along the southwestern edge of a mid-level subtropical high,[7][8] while microwave imaging revealed curved convective bands concentrated in the western semicircle, with shallow bands tightly wrapping around a ragged circulation center.

[12] As it moved west-southwestward along the southeastern periphery, the system displayed strong equatorward flow and improving poleward outflow, prompting the JMA to upgrade it to a severe tropical storm at 00:00 UTC on October 27.

[13][14] Early the next day, the JTWC upgraded the storm to a minimal typhoon before the JMA followed suit,[15] which noted an improved structure with convective banding fully wrapping around the circulation and achieving a more symmetric shape;[16] the typhoon also developed a large, ragged eye, characterized by a cloud-filled structure measuring 52 miles (83 km) in diameter.

[23] The typhoon had a distinct and highly symmetrical eye measuring 46 miles (74 km) in diameter, while microwave imaging reveals a double concentric eyewall structure.

[24] Kong-rey completed the eyewall replacement cycle shortly afterward,[25] resulting in a ragged but relatively symmetrical eye feature as the typhoon approached Taiwan from the southeast and passed close to Batanes and the Orchid Island.

[29] After making landfall, the eye quickly became cloud-filled, exhibiting deteriorating convective bands and eyewall structure, while surface observations from Taitung recorded sustained winds of 104 km/h (64 mph).

[32] By 12:00 UTC on November 1, the JMA reported that Kong-rey had transitioned into an extratropical low as it moved north-northeastward along the northwestern periphery of a mid-level subtropical high,[33][34] quickly developing frontal characteristics with a weak cold front extending south from the center and a warm front extending east-northeastward.

[41] PAGASA indicated that residents in the northern and northeastern parts of Luzon can expect rain on October 31 and November 1 due to the storm.

PAGASA also included the entirety of Cagayan (including Babuyan Islands); Camarines Norte; Ifugao; Isabela; La Union; Mountain Province; Nueva Vizcaya, with portions of Quirino; Aurora; Benguet; Albay; Camarines Sur; Sorsogon; Northern Samar; and Eastern Samar.

[47] PAGASA later included the entirety of Cagayan; Apayao; Ilocos Norte; portions of Kalinga; and Abra, though Eastern and Northern Samar was removed from Signal No.

[72] On October 29, the Central Weather Administration (CWA) released its first sea warning for the storm covering southeastern Taiwan and the Bashi Channel,[73][74] adding that Kong-rey could generate waves with a height ranging from 16–20 ft (5–6 m)[75] and rain measuring 20–31 in (500–800 mm).

[86] A group of 27 visitors at Wuling Farm, Taichung, were told to stay while descending, with the tourists being provided food and water.

In anticipation of the storm's effects, railway and maritime authorities in China suspended several train services and canceled 71 coastal passenger ferry routes.

The National Meteorological Center of CMA issued an orange alert for the storm, warning that it was expected to bring torrential rains to eastern areas, including Fujian, Zhejiang, Jiangsu provinces, and Shanghai.

[90] The Ministry of Water Resources initiated a Level-IV emergency response to manage the risk of flooding and the impacts of the storm expected to hit Shanghai.

[91] Kong-rey was not predicted to hit the Korean Peninsula, but it is expected to bring significant rainfall to the southern regions due to its moisture.

[102] The air assets of the Armed Forces of the Philippines were ready to airlift relief goods and other supplies to areas affected by Kong-rey.

[104] The Department of Social Welfare and Development is set to provide 14,000 family food packs to the island province of Batanes.

[106] The Philippine Coast Guard vessel BRP Gabriela Silang was dispatched to Batanes to deliver additional aid after it had been forced to shelter due to bad weather in Sual, Pangasinan.

[108] During the 11th anniversary of Typhoon Haiyan (Yolanda), President Bongbong Marcos emphasized the importance of avoiding complacency in disaster preparedness, noting that the country is still recovering from Trami and Kong-rey.

[80] Mudslides and landslides happened across the country, with overflowing rivers, blocked roads, and a destroyed bridge in Fuli Township.

[87] In Hualien City and Zhuoxi, more than 300 mm (12 in) of rain fell in a 24-hour period, resulting in mudslides that obstructed roads and damaged infrastructure.

[122] The cargo vessel Yu Zhou Qi Hang, carrying three cranes and 284 tonnes of fuel, ran aground on the Yehliu Geopark, raising concerns of an oil spill.

[125] The Silks Place Taroko hotel, the park's only five-star accommodation, was forced to close until 15 January 2025 after its water and electricity supplies were cut.