BANGKOK — Typhoon Kajiki, the 13th tropical cyclone of the Pacific season, is expected to weaken into a depression by the time it reaches Nan province on Tuesday, delivering up to 200mm of rainfall and triggering potential flooding across northern and northeastern Thailand.

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The Meteorological Department issued warnings Sunday, forecasting intense downpours in the North and Northeast on Monday and Tuesday. Low-lying areas are at high risk of flash floods as the storm moves inland from Vietnam.

In preparation, the National Water Resources Office has increased water discharges from the Sirikit Dam from 40–50 million cubic meters to 55 million cubic meters per day to create additional storage capacity. Discharges into the Chao Phraya River will remain steady at 1,200 cubic meters per second to manage northern runoff and high tides.

The Department of Public Disaster Prevention and Mitigation has activated its cell broadcast system to alert vulnerable communities. However, officials acknowledged that some areas may receive delayed warnings due to insufficient data for comprehensive analysis.

Typhoon Kajiki set to impact Thailand, northern provinces brace for heavy rainfall https://t.co/ltWUfK1zjM

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Currently classified as a Level 1 tropical cyclone, Kajiki is approaching Hainan Island, China, and is expected to make landfall in northern Vietnam between Sunday and Monday. This will bring increased rainfall to Bangkok, Kanchanaburi, Ratchaburi, Phetchaburi, Chanthaburi, and Trat.

By Monday, the system will weaken to a tropical storm over central Laos before entering Thailand through Nakhon Phanom, Sakon Nakhon, Bueng Kan, Udon Thani, and Loei. It will further degrade into a depression upon reaching Nan, with heavy rain expected in Tha Wang Pha, Bo Klua, Mueang, and Chalerm Phra Kiat districts.

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The storm will continue westward through Phrae, Phayao, Chiang Rai, Lampang, Lamphun, Chiang Mai, and Mae Hong Son before dissipating. Authorities urge residents in affected regions to monitor updates and prepare for possible evacuations.

-Thailand News (TN)