The Thai Meteorological Department forecasts heavy rain in the upper northern and northeastern regions, particularly in the western and eastern sections of southern Thailand over the next 24 hours, driven by strong southwest monsoon winds covering the upper Andaman Sea and Thailand. Residents are warned of dangers from heavy rainfall and accumulated water that may cause flash floods and flash flooding, especially in foothill areas near water channels and low-lying regions. Health precautions during weather changes are also recommended. Wave conditions in the upper Andaman Sea are moderate to strong, with waves 2-3 meters high and exceeding 3 meters during thunderstorms. The lower Andaman Sea and upper Gulf of Thailand have waves 1-2 meters high, exceeding 2 meters during thunderstorms. Fishing boats should proceed with caution and avoid thunderstorm areas, while small boats in the upper Andaman Sea should remain ashore. Detailed forecasts for each region include: Northern region with 40 percent thunderstorm coverage and heavy rain in Tak, Kamphaeng Phet, Phichit, Phitsanulok, and Phetchabun provinces; Northeastern region with 70 percent coverage and heavy rain in Loei, Nong Khai, Bueng Kan, Nong Bua Lamphu, Udon Thani, Sakon Nakhon, Nakhon Phanom, Chaiyaphum, Khon Kaen, Kalasin, Mukdahan, Yasothon, Amnat Charoen, Nakhon Ratchasima, Sisaket, and Ubon Ratchathani; Central region with 70 percent coverage and heavy rain in Nakhon Sawan, Uthai Thani, Chai Nat, Sing Buri, Ang Thong, Lopburi, Saraburi, Phra Nakhon Si Ayutthaya, Suphan Buri, Kanchanaburi, and Ratchaburi; Eastern region with 60 percent coverage and heavy to very heavy rain in Nakhon Nayok, Prachuap Khiri Khan, Chachoengsao, Chonburi, Rayong, Chanthaburi, and Trat; Southern east coast with 60 percent coverage and heavy rain in Phetchaburi, Prachuap Khiri Khan, Chumphon, Surat Thani, Nakhon Si Thammarat, Phatthalung, and Songkhla; Southern west coast with 70 percent coverage and heavy to very heavy rain in Ranong, Phang Nga, Phuket, Krabi, Trang, and Satun.

The Jenz Co., Ltd. and Ditto (Thailand) PCL hosted the Ditto Championship 2024 youth golf tournament, a two-day, 36-hole competition held May 16-17 at Treasure Hill Golf Country Club in Chonburi Province. The event is the third stop of the Chang-Jenz Golf Tour 2026, which qualifies golfers for the world amateur ranking scoreboard (JGS). The tournament featured three age divisions: Special GENZ (ages 19-23), Super GENZ (ages 15-18), and Junior GENZ (ages 11-14), with separate boys and girls categories. Top cumulative scorers will be selected for The Jenz golf development program, and the six best performers across all three venues in Super and Junior GENZ divisions will earn spots at the Yonex Junior Golf Championship 2026 in Japan.

In the Super GENZ Boys division, Satsart Chantaurai claimed the championship with a combined two-day score of even par 144 (77-67), edging second-place finisher Thitiwat Piturnngakphitag by one stroke with a score of 1-over par 145. In the Super GENZ Girls category, Sirikorn Somprakan secured the title with a two-day score of 2-over par 146 (71-75). For the Junior GENZ Boys, Woravivat Tayavivat won with an impressive final-day charge, finishing at 6-over par 150. In the Junior GENZ Girls division, Haedeum Oh defeated Kirttika Kamalpraniee in a playoff with a combined score of 1-under par 143.

In the Special GENZ Boys category, Pheemawatch Gaewglinjantan took the title with a two-day score of 13-over par 157, while Seohyeon Baek won the Special GENZ Girls division with a two-day score of 9-over par 153.

Six golfers earned berths for the Yonex Junior Golf Championship 2026 in Japan based on cumulative scores across the first three tour venues: Boys—Woravivat Tayavivat (1,740 points), Satsart Chantaurai (1,630 points), and Riuki Osaka (1,550 points); Girls—Pattanamont Sutthiraksapong (2,200 points), Kirttika Kamalpraniee (1,800 points), and Sirikorn Somprakan (1,718 points).

The Rail Department revealed that the train driver involved in the collision with a bus had not received an operator's license. A disciplinary committee has been established and legal proceedings initiated against all involved staff. On May 17, Rail Department Director-General Pichit Kunathammarak disclosed that police testing confirmed drug use in the urine of Sanyampon, 46, a driver of train 2126 running the Laem Chabang-Bang Sue route, which collided with line 206 bus at the Asok-Din Daeng railway crossing on May 16, killing 8 and injuring over 30.

In response to the incident, the Rail Department issued urgent orders to the State Railway of Thailand requiring drug and alcohol screening for all personnel with driving and operational responsibilities, as well as ground safety staff such as crossing gate operators and signal workers before each shift, implementing a zero-tolerance policy.

Pichit stated that Sanyampon had not received an operator's license from the Rail Department. The driver has been suspended, and the State Railway has been ordered to establish a serious disciplinary committee while suspending the train driver and associated crossing gate personnel immediately, with full legal prosecution. An in-depth investigation will determine how supervisors allowed a drug-impaired individual to operate a train carrying numerous passengers.

Pichit noted that the Railway Transport Act B.E. 2568, Section 90, empowers transport inspectors to conduct drug and alcohol testing on personnel suspected of impairment. The Rail Department is issuing implementing regulations to enforce the law. This order aims to restore public confidence that the Rail Department prioritizes safety above all else.

Spanish MotoGP rider Alex Márquez of Gresini Racing has undergone emergency surgery following a severe crash at the Catalan Grand Prix in Spain. He sustained a fractured C7 cervical vertebra, with the incident causing such a violent impact that he was launched into the air, prompting race officials to immediately deploy the red flag. The Gresini team has since disclosed that Márquez sustained a slight fracture to the C7 cervical vertebra with additional assessments scheduled for next week. He also suffered a fractured right rib, which required immediate surgical intervention at a Catalonia hospital using metal plates for stabilization.

Four foreign teenagers have been arrested for removing street lamps from Phuket's Old Town area and destroying them, claiming they were just having fun. Images shared on social media showed the group of foreign tourists engaged in inappropriate behavior in the Old Town district along Phangnga Road in Muang Phuket, where they removed lamps from in front of shops, played with them, and then discarded them, causing damage. On May 17, 2025, Police Captain Chatri Chukkaew, superintendent of Muang Phuket Police Station, coordinated with Phuket City Municipality to file a complaint against those responsible and ordered the investigation unit to track down the group. Officers located them in Thalang district and successfully apprehended all four teenagers, aged 15-16, who confessed they acted out of youthful recklessness before legal action was taken.

Environment Minister Suchart Chomklin announced on May 17, 2026, his delight after learning that Khao Khiao Open Zoo in Chachoengsao Province has successfully hatched a masked finback bird chick for the first time in Thailand. This marks a major conservation breakthrough for the country, as the species has been extinct in the wild for over 40 years.

The minister praised the achievement as a testament to the dedication and expertise of Thailand's wildlife conservation professionals, including the Organization of Thai Zoos, Khao Khiao Open Zoo, veterinary teams, and animal care staff who collaborated closely to safely bring the first chick to life.

According to Khao Khiao Open Zoo Director Narongwit Chadchoi from Sri Racha District, the successful hatching came from eggs of the only remaining breeding pair at the facility. Staff extracted and artificially incubated the eggs, then hand-reared the chick. Given that masked finback birds lay only 1-2 eggs per year with a naturally low hatching success rate, officials decided to implement a "life-saving operation" to maximize the chick's chances of survival—an effort that ultimately succeeded.

This chick represents the first masked finback bird successfully bred at Khao Khiao Open Zoo under the Organization of Thai Zoos, as well as the first such bird bred at any member zoo of the World Association of Zoos and Aquariums and the Southeast Asian Zoo and Aquarium Association.

Khao Khiao Open Zoo is now the fourth facility in the world officially approved to breed masked finback birds in captivity, following the Bang Pra Water Bird Breeding Station in Thailand, Assam State Zoo in India, and Angkor Biodiversity Conservation Center in Cambodia.

"This success represents another important milestone for Thailand in conserving endangered wildlife and demonstrates the collaborative effort of all sectors in reviving critically endangered species populations," Minister Suchart stated. "The Ministry of Natural Resources and Environment remains committed to supporting research and breeding programs for rare wildlife to maintain Thailand's biological diversity for future generations."