Chinese Cities Suspend Schools, Cancel Flights ahead of Super Typhoon Yagi

A man looks up on a promenade at Victoria harbor in Hong Kong on September 5, 2024, as super typhoon Yagi tracked across the South China Sea towards the southern China coast. (Photo by Dale DE LA REY / AFP)
A man looks up on a promenade at Victoria harbor in Hong Kong on September 5, 2024, as super typhoon Yagi tracked across the South China Sea towards the southern China coast. (Photo by Dale DE LA REY / AFP)
TT

Chinese Cities Suspend Schools, Cancel Flights ahead of Super Typhoon Yagi

A man looks up on a promenade at Victoria harbor in Hong Kong on September 5, 2024, as super typhoon Yagi tracked across the South China Sea towards the southern China coast. (Photo by Dale DE LA REY / AFP)
A man looks up on a promenade at Victoria harbor in Hong Kong on September 5, 2024, as super typhoon Yagi tracked across the South China Sea towards the southern China coast. (Photo by Dale DE LA REY / AFP)

Cities in southern China suspended schools and canceled some flights on Thursday, as tropical storm Yagi strengthened into a super typhoon and barreled straight for the holiday island province of Hainan.
Yagi triggered floods and landslides on the main Philippine island of Luzon this week, leaving at least 13 dead, according to official figures.
The tropical storm intensified into a super typhoon as it tracked west across the South China Sea, China's Xinhua news agency said, packing winds of up to 209 kilometers (130 miles) per hour as it headed for Hainan.
"Hainan upgraded its emergency response to Yagi to the highest level at 11:30 am Thursday, according to the provincial disaster management authority," Xinhua said.
The typhoon is expected to make landfall on Friday afternoon in either Hainan or neighboring Guangdong, AFP said.
Work, school and local transport services were suspended from Thursday noon (0400 GMT) in Haikou, Hainan's capital.
In Hong Kong, which Yagi is expected to bypass, the weather observatory said it will issue the city's third-highest typhoon warning at 6:20 pm (1020 GMT), limiting public transport across the finance hub.
Classes at kindergarten and special schools in Hong Kong were suspended Thursday, while budget airline Hong Kong Express said six flights have been rescheduled.
Greater Bay Airlines said they would cancel four flights and reschedule two more due to the weather.
"Yagi will remain at super typhoon intensity and skirt around 300 kilometers (186 miles) to the southwest of Hong Kong tomorrow morning," the observatory said.
"Gale winds associated with Yagi are expected to affect the vicinity of the Pearl River Estuary tonight and tomorrow morning."
After southern China, Yagi will move towards Vietnam, on course to hit the northern and north-central regions around the famed UNESCO heritage site Halong Bay.
Vietnam's meteorological agency issued a storm warning on Thursday, and the government mobilized more than 2,700 military personnel for storm response.
Coastal provinces are planning a sailing ban on Friday, while Vietnam's mountainous provinces were ordered to prepare rescue vehicles.



Bull Sharks Linger in Warming Sydney Waters

A man watches large waves on Bondi Beach in Sydney on July 2, 2025, as large swells and high winds hit the east coast of Australia. (Photo by SAEED KHAN / AFP)
A man watches large waves on Bondi Beach in Sydney on July 2, 2025, as large swells and high winds hit the east coast of Australia. (Photo by SAEED KHAN / AFP)
TT

Bull Sharks Linger in Warming Sydney Waters

A man watches large waves on Bondi Beach in Sydney on July 2, 2025, as large swells and high winds hit the east coast of Australia. (Photo by SAEED KHAN / AFP)
A man watches large waves on Bondi Beach in Sydney on July 2, 2025, as large swells and high winds hit the east coast of Australia. (Photo by SAEED KHAN / AFP)

Bull sharks are lingering off Sydney's beaches for longer periods each year as oceans warm, researchers said Friday, predicting they may one day stay all year.

The predators are migratory, swimming north in winter when Sydney's long-term ocean temperatures dip below 19 degrees Celsius (66 degrees Fahrenheit) to bask in the balmier waters off Queensland.

A team of scientists looked at 15 years of acoustic tracking of 92 tagged migratory sharks in an area including Bondi Beach and Sydney Harbour.

Records show the sharks now spend an average of 15 days longer off Sydney's coast in summer than they did in 2009, said James Cook University researcher Nicolas Lubitz.

"If they're staying longer, it means that people and prey animals have a longer window of overlap with them."

Shark attacks are rare in ocean-loving Australia, and most serious bites are from three species: bull sharks, great whites, and tiger sharks, according to a national database.

There have been more than 1,200 shark incidents around Australia since 1791, of which over 250 resulted in death.

Researchers found an average warming of 0.57C in Bondi for the October-May period between 2006 and 2024, said the study published in the peer-reviewed journal Science of The Total Environment.

Over a longer period, remotely sensed summer sea-surface temperatures in the area rose an average 0.67C between 1982 and 2024, they said.

"If this trend persists, which it likely will, it just means that these animals are going to spend more and more time towards their seasonal distributional limit, which currently is southern and central New South Wales," Lubitz said.

"So it could be that a few decades from now, maybe bull sharks are present year-round in waters off Sydney," he added.

"While the chances of a shark bite, and shark bites in Australia in general, remain low, it just means that people have to be more aware of an increased window of bull shark presence in coastal waters off Sydney."

Climate change could also change breeding patterns, Lubitz said, with early evidence indicating juvenile sharks were appearing in rivers further south.

There was some evidence as well that summer habitats for great whites, which prefer colder waters, were decreasing in northern New South Wales and Queensland, he said.

Tagged sharks trigger an alarm when they swim within range of a network of receivers dotted around parts of the Australian coast, giving people real-time warnings on a mobile app of their presence at key locations.