Elaine Chan is among Government Flying Service pilots who fly devices called dropsondes into heart of region’s worst storms, gathering data so city’s Observatory can better predict typhoon paths and intensity.

The Hong Kong Monetary Authority is working with the city’s other market regulators to see how banks can help the local stock market stay open during typhoons and rainstorms.

Forecaster records temperatures of around 15 degrees in urban areas, with mercury dipping even further in New Territories.

Monsoon will bring ‘fine and very dry’ weather as temperatures will continue to drop, Observatory says.

About 4,790 trees have been downed or severely damaged this year, with ‘brittle’ bauhinia being the most affected.

Tse Chin-wan says emergency alert system that sends real-time notifications to mobile phone users should be reserved for events such as tsunami or earthquakes.

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Mercury soars to 30.7 degrees on Monday, narrowly missing out on becoming hottest November day on record by several degrees.

Readers discuss how to improve the city’s emergency response system, and why the government needs to change its pro-business stance on telemarketing.

Observatory says earthquake hit at 7.24pm, about 200km west of the city and with 8km-deep epicentre.

Readers discuss the rights arising from a land sale in 1911, the Observatory’s commitment to keeping the public informed, juvenile crime, and a US lawmaker’s gun arrest in Hong Kong.

Big data and artificial intelligence to be mobilised by government to improve responses to natural disasters and climate change.

Earthquake occurred at 3.20am about 350km east-northeast of the city, according to weather forecaster.

Debris equivalent to volume of Olympic swimming pool tumbled onto Yiu Hing Road following record black rainstorm last month.

Readers discuss criticism of the Observatory’s signalling during Typhoon Koinu, what the weather forecaster and MTR could do better, and an unconventional step the government could consider.

Readers discuss the danger of basing education policy on ideology, religious teaching at school, labour guidelines for bad weather, and why home price bulls should keep calm.

Cold front expected to reach southern China in latter part of next week, Observatory says.

Secretary for Transport and Logistics Lam Sai-hung insists safest way in storms is to wait it out in safety of terminal building when No 9 typhoon alert or more in force.

Readers discuss the benefits trade fairs can bring to the city as its tries to boost consumption, and enforcement of the law against dripping air conditioners.

Missing teen Matthew Tsang found in park resorted to drinking stream water and eating leaves, according to source, in case that has baffled experts.

Former director Shun Chi-ming says suspension of rail services along open-air sections at Koinu’s peak on Sunday left thousands scrambling for other transport.

Readers discuss how the city can up its flood prevention game, and measures that are not been taken to tackle climate change.

Amy Chan, mother of Matthew Tsang, says son recovering in hospital, as questions mount over how teen survived alone in wilderness for week without food or equipment.

Firefighters found Matthew Tsang, 17, on Wednesday alive and well after a seven-day search.

Firefighters, paramedics, Civil Aid Service members scoured Ma On Shan Country Park in race against time to find Matthew Tsang.