The Observatory issued the amber rainstorm warning on Monday morning, and police had five reports of floods in rural areas. Thunderstorms were predicted to continue until Wednesday.

Observatory issues amber storm and thunderstorm warnings little more than an hour apart, with Lantau Island and parts of New Territories expected to be worst hit.

But warm days forecast to give way to more unsettled weather next week.

The Eta Aquarids meteor shower, created by debris from Halley’s Comet, is expected to be at its brightest on Monday night but Hong Kong is in for gloomy weather.

The mean maximum temperature hit 27.2 degrees Celsius, 2.2 degrees above the normal figure and the fifth highest on record for April.

The Hong Kong Federation of Trade Unions says the government’s guidelines for employers during storms, suggested on Tuesday, lack legal heft.

The amended storm guidelines, which were revealed on Tuesday, will not be legally binding however.

Forecaster raises the signal at 4pm, which means heavy rain exceeding 30 millimetres in an hour has fallen or is expected to fall across the city.

Hong Kong Observatory to allow trusted amateur weather watchers to post photos and video footage to MyObservatory app.

The 250-metre wooden cycling track – which remains closed indefinitely – and arena were soaked on Friday evening during rainstorm.

Heavy showers and strong winds lash city – a far cry from forecast.

Hong Kong Observatory said an easterly airstream of unsettled weather is affecting coastal areas of Guangdong province and also Hong Kong.

City soaked by rain since last night with amber rainstorm warning in place for two hours.

Temperatures for month up 1.9 degrees Celsius on average as Hong Kong Observatory says 90 per cent chance that year could be one of the hottest in history, while city also had double the amount of rainfall.

Government intends to roll out new preparations for typhoon strikes, and floating breakwaters to lessen waves’ impact.

Temperatures could drop to below 20 degrees Celsius, with thunderstorms expected overnight.

Observatory expects the usual number of typhoons, but will publish more wind data from stations amid wide public concern. It also warns about stronger storms caused by global warming.

The Observatory provides the latest information on space weather to special users, such as the aviation and energy sectors. A revamped space weather webpage will soon be launched to educate the general public.

Last month was the second-warmest February on record, with an average temperature 3.3 degrees higher than normal. Observatory attributes increase to ‘global warming and local urbanisation’.

Extent of death and destruction brought by September’s monster storm sees the name Mangkhut retired.

Amber signal issued on Tuesday as city wakes to thunder and downpours.

From a polar vortex in the United States, to searing heat in Australia, and the hottest Lunar New Year on record in Hong Kong, extreme weather events are becoming increasingly frequent around the world.

The weather was much kinder than the forecasters had predicted, and fog and drizzle held off so visitors mostly enjoyed a clear view of the 23-minute show.

Temperatures set to reach 24 degrees Celsius but fog could shroud annual Lunar New Year fireworks display.

Slightly warmer weather expected next week, with minimum temperature to rise above 16 degrees next Wednesday.

Observatory says northeast monsoon means temperatures over southern China will fall significantly on Monday and Tuesday.

An exceptionally warm spring pushed mean temperatures beyond usual levels. Observatory recorded 36 ‘very hot days’ – with temperatures of 33 degrees Celsius or warmer, the third-highest number on record.