Newsletter Issue 29 (March 2023)

The Weather of February 2023 – A mild and dry February

With the northeast monsoon over southern China generally weaker than normal for most of the time, February 2023 was much warmer than usual in Hong Kong. The monthly mean maximum temperature of 22.0 degrees, monthly mean temperature of 18.9 degrees and monthly mean minimum temperature of 16.8 degrees were respectively the sixth, seventh and one of the eighth highest on record for February. The month was also much drier than usual. The total rainfall in the month was only 1.6 millimetres, about 4 percent of the normal figure of 38.9 millimetres.

Statement on Climate Change of our Society

The Hong Kong Meteorological Society acknowledges the overwhelming evidence that anthropogenic greenhouse gas emissions have led to warming of the earth. According to the Sixth Assessment Report of the Intergovernmental Panel on Climate Change of the United Nations, it is unequivocal that human influence has warmed the atmosphere, ocean and land. Furthermore, we draw the urgent attention of all that climate change has become a global crisis and emergency.

La Niña ending but warming El Niño may strike soon: WMO

An exceptionally long La Nina weather phenomenon that intensified drought and flooding is finally ending, the United Nations said Wednesday — but what comes next might bring its own problems. The outgoing La Nina phenomenon, a cooling of surface temperatures that can have a widespread impact on global weather conditions, started in September 2020. WMO said that after an unusually stubborn and protracted La Nina dragged on for three consecutive years — a so-called triple-dip — there was a good chance El Nino would develop in June-August.

Tropical Cyclone Freddy may set new record

The World Meteorological Organization is setting up an expert committee to evaluate whether tropical cyclone Freddy has broken the record as the longest-lasting tropical cyclone on record. It has been a named tropical cyclone for 34 days, crossed the entire South Indian Ocean and travelled more than 8,000 kilometers. The accumulated cyclone energy (index used to measure the energy released by a tropical cyclone) is the equivalent of an average full North Atlantic hurricane season.

New idea for sucking up CO2 from air shows promise

A new way of sucking carbon dioxide from the air and storing it in the sea has been outlined by scientists. The authors say that this novel approach captures CO2 from the atmosphere up to three times more efficiently than current methods. The warming gas can be transformed into bicarbonate of soda and stored safely and cheaply in seawater. The new method could speed up the deployment of carbon removal technology, experts say.



杭州亞運會 氣象服務保障工作穩步推進


Membership renewal is now more convenient

Payment through Faster Payment System (FPS) is now available (Our FPS ID: 166920512). Support your society, don’t forget to renew your membership!

The news in the Newsletter will be presented in the originating language only.