Newsletter Issue 64 (February 2026)

「2021-2025十大矚目天氣及氣候事件選舉」網上投票

香港天文台聯同香港氣象學會舉辦《2021-2025十大矚目天氣及氣候事件選舉》，旨在引起公眾關注過去五年在香港及全球發生重大影響的天氣及氣候事件，期望藉此提升公眾對極端天氣與氣候變化的認知及生態環境的關注。
請即投票選出你心目中最具代表性嘅天氣及氣候事件！

The weather of January 2026 – A dry and sunny January

With dry northeast monsoon affecting Hong Kong for most of the time in the month, January 2026 was much drier and sunnier than usual. Only about 10 percent of the normal of 33.2 millimetres in the month were recorded. The monthly mean relative humidity of 63 percent was 11 percent below the normal of 74 percent for January. The monthly total sunshine duration amounted to 216.1 hours, about 48 percent above the normal of 145.8 hours.

Extreme heat, cold, precipitation and fires mark the start of 2026

The importance of accurate and timely forecasts and investment in early warning systems has once again been highlighted by extreme weather which wreaked a heavy economic, environmental and human toll throughout the first weeks of 2026. “It is no wonder that extreme weather consistently features as one of the top risks in the The World Economic Forum’s flagship annual Global Risks Report,” said WMO Secretary-General Celeste Saulo.

World Meteorological Day 2026 – “Observing Today, Protecting Tomorrow” (測今日氣象，護明日家園)

Every 23 March, WMO commemorates the coming into force of the Convention establishing WMO on 23 March 1950. It showcases the essential contribution of NMHSs to the safety and wellbeing of society and is celebrated with activities around the world. The theme for World Meteorological Day 2026 is “Observing Today, Protecting Tomorrow.”

Advances in tropical cyclone monitoring and forecasting in Hong Kong using ensemble predictions and artificial intelligence

Five notable advancements in the HKO by utilizing EPS and AI to support TC monitoring and forecasting include (i) TC strike probability maps generated from multiple EPS, (ii) probabilistic storm surge forecast products to strengthen coastal flood risk assessment, (iii) an AI-based system for real-time position analysis and intensity estimation based on satellite imagery, (iv) a real-time flood monitoring tool leveraging camera imagery and AI algorithms, as well as (v) the use of AI weather prediction models to support TC forecasting operations.

氣象模型 “風雷” “風清” “風順” 升級版投入業務運行

氣象人工智慧預報模型“風雷”“風清”“風順”已完成升級，預報性能較此前版本有明顯提升。這是一年來“氣象+人工智慧”深化應用的生動縮影。2025年起，氣象部門深化人工智慧與氣象業務全鏈條融合，協同推進“科研—模型—應用”一體化發展。從自主模型研發到場景化應用落地，人工智慧為氣象預報預警服務提質增效，為防災減災、行業發展注入數智動能。

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!