
2026年強烈颱風數量已達10個,氣象署分析超強聖嬰年對颱風活動之影響
今年第30號颱風「煙花」升級為強烈颱風,成為今年第10個強烈颱風。中央氣象署指出,受超強聖嬰現象影響,今年強烈颱風數量偏多且比例較高,且颱風平均生成位置偏東,有利於颱風發展。
AI-generated summary
超強聖嬰現象會改變熱帶太平洋海溫與大氣環流,進而影響西北太平洋颱風的生成環境與活動特徵。
今年第30號颱風「煙花」今天增強為強烈颱風,同時也是今年第10個強烈颱風。中央氣象署指出,今年強烈颱風又多、又強,與今年是超強聖嬰現象年有關。
氣象署指出,強聖嬰發展期間,熱帶太平洋的海溫分布與大氣環流會隨之改變,也可能進一步影響西北太平洋的颱風生成環境與活動特徵。從過去觀測來看,1997、2015及2026年這三個超強聖嬰年份,在強烈颱風數量、比例及平均生成位置上都有類似特徵。
氣象署統計資料期間為1996年到2026年,其中1996年到2025年採完整年度資料,今年則統計至10月28日。氣象署指出,由於2026年尚未結束,與歷年完整年度比較時,相關排名及比例仍須審慎解讀。
今年第一個特徵是強烈颱風數量偏多,2026年截至10月28日已累計10個強烈颱風,超過2015年全年的數量;1997年全年則有11個。1997、2015及2026年的強烈颱風數量分別為11、9及10個;而5個「強反聖嬰」年1998、1999、2007、2010、2020年,其強烈颱風數量都不超過3個,顯示超強聖嬰發展期間,強烈颱風數量呈現偏多的特徵值得持續關注。
氣象署也指出,今年強烈颱風比例較高,1997、2015及2026年的強烈颱風比例分別約為全年颱風的35%、33%及33%,依據1996年到2026年的統計資料,這三個超強聖嬰年份的強烈颱風平均比例約為33.3%,高於正常年的16.2%,以及反聖嬰年的13.4%。
氣象署指出,從1997、2015及2026年的強烈颱風不僅數量偏多,佔全年颱風的比例也明顯較高,呈現「超強聖嬰年」期間,強烈颱風活動較為活躍的特徵。
另外特徵是颱風平均生成位置偏東。氣象署指出,1997、2015及2026年的颱風平均生成位置均呈現偏東的特徵,在超強聖嬰發展期間,熱帶太平洋海溫分布與大氣環流會隨之改變,西北太平洋季風槽會向東延伸,颱風生成位置平均也會偏東。
氣象署指出,當颱風在較偏東的海域生成時,可能具有較長的海上發展路徑與時間;若海洋熱含量及大氣環境條件適合,便有機會持續增強,進而發展為強烈颱風。不過,颱風能否增強,仍受到海洋與大氣環境等多重因素影響,不能單憑生成位置判斷。
氣象署指出,這些結果反映出,超強聖嬰發展期間的海溫分布與大氣環流變化,與西北太平洋颱風活動特徵具有值得關注的關聯。透過持續監測海氣環境及颱風活動,將有助於深化對超強聖嬰氣候影響的掌握。

China's Ministry of Emergency Management worked with multiple departments to study and judge the heavy snowfall in Tibet from the 29th to the 31st, and made arrangements to prevent secondary disasters such as glacial lake outbursts and avalanches, and focused on the resettlement and livelihood security of the people affected by the disaster in Nagqu Baqing and Shigatse Gyirong.

The third "One Earth Summit Forum" was held in Hong Kong on the 28th, with the theme of "Intelligent Era·Common Prosperity". The guests discussed how artificial intelligence can help climate change response, green transformation and sustainable development, and emphasized the importance of technological innovation and global cooperation.

After Typhoon Qiangbi, people found a lone one-year-old male sika deer near Dong'an Bridge in Guanxi Town, Hsinchu County. The Hsinchu County Animal Protection Center will temporarily take it in and help find an owner. If no one claims it before November 4, a lottery will be opened to eligible people to adopt it.

The Central Meteorological Administration said that the northeast monsoon will weaken from tomorrow, but there will be two new waves of northeast monsoon on Friday and next Monday. The north and windward sides will become wet and cool, and the low temperature at night may drop to 17 degrees. In addition, the strong typhoon No. 30 "Fireworks" is generated. Although it will not directly affect Taiwan, coastal areas need to beware of long waves.

Tibet held a press conference on the ten-year achievements of the river and lake chief system on the 28th. Since the 14th Five-Year Plan, a total of 1.71 million river and lake chiefs and river patrol personnel at all levels in the region have visited rivers and lakes, achieving full coverage of river and lake management and protection, greatly improving water resource utilization efficiency, and being rated as excellent for the first time in the water resources management assessment.

The Central Meteorological Observatory predicts that from October 29th to 31st, there will be heavy rain and snow in southern Tibet on the Qinghai-Tibet Plateau, with local heavy snowstorms; at the same time, a new wave of cold air will affect the north, bringing about strong winds and a cooling process.