
The number of typhoons in the Western Pacific has been low this year, but their number should reach the annual average before year’s end, forecasters say. However, more important than the frequency of typhoons is their intensity this year. This year is an El Nino year. The phenomenon means that typhoons form farther away and get stronger before reaching Taiwan.
Taipei was hot and sunny on Friday morning, and temperatures are expected to remain high for the coming week. Only three typhoons have formed over the Western Pacific Ocean so far this year, well below the average of 4.3, but the Central Weather Bureau says between 21 and 25 more typhoons may hit the region before the year is over. Those reaching Taiwan should be on par with the annual average, it said.
Lu Kuo-chen
Forecaster
There should still be around four or five typhoons that reach Taiwan this year. Those numbers comply with our statistics, and there have been other El Nino years with similar numbers. We estimate that the number of typhoons that reach Taiwan this year will be close to normal values.
Although the number of typhoons reaching Taiwan this year will be within annual norms, during El Nino years typhoons tend to be stronger.
Lu Kuo-chen
Forecaster
During El Nino years, typhoons form farther from Taiwan. Therefore, to reach Taiwan a typhoon has to travel farther, and will pick up more warm water from the ocean, which will give it more energy. So, normally the typhoons that reach Taiwan during El Nino years are stronger.
In Taiwan, temperatures tend to rise and fall frequently in May. Then, in June, the western half of Taiwan proper tends to be warmer. Between July and September, temperatures normalize and tend to stay high, and rainfall decreases. This trend is the same in 2023, but the weather bureau says that as an El Nino year, typhoons are expected to be stronger.
颱風季要來了,氣象局今天舉行颱風展望記者會,預估今年侵台颱風數約有4到5個,下半年北太平洋西部颱風生成總數正常偏少,但侵台颱風個數則是正常,不過聖嬰現象將在秋季發生,颱風強度會達到中級以上。
台北一早艷陽高照,天氣晴朗,未來一週依舊高溫炎熱,氣象局表示,今年到目前為止,北太平洋西部只生成3個颱風,較氣候平均值4.3個還少,預估下半年約有21個至25個颱風生成,侵台個數接近正常值。
[[氣象局預報中心主任 呂國臣]]
“今年的颱風進來台灣的個數,最多還是4到5個左右,這數字大概是跟我們在統計,聖嬰年的這些案例是有類似的,預計在今年的颱風侵台數,大概是接近正常值的情況”
颱風侵台數雖然跟以往差不多,但聖嬰年的颱風強度會來到中度等級以上。
[[氣象局預報中心主任 呂國臣]]
“在聖嬰年它生成的位置離台灣比較遠,所以它要侵襲到台灣,它走過洋面會比較長,所以它吸收海水溫度,所提供能量就會比較多,所以侵台颱風在聖嬰年,通常強度會比較強”
在氣溫方面,5月冷熱交替頻繁,6月西半部偏暖,未來一季展望,7到9月氣溫以正常偏高的機率較大,而雨量則是正常偏少,氣象局也提醒,即將進入颱風季,雖然生成颱風數量少,但強度千萬不可輕忽。
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