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Back氣象局長鄭明典:午後雷陣雨預報經驗法則「見雷加三天」
氣象局長鄭明典:午後雷陣雨預報經驗法則「見雷加三天」
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氣象局長鄭明典:午後雷陣雨預報經驗法則「見雷加三天」

En resumen

氣象局長鄭明典提醒民眾,因接近夏至,中午陽光紫外線強需注意防曬。他分享預報午後雷陣雨的經驗法則「見雷加三天」,意即若當天有雷陣雨,隔天持續發生的機率高,連續報三天雷陣雨都屬合理。今雙北、桃園宜蘭及中南部山區有明顯降雨訊號,雙北雨勢恐不小。

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Por qué importa

太平洋高壓逐漸增強西伸,各地天氣穩定高溫炎熱,午後中部以北、東北部地區及其他山區有局部短暫雷陣雨,午後中部以北山區仍有局部大雨發生的機率。

Tamaño de fuente

今大太陽出門要小心,很接近夏至,提醒民眾中午陽光紫外線會很強。(資料照)

太平洋高壓逐漸增強西伸,各地天氣穩定高溫炎熱,午後中部以北、東北部地區及其他山區有局部短暫雷陣雨,午後中部以北山區仍有局部大雨發生的機率,氣象局(署)長鄭明典表示,今(18日)中午陽光紫外線會很強要注意,至於午後雷雨發生機率,他透露一個預報經驗法則「見雷加三天」。

鄭明典在臉書PO出雲圖,雲圖顯示台灣上空雲量稀疏;鄭明典指出,今大太陽,出門要小心,很接近夏至,提醒民眾中午陽光紫外線會很強,至於今天會有午後雷陣雨嗎?鄭明典表示,夏季的午後對流持續性很高,意思是,前一天有午後對流,今天持續發生的機率就很高。

鄭明典透露一個預報經驗法則:「陣雨持續報,見雷加三天」,意思類似,今天有午後對流的陣雨,明天持續發生的機率高,可以持續報;如果不只陣雨,還是雷陣雨,那持續性更高,連續報三天雷陣雨都算合理。

根據氣象署定量降水預報,今雙北地區、桃園宜蘭山區、中南部山區有明顯的降雨訊號,其中雙北地區雨勢恐不小。

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Preguntas abiertas

  • 今日午後雷雨的確切範圍?
  • 紫外線強度具體數值?

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This article was originally published by 自由时报.

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