鋒面20日到 不只解渴恐還釀災 - 颱風討論

By Gilbert
at 2015-05-16T16:15
at 2015-05-16T16:15
Table of Contents
〔記者黃立翔、蔡穎、黃旭磊/綜合報導〕
颱風「白海豚」自動轉彎不來了,使得台灣今起到下週二持續高溫炎熱;但下週三(
廿日)起,滯留鋒伴隨西南季風,中央氣象局及氣象學者警告可能出現「致災」等級的超
大雨量,影響恐延續至下週日!
高雄下週不限水 供五停二暫停
另一方面,由於水情可能一夕翻轉!水利署決定高雄地區下週二、三仍不停水,這是
五月以來,高雄市第三次暫緩實施限水,工廠業者與民眾都鬆了口氣;但也因這道鋒面,
全國抗旱作戰恐轉為全面防汛。
昨天下午,台東大武吹起焚風,氣溫高達卅五.二度,今起到下週二,東南部也會出
現焚風。中央氣象局預報員林智暉說,今起到下週一,各地上午多為多雲到晴天氣,與昨
天類似,有機會出現卅二到卅四度高溫,東半部山區午後有零星短暫陣雨;週日到下週二
,鋒面位於台灣北部海面,水氣微增。
下週三起 滯留鋒面將帶來水氣
下週三起,滯留鋒面結構完整,伴隨西南季風,將帶來大規模水氣籠罩全台,各地都
有可能發生局部大雨或豪雨,中部以北、東北部地區及南部山區也會有陣雨或雷雨。林智
暉說,由以往經驗,五、六月的鋒面若伴隨西南季風或西南氣流,雨勢都很大。
中央大學大氣系副教授吳德榮在網路專欄發出警告,滯留鋒及西南季風廿日將抵台,
對流胞及中尺度對流系統很容易在這種環境下生成發展,伴隨雷擊、強風、瞬間大雨、冰
雹等災變天氣快速通過,降雨可能致災;廿日到廿二日都是梅雨活躍期,接下來三到五天
也可能繼續下雨。
吳德榮補充,第七號颱風白海豚十八日可能在日本南方海面大轉彎,台灣與日本都不
受颱風影響;但因颱風抑制高壓偏向台灣,十八日之前,氣溫可能達卅四度、甚至卅五度
。下週二起,西南沿海開始有局部陣雨,下週二晚上到下週五就將進入「梅雨活躍期」。
水利署主秘賴建信表示,高屏溪昨上午流量為每秒十一.四立方公尺,且下降速率趨
緩,經討論決定高雄市下週二、三暫緩實施停水;但因河川流量仍低,象徵三階限水的「
紅色」警戒燈號仍不調整。
預防一夕翻轉 將動態檢討水情
南水局副局長連上堯說,台南南化水庫出水量近期已控制在每天卅萬噸附近,將繼續
維持二階限水,下週鋒面通過再依實際降雨情形動態檢討水情,基本上,「台南水情比高
雄還樂觀」。
連上堯說,為預防水情一夕翻轉,除了與自來水公司討論南化—高屏溪攔河堰聯通管
路充水,另盤點伏流水井備援,避免高屏溪溪水因濁度上升而出現取水缺口。
http://news.ltn.com.tw/news/life/paper/880633
(自由時報 2015-05-16)
--
颱風「白海豚」自動轉彎不來了,使得台灣今起到下週二持續高溫炎熱;但下週三(
廿日)起,滯留鋒伴隨西南季風,中央氣象局及氣象學者警告可能出現「致災」等級的超
大雨量,影響恐延續至下週日!
高雄下週不限水 供五停二暫停
另一方面,由於水情可能一夕翻轉!水利署決定高雄地區下週二、三仍不停水,這是
五月以來,高雄市第三次暫緩實施限水,工廠業者與民眾都鬆了口氣;但也因這道鋒面,
全國抗旱作戰恐轉為全面防汛。
昨天下午,台東大武吹起焚風,氣溫高達卅五.二度,今起到下週二,東南部也會出
現焚風。中央氣象局預報員林智暉說,今起到下週一,各地上午多為多雲到晴天氣,與昨
天類似,有機會出現卅二到卅四度高溫,東半部山區午後有零星短暫陣雨;週日到下週二
,鋒面位於台灣北部海面,水氣微增。
下週三起 滯留鋒面將帶來水氣
下週三起,滯留鋒面結構完整,伴隨西南季風,將帶來大規模水氣籠罩全台,各地都
有可能發生局部大雨或豪雨,中部以北、東北部地區及南部山區也會有陣雨或雷雨。林智
暉說,由以往經驗,五、六月的鋒面若伴隨西南季風或西南氣流,雨勢都很大。
中央大學大氣系副教授吳德榮在網路專欄發出警告,滯留鋒及西南季風廿日將抵台,
對流胞及中尺度對流系統很容易在這種環境下生成發展,伴隨雷擊、強風、瞬間大雨、冰
雹等災變天氣快速通過,降雨可能致災;廿日到廿二日都是梅雨活躍期,接下來三到五天
也可能繼續下雨。
吳德榮補充,第七號颱風白海豚十八日可能在日本南方海面大轉彎,台灣與日本都不
受颱風影響;但因颱風抑制高壓偏向台灣,十八日之前,氣溫可能達卅四度、甚至卅五度
。下週二起,西南沿海開始有局部陣雨,下週二晚上到下週五就將進入「梅雨活躍期」。
水利署主秘賴建信表示,高屏溪昨上午流量為每秒十一.四立方公尺,且下降速率趨
緩,經討論決定高雄市下週二、三暫緩實施停水;但因河川流量仍低,象徵三階限水的「
紅色」警戒燈號仍不調整。
預防一夕翻轉 將動態檢討水情
南水局副局長連上堯說,台南南化水庫出水量近期已控制在每天卅萬噸附近,將繼續
維持二階限水,下週鋒面通過再依實際降雨情形動態檢討水情,基本上,「台南水情比高
雄還樂觀」。
連上堯說,為預防水情一夕翻轉,除了與自來水公司討論南化—高屏溪攔河堰聯通管
路充水,另盤點伏流水井備援,避免高屏溪溪水因濁度上升而出現取水缺口。
http://news.ltn.com.tw/news/life/paper/880633
(自由時報 2015-05-16)
--
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