{"id":600,"date":"2007-01-24T06:00:00","date_gmt":"2007-01-23T22:00:00","guid":{"rendered":"http:\/\/www.weather.org.hk\/blog\/?p=600"},"modified":"2010-11-11T18:22:24","modified_gmt":"2010-11-11T10:22:24","slug":"%e4%bb%8a%e5%a4%a9%e6%97%a9%e4%b8%8a%e4%bd%a0%e8%a6%ba%e5%be%97%e5%86%b7%e5%97%8e%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/www.weather.org.hk\/news\/%e4%bb%8a%e5%a4%a9%e6%97%a9%e4%b8%8a%e4%bd%a0%e8%a6%ba%e5%be%97%e5%86%b7%e5%97%8e%ef%bc%9f\/","title":{"rendered":"\u4eca\u5929\u65e9\u4e0a\u4f60\u89ba\u5f97\u51b7\u55ce\uff1f"},"content":{"rendered":"

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<\/code><\/p>\n","protected":false},"excerpt":{"rendered":"

今天早上你覺得冷嗎？為甚麼天文台好像沒有提示似的？ 今天早上部分地區的最低氣溫如下： 荃灣：9.5度將軍澳：9.7度流浮山、石崗：10.3度上水、打鼓嶺、大埔：10.4度屯門、青衣、沙田、長洲：10.8度坪洲：11.0度赤柱：11.2度西貢：11.3度赤鱲角：11.5度天文台：11.8度黃竹坑：12.1度 天文台的天氣術語中，12度以下稱為「寒冷」，當天文台預料氣溫跌至寒冷水平時便會發出寒冷天氣警告。為甚麼今次他們沒有發出警告呢？原因很簡單，就是他們預報失誤。 天氣變幻莫測，最先進的超級電腦或預報模式都不能準確預測。當實況與預測有差距時，應如何補救？應該即時修正預測（有需要時發出警告），還是盼望實況與預測的差距收窄，讓失誤變得不明顯，再在天氣報告的字眼上下功夫將失誤隱瞞？明顯地天文台選擇了後者： 香港天文台在一月二十四日上午六時四十五分發出之最新天氣報告 東北季候風為華南帶來相當清涼的天氣。本港方面，今早氣溫比昨日低約四度。本港地區今 日天氣預測：早上天氣相當清涼。天晴乾燥。最高氣溫約17度。吹和緩至清勁北風，離岸海 域及高地間中吹強風。  「氣溫低四度」、「相當清涼」都是取巧的字眼。 或者你會說「寒冷天氣警告對我並無意義」，那就好了，至少你不會被天文台誤導，以為警告生效時天氣才會寒冷。但如果警告失去它的意義，為甚麼要保留下來？是浪費公帑嗎？夏天的酷熱天氣警告也有同樣問題，千萬不要以為警告生效時天氣才會酷熱。 或說天文台有一套發出警告的標準，公眾未了解不應批評。去年的「派比安事件」，天文台初說維港風力未達標，後在內部諮詢中改說早已把三號風球界定為「離岸可能吹烈風」，連氣象愛好者也不知道有這個轉變，更何況普通市民。 如果發出警告沒有一套標準，或標準隨時改變，市民的警覺性就會降低，警告就會失去意義。把標準模糊化無疑令出錯的機會減少，但只是自欺欺人的做法，逃不過氣象愛好者的雪亮眼睛，卻苦了依賴警告的一群。<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"advanced_seo_description":"","jetpack_seo_html_title":"","jetpack_seo_noindex":false,"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[4],"tags":[],"class_list":["post-600","post","type-post","status-publish","format-standard","hentry","category-4"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.weather.org.hk\/news\/wp-json\/wp\/v2\/posts\/600","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.weather.org.hk\/news\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.weather.org.hk\/news\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.weather.org.hk\/news\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.weather.org.hk\/news\/wp-json\/wp\/v2\/comments?post=600"}],"version-history":[{"count":1,"href":"https:\/\/www.weather.org.hk\/news\/wp-json\/wp\/v2\/posts\/600\/revisions"}],"predecessor-version":[{"id":719,"href":"https:\/\/www.weather.org.hk\/news\/wp-json\/wp\/v2\/posts\/600\/revisions\/719"}],"wp:attachment":[{"href":"https:\/\/www.weather.org.hk\/news\/wp-json\/wp\/v2\/media?parent=600"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.weather.org.hk\/news\/wp-json\/wp\/v2\/categories?post=600"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.weather.org.hk\/news\/wp-json\/wp\/v2\/tags?post=600"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}