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天氣｜天文台：周末評估是否發一號信號 料屆時驟雨增多及有狂風雷暴
即時港聞
發佈： 2026-08-19 23:53
撰文： 無綫新聞
天文台表示，位於南海北部的低壓區，橫過海南島後有機會轉向東移，周末時會評估是否需要發出一號戒備信號。
受低壓區及高壓脊共同影響，廣東沿岸風勢較大及有驟雨，本港晚上多處吹強風。
天文台指，低壓區的結構較為鬆散，仍未發展成熱帶氣旋。按照現時預測會遠離本港，周四橫過海南島，但之後移動方向有較大變數，有可能轉向東移，周末時靠近廣東沿岸，預料周末至下周初天氣不穩定，驟雨增多及有狂風雷暴。
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