Black Rainstorm Warning Signal was issued at 11:45 p.m. on 4 August
Extreme
Now
From Monday 23:45 (31 minutes ago)
Until further notice
Official warning explanations:

The Rainstorm Warning Signal is now Black. This means that heavy rain has fallen or is expected to fall generally over Hong Kong, exceeding 70 millimetres in an hour, and is likely to continue.

Instructions:

Because of seriously flooded roads and inclement weather conditions, you are advised to take shelter in a safe place and stay there. Parents, students, school authorities and school-bus drivers should listen to radio or television announcements on schools. Do not attempt to travel until the Black Rainstorm Warning Signal is no longer in force and traffic conditions have improved. Heavy rain will bring flash floods, and flooding is occurring or is expected to occur in watercourses. People should stay away from watercourses. Residents living in close proximity to rivers should stay alert to weather conditions and should consider evacuation if their homes may become flooded. Please listen to radio or watch television for traffic conditions and further announcements on the rainstorm.

黑色暴雨信號在8月4日下午11時45分發出。
Extreme
Now
From Monday 23:45 (31 minutes ago)
Until further notice
Official warning explanations:

暴雨警告信號現時為黑色,表示香港廣泛地區已錄得或預料會有每小時雨量超過70毫米的大雨,且雨勢可能持續。

Instructions:

由於道路嚴重水浸及天氣情況惡劣,市民應留在安全地方暫避。家長、學生、學校當局及校車司機均應留意電台及電視台有關學校的公布。在黑色暴雨警告仍然生效及交通情況未改善之前,不應外出。 受大雨影響,會有山洪暴發,並且河道已經氾濫或可能會氾濫,市民應遠離河道。河道附近的居民應密切留意天氣情況,如住所可能出現水浸,應考慮撤離。 請留意電台或電視台廣播有關交通情況及其他有關暴雨消息之報告。

Last update:
Language:
Thunderstorm Warning issued at 7:55 p.m. on 4 Aug 2025 has been extended until 3:00 a.m. tomorrow.
Severe
Now
From Monday 23:30 (46 minutes ago)
Until Today 03:00 (2 hours from now)
Official warning explanations:

Squally thunderstorms are expected to occur over Hong Kong.

Instructions:

Members of the public are advised to take the following precautions when thunderstorms occur: 1. Seek safe shelter if you are staying outdoors. 2. Leave the water. Do not swim outdoors or engage in other outdoor water sports. 3. Do not stand on high grounds. Keep away from highly conductive objects, trees or masts.

天文台在8月4日下午7時55分發出之雷暴警告,有效時間延長至明日上午3時正。
Severe
Now
From Monday 23:30 (46 minutes ago)
Until Today 03:00 (2 hours from now)
Official warning explanations:

預料香港有狂風雷暴。

Instructions:

雷暴發生時,請採取以下預防措施: 1. 如身處室外,請到安全地方躲避。 2. 離開水面。切勿在戶外游泳或進行其他戶外水上運動。 3. 切勿站立於高地或接近導電的物體、樹木或桅杆。

Last update:
Language:

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