Under the influence of extremely hot weather and prolonged heat, members of the public should stay on the alert, drink more water and take all necessary protective measures against the heat to prevent discomforts caused by very hot weather, and pay due attention to physical conditions. If symptoms such as dizziness, headache, nausea, shortness of breath or confusion develop, take rest and seek help immediately, and seek medical advice as soon as possible.
Elderly persons, pregnant women, infants and children, those with chronic illnesses, such as heart disease or high blood pressure, as well as the obese are more vulnerable to heat stroke. Watch out for any symptoms of heat stroke. Under extremely hot weather, beware of health conditions, ensure adequate rest, maintain normal body temperature, and avoid overheating of the body. When engaged in work under hot weather or high-temperature environments, please refer to the Guidance Notes on Prevention of Heat Stroke at Work of the Labour Department and take necessary precautions. When engaged in outdoor activities, drink more water and avoid over exertion. If not feeling well, take a rest in the shade or cooler place as soon as possible. Perform outdoor activities in the morning or late afternoon as far as possible. Under extremely hot weather, vigorous physical activities should be avoided. During indoor activities, replenish water timely. If there is no air-conditioning, then windows should be kept open and fans be used as far as possible to maintain adequate indoor ventilation. Public facilities with heat sheltering may also be used. Avoid prolonged exposure under sunlight. Light-coloured and air-permeable clothing, a wide-brimmed hat that covers the back of your neck and ultraviolet (UV) blocking sunglasses can reduce the chance of sunburn by solar UV radiation. Choose a broad-spectrum water-resistant sunscreen product with a sun protective factor (SPF) of 30 or higher when doing outdoor activities and apply liberally; reapply every two hours if you need to stay outdoors for a prolonged period, or after swimming, sweating or towelling off. Beware of health and wellbeing of elderly or persons with chronic medical conditions. If you know of them, call or visit them occasionally and check whether their household ventilation and air-conditioning devices function properly. Those more vulnerable to heat stroke should avoid outdoor activities and stay away from hot environment as far as possible. Stay in cool, well-ventilated or air-conditioned places.
本港受極端酷熱天氣影響，而且高溫天氣持續，市民應提高警惕，多補充水分及做足防暑措施，慎防因酷熱而引起不適，並需留意身體狀況。若出現頭暈、頭痛、噁心、氣促及神志不清等徵狀，應立刻休息和求助，並儘快求醫。
長者、孕婦、嬰兒及小童、慢性病如心臟病或高血壓患者，以及過胖人士均較易中暑，應及時觀察是否出現中暑徵兆。在極端酷熱天氣下，更應時常留意身體健康狀況，確保有充分休息，保持體溫正常，避免身體過份受熱。 在炎熱天氣下或高溫環境中工作的人士，請參照勞工處的預防工作時中暑指引，採取所需的防暑措施。 在戶外活動的人士，應多補充水分和不要過度勞累。於感覺不適時，應儘快到陰涼的地方休息。戶外活動儘可能安排在早上或下午較後的時間進行。在極端酷熱天氣下，應避免劇烈運動。 在室內活動時，亦應適時補充水分。如室內沒有空調設備，應儘量打開窗戶及以風扇保持空氣流通，亦可使用可供避暑的公共設施。 避免長時間在陽光下曝曬，以免受太陽紫外線曬傷。應穿上淺色和通爽衣服，配戴可遮掩後頸的闊邊帽子和能阻隔紫外線的太陽眼鏡。 最好選擇防曬系數（SPF）30或以上的廣譜及防水的防曬產品並大量塗抹，如需長時間在戶外逗留，或在游泳、流汗或以毛巾抹身後，謹記須每兩小時再次塗上防曬產品。 請關注長者或慢性病患者的健康狀況。如認識他們，請間中致電或探訪他們，並留意他們住所的通風及空氣調節設備是否運作正常。 較易中暑人士應儘量避免戶外活動，遠離高溫環境，到陰涼、通風或有空氣調節的地方。
Here is the latest Tropical Cyclone Warning Bulletin issued by the Hong Kong Observatory. The Standby Signal, No. 1 is in force. This means that a tropical cyclone now centred within about 800 kilometres of Hong Kong may affect us. At 1 p.m., Typhoon Danas was estimated to be about 460 kilometres east of Hong Kong (near 22.0 degrees north 118.6 degrees east) and is forecast to move northeast or north-northeast at about 10 kilometres per hour in the general direction of the vicinity of Taiwan Strait to the western coast of Taiwan.
一號戒備信號，現正生效。 表示有一熱帶氣旋，在香港約800公里內，可能影響本港。 在下午1時，颱風丹娜絲集結在香港以東約460公里，即在北緯22.0度，東經118.6度附近，預料向東北或東北偏北移動，時速約10公里，大致移向台灣海峽至台灣西部沿岸一帶。
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