Hong Kong was hit by more than 4,500 lightning strikes in two hours early yesterday - including 800 in a minute, according to one weather-monitoring group. The display of pyrotechnics came as a violent thunderstorm, a byproduct of Typhoon Haitang further north, rolled across the city with deafening bursts of thunder and torrential rain. It was accompanied by power cuts in some areas. But far from bringing relief from the searing temperatures of the previous day, the storm left in its wake another hazy, even hotter day with the promise of more storms. The Observatory recorded a maximum temperature of 35.4 degrees Celsius at its Tsim Sha Tsui headquarters, a full degree higher than on Monday, a new high for the year and the second-highest July temperature on record. For a second day, temperatures elsewhere were as high as 37 degrees, and a record 39 degrees in Macau. The Observatory said there were 4,593 lightning strikes between 1am and 3am, or 38 a minute. CLP Power's lightning monitoring stations, which operate to protect outdoor workers, recorded more than 5,500 lightning strikes between 11.30pm on Monday and 3.30am yesterday. Weather Underground of Hong Kong said it recorded more than 800 strikes in one minute at about 2am. The amber rain signal was hoisted from 2.05am to 3.15am. Cheng Heung-lung, 16, who lives in Hunghom and who took pictures of the lightning, said he saw a powerful bolt hitting the sea off Taikoo Shing. 'The lightning strikes came one after the other and I simply couldn't capture them all,' he said. More than 1,200 households in five blocks at Oi Man Estate, Hunghom, suffered a power failure for nearly two hours. The Housing Authority said it was caused by the lightning but CLP Power said it had no conclusive evidence on this. A CLP spokeswoman said a village in Yuen Long was plunged into darkness for 90 minutes, which could also have been connected to the lightning. There were also reports of power failures elsewhere in the New Territories.