Sydney homes flooded and infrastructure damaged as swell combined with king tide to batter the coast
Several homes were evacuated at Botany Bay in Sydney's south around midnight as waves surged across the coast, according to New South Wales State Emergency Service spokesman Andrew Edmunds.
Further north at Sydney's premier Bondi Beach, the coast was lashed by a 5.5-meter (18-foot) swell, officials said.
Windows were shattered at Bondi Icebergs Swimming Club, a waterfront pool, gymnasium and restaurant complex. CCTV footage showed waves bursting through glass doors after 11 p.m. on Tuesday.
'It has just been devastating,' club general manager Bob Tate said. 'I've been a member for 50 years at Bondi. I've never seen this sort of thing before. You know, the sheer magnitude of the level of water and the power of the water coming through must've just been horrendous.'
Tate added that on the pool deck around 15 glass panels were splintered, floors were damaged, and cupboards and firehoses were ripped off the walls. It was 'quite extraordinary,' he said.
South of Botany Bay at Cronulla Beach, lifeguard Steve Winner said the beach, along with parts of the pavement behind it and electrical infrastructure, had been damaged by 4-meter (13-foot) waves.
Authorities warned on Thursday of further hazardous surf with the potential to cause coastal erosion and damage from the Illawarra region south of Sydney to the Hunter region north of Sydney.
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One typically lasts from June to September, with rains moving southwest to northeast. The other, from roughly October to December, moves in the opposite direction. But with more planet-warming gases in the air, the rain now only loosely follows this pattern. This is because the warmer air can hold more moisture from the Arabian Sea and Indian Ocean, and that rain then tends to get dumped all at once. It means the monsoon is punctuated with intense flooding and dry spells, rather than sustained rain throughout. The combination of moisture, mountains and monsoons force these moisture-laden winds upward, triggering sudden condensation and cloudbursts. They are hard to predict, but precaution is possible It's difficult to predict cloudbursts because of their size, duration, suddenness and complex atmospheric mechanisms. Asfandyar Khan Khattak, a Pakistani official from the northwest province of Khyber Pakhtunkhwa, said there was 'no forecasting system anywhere in the world' that could predict the exact time and location of a cloudburst. The Pakistani government said that while an early warning system was in place in Buner district, where hundreds of people died after a cloudburst, the downpour was so sudden and intense that it struck before residents could be alerted. Community organization SOST, which is also the name of a border village in Pakistan's northern Gilgit-Baltistan region, says precautions are possible. It advises people to avoid building homes right next to rivers and valleys, to postpone any travel to hilly areas if heavy rain is forecast, to keep an emergency kit ready, and to avoid traveling on mountainous roads during heavy rain or at night. It recommends afforestation to reduce surface runoff and enhance water absorption, and regular clearing and widening of riverbanks and drainage channels. Climate change is fueling their frequency Experts say cloudbursts have increased in recent years, partly due to climate change, while damage from associated storms has also increased due to unplanned development in mountain areas. Climate change has directly amplified the triggers of cloudbursts in Pakistan, especially. Every 1°C rise allows the air to hold about 7% more moisture, increasing the potential for heavy rainfall in short bursts. The warming of the Indian Ocean and Arabian Sea pushes more moisture into the atmosphere. Melting glaciers and snow alter local weather patterns, making rainfall events more erratic and extreme. Environmental degradation, in the form of deforestation and wetland loss, reduces the land's ability to absorb water, magnifying flash floods. Climate change has been a central driver in the destruction seen in Pakistan's northern areas. 'Rising global temperatures have supercharged the hydrologic cycle, leading to more intense and erratic rainfall,' said Khalid Khan, a former special secretary for climate change in Pakistan and chairman of climate initiative PlanetPulse. 'In our northern regions, warming accelerates glacier melt, adds excessive moisture to the atmosphere, and destabilizes mountain slopes. In short, climate change is making rare events more frequent, and frequent events more destructive.'
