the column weighs less and so the force it is exerting on the ground, the pressure, gets lower. hence, low pressure. nearthe ground, air rushes in to replace what is lost higher up, and the area of low pressure rotates more and more quickly. and as the process continues, the storm is able to deepen explosively. on a weather chart, you will see more and more isobars appearing, like a dartboard, and if the pressure falls by at least 2a millibars in 2a hours, that is explosive cyclogenesis, or a weather bomb. weather bombs like storm eunice are not that unusual. but it is when explosive cyclogenesis happens near land their impact can be extreme. eunice s winds were so strong they shredded part of the fabric roof of london s o2 arena, which opened as the millennium dome 22 years ago. dudley was the first of the three named storms to hit the uk injust one week in february. even a wind turbine
in the future, they will no longer be unprecedented they will be something more like normal. now, that is not to say that they will occur every single summer because especially in australia, we can flip from really dry conditions to really wet conditions within a matter of a couple of years but these events will look less extreme and more closer to normal because of how extreme future events will be. february in madagascar and cyclone batsirai is the second of five tropical weather systems to impact the island so far this year. thousands have lost their homes. entire villages have been swept away. many people have died. cyclones, the same type of storm as hurricanes, occur from november to april here. some go on to make landfall in mozambique, with flooding rains spreading into neighbouring countries, including malawi. madagascan livah rabearison works for a charity helping people in the aftermath of the cyclones, which he says have had a devastating impact. translation: this yea
has deepened and strengthened quickly and dramatically, something meteorologists call explosive cyclogenesis. now, imagine a column of air from the ground up to the level of the jet stream at around 30,000 feet or so. a disturbance in the powerful jet stream forces the air aloft to accelerate away, removing air from the top of the column. the column weighs less and so the force it is exerting on the ground, the pressure gets lower. hence, low pressure. near the ground, air rushes in to replace what is lost higher up, and the area of low pressure rotates more and more quickly. and as the process continues, the storm is able to deepen explosively. on a weather chart, you will see more and more isobars appearing, like a dartboard, and if the pressure falls by at least 2a millibars in 2a hours, that is explosive cyclogenesis, or a weather bomb. weather bombs like storm eunice are not that unusual. but it is when explosive
fairly regularly, you know, maybe a couple of times in a decade, but the extremity of it, that is that i wouldn t say it s a surprise but that is the most concerning factor that we have gone from literally the south east of australia burning to literally, the south east of australia flooding. so, the extremes that we have seen of lately, while they have been unprecedented, currently speaking, in the future, they will no longer be unprecedented they will be something more like normal. now, that is not to say that they will occur every single summer because especially in australia, we can flip from really dry conditions to really wet conditions within a matter of a couple of years but these events will look less extreme and more closer to normal because of how extreme future events will be. february in madagascar and cyclone batsirai is the second of five tropical weather systems to impact the island so far this year. thousands have lost their homes. entire villages have been s
but it wasn t seafaring weather in february when the island set a new record for england s strongest wind gust during a remarkable spell of stormy weather across the uk. a driver s worst nightmare caught on dashcam a lorry overturns in extreme winds in oxfordshire during storm eunice, the second and most powerful of three named storms to hit the uk in just one week. thankfully, the driver wasn t seriously hurt. another lucky escape in london, which was covered for the first time by a red weather warning. falling trees caused damage and widespread travel disruption, many people filming the storm s disruption themselves. man: oh, my god! i caught that on video! and even falling steeples an unusual impact of the storm in somerset. an unlikely beneficiary of the storm livestreaming of planes battling the winds as they landed at heathrow attracted thousands of new viewers. and here on the coast of the isle of wight, almost invisible in the sea