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- In May 2003, a tropical cyclone officially called Very Severe Cyclonic Storm BOB 01 produced the worst flooding in Sri Lanka in 56 years. The first storm of the 2003 North Indian Ocean cyclone season, it developed over the Bay of Bengal on May 10. Favorable environmental conditions allowed the system to intensify steadily while moving northwestward. The storm reached peak maximum sustained winds of 140 km/h (85 mph) on May 13, making it a very severe cyclonic storm according to the India Meteorological Department (IMD), which is the official Regional Specialized Meteorological Center for the basin. The cyclone drifted north over the central Bay of Bengal, gradually weakening due to heightened wind shear. Turning eastward, the storm deteriorated to a deep depression on May 16 before it curved northeastward and re-intensified into a cyclonic storm. It came ashore in western Myanmar and dissipated over land the following day. In the wake of prolonged precipitation during the first half of May, the cyclone produced torrential rains across southwest Sri Lanka while stationary in the central Bay of Bengal. The storm drew extensive moisture that coalesced in the mountainous portion of the island. A station at Ratnapura recorded 366.1 mm (14.41 in) of rainfall in 18 hours on May 17, including 99.8 mm (3.93 in) in one hour. In southwestern Sri Lanka, the rainfall caused flooding and landslides that destroyed 24,750 homes and damaged 32,426 others, displacing about 800,000 people. Overall damage totaled about $135 million (2003 USD), and there were 260 deaths. The cyclone also produced some rainfall in the Andaman and Nicobar Islands of India and along the country's eastern coast. The storm funneled moisture away from the mainland, which possibly contributed to a heat wave that killed 1,900 people, and dropped heavy rainfall in Myanmar. (en)
- 2003年5月，一场正式名称为“第一号特强气旋风暴鲍勃”（Very Severe Cyclonic Storm BOB 01）的热带气旋在斯里兰卡引发56年来最严重的洪涝灾害。系统于5月10日在孟加拉湾上空发展形成，是2003年北印度洋气旋季的首场风暴。由于外界环境有利，系统在向西北方向移动的过程中稳步加强。根据北印度洋盆地区域专责气象中心印度气象局的纪录，气旋于5月13日达到持续风速每小时140公里的最高强度，按标准属特强气旋风暴。气旋在孟加拉湾中部上空向北飘移，因风切变增多而逐渐减弱。风暴转向东进，于5月16日退化成强烈低气压，然后蜿蜒向东北方向移动并重新增强成气旋风暴。系统从缅甸西部登岸，于次日在陆地上空消散。 斯里兰卡5月前半个月里的天气一直很潮湿，气旋在孟加拉湾中部基本停止前进期间又给该国西南部带去倾盆大雨。风暴将大量水分引至该岛山区，产生大量降水。拉特納普勒一处气象站在5月17日的18小时里共测得366.1毫米雨量，其中1个小时里就降下99.8毫米。斯里兰卡西南部共因降雨引发的洪灾和山体滑坡导致2万4750户民宅被毁，另有3万2426套受到一定程度破坏，致使约80万人无家可归。风暴一共造成260人死亡，经济损失约1亿3500万美元。气旋还令印度的安达曼-尼科巴群岛及该国孟加拉湾沿岸地区降下小雨。除此以外，风暴把水分推离印度大陆，可能因此引发旷日持久的热浪，夺走1400人的生命，缅甸也出现暴雨。 (zh)
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- Sri Lanka, India, Myanmar (en)
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- In May 2003, a tropical cyclone officially called Very Severe Cyclonic Storm BOB 01 produced the worst flooding in Sri Lanka in 56 years. The first storm of the 2003 North Indian Ocean cyclone season, it developed over the Bay of Bengal on May 10. Favorable environmental conditions allowed the system to intensify steadily while moving northwestward. The storm reached peak maximum sustained winds of 140 km/h (85 mph) on May 13, making it a very severe cyclonic storm according to the India Meteorological Department (IMD), which is the official Regional Specialized Meteorological Center for the basin. The cyclone drifted north over the central Bay of Bengal, gradually weakening due to heightened wind shear. Turning eastward, the storm deteriorated to a deep depression on May 16 before it curv (en)
- 2003年5月，一场正式名称为“第一号特强气旋风暴鲍勃”（Very Severe Cyclonic Storm BOB 01）的热带气旋在斯里兰卡引发56年来最严重的洪涝灾害。系统于5月10日在孟加拉湾上空发展形成，是2003年北印度洋气旋季的首场风暴。由于外界环境有利，系统在向西北方向移动的过程中稳步加强。根据北印度洋盆地区域专责气象中心印度气象局的纪录，气旋于5月13日达到持续风速每小时140公里的最高强度，按标准属特强气旋风暴。气旋在孟加拉湾中部上空向北飘移，因风切变增多而逐渐减弱。风暴转向东进，于5月16日退化成强烈低气压，然后蜿蜒向东北方向移动并重新增强成气旋风暴。系统从缅甸西部登岸，于次日在陆地上空消散。 (zh)
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- 2003 Sri Lanka cyclone (en)
- 2003年斯里兰卡气旋 (zh)
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