Hurricane Polo becomes a rare Category 5 monster after extreme rapid intensification飓风波罗在经历极度快速增强后，成为罕见的五级飓风。
It become one of the fastest intensifying storms on record as El Niño fuels a hyperactive Pacific hurricane season.
Hurricane Polo became a rare Category 5 on Tuesday morning after undergoing extreme rapid intensification off the Pacific coast of Mexico.
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Polo had 160 mph maximum sustained winds and was a few hundred miles south-southeast of Manzanillo, Mexico, as of Tuesday morning. Its dangerous hurricane-force winds are forecast to remain offshore from the Mexican coast as it moves northwestward parallel to the coastline through the end of the week.
Extreme rapid intensification is a wind increase of 58 mph or more in 24 hours. Polo met that criteria and then some, with a wind increase of 110 mph in 24 hours.
This rate of rapid intensification is “truly remarkable,” the National Hurricane Center said on Tuesday morning, and is among the fastest on record in the Eastern Pacific.
Hurricane Patricia set the Eastern Pacific 24-hour intensification record in 2015 when its winds jumped 120 mph. Polo’s intensification is comparable to 2023’s Hurricane Otis , which had a wind increase of 105 mph in 21 hours before slamming into and devastating Acapulco.
Polo’s intensification has been fueled in part by extremely warm Pacific Ocean water near the Mexican coast that has been untouched by any storms so far this year.
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El Niño events are becoming stronger as the world warms
El Niño is also driving up ocean temperatures in the Pacific and fueling a hyperactive hurricane season there. More hurricanes are also rapidly intensifying as Earth and its oceans warm from fossil fuel pollution.
The powerful hurricane is moving southeastward right now, but it’s expected to turn to the northwest on Tuesday night.
El Niño has broken Atlantic hurricanes. Now the season is breaking records
A tropical storm watch is in effect for the southwest Mexico coast from Tecpán de Galeana to Manzanillo since this area could still experience tropical storm conditions by early Wednesday. Heavy rain is Polo’s most significant impact. It could cause life-threatening flooding and mudslides in southwest Mexico. Rainfall totals in Guerrero and Michoacán states could reach 4 to 8 inches, with locally up to 12 inches in spots through Thursday. Coastal portions of Oaxaca, Colima and Jalisco states could see 3 to 6 inches of rain.
飓风波罗在墨西哥太平洋沿岸经历了极快的强度增强后，于周二上午升级为罕见的五级飓风。
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截至周二上午，飓风“波罗”的最大持续风速为每小时160英里，位于墨西哥曼萨尼约东南偏南数百英里处。预计其危险的飓风级强风将持续在墨西哥近海，并沿海岸线向西北方向平行移动，直至本周末。
极端快速增强是指24小时内风速增加58英里/小时或以上。波罗飓风不仅符合这一标准，而且风速在24小时内增加了110英里/小时。
美国国家飓风中心周二上午表示，这种快速增强的速度“确实非同寻常”，是东太平洋有记录以来最快的增强速度之一。
2015年，飓风帕特里夏创下了东太平洋24小时内风速飙升120英里/小时的纪录。波罗飓风的强度与2023年的飓风奥蒂斯相当，奥蒂斯在袭击并重创阿卡普尔科之前，21小时内风速增加了105英里/小时。
波罗飓风的增强部分原因是墨西哥海岸附近太平洋海域水温异常温暖，而今年到目前为止，该地区尚未受到任何风暴的影响。
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随着全球变暖，厄尔尼诺现象变得越来越强烈。
厄尔尼诺现象也导致太平洋海温升高，加剧了该地区飓风的活跃程度。随着化石燃料污染导致地球及其海洋变暖，越来越多的飓风也在迅速增强。
这场威力强大的飓风目前正向东南方向移动，但预计将于周二晚间转向西北方向。
厄尔尼诺现象已经扰乱了大西洋飓风的规律。如今，飓风季正在打破各项纪录。
墨西哥西南部沿海地区，从特克潘德加莱亚纳到曼萨尼约一带，已发布热带风暴预警，因为该地区周三清晨仍可能出现热带风暴天气。强降雨是波洛带来的最主要影响，可能在墨西哥西南部引发危及生命的洪水和泥石流。格雷罗州和米却肯州的降雨量可能达到4至8英寸，局部地区周四之前降雨量可能高达12英寸。瓦哈卡州、科利马州和哈利斯科州的沿海地区降雨量可能达到3至6英寸。