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'Super fog' causes deadly multi-car pileup on Louisiana highway: Police_我的网站

一 | A "super fog" in Louisiana has caused a multi-car pileup on Interstate 55 near New Orleans, Louisiana, after severely lowering visibility, according to police.The crash, involving dozens of cars, occurred on Monday morning due to heavy fog conditions, according to Louisiana State Police. A long stretch of Interstate 55, a 24-mile-long highway over Lake Pontchartrain near New Orleans, is expected to be closed "for the foreseeable future," police said.Interstate 10 and Interstate 310 were also closed as a result of the crash, police said. Louisiana Gov. John Bel Edwards confirmed the accident in a statement Monday that there were fatalities in the crash, but did not say how many people were killed or injured.For hours after the crash, emergency crews worked to clear debris from both northbound and southbound lanes, according to state police.The super fog was caused by smoke from marsh fires burning in the region combined with dense fog developing in the area early Monday morning bringing extremely low visibility. In some spots, visibility was near zero, creating dangerous driving conditions.Super fogs typically form when condensed water vapor mixes with the smoke and moisture released from damp organic material smoldering from a nearby fire, such as brush, leaves and trees, according to the National Weather Service. Visibility can be lowered to less than 10 feet as a result, according to the NWS.This has been occurring in the region over the past several mornings, with the location of the densest fog and most dangerous conditions varying day to day, forecasts show.Super fogs can be especially dangerous when they develop near and over highways. The localized nature of the weather phenomenon means that visibility conditions can worsen rapidly within a very short distance, which can lead to a hazardous combination of sudden low to near-zero visibility and vehicles traveling at a high speed on a highway.The very limited visibility then hinders a driver's ability to react to changing conditions on a roadway.The National Weather Service issued a dense fog advisory for much of southeastern Louisiana on Monday morning, including from Baton Rouge to New Orleans.Over the past several days, the National Weather Service has been warning of the threat of dense fog during the early mornings in the region that would be worsened in some areas by nearby marsh fires. State police advised drivers to use their low-beam headlights if they can't see at least 500 feet in front of them.The fog dissipated by mid Monday morning, and all fog alerts have since been canceled.While areas of smoke will continue to be possible in the area as various marsh fires continue to burn, fog is not forecast to be a major issue Monday night, as weather conditions will be less favorable for fog development.Morning fog is not uncommon this time of the year for the region, but more than 86% of the state is currently battling extreme drought conditions, which is elevating fire danger. This could mean more instances of super fog in the coming days and weeks as cooler temperatures settle in, but the drought and wildfire risk persist.In addition, devastating drought and wildfire conditions continue to impact Louisiana. More than 60% of the state is now categorized at exceptional drought, the highest category of concern, according to the U.S. Drought Monitor. Just three months ago, 0% of the state was listed under exceptional drought."The combination of wildfire smoke and dense fog is dangerous, and I want to encourage all Louisianans in affected areas to take extreme caution when traveling," Edwards said in a statement.State troopers are working to notify families and investigate the exact cause of the crash, according to state police.It is unclear how many fatalities and injuries occurred as a result of the crash. The St. John the Baptist Parish Sheriff's Office directed media requests to Louisiana State Police.Additional information was not immediately available. Louisiana State Police did not immediately reply to ABC News' request for comment.。　　全球燃料正处于供应短缺的困境中，这与中东和俄乌炼油厂产能大幅下降有着直接的关系。

二 | 　　为了填补这一供应空白，全球其他地区的炼油厂正在提高产能。其中，美国炼油厂已连续数月满负荷运转，其燃料出口量也屡创新高。但作为重要支撑的美国炼油业即将迎来新的挑战。　　Rystad Energy本周表示，由于油砂矿的维护作业，加拿大9月份原油日产量可能减少30万桶。

三 | 加拿大石油生产商一般每天向美国炼油厂供应400万桶重质原油，但下个月起加拿大所有的主要油砂运营商都将减产进行维护。　　通常情况下，每当出现这种季节性供应中断时，美国地区的库存原油会先行补齐供应，但报告显示，美国原油库存也低于往常水平，为12个月以来最低。

四 | 　　来自委内瑞拉的石油供应似乎是一个替代方案，但业内指出，委内瑞拉的石油增产速度不及预期，且此前该国的原油出口量增长很大程度上是因为该国动用了原油库存，这代表委内瑞拉的石油产量实际上未能实现增长。　　多重不利因素　　7月，委内瑞拉对该美国的石油日均出口量为78.6万桶，为2019年初以来的最高水平，远高于2026年1月美国尚未控制该国石油工业时的日均28.4万桶。

五 | 　　然而，所有曾经在委内瑞拉运营的大型石油公司都持谨慎态度，迟迟不愿决定是否重返委内瑞拉，因为委内瑞拉尚未拥有稳定的政治和财政环境，难以开展大规模石油作业。

六 | 　　近几个月来，仅有一些服务供应商和规模较小的美国石油公司签署了一些协议。总而言之，这导致委内瑞拉的石油生产复苏比预期慢得多。　　与此同时，乌克兰无人机继续袭击俄罗斯炼油厂，导致俄罗斯的汽油和柴油产量受到挤压。8月中旬，柴油裂解价差历史上首次突破每桶100美元。　　此外，尽管美国宣传霍尔木兹海峡正大量流出原油，但该航道几乎没有成品油轮驶出。据法国能源巨头道达尔称，这主要是因为成品油轮运力较小，运费已高达每桶50美元，导致没有贸易商愿意承担运输成本，从而加剧了燃料供应紧张的问题。