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武清区龙济好么
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发布时间: 2025-05-31 12:13:32北京青年报社官方账号
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With hurricane season in full swing, there's a lot of talk from meteorologists about hurricane "categories." What do they mean, and what do they tell us about a storm?It turns out, a hurricane's category is only based on one thing: wind speed.According to the National Hurricane Center's website, the agency relies on the Saffir-Simpson Hurricane Wind Scale to determine a storm's strength. The scale categorizes a hurricane on a 1-5 scale, based on the storm's maximum sustained winds — the one-minute average of the wind speed taken from inside the storm.When storms over the Atlantic begin to organized into a rotating system around a central "eye," and sustained wind speeds in the storm reach 39 mph, it's classified as a tropical storm. Once wind speeds in the system reach 74 mph, it becomes a hurricane.From there, the NHC uses the Saffir-Simpson Scale to determine how much destruction a hurricane is expected to inflict on an area. While any hurricane is expected to cause damage to homes and topple some trees in its path, higher wind speeds can lead to trees blocking roads and downing power lines, isolating communities without power or access to water for weeks — or even months.STRENGTHMAX SUSTAINED WIND SPEEDDESTRUCTION CATEGORY 1Between 74 mph and 95 mphWell-constructed houses could have damage to roof, shingles, vinyl siding and gutters. Large branches of trees will snap and shallowly-rooted trees may be toppled. Extensive damage to power lines and poles likely will result in power outages that could last a few to several days. CATEGORY 2Between 96 mph and 110 mphHouses could sustain major roof and siding damage. Many shallowly rooted trees will be snapped or uprooted and block roads. Near-total power loss is expected with outages that could last from several days to weeks. CATEGORY 3 (major)Between 111 mph and 129 mphHouses may incur major damage or removal of roof decking and gable ends. Many trees — regardless of root depth — will be snapped or uprooted, blocking roads. Electricity and water will be unavailable for several days to weeks after the storm passes.CATEGORY 4 (major)Between 130 mph and 156 mphHouses can sustain severe damage with loss of most of the roof structure and possibly some exterior walls. Most trees will be snapped or uprooted and power poles will topple. Fallen trees and power poles will isolate residential areas. Power outages will last weeks to possibly months. Most of the area will be uninhabitable for weeks or months.CATEGORY 5 (major)Above 157 mphA high percentage of framed houses will be destroyed, with total roof failure and wall collapse. Fallen trees and power poles will isolate residential areas. Power outages will last for weeks to possibly months. Most of the area will be uninhabitable for weeks or months.Any hurricane that reaches Category 3, with sustained winds above 111 mph, is considered a "major" hurricane. According to the NHC, that's because "of their potential for significant loss of life and damage." But that doesn't mean Category 1 and 2 hurricanes can't be deadly.The NHC itself says that Category 1 and 2 hurricanes are "still dangerous" and "require preventative measures."While Hurricane Sandy peaked at Category 3 intensity when it made landfall in Cuba in 2012, it had collapsed into a post-tropical cyclone by the time it reached New Jersey on Oct. 29. Even though the storm only had Category 1 strength winds, it still resulted in the deaths of 131 people in America, according to media reports, and an estimated billion in damages — the second-costliest hurricane in U.S. history up to that point.The Saffir-Simpson Scale also doesn't take into account storm surge in coastal areas and flash flooding caused by the surge and heavy rain. Flooding can cause significant property damage and make main roads — including expressways — inaccessible. 3864

  武清区龙济好么   

White House aides drafted a fulsome statement for President Donald Trump on the death of Sen. John McCain, but it was never sent out, a person familiar with the matter confirmed to CNN.Several staff members believed the official White House statement, which went through an internal approval process, would be released at the time of the Arizona Republican's death, which occurred on Saturday. But as the President spent Sunday at his Virginia golf course, the statement never went out, the source said.White House aides did not make plans for a televised statement on McCain's passing, which would have been routine under similar circumstances in other recent presidencies.The Washington Post reported Sunday that Trump went against the advice of senior aides to issue an official White House statement praising McCain for his heroism and decades of service, telling aides he instead wanted to post a brief tweet.Trump's tweet Saturday night did not mention his military or Senate service or include any praise for the late Arizona Republican. 1052

  武清区龙济好么   

While not as many Americans are expected to travel for Thanksgiving as usual, 56% of Americans are intending on traveling according to data from Tripadvisor. Tripadvisor says that this year's figures are down from an estimated 70% of Americans travelling in 2019.Tripadvisor surveyed Americans from October 16 to 20, so it is possible increased travel restrictions associated with a rise in cases could scare off some from traveling by Thanksgiving. Many states are telling travelers to quarantine for two weeks before coming into contact with others. The vast majority of those traveling, 76%, say they will drive to their Thanksgiving destination, compared to just 11% who say they will fly.The survey found that 22% are staying in a hotel or vacation rental to practice social distancing from friends and family."Despite COVID-19 concerns, the majority of Americans are still traveling this Thanksgiving. The way in which consumers travel, however, will look very different from past years," said Christopher Hsi, Consumer Market Research Lead Analyst for Tripadvisor. "This year, we can expect shorter trips with smaller groups of people for more intimate, close knit gatherings. Many are taking day trips (24%) or spending one night at their destination. Americans are also continuing to avoid big cities, instead opting for warm weather and beach destinations in southern states. We do see, however, that Boomers are less likely to travel this year compared to last (29% vs. 51%)."Whether Americans can safely travel for the holidays remains up for debate, as many public health experts warn that informal gatherings have contributed to the spread of the virus, which has been killing roughly 1,000 Americans per day in recent days.“Unfortunately, the COVID-19 epidemic is worsening, and small household gatherings are an important contributor to the rise in COVID-19 cases,” the CDC said.The CDC issued guidance for holiday gatherings. Part of the recommendations say masks should be worn at holiday gatherings involving people who are not from the same household, and that guests stay 6 feet apart. The CDC also advises against handshakes and hugs.One public health expert says following these guidelines is dependent on your risk tolerance.“I am very risk tolerant,” Dr. Amesh A. Adalja, a senior scholar at the Johns Hopkins Center for Health Security, said in August. “I am an infectious disease physician. I have taken care of people with the coronavirus. Both of my parents are physicians. I don’t take any special precautious with my parents. I don’t think they take any special precautious with me.“I think physicians might be risk tolerant, but I have not changed my behaviors with people I see regularly, other than if they’re telling me they have a fever, and then I might say ‘stay away’ because I don’t want to be quarantined and not be able to work.”Adalja agrees, however, that there is a risk in attending family gatherings, and while face coverings are effective, they're not a panacea.If you ask Dr. Christopher Murray, the director of the Institute for Health Metrics and Evaluation at the University of Washington, he is opting not to see extended relatives amid the pandemic.“Personally, in our family, we will not have our family get together,” Murrays said about Thanksgiving. “I am particularly cautious. That would be our strategy. Certainly, we have avoided, on a personal level, we have avoided any indoor exposure to friends or family and have restricted any exposure at all to outdoor interaction where we can maintain 6 feet or more.” 3579

  

Wisconsin Republicans moved overnight to strip power from newly elected Democratic leaders, advancing legislation that would limit early voting, enact Medicaid work requirements and potentially block the incoming attorney general from withdrawing the state from a lawsuit over Obamacare.The measures are all expected to be signed by lame-duck Republican Gov. Scott Walker, effectively preventing his successor, Gov.-elect Tony Evers, and Attorney General-elect Josh Kaul from delivering on the promises that lifted them to victory in November.Nearly a day after the legislature's "extraordinary session" began, the state Senate and Assembly concluded their work, passing a raft of legislation designed to curtail authorities enjoyed by Walker and outgoing Republican Attorney General Brad Schimel. Democrats are expected to challenge a number of the measures in court.There is no indication when Walker will take up the legislation, but pending his approval, Wisconsin is now expected to reduce its number of early voting days, restrict gubernatorial influence over a powerful economic agency Evers sought to disband, and require legislative backing for certain decisions traditionally made by the attorney general and governor -- a move that would likely block Kaul from pulling the state out of a federal lawsuit against Obamacare.The legislature will also be able to hire its own lawyers to defend state law in court, diminishing the attorney general's power.During the campaign, both Evers and Kaul took their Republican opponents to task over healthcare issues, in particular the state's participation in the legal challenge which would end coverage protections for people with pre-existing medical conditions. Walker had promised to call a special legislative session to reimplement the rule on a statewide level if the suit succeeded, but questions lingered over how robust those new protections would be. A GOP measure that included lifetime coverage caps was rejected by Senate Democrats and a pair of Republicans early Wednesday.One of the bills passed earlier in the session would require permission from the legislature before the state's executive branch could make waivers or changes to public assistance programs, including work- and drug-testing requirements for "able-bodied" adults, putting into effect Walker's controversial Medicaid work requirements and requiring Evers to get Republican support if he sought to end them.Divided along party lines, the GOP-run state budget committee in Wisconsin had a day earlier advanced many of the controversial measures after less than 12 hours of debate and amid growing protests in and around the capitol in Madison.As the Senate session opened Monday, the public gallery was packed. After some muted laughter, the entire gallery was kicked out -- resulting in more protests."They can only win by cheating. That's what they're doing in there right now," Kathy Kennedy, a state employee who took the day off to protest in Madison, told CNN. "They're a bunch of cowards."Before the committee vote, Evers, in prepared testimony, called the legislation and the process behind it "unfettered attempts to override and ignore what the people of Wisconsin asked for this November.""This is rancor and politics as usual," Evers said. "It flies in the face of democratic institutions and the checks and balances that are intended to prevent power-hungry politicians from clinging to control when they do not get their way."Walker denied on Monday that the moves were a partisan power grab."Much of what we did over the last eight years is work with the Legislature," he told reporters, "not at odds with the Legislature."State Senate Majority Leader Scott Fitzgerald, a Republican, has been more open about the partisan machinations in play."I don't have any problem highlighting that right now," Fitzgerald said on Monday. "I want people to understand that, that there's going to be a divide between the legislative and executive branch."In a statement Tuesday, Democratic Legislative Campaign Committee Executive Director Jessica Post called the GOP lawmakers' actions "shameful.""Just because Republicans in Wisconsin and Michigan don't like the outcome of the election does not give them (the) right to put power over people and disregard the will of the voters," Post said. "After years of voter suppression laws enacted by Republican legislators who were elected on their own gerrymandered lines, this partisan gamesmanship has reached a new low."Republicans are pulling from a playbook popularized in North Carolina two years ago, when Republicans in the Legislature responded to GOP Gov. Pat McCrory's defeat by taking action -- after the election but before his replacement could be sworn in -- to reduce incoming Democratic Gov. Roy Cooper's appointees and require his Cabinet picks to be confirmed by lawmakers.The American Civil Liberties Union excoriated North Carolina Republicans at the time, calling their actions then "a shameful partisan trick." But the lawmakers ignored the backlash and McCrory signed off on a plan to curtail his successor's authorities, setting a precedent for Midwestern Republicans, who suffered heavy defeats in 2018.The-CNN-Wire? & ? 2018 Cable News Network, Inc., a Time Warner Company. All rights reserved. 5314

  

With more than 5 million COVID-19 cases in the United States, the one group that has seen a noticeable rise in infections is children.Over the past four weeks, there has been a 90% spike in known COVID-19 cases among children in the U.S., according to the American Academy of Pediatrics and the Children's Hospital Association."While children represented only 9.1% of all cases in states reporting cases by age, over 380,000 children have tested positive for COVID-19 since the onset of the pandemic," the association wrote in a report. Although, we're seeing more American kids being diagnosed with COVID-19, the mortality rate remains relatively low compared to adults. The association says children represented 0% to 0.4% of all COVID-19 deaths, and 19 states reported zero child deaths. In states reporting, 0% to 0.5% of all child COVID-19 cases resulted in death.Public health officials have warned about opening schools in states with COVID-19 hot-spots. Medical experts say having youth in crowded hallways and classrooms poses a significant threat.There are currently 800 students in Georgia's Cherokee County that are in quarantine due to possible coronavirus exposure. This is just one week after in-person learning began.Some health experts like Michael Osterholm, a director at the Center for Infectious Disease Research and Policy, are concerned another big spike in cases is on the way."We think we're going to see an explosion of cases in September that will far surpass what we saw after Memorial Day and this is just going to continue increasing, getting higher and higher in terms of numbers," said Osterholm.Researchers say an effective testing strategy would help communities properly determine if and when to reopen schools for in-person teaching.This story was originally published by Julia Varnier at WTKR. 1838

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