The National Oceanic and Atmospheric Administration’s tide

Climate change is making storms like Barry worse

Follow CNNLast year canada goose outlet uk was the hottest on record for canada goose manchester uk the Earth’s oceans, with a record high for global heat content in the upper 2,000 meters of the oceans, which broke the record from the year before.”The heat fuels storms of all sorts and contributes to very heavy rain events and flooding,” Trenberth said.”The observed increases of upper (ocean heat content) support higher sea surface temperatures and atmospheric moisture, and fuel tropical storms to become more intense, bigger and longer lasting, thereby increasing their potential for damage.”A pickup is submerged in floodwaters in Lumberton, North Carolina, in Hurricane Florence’s aftermath.Warmer oceans mean more moisture is available in a warmer atmosphere.”It’s one of the simplest relationships in all of meteorology,” said Michael Mann, professor canada goose london uk of atmospheric science and director of the Earth System Science Center canada goose outlet england at Pennsylvania State University.For every 1 degree Celsius (1.8 degree Fahrenheit), there is 7% more moisture in the air. Ocean temperatures around Florence trended 1.5 degrees C (2.7 degrees F) warmer than normal, contributing to about 10% more moisture cheap canada goose available in the atmosphere.This certainly helped make Florence the wettest tropical system to strike the US East Coast, dumping almost 3 feet of rain on parts of North Carolina.Higher sea levels, higher surgeFlorence brought the tides to record levels in portions of North Carolina last September despite having weakened to a Category 1 storm, with peak winds of 90 mph.The National Oceanic and Atmospheric Administration’s tide gauge at Wrightsville Beach, North Carolina, surged more than 4 feet above the normal high as the storm was making landfall, breaking a record set by Hurricane Joaquin in 2015 by more than a foot.Several factors combined to make Florence such a prolific coastal flood threat. Its large size, slow movement and previous Category 4 intensity all helped pile up a huge amount of water.But those characteristics are mainly a product of the day canada goose 3xl uk to day weather patterns around Florence and are somewhat random a roll of the weather dice, if you will.One important threat enhancer is that ocean levels along the East Coast have risen by nearly a foot in the past century, thanks primarily to global ocean warming.The added height of the ocean is a reality faced every day by coastal canada goose jacket outlet residents, even when storms are not present, such as with sunny day floods in Miami and the Outer Banks of North Carolina.But when a storm such as Florence or Barry comes ashore, the destruction is even worse than it would have been decades ago one reason why Category 1 hurricanes such as Matthew and Florence produced higher water levels on the North Carolina coast than did 1954’s Hurricane Hazel, a Category 3 storm when it made landfall in the same region.Florence, Harvey and now Barry should not be treated as an example of canada goose outlet what human fueled global warming could bring us at some point in the future. They are unfortunate examples of what global warming, caused by ever increasing greenhouse gas emissions, is doing to storms in the present day.Better coastal infrastructure and flood defenses, along with an immediate reduction in greenhouse emissions, can help minimize the future threat.President Donald Trump got a close up view of the damage when he toured the hardest hit areas of the Carolinas last year, just as he did in Houston with Hurricane Harvey in 2017.The visit once again provided the President with evidence that climate change is already affecting the country.

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