New york weather in june7/24/2023 “There still hasn’t been a great deal of momentum away from that.The odd blizzard and below-freezing temperatures make February a good time to stay indoors nursing a drink or a warm meal at a cozy bar or bistro. “We are still moving in a pretty alarming direction overall when it comes to warming,” Dr. Swain, a climate scientist at the University of California, Los Angeles. But human-driven warming remains the long-term trend, said Daniel L. The weather’s natural variability is always causing swings, both warm and cool, between years and in specific regions. The plume from last year’s eruption may have increased the amount of water in the global stratosphere by more than 5 percent, the researchers said. Like carbon dioxide, water vapor is a greenhouse gas: It traps heat near Earth’s surface. In January 2022, a volcanic eruption beneath the Pacific archipelago nation of Tonga blasted a huge amount of vaporized seawater into the atmosphere: at least 55 million tons, according to research published last year. There’s another factor that could also have made the world hotter recently, though it’s not clear how much. “Where we may have had uncertainty in the past, we’re going to have larger uncertainty,” Dr. But it also assigned 30 percent probabilities to the season’s being above or below normal. NOAA last month said there was a 40 percent chance that this year’s hurricane season would be near normal. But the record warmth recently in parts of the North Atlantic could have an opposing effect by fueling stronger hurricanes. El Niño tends to reduce hurricane activity by increasing wind shear, or the changes in wind speed and direction that can disrupt storms as they form. This pile-on has also made it trickier for NOAA to forecast the 2023 Atlantic hurricane season, Dr. That means the current one has emerged amid planetary conditions that could compound its warming effects. But humans have pumped three additional years’ worth of greenhouse gases into the atmosphere since the last El Niño. The intermittent phenomenon influences weather dynamics worldwide and tends to be associated with warmer years globally. Source: Climate Reanalyzer, Climate Change Institute at the University of Maine, based on data from the National Centers for Environmental Prediction Climate Forecast SystemĮl Niño conditions occur when the water at the surface of the central and eastern Pacific around the Equator is warmer than usual. It has manifested in Siberia, which has been roasted by extreme heat, and around Antarctica, where the extent of the surrounding sea ice last month reached a record low for May. In recent weeks, it has manifested in Canada, where many areas are still dealing with huge forest fires that have churned toxic smoke into the United States. That energy is going to manifest in any number of different ways.” “We’re putting heat into the system - through climate change, through the greenhouse effect - and that heat is going to manifest. “The short version is: Expect surprises,” Rick Spinrad, the administrator of the National Oceanic and Atmospheric Administration, said in an interview on Monday. The spike reflects two factors that are shaping what forecasters say could be a multiyear period of exceptional warmth for the planet: humans’ continued emissions of heat-trapping gases and the return, after three years, of the natural climate pattern known as El Niño.īoth factors are also setting the thermodynamic stage for more-severe hot spells, droughts, wildfires and even hurricanes, which acquire their destructive energy from heat in the oceans. Temperatures around the world this month have been at their highest levels in decades for this time of year. Source: Climate Reanalyzer, Climate Change Institute at the University of Maine, based on data from the National Centers for Environmental Prediction Climate Forecast System | Note: Forecast models are available from 1979.
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