And what's really becoming clear is that these very extreme precipitation events are occurring more frequently than they used to and the main reason for that is human-caused climate change, which is increasing the amount of water vapor in the atmosphere and raising the ceiling on how intense the precipitation is under a variety of meteorological conditions. The extreme precipitation that we saw in New York City - and it really in numerous locations throughout the Northern Hemisphere this summer, there have been a number of really severe and extreme precipitation and associated flood events that have caused quite a lot of damage and taken quite a lot of lives really on a bunch of different continents, North America, Western Europe, Southeast Asia, etc. "But in reality, what was once the 100-year flood, the flood that had about a 1% chance of happening any given year, isn't the 100-year flood anymore. The following is Swain's observation on what's happening: The first time we've issued a Flash Flood Emergency was for Northeast New Jersey an hour ago, the weather service, based in Upton, said in a tweet.ĭaniel Swain, a UCLA climate scientist, emphasized to ABC that 1 in 100 or 1 in 500 doesn't mean the same in our warming climate thanks to human-induced climate change. this particular warning for NYC is the second time we've ever issued a Flash Flood Emergency (It's the first one for NYC). ![]() Tracking Ida: Storm remnants spawn tornadoes, historic, deadly flooding across NYC, Tri-State Covering New York City, New Jersey, Long Island and all of the greater New York Area. ![]() The agency defines such emergencies as exceedingly rare. New York's source for breaking news and live streaming video online. The first Flash Flood Emergency ever issued by the New York office came Wednesday evening for Northeast New Jersey, which was followed by the second one ever put out by the New York City office, covering New York City itself. The flash flood emergency issued by the National Weather Service was more severe than a flash flood watch or even a flash flood warning. The National Weather Service Office serving New York City said Wednesday evening this was the first time this office has ever had to issue a Flash Flood Emergency, on a night in which Manhattan's Central Park saw the most amount of rain ever to fall in a single hour. NEW YORK (WABC) - It's a night unlike any other in the history of New York area weather. The dry period won’t last for long though – as the end of the week could bring even more rain to the drenched region.Sam Champion explains the historic rain totals across the Tri-State area. The New York Police Department reported flooding that in some cases blocked traffic during rush. The average month-to-date rainfall for the area is 1.2 inches.īy Wednesday the low-pressure system will push a warm front northward and leave drier weather behind for the Northeast. A flash flood watch was in effect for parts of Long Island and Connecticut into Tuesday night. The month-to-date rainfall in Boston has reached a record 7.6 inches after seeing rain every day since the beginning of the month. It has already been a wet July for the city with rainfall this month making it the fifth-wettest July on record. The flash floods killed one woman in New York, who was swept away by rising waters while she tried to save herself and her dog, and caused tens of millions of dollars in damage. vXMLTfzEm6- NWS Eastern Region July 11, 2021 Do not drive through flooded roadways as water depth and road conditions can be hard to determine. Potential for heavy rain and flash flooding across parts of the Northeast tonight and especially Monday and Monday night, particularly poor drainage areas in the NYC metro region. That is a record for the highest amount of rainfall recorded so far in July.īoston is included in a slight risk for excessive rainfall and could see almost 2 inches of rainfall in some areas. The flood watch, issued on Saturday, will be in effect from late Saturday night into Sunday evening. ![]() The month-to-date rain total in New York is already 4.8 inches for the month, compared to the 1.5-inch average for the month-to-date July rainfall. ![]() Up to 5 inches of rainfall is possible in some areas of the Northeast through Wednesday.
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