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The National Weather Service in Upton, NY has issued a Blizzard Warning for the entire New York City metropolitan area. As of 6pm Friday evening, precipitation has transitioned from rain and sleet to heavy snow across all of New York City and Long Island conditions will begin to deteriorate as a storm system continues to intensify off shore. Total snow accumulations will range from over 12" across the city of New York to over 20" east towards eastern Long Island. Snowfall rates will begin to pick up in earnest through the evening, with peak snow fall rates as high as 2" to 4" per hour during the overnight especially across Long Island. Along with the heavy snow, as this storm system deepens winds will ramp up. At the height of the storm, sustained winds will range between 30 and 45 miles per hour with gust as high as 60 miles per hour. High winds coupled with heavy snow will produce true blizzard conditions reducing visibilities down below a quarter of a mile for extended periods of time. In addition, moderate coastal flooding is expected in the Long Island Sound as persistent northeasterly winds pile up waters 3 to 5 feet above astronomical high tide along the north shore and east into the twin forks. Conditions will begin to improve significantly Saturday morning from west to east as the storm system finally begins to pull away from the area.
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