A dangerous snowstorm is heading towards New York City, New Jersey, and the upstate New York region, with forecasts predicting accumulated snowfall of up to 10 inches. A Winter Storm Warning has been issued as the storm approaches, prompting travel advisories due to potential delays during the post-Christmas travel period. Airlines have reported over 400 flight cancellations, with significant impacts expected at major airports including Newark, JFK, and LaGuardia. Residents are urged to prepare for hazardous conditions as the storm is set to deliver heavy snow, sleet, and ice across a broad area from the Great Lakes to the Northeast. As the storm unfolds, local authorities are mobilizing to address the winter weather challenges, including offering guidance on travel safety and updates on snowfall accumulation.