News Analysis Sept. 1 started as a regular rainy day in New York City. By 4 p.m., grey overcast sweated out just 0.13 inches of rain in Central Park, below normal for the time of the year, according to the National Weather Service (NWS). But by midnight, the city would suffer the deadliest weather disaster since Superstorm Sandy. In some ways, this was a storm the city may have never seen before—unprecedented in the speed with which it drenched the city, leaving more than dozen dead in its wake. Early Warnings NWS New York saw a big storm coming, predicting the “remnants” of Hurricane Ida would bring nearly 4 inches of rain to the city and up to 8 inches in some areas upstate. Soil was already saturated with previous rainwaters, adding to the flood risk, it said. “There may not be much rain going on at your location right …