The cleanup—and mourning—continued Friday as the Northeast United States recovered from record-breaking rainfall from the remnants of Hurricane Ida. At least 48 people in five states died as storm water cascaded into people’s homes and engulfed automobiles, overwhelming urban drainage systems never meant to handle so much rain in such a short time. The toll was highest in New Jersey, where at least 25 people perished in heavy rains that began late Wednesday. A majority were people who drowned after their vehicles were caught in flash floods, some dying in their submerged cars, some getting swept away after exiting into fast-moving water. Floodwaters and a falling tree also took lives in Maryland, Pennsylvania, Connecticut, and New York. In New York City, 11 people died when they were unable to escape rising water in basement apartments. Authorities said the work of searching for possible victims and identifying the dead wasn’t over. …