A late-winter storm has hit the northeast hard. It brought chaos to travel, forcing cancellations of about 8,800 flights inside the United States between Monday and Wednesday. Thousands of schools were closed due to inclement weather. Connecticut even closed highway travel for several hours and major regional rail traffic was suspended. Four weather-related deaths were reported in three states. Train service and flights resumed in some parts of the northeast Tuesday evening, but blizzard warnings remained in effect for parts of New England.