WEATHER// A messy, slow-moving winter storm churned out yet another round of snow, ice and sleet in eastern US on Saturday, bringing slippery roads to Tennessee and Alabama and creating havoc along the Mid-Atlantic from Washington, DC, almost to Boston. Washington, DC, recorded between three and seven inches of snow as drivers fought poor visibility much of the day. Winter storm warnings and winter weather advisories were in effect for major cities as far apart as St Louis, Atlanta, Boston and Indianapolis. At least 20 people died from hypothermia in the latest blast of arctic air known as the Siberian Express, The Weather Channel says. The toll includes nine people in Tennessee, six in Pennsylvania, two in Illinois, and one each in Indiana, Ohio and Kentucky. The Central Park in New York City was covered in three inches of snow, and about 4.5 inches at Kennedy International Airport, according to the National Weather Service.