NEW : First tornado reported in Mississippi , agency says . Some areas will see up to 8-10 inches of snow , others around 4-7 inches . First in Jackson , Mississippi , likely caused by a tornado , National Weather Service says . New York governor declares winter ice emergency . Possible tornado injures three , damages homes in town .
NEW : First tornado reported in Mississippi , agency says . First in Jackson , Mississippi , likely caused by a tornado , National Weather Service says . New York governor declares winter ice emergency . Possible tornado injures three , damages homes in town .