NEW : half death is attributed to the cold . The unusually early cold weather is the result of a blocking pattern over the Atlantic Ocean that is helping to allow freezing air from Canada to flow into the eastern half of the country , said CNN meteorologist Rob Marciano . ` The Greenville citrus crop escapes damage in the winter outbreak of the year 's first cold snap . Another round of freezing temperatures is forecast for morning .
NEW : half death is attributed to the cold . The Greenville citrus crop escapes damage in the winter outbreak of the year 's first cold snap . Another round of freezing temperatures is forecast for morning .