* WHAT...Sub-freezing temperatures as low as 30 expected.
* WHERE...In North Carolina, Bladen, Columbus, Inland Brunswick, and Inland Pender Counties. In South Carolina, Central Horry, Inland Georgetown, and Northern Horry Counties.
* WHEN...From 1 AM to 9 AM EST Sunday.
* IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.