From the Liberty County Emergency Management Agency:
WIND CHILL ADVISORY IN EFFECT FROM 4 AM TO 8 AM EST THURSDAY...
* WHAT...Very cold wind chills expected. The cold wind chills will
cause frostbite in as little as 30 minutes to exposed skin.
Expect wind chills to be around 15 above zero.
* WHERE...In South Carolina, Beaufort, Coastal Colleton,
Charleston, Coastal Jasper and Tidal Berkeley counties. In
Georgia, Inland Bryan, Coastal Bryan, Inland Chatham, Coastal
Chatham, Long, Inland Liberty, Coastal Liberty, Inland
McIntosh and Coastal McIntosh counties.
* WHEN...From 4 AM to 8 AM EST Thursday.
A Wind Chill Advisory means that cold air and the wind will
combine to create low wind chills. Frost bite and hypothermia can
occur if precautions are not taken. Make sure you wear a hat and