Advisories are issued when you have a wind-chill or "feels like" temperature of 35 degrees or lower for at least three hours.

bringing a deep chill to hundreds of millions of people over the next seven days. Some folks in Florida could have to dodge falling iguanas as parts of the Sunshine State are expected to dip below ...

Advisories are issued when you have a wind-chill or "feels like" temperature ... be enough to 'freeze' South Florida's invasive green iguana? Florida Fish and Wildlife Conservation Commission ...