Double red flags have been posted on all beaches in the county Monday afternoon, according to a tweet from the Horry County Emergency Management Division.
Officials have prohibited swimming due to the anticipation of an incoming low pressure system that could morph into Tropical Storm Irma.
When double red flags are posted it means no swimming is allowed.
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The tweet says swimmers can’t go any further than knee-deep in the water.
Dangerous surf conditions with strong rip currents and steep waves are expected through Tuesday, forecasters said.