TRENTON, N.J. (AP) — Rough waves and rip currents spawned by Hurricane Igor could make for dangerous swimming conditions along the Jersey Shore this weekend.

The National Weather Service said swells kicked up by the storm were expected to build as the weekend progressed, and they could continue through Monday.

Swimming has not been banned at any New Jersey beaches, but yellow flags have been posted at many sites to warn swimmers about the conditions.

Officials warned that swimmers should only be in areas where lifeguards are stationed and should not swim alone — even if waters don’t appear to be risky — because the tides and currents can change quickly and unexpectedly.

Forecasters said Igor will likely pass over Bermuda or nearby by late Sunday or early Monday.

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