Answer
Swell from distant hurricanes and nor’easters rearranges sandbars and opens new channels that Beach Patrol monitors at dawn. Skies may clear while long-period waves still fuel rips for days. Do not assume calm weather equals green-flag swimming—check the stand.
Sources: Ocean City Beach Patrol · NWS Wakefield / NOAA · Town of Ocean City
Editorial visitor guidance for Ocean City, Maryland. Confirm current Town of Ocean City, Maryland DNR, NPS Assateague, and NWS rules when regulations or safety apply.
