WAIKIKI (HawaiiNewsNow) -
At mid-day on Waikiki Beach, a crowded shore, blue water and clear skies were the calm before what is coming to Oahu's South shore.
"There's just a whole lot of water that's going to be moving, much more so than we would see during a normal swell episode," City Ocean Safety Division chief Jim Howe said.
Forecasters said Ana will generate a swell, and winds blowing on shore will make seas choppy, rough and potentially dangerous.
"Makes me a little nervous because we're not really used to hurricanes so much," visitor Janet Vanvelzen said.
Rain could bring runoff from rivers and culverts and change water quality. The wind could blow in jellyfish and debris.
"If you're not sure just stay away from the ocean or check with us and check with the lifeguards," surf instructor Corbin Peleiholani said.
Saturday night into Sunday, South shore waves could have ten- to twenty-foot faces. Homes along Diamond Head's gold coast are close to the water. And there isn't much sand between the Outrigger Reef Waikiki Beach Resort and the ocean.
"But we anticipate that we'll barricade the front, the beach side and the street side of the building, so the garages don't get as much water in them as they might otherwise. we'll probably move the cars out first and put them in an elevated garage," executive vice president Barry Wallace said.
How said lifeguards will man towers during the day and be in 911 response mode. When water that builds on shore moves back out, the current will be a concern.
"Sometimes we even get super rips, and these rip currents can take a person as far out to sea as one mile," he said.
Howe said the conditions will be disorienting with waves breaking erratically. Tropical storm Iselle had minimal impact on Oahu's beaches. Ana is expected to make more of a splash.