The surf is building along north and west shores of the Hawaiian islands and is expected to be at dangerous levels.
The National Weather Service has issued a high surf advisory set to go into effect from 9 a.m. Tuesday until 6 p.m. Wednesday as a large north-northwest swell arrives.
The surf will reach up to 24 feet along north and west shores of Niihau and Kauai, as well as the north shore of Oahu.The surf will reach up to 20 feet along north shores of Molokai and Maui, and 15 feet along west shores of Oahu and Molokai.
This activity is happening now and should continue through Wednesday.
It is very important to stay out of the water if you are visiting the Hawaiian islands in these areas, unless you are a proficient surfer.