HONOLULU (HawaiiNewsNow) - Forecasters say a "ginormous" northwest swell has reached Kauai.
The National Weather Service says warning level surf has reached Kauai and will rise along North and West facing shores of the other islands tonight.
A High Surf Warning has been issued effective 10 a.m. through 6 a.m. Thursday for North and West shores of all islands.
Surf heights will be 25 to 35 feet along North facing shores and 15 to 25 feet along West facing shores.
Coastal residents should be particularly attentive around midnight tonight when a high tide of +1.9 could send waves up the coastline toward homes and roads.
A high surf warning indicates that dangerous and battering waves will pound the shoreline, resulting in very dangerous swimming conditions and deadly rip currents.
"The likelihood is slim to none," said event organizer Glen Moncata. "This is a fast-moving system that will likely peak overnight and drop throughout the day tomorrow. There will be some waves in the 20-foot range overnight, but very little of the 20+ scale that the event mandates tomorrow. It will be a good opportunity for competitors to warm up."
The Quiksilver In Memory of Eddie Aikau is in its 27th year and has until February 29 to run at Waimea Bay, on Oahu's North Shore. It is a one-day event held in honor of legendary Hawaiian waterman, lifeguard and big-wave rider Eddie Aikau. The event has run eight times in its 27-year history, most recently in December of 2009, when it was won by California's Greg Long.