Updated at 4:25 p.m. Sept. 5, 2026.
The high surf advisory for south and east exposures of the state, including Kauaʻi County, will now remain in effect through 6 a.m. Tuesday.
National Weather Service forecasters in Honolulu report swells from Hurricane Lowell will keep surf elevated above high surf advisory conditions along south shorelines through at least Sunday.
“A forecasted northward turn will cause an increase in swell, likely bringing surf along these shores rapidly to warning levels by Monday,” the updated advisory said. “A large, medium-period east swell from Tropical Storm Karina will also persist through at least Monday, producing advisory level surf along east-facing shores.”
Surf up to 14 feet is forecast along eastern shorelines and up to 12 feet along south-facing shores, increasing to 14 feet by Sunday night.
Large breaking surf, significant shorebreak and dangerous currents will make entering the water very hazardous.
The high surf advisory also is expected to be upgraded to a high surf warning Sunday night into Monday for affected south-facing shores as surf heights are forecast to rapidly increase to warning levels.
Members of the public should heed all advice from ocean safety officials. When in doubt, don’t go out.
The swells generated by Lowell are expected to drop off quickly Tuesday.
