April 20, 2026

Alert: High Surf Warning issued February 14 at 3:45AM HST until February 16 at 6:00PM

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Alert: High Surf Warning issued February 14 at 3:45AM HST until February 16 at 6:00PM HST by NWS Honolulu

…HIGH SURF WARNING IN EFFECT MIDNIGHT TONIGHT THROUGH FRIDAY
AFTERNOON…
.A significant, extra large northwest (320 degree) swell will
arrive late tonight and rapidly build down the island chain
Thursday. This swell will lift surf to above High Surf Warning
levels along most north and west-facing shores.
…HIGH SURF WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 6 PM HST
FRIDAY…
* WHAT…Surf heights 35 to 45 feet along most north-facing
shores. 20 to 25 foot surf heights along west-facing shores.
* WHERE…North-facing shores of Niihau, Kauai, Oahu, Molokai,
Maui and Big Island. West-facing shores of Niihau, Kauai, Oahu
and Molokai.
* WHEN…From Midnight tonight to 6 PM HST Friday.
* IMPACTS…High. Expect very strong breaking waves and powerful
currents. Waves breaking in channel entrances may make
navigating the channels dangerous.
* ADDITIONAL DETAILS…Coastal inundation along various northern
and western exposures is expected during times of high tide
Thursday and Friday evenings. Preparations should be made for
the threat of coastal flooding as ocean water runs up onto
beaches and potentially impacts coastal properties and
roadways.

Instructions:
Stay away from the shoreline along the affected coasts. Be
prepared for road closures. Postpone entering or leaving channels
affected by the high surf until the surf subsides.

Counties:
Big Island East; Big Island North; Kauai East; Kauai North; Kauai Southwest; Maui Central Valley North; Maui Windward West; Molokai North; Molokai West; Molokai Windward; Niihau; Oahu North Shore; Waianae Coast; Windward Haleakala

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