April 21, 2026
549174
High Surf Advisory
Alert:
...HIGH SURF ADVISORY FOR NORTH AND WEST FACING SHORES OF NIIHAU 
KAUAI OAHU AND MOLOKAI FOR NORTH FACING SHORES OF MAUI AND FOR 
WEST FACING SHORES OF THE BIG ISLAND... 
 
.A large, reinforcing northwest swell will cause surf to increase 
later today along most north and west facing shores of the 
islands. Surf may approach the High Surf Warning criteria along 
north and west facing shores of Kauai County, and possibly Oahu, 
later today. This elevated surf is expected to persist along most 
north and west facing shores of the smaller islands from tonight 
through early Friday. 
 
...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 6 PM HST THIS 
EVENING... 
 
* WHAT...Large breaking waves of 6 to 8 feet. 
 
* WHERE...West facing shores of the Big Island. 
 
* WHEN...Through this afternoon. 
 
* IMPACTS...Moderate. Expect strong breaking waves, shore break, 
and strong longshore and rip currents making swimming 
difficult and dangerous.
Instructions: Beachgoers, swimmers, and surfers should heed all advice given by ocean safety officials and exercise caution.
Target Area:
Kohala
Kona

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