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High Surf Warning
ActiveNiihau; Kauai Southwest; Waianae Coast; Kahoolawe; Maui Leeward West
Status
In Progress
Started about 2 hours ago
Ends
Issued
Severity
Moderate
Urgency
Expected
Certainty
Likely
Details
...HIGH SURF WARNING FOR SOUTH FACING SHORES OF ALL HAWAIIAN ISLANDS THROUGH TUESDAY MORNING... ...COASTAL FLOODING DURING HIGH TIDES THROUGH TUESDAY...
.The combination of a large long-period south-southwest (200 degree) swell and King Tides will cause significant wave up and could cause widespread coastal flooding during the afternoon high tides. Also due to the highest monthly tides and water levels running higher than predicted at select areas, flooding along all shorelines and in low-lying coastal areas are expected especially during the late afternoon and early evening hours.
* WHAT...For the High Surf Warning, dangerously large breaking waves of 10 to 15 feet. Significant wave run up expected during the peak high tide during the afternoons. For the Coastal Flood Statement, isolated minor coastal flooding.
* WHERE...South facing shores of all Hawaiian Islands. Vulnerable low-lying coastal roadways, docks, boat ramps and other coastal infrastructure.
* WHEN...For the High Surf Warning, until 6 AM HST Tuesday. For the Coastal Flood Statement, through Tuesday afternoon.
* IMPACTS...High. Expect very strong breaking waves and powerful currents. Waves breaking in channel entrances may make navigating the channels dangerous. Flooding of beaches that are normally dry, minor coastal erosion, and saltwater inundation.
* ADDITIONAL DETAILS...The combination of the south-southwest swell and King Tides over the next couple of days will result in more widespread coastal shore impacts, particularly during the afternoon and evening peak daily tide.
Data from the National Weather Service
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