Weather Forecast for Kauai

A large long-period south-southwest swell will produce surges in south and west facing harbors and breaking waves near harbor entrances today through Monday night. Mariners using these harbors should exercise caution when entering or leaving and when mooring or launching vessels. Boaters should expect recreational surfers and body boarders utilizing harbor channels to access surfing areas.

A large long-period south-southwest swell will produce surges in south facing harbors and breaking waves near harbor entrances today through Monday night. Mariners using these harbors should exercise caution when entering or leaving and when mooring or launching vessels. Boaters should expect recreational surfers and body boarders utilizing harbor channels to access surfing areas.

...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.

Avoid driving through flooded roadways. If you are forced to drive through salt water, be sure to rinse your vehicle with fresh water. Move electronics, vehicles or other valuables to higher ground. Monitor vessels to ensure mooring lines don't get too tight and watch out for overwash around boat ramps. Secure canoes or other watercraft stowed on beaches. 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.

...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...Isolated minor coastal flooding. * WHERE...Vulnerable low-lying coastal roadways, docks, boat ramps and other coastal infrastructure. * WHEN...Around the daily peak tides during the late afternoon and early evening hours through Tuesday afternoon. * IMPACTS...Flooding of beaches that are normally dry, some minor coastal erosion, and saltwater inundation of low-lying roads, docks, boat ramps, and other coastal infrastructure.

Do not drive through flooded roadways. Owners of properties in low-lying shoreline areas or near waterways should consider moving any electronics, vehicles, or other valuables to higher ground. Boaters should monitor vessels to ensure mooring lines don't get too tight and be aware of overwash around boat ramps at high tide. Any recreational watercraft on beaches, such as canoes, should be secured or moved.