April 21, 2026

CURRENT WEATHER WATCHES…..High Surf, Coastal Flooding, Red Flag, High Winds

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High Surf Advisory

11/15/2024 03:24 HST through 11/17/2024 06:00 HST

High Surf Advisory issued November 15 at 3:24AM HST until November 17 at 6:00AM HST by NWS Honolulu HI
…HIGH SURF ADVISORY FOR EAST FACING SHORES OF KAUAI OAHU MOLOKAI MAUI AND BIG ISLAND UNTIL 6 AM HST SATURDAY… …COASTAL FLOOD STATEMENT IN EFFECT FOR ALL HAWAIIAN ISLANDS THROUGH MONDAY MORNING… .Strong winds will maintain large east wind waves, keeping surf heights above advisory levels along exposed east facing shores into the weekend. Peak monthly tides will lead to minor coastal flooding in the typical low-lying vulnerable areas in the early mornings. * WHAT…For the High Surf Advisory, large breaking waves of 8 to 12 ft. For the Coastal Flood Statement, isolated minor coastal flooding. * WHERE…For the High Surf Advisory, for east facing shores of Kauai, Oahu, Molokai, Maui and the Big Island. For the Coastal Flood Statement, low lying coastal areas of Kauai, Oahu, Molokai, Maui, and the Big Island. * WHEN…For the High Surf Advisory, until 6 AM HST Sunday. For the Coastal Flood Statement, through Monday morning. * IMPACTS…Flooding of beaches that are normally dry, minor coastal erosion, and saltwater inundation. Moderate. Strong breaking waves and strong currents will make swimming dangerous.

Instructions

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. Heed all advice from ocean safety officials. When in doubt, don’t go out.

Olomana; Maui Windward West; Kauai East; Koolau Windward; Molokai Southeast; Windward Haleakala; Kipahulu; South Haleakala; Big Island Southeast; Big Island East; Big Island North

Expected / Actual

Coastal Flood Statement

11/15/2024 03:24 HST through 11/18/2024 08:00 HST

Coastal Flood Statement issued November 15 at 3:24AM HST until November 18 at 8:00AM HST by NWS Honolulu HI
…HIGH SURF ADVISORY FOR EAST FACING SHORES OF KAUAI OAHU MOLOKAI MAUI AND BIG ISLAND UNTIL 6 AM HST SATURDAY… …COASTAL FLOOD STATEMENT IN EFFECT FOR ALL HAWAIIAN ISLANDS THROUGH MONDAY MORNING… .Strong winds will maintain large east wind waves, keeping surf heights above advisory levels along exposed east facing shores into the weekend. Peak monthly tides will lead to minor coastal flooding in the typical low-lying vulnerable areas in the early mornings. * WHAT…For the High Surf Advisory, large breaking waves of 8 to 12 ft. For the Coastal Flood Statement, isolated minor coastal flooding. * WHERE…For the High Surf Advisory, for east facing shores of Kauai, Oahu, Molokai, Maui and the Big Island. For the Coastal Flood Statement, low lying coastal areas of Kauai, Oahu, Molokai, Maui, and the Big Island. * WHEN…For the High Surf Advisory, until 6 AM HST Sunday. For the Coastal Flood Statement, through Monday morning. * IMPACTS…Flooding of beaches that are normally dry, minor coastal erosion, and saltwater inundation. Moderate. Strong breaking waves and strong currents will make swimming dangerous.

Instructions

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. Heed all advice from ocean safety officials. When in doubt, don’t go out.

Olomana; Maui Windward West; Kauai East; Koolau Windward; Molokai Southeast; Windward Haleakala; Kipahulu; South Haleakala; Big Island Southeast; Big Island East; Big Island North

Expected / Actual

Coastal Flood Statement

11/15/2024 03:24 HST through 11/18/2024 08:00 HST

Coastal Flood Statement issued November 15 at 3:24AM HST until November 18 at 8:00AM HST by NWS Honolulu HI
…HIGH SURF ADVISORY FOR EAST FACING SHORES OF KAUAI OAHU MOLOKAI MAUI AND BIG ISLAND UNTIL 6 AM HST SATURDAY… …COASTAL FLOOD STATEMENT IN EFFECT FOR ALL HAWAIIAN ISLANDS THROUGH MONDAY MORNING… .Strong winds will maintain large east wind waves, keeping surf heights above advisory levels along exposed east facing shores into the weekend. Peak monthly tides will lead to minor coastal flooding in the typical low-lying vulnerable areas in the early mornings. * WHAT…Isolated minor coastal flooding. * WHERE…Low lying coastal areas of Niihau, Kauai, Oahu, Molokai, Lanai, Kahoolawe, Maui, and the Big Island. * WHEN…Through Monday morning. * IMPACTS…Flooding of beaches that are normally dry, minor coastal erosion, and saltwater inundation.

Instructions

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.

Niihau; Kauai Southwest; Waianae Coast; Oahu North Shore; Kahoolawe; Maui Leeward West; Kona; Kohala; Kauai North; Kauai South; East Honolulu; Honolulu Metro; Ewa Plain; Molokai Windward; Molokai North; Molokai West; Molokai Leeward South; Lanai Windward; Lanai Leeward; Lanai South; Maui Central Valley North; Maui Central Valley South; South Maui/Upcountry; Big Island South

Expected / Actual

Red Flag Warning

11/15/2024 03:08 HST through 11/15/2024 18:00 HST

Red Flag Warning issued November 15 at 3:08AM HST until November 15 at 6:00PM HST by NWS Honolulu HI
…RED FLAG WARNING FOR LEEWARD AREAS OF ALL ISLANDS TODAY… .The combination of dry fuels, low relative humidity and strong trade winds will bring critical fire weather conditions for leeward sections of the state today. * AFFECTED AREA…Leeward portions of all Hawaiian Islands. * TIMING…From 10 AM this morning to 6 PM HST this evening. * WINDS…East 20 to 30 mph with gusts up to 45 mph. * RELATIVE HUMIDITY…As low as 40 to 45 percent. * IMPACTS…A combination of strong winds, low relative humidity, and dry fuels can contribute to extreme fire behavior. Any fires that develop will likely spread rapidly. A Red Flag Warning does not predict new fire starts.

Instructions

Outdoor burning is not recommended. Heat from vehicle exhaust systems can ignite dry grass. Park cars on areas that are paved or where vegetation is trimmed and cleared. High winds contribute to wildfire hazard. Delay activities that could throw off sparks until the wind dies down. Outdoor burning is not recommended. Heat from vehicle exhaust systems can ignite dry grass. Park cars on areas that are paved or where vegetation is trimmed and cleared. High winds contribute to wildfire hazard. Delay activities that could throw off sparks until the wind dies down. A Red Flag Warning means that critical fire weather conditions are either occurring now or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. A Red Flag Warning does not predict new fire starts.

Niihau; Kauai South; Kauai Southwest; East Honolulu; Honolulu Metro; Ewa Plain; Waianae Coast; Oahu North Shore; Waianae Mountains; Molokai West; Molokai Leeward South; Lanai Windward; Lanai Leeward; Lanai South; Lanai Mauka; Maui Leeward West; Maui Central Valley North; Maui Central Valley South; South Maui/Upcountry; South Haleakala; Big Island South; Big Island Southeast; Kohala; Big Island Interior

Expected / Actual

Wind Advisory

11/15/2024 03:03 HST through 11/17/2024 06:00 HST

Wind Advisory issued November 15 at 3:03AM HST until November 17 at 6:00AM HST by NWS Honolulu HI
* WHAT…East winds 20 to 30 mph with gusts up to 50 mph. * WHERE…Portions of Kahoolawe, Lanai, Maui, Molokai, and the Big Island Hawaii. Winds will be strongest over ridges, through passes and near higher terrain. * WHEN…Until 6 AM HST Sunday. * IMPACTS…Winds this strong can tear off shingles, knock down tree branches, blow away tents and awnings and make it difficult to steer, especially for drivers of high profile vehicles.

Instructions

Watch out for falling tree branches when walking or driving. Make sure tents and awnings are secure or take them down. Be prepared for power outages.

Lanai Mauka; Kahoolawe; Maui Windward West; Maui Leeward West; Kohala; Big Island Interior; Molokai North; Molokai West; Molokai Leeward South; Lanai Windward; Lanai Leeward; Maui Central Valley North; Maui Central Valley South; South Haleakala; Big Island South; Big Island Southeast; Big Island North

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