Station Name: Kaumalapau Southwest, Lanai, HI (239)
Station Type: Buoy
Data Source: National Data Buoy Center

Elevation Above Sea Level: 0 feet / 0 meters

Nearest Address:
Offshore
Lanai City, HI 96763
Maui County

GPS Coordinates: 20.75, -157.003

Nearby Water Temperatures

High Surf Advisory issued July 31 at 4:05PM HST until August 1 at 6:00PM HST by NWS Honolulu HI

Effective: Thu July 31, 2025, 4:05 PM
Expires: Fri August 1, 2025, 5:15 AM

...HIGH SURF ADVISORY FOR SOUTH FACING SHORES OF ALL HAWAIIAN ISLANDS... .A moderate to large long period south (190 degrees) swell is expected to hold near warning levels through tomorrow afternoon, then gradually decline through the weekend. * WHAT...Large breaking waves of 10 to 14 feet. * WHERE...South facing shores of all Hawaiian Islands. * WHEN...Until 6 PM HST Friday. * IMPACTS...Moderate. Strong breaking waves and strong currents will make swimming dangerous.

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

Wind Advisory issued July 31 at 3:20PM HST until August 1 at 6:00PM HST by NWS Honolulu HI

Effective: Thu July 31, 2025, 3:20 PM
Expires: Fri August 1, 2025, 4:30 AM

* WHAT...Northeast to east winds 20 to 35 mph with gusts up to 50 mph. * WHERE...Kahoolawe, Lanai Leeward, Lanai Mauka, Lanai Windward, Maui Central Valley North, Maui Central Valley South, Big Island North, Big Island South, Big Island Southeast, and Kohala. * WHEN...Until 6 PM HST Friday. * 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.

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.

Red Flag Warning issued July 31 at 3:20PM HST until August 1 at 6:00PM HST by NWS Honolulu HI

Effective: Thu July 31, 2025, 3:20 PM
Expires: Fri August 1, 2025, 5:30 AM

...RED FLAG WARNING IN EFFECT THROUGH FRIDAY AFTERNOON FOR GUSTY WINDS AND LOW HUMIDITY... .A dry and locally windy trade wind flow will produce critical fire weather conditions through at least Friday and possibly into Saturday. Winds will be strongest over and downwind of terrain. * AFFECTED AREA...Leeward portions of all Hawaiian Islands and interior sections of the Big Island. * TIMING...Until 6 PM HST Friday. * WINDS...East 15 to 30 mph with gusts up to 40 mph on Oahu and Kauai and gusts up to 50 mph on Maui County and Big Island. * RELATIVE HUMIDITY...Lowering to 35 to 45 percent in the afternoon hours. * 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.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.

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.

High Surf Advisory issued July 31 at 4:05PM HST until August 1 at 6:00PM HST by NWS Honolulu HI

Effective: Thu July 31, 2025, 4:05 PM
Expires: Fri August 1, 2025, 5:15 AM

...HIGH SURF ADVISORY FOR SOUTH FACING SHORES OF ALL HAWAIIAN ISLANDS... .A moderate to large long period south (190 degrees) swell is expected to hold near warning levels through tomorrow afternoon, then gradually decline through the weekend. * WHAT...Large breaking waves of 10 to 14 feet. * WHERE...South facing shores of all Hawaiian Islands. * WHEN...Until 6 PM HST Friday. * IMPACTS...Moderate. Strong breaking waves and strong currents will make swimming dangerous.

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