544
WHHW40 PHFO 070044
CFWHFO

Coastal Hazard Message
National Weather Service Honolulu HI
244 PM HST Sun Sep 6 2026

...HIGH SURF WARNING FOR SOUTH FACING SHORES OF ALL ISLANDS
THROUGH MONDAY NIGHT...
...HIGH SURF WARNING FOR WEST FACING SHORES OF BIG ISLAND THROUGH
MONDAY NIGHT...
...HIGH SURF ADVISORY FOR EAST FACING SHORES OF ALL ISLANDS
THROUGH MONDAY NIGHT...

.South swell from Hurricane Lowell is expected to rise rapidly
Monday, and peak Monday night bringing warning level surf to
exposed shorelines. This swell may shift out of the southwest
late Monday night. Due to the track of Lowell, a sharp gradient
in swell is expected from west to east. This will bring damaging
surf to portions of Kauai County and possibly Oahu. Swell energy
is expected to drop off quickly on Tuesday.

A large, medium-period east swell from Tropical Storm Karina will
also persist through at least Monday, producing advisory level
surf along east facing shores.

HIZ001-003-030-031-071345-
/O.UPG.PHFO.SU.Y.0036.000000T0000Z-260908T1600Z/
/O.NEW.PHFO.SU.W.0011.260907T0044Z-260908T1600Z/
Niihau-Kauai Southwest-Kauai East-Kauai South-
244 PM HST Sun Sep 6 2026

...HIGH SURF WARNING IN EFFECT UNTIL 6 AM HST TUESDAY...

* WHAT...Surf of 7 to 10 feet through Monday morning rapidly
  building to 20 to 30 feet Monday afternoon and evening.

* WHERE...South facing shores of Kauai and Niihau.

* WHEN...Until 6 AM HST Tuesday.

* IMPACTS...Extreme...Expect ocean water surging and sweeping over
  beaches, coastal benches, and roadways, creating the potential
  for significant damage to coastal properties and infrastructure,
  including roadways. Coastal evacuations and road closures are
  possible. Large breaking waves may affect harbor entrances and
  channels with significant damage possible to docks, piers,
  ramps, and boats.

* ADDITIONAL DETAILS...Vulnerable coastal roadways from Poipu to
  Kekaha are susceptible to overwash, with Lawai road at a
  particular risk for overwash.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$

HIZ006-016-018-023-032>034-038-040-041-043-044-046-048>052-071345-
/O.UPG.PHFO.SU.Y.0036.000000T0000Z-260908T1600Z/
/O.NEW.PHFO.SU.W.0011.260907T0044Z-260908T1600Z/
Waianae Coast-Kahoolawe-Maui Leeward West-Kona-East Honolulu-
Honolulu Metro-Ewa Plain-Molokai Southeast-Molokai West-
Molokai Leeward South-Lanai Leeward-Lanai South-
Maui Central Valley South-Kipahulu-South Maui/Upcountry-
South Haleakala-Big Island South-Big Island Southeast-
244 PM HST Sun Sep 6 2026

...HIGH SURF WARNING IN EFFECT UNTIL 6 AM HST TUESDAY...

* WHAT...Surf of 7 to 10 feet through Monday morning, rapidly
  building Monday afternoon and evening up to 12 to 20 feet on
  Oahu and 12 to 16 feet on Maui County and the Big Island.

* WHERE...South facing shores of Kahoolawe, Lanai, Maui, Molokai,
  Oahu and the Big Island.

* WHEN...Until 6 AM HST Tuesday.

* IMPACTS...Very High...Expect ocean water surging and sweeping
  across beaches, coastal benches, and lava flows creating the
  potential for impacts to coastal properties and infrastructure,
  including roadways. Powerful longshore and rip currents will be
  present at most beaches. Large breaking waves and strong
  currents may impact harbor entrances and channels causing
  challenging boat handling.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$

HIZ026-071345-
/O.NEW.PHFO.SU.W.0011.260907T0044Z-260908T1600Z/
Kohala-
244 PM HST Sun Sep 6 2026

...HIGH SURF WARNING IN EFFECT UNTIL 6 AM HST TUESDAY...

* WHAT...Surf of 6 to 8 feet through Monday morning rapidly
  building Monday afternoon and evening to 12 to 16 feet.

* WHERE...West facing shores of the Big Island.

* WHEN...Until 6 AM HST Tuesday.

* IMPACTS...High. Expect very strong breaking waves and powerful
  currents. Waves breaking in channel entrances may make
  navigating the channels dangerous.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$

HIZ009-035-037-047-053-054-071345-
/O.CON.PHFO.SU.Y.0036.000000T0000Z-260908T1600Z/
Olomana-Koolau Windward-Molokai Windward-Windward Haleakala-
Big Island East-Big Island North-
244 PM HST Sun Sep 6 2026

...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 6 AM HST TUESDAY...

* WHAT...Surf of 7 to 10 feet through Monday.

* WHERE...East facing shores of Oahu, Molokai, Maui, and Big
  Island.

* WHEN...Until 6 AM HST Tuesday.

* IMPACTS...Moderate. Strong breaking waves and strong currents
  will make swimming dangerous.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Heed all advice from ocean safety officials. When in doubt, don`t
go out.

&&

$$