Warning Vector

High Surf Advisory

NWS Honolulu HI ยท US

Updated

Details

High Surf Advisory Remains In Effect Until 6 PM HST Sunday

Event
High Surf Advisory
Issued
Onset
Message expires
Expected end
Category
Meteorological
Urgency
Expected
Severity
Minor
Certainty
Likely
Response
Avoid

Description

Overview

...HIGH SURF ADVISORY IN EFFECT FOR EAST FACING SHORES OF KAUAI AND OAHU THROUGH SUNDAY... ...HIGH SURF ADVISORY IN EFFECT FOR EAST AND SOUTHEAST FACING SHORES OF MOLOKAI MAUI AND THE BIG ISLAND THROUGH SUNDAY... .Hurricane Nolo is generating a moderate swell that is producing advisory level surf along east and southeast facing shores of the Big Island, Maui, and Molokai that will maintain tonight and then diminish on Sunday as Nolo moves westward away from the islands. Strengthening trades also cause building surf which peaks tonight for east facing shorelines and begins to diminish on Sunday.

What

Large breaking waves of 9 to 12 ft.

Where

East and southeast facing shores of the Big Island, Maui, and Molokai.

When

Until 6 PM HST Sunday.

Impacts

Moderate to high. Strong breaking waves and strong currents will make swimming dangerous. Waves breaking in channel entrances may make navigating the channels dangerous.

Instructions

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

Affected areas

  • Maui Windward West
  • Molokai Windward
  • Molokai Southeast
  • Windward Haleakala
  • Kipahulu
  • South Haleakala
  • Big Island Southeast
  • Big Island East
  • Big Island North

Public contact

Issuer
NWS Honolulu HI

Message record

Received
Issue to receipt
~21s
CAP status
Actual
CAP message type
Update
Lifecycle
Updated
Source
NWWS-OI
Feed
NWWS
Recovered
No
CAP routing and identity
ULID
01M3F19M8JR013GT3XF3Y6E3GM
Identifier
urn:oid:2.49.0.1.840.0.a38ce18901033b32ede99c801b4198ede924be8c.001.1
Sender
w-nws.webmaster@noaa.gov
Scope
Public
CAP source
211803 v2.3.0
Handling codes
IPAWSv1.0
Issuing office
NWS Honolulu HI
AWIPS ID
CAPHFO
NWWS sequence
nwws_processor.3208
WMO heading
XOHW50
WMO data type
CAP alert message XML (XO)
WMO geography
Hawaiian Islands (HW)
WMO bulletin number
50

References

Sender
w-nws.webmaster@noaa.gov
Sent
Sender
w-nws.webmaster@noaa.gov
Sent
Sender
w-nws.webmaster@noaa.gov
Sent
Sender
w-nws.webmaster@noaa.gov
Sent
Sender
w-nws.webmaster@noaa.gov
Sent
Sender
w-nws.webmaster@noaa.gov
Sent

Event codes

NameValue
SAMENWS
NationalWeatherServiceSUY

Parameters

NameValue
AWIPSidentifierCFWHFO
WMOidentifierWHHW40 PHFO 261418
NWSheadlineHIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 6 PM HST SUNDAY
BLOCKCHANNELEAS
BLOCKCHANNELNWEM
VTEC/O.CON.PHFO.SU.Y.0039.000000T0000Z-260928T0400Z/
eventEndingTime2026-09-27T18:00:00-10:00
BLOCKCHANNELCMAS
expiredReferencesw-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.92cc55947eb5bbaff4d066d1977e0a734a4b915a.001.1,2026-09-25T03:56:00-10:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.b73608e0380d3924f185c9462ff3222b8f461aea.001.1,2026-09-24T17:13:00-10:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.79557448fbfb08242b850a44bd9fb65bf8aa8604.001.1,2026-09-24T16:02:00-10:00
Locations

Location data

  • Maui Windward West
  • Molokai Windward
  • Molokai Southeast
  • Windward Haleakala
  • Kipahulu
  • South Haleakala
  • Big Island Southeast
  • Big Island East
  • Big Island North
NameValue
SAME015009
SAME015001
UGCHIZ017
UGCHIZ037
UGCHIZ038
UGCHIZ047
UGCHIZ048
UGCHIZ050
UGCHIZ052
UGCHIZ053
UGCHIZ054