Warning Vector

High Surf Advisory

NWS Honolulu HI ยท US

New

Details

High Surf Advisory Now In Effect Until 6 AM HST Monday

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 MOLOKAI, MAUI, AND THE BIG ISLAND THROUGH THIS EVENING... ...HIGH SURF ADVISORY IN EFFECT FOR SOUTHEAST FACING SHORES OF THE BIG ISLAND THROUGH THIS EVENING... ...HIGH SURF ADVISORY IN EFFECT FOR EAST FACING SHORES OF KAUAI AND OAHU THROUGH MONDAY MORNING... .Southeast swell generated by Hurricane Nolo is beginning to decline for the Big Island, but continues to produce advisory level surf for east and southeast facing shores. This swell combined with gale-force trades is producing advisory level surf along east facing shores of Maui, Molokai, Oahu and Kauai. Surf will diminish below advisory criteria later today for the eastern islands but will likely continue through tonight for Oahu and Kauai as Nolo moves westward away from the islands.

What

Large breaking waves of 10 to 14 ft in the morning, diminishing to 9 to 12 ft by this evening.

Where

East facing shores of Kauai and Oahu.

When

Until 6 AM HST Monday.

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

  • Olomana
  • Kauai East
  • Kauai South
  • Koolau Windward

Public contact

Issuer
NWS Honolulu HI

Message record

Received
Issue to receipt
~1m1s
CAP status
Actual
CAP message type
Alert
Lifecycle
New
Source
NWWS-OI
Feed
NWWS
Recovered
No
CAP routing and identity
ULID
01M3HJ2F7XBQHZZ61BZNM6JRCV
Identifier
urn:oid:2.49.0.1.840.0.6723ce9da4552d97f110a27df07ec13574bd4268.003.1
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.2408
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

Event codes

NameValue
SAMENWS
NationalWeatherServiceSUY

Parameters

NameValue
AWIPSidentifierCFWHFO
WMOidentifierWHHW40 PHFO 271349
NWSheadlineHIGH SURF ADVISORY NOW IN EFFECT UNTIL 6 AM HST MONDAY
BLOCKCHANNELEAS
BLOCKCHANNELNWEM
VTEC/O.EXT.PHFO.SU.Y.0039.000000T0000Z-260928T1600Z/
eventEndingTime2026-09-28T06:00:00-10:00
BLOCKCHANNELCMAS
expiredReferencesw-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.1faab60b5a0f6ef23a830207fc719c4804d80d32.004.1,2026-09-26T13:03:00-10:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.a38ce18901033b32ede99c801b4198ede924be8c.002.1,2026-09-26T04:18:00-10:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.6e97b03bcbdf1f074e1352b704ef285f992420a8.002.1,2026-09-25T14:51:00-10:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.2c96a617875240ddef9e1646f0df01606852dc0c.001.1,2026-09-25T09:17:00-10:00
Locations

Location data

  • Olomana
  • Kauai East
  • Kauai South
  • Koolau Windward
NameValue
SAME015003
SAME015007
UGCHIZ009
UGCHIZ030
UGCHIZ031
UGCHIZ035