High Surf Advisory
NWS Honolulu HI ยท US
Details
High Surf Advisory In Effect Until 6 PM HST Saturday
- 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 FOR EAST FACING SHORES OF MOLOKAI AND MAUI AND FOR EAST AND SOUTHEAST SHORES OF THE BIG ISLAND... .Tropical Storm Nolo is forecast to continue strengthening south of the Big Island tonight as it tracks northward. It is then forecast to move westward this weekend, with the center remaining south of the main Hawaiian Islands. However, a short period south swell and strong winds generated by Nolo will produce advisory level surf along exposed east and southeast facing shores.
What
Large breaking waves of 7 to 10 feet, increasing to 8 to 12 feet for the Big Island on Friday.
Where
East facing shores of Molokai and Maui. East and southeast facing shores of the Big Island.
When
Until 6 PM HST Saturday.
Impacts
Moderate. Strong breaking waves and strong currents will make swimming 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
- Website
- http://www.weather.gov
Message record
- Received
- Issue to receipt
- ~43s
- CAP status
- Actual
- CAP message type
- Alert
- Lifecycle
- New
- Source
- NWWS-OI
- Feed
- NWWS
- Recovered
- No
CAP routing and identity
- ULID
- 01M3B4SXB5JXSBW2JDSE4XWHC1
- Identifier
- urn:oid:2.49.0.1.840.0.79557448fbfb08242b850a44bd9fb65bf8aa8604.001.1
- 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.2983
- WMO heading
- XOHW50
- WMO data type
- CAP alert message XML (XO)
- WMO geography
- Hawaiian Islands (HW)
- WMO bulletin number
- 50
Event codes
| Name | Value |
|---|---|
| SAME | NWS |
| NationalWeatherService | SUY |
Parameters
| Name | Value |
|---|---|
| AWIPSidentifier | CFWHFO |
| WMOidentifier | WHHW40 PHFO 250202 |
| NWSheadline | HIGH SURF ADVISORY IN EFFECT UNTIL 6 PM HST SATURDAY |
| BLOCKCHANNEL | EAS |
| BLOCKCHANNEL | NWEM |
| VTEC | /O.NEW.PHFO.SU.Y.0039.260925T0202Z-260927T0400Z/ |
| eventEndingTime | 2026-09-26T18:00:00-10:00 |
| BLOCKCHANNEL | CMAS |
Locations
Location data
- Maui Windward West
- Molokai Windward
- Molokai Southeast
- Windward Haleakala
- Kipahulu
- South Haleakala
- Big Island Southeast
- Big Island East
- Big Island North
| Name | Value |
|---|---|
| SAME | 015009 |
| SAME | 015001 |
| UGC | HIZ017 |
| UGC | HIZ037 |
| UGC | HIZ038 |
| UGC | HIZ047 |
| UGC | HIZ048 |
| UGC | HIZ050 |
| UGC | HIZ052 |
| UGC | HIZ053 |
| UGC | HIZ054 |