# High Surf Advisory: Niihau; Kauai Southwest; Waianae Coast; Kahoolawe; Maui Leeward West; Kona; Kauai South; East Honolulu; Honolulu Metro; Ewa Plain; Molokai West; Molokai Leeward South; Lanai Leeward; Lanai South; Maui Central Valley South; South Maui/Upcountry; South Haleakala; Big Island South; Big Island Southeast — retained record

> Retained us-gov-api record from us-gov-api:noaa-weather.

Canonical: https://highsignal.app/data/records/54b8f7d9cee1ab01

[← sources](https://highsignal.app/data)


source: [us-gov-api](https://highsignal.app/data/us-gov-api) (us-gov-api:noaa-weather)  published 2026-08-12 15:40 ingested 2026-08-13 07:31

[original source ↗](http://www.weather.gov/)

## extract

High Surf Advisory — Niihau; Kauai Southwest; Waianae Coast; Kahoolawe; Maui Leeward West; Kona; Kauai South; East Honolulu; Honolulu Metro; Ewa Plain; Molokai West; Molokai Leeward South; Lanai Leeward; Lanai South; Maui Central Valley South; South Maui/Upcountry; South Haleakala; Big Island South; Big Island Southeast
Severity: Minor. Certainty: Likely.
...HIGH SURF ADVISORY FOR SOUTH FACING SHORES THROUGH THURSDAY
NIGHT...

.A new long-period south (190 degree) swell will steadily fill in
tonight and peak on Thursday at advisory thresholds. Surf heights
may linger at advisory thresholds through Friday.

* WHAT...Surf building to 8 to 12 feet by Thursday.

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

* WHEN...Until 6 AM HST Friday.

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

## retained text

The historical document was shared with another weather alert and cannot be attributed to this record. The original extract is preserved above; the exact alert link was not retained.