# High Surf Advisory: Niihau; Kauai Southwest; Waianae Coast; Kahoolawe; Maui Leeward West; Kona; Kauai South; East Honolulu; Honolulu Metro; Ewa Plain; 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/7b69dac92e3a7679

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


source: [us-gov-api](https://highsignal.app/data/us-gov-api) (us-gov-api:noaa-weather)  published 2026-07-20 15:24 ingested 2026-07-21 08:27

[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 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 TUESDAY...

.A moderate, long-period south swell will hold at advisory levels
through Tuesday afternoon. The swell should begin to fade by
Tuesday night or Wednesday, allowing surf to drop below advisory
thresholds.

* WHAT...Surf 7 to 10 feet.

* WHERE...South facing shores of all Hawaiian Islands.

* WHEN...Until 6 PM HST Tuesday.

* 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The historical document was shared with another weather alert and cannot be attributed to this record.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.