Breezy trades with light showers this evening. Statewide shower activity will mainly focus along windward exposures and upslope mauka with more organized cells passing over ridge tops and briefly wetting leeward communities. A plume of moisture moving south of the islands this weekend will likely clip the islands. This will increase rain chances, especially across Big Island, from late Saturday through early Monday.
Moderate trades to slightly increase through tomorrow. Low cigs and SHRA likely over windward and mauka locations. MVFR conds possible otherwise VFR prevails.
No AIRMETs currently in effect, however AIRMET Tango may be needed for mod turb downwind of terrain as winds increase.
Issued at 309 PM HST Fri Aug 7 2026
Moderate trades will continue to strengthen to fresh to locally strong speeds by this evening as surface troughing to the northeast weakens and a trough approaching from the southeast enhances the local pressure gradient. A Small Craft Advisory is in effect for locally strong trades across the typical windy channels and waters around Maui County and the Big Island. Fresh to locally strong trades will persist through at least the weekend, with the strongest winds over the southern portion of Hawaiian coastal waters as the surface trough nears.
Background medium- and long-period energy will continue to produce small surf along south-facing shores through tonight. A series of larger, medium- to long-period south swells will cause surf to trend upward along south- and west-facing shores from this weekend into early next week. A moderate, long-period south swell will peak near High Surf Advisory thresholds by midweek.
Along east-facing shores, trade wind swell will remain slightly below seasonal averages today before building this weekend in response to strengthening trades. Surf along north-facing shores will remain flat to tiny through the period, though a small, medium-period north swell could bring a slight bump on Sunday.
Due to a combination of peak monthly high tides and water levels running higher than predicted, minor coastal flooding is possible around the daily peak tide during the afternoon hours late this weekend into early next week along vulnerable shoreline areas.
Small Craft Advisory until 6 PM HST Saturday for Alenuihaha Channel-Big Island Leeward Waters-Big Island Southeast Waters- Maalaea Bay-Pailolo Channel.
