First published 9/19/2026, 1:19:15 AM · Last updated 9/19/2026, 1:19:15 AM

Small Craft Advisory issued by NWS Honolulu (Sep 18–19, 2026)

National Weather Service Honolulu issued a Small Craft Advisory (title indicates effective Sep 18 3:05PM HST until Sep 19 6:00PM HST). Advises hazardous marine conditions for small vessels in the NWS Honolulu area.

Categories: severe-weather-and-natural-disasters

Generated scores

Scores are based on the cited reporting and use a 1–10 scale. Read the methodology.

Confidence: 9/10How certain the assessment is based on the clarity and evidence in the cited reporting.
Geographic reach: 2/10How widely the event reaches, from a local area (1) to worldwide impact (10).
Global importance: 6/10The event's broader significance, from limited importance (1) to major global importance (10).
Impact magnitude: 3/10The scale or severity of the real-world impact, from minor (1) to extreme (10).
Positivity: 2/10How harmful or beneficial the event is, from strongly harmful (1) to strongly positive (10).
Urgency: 7/10How time-sensitive the event is, from low urgency (1) to immediate attention needed (10).

Why it matters

Small Craft Advisories warn of hazardous seas and/or winds that can endanger small vessels, affect coastal activities, and disrupt local marine and ferry operations. Mariners and coastal users should take precautions or avoid going out on the water during the advisory period.

Location

Sources

Small Craft Advisory issued September 18 at 3:05PM HST until September 19 at 6:00PM HST by NWS Honolulu HI

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