🌊 Weather and hazard alerts

Weather brings in National Weather Service alerts for Hawaii (flood, wind, surf, tropical storms, and similar) so you can see what the islands were dealing with during any period.

What it covers

• NWS alerts for all of Hawaii, by type, severity, island, and date, collected since 26 June 2026. A month before that shows no alerts because we have no record of it, not because none were issued. Each alert is counted once, when it first went out, even though the NWS reissues it many times.
• County civil-defense messages and Pacific Tsunami Warning Center messages, counted and dated separately, and never added to the NWS figures.
• Tropical storm history: the closest approaches of tropical storms and hurricanes since 1949, and every NWS tropical watch and warning for Hawaii since 2005.

What it can tell you

What the weather was doing during a period. It shows what the weather was doing at the same time. It does not show that weather caused any change.

What it cannot tell you

It is not a crime or safety measure and is never combined with one. It describes alerts that were issued, never a forecast. For current alerts, always follow the NWS at weather.gov.