Surf, shore by shore
The NWS Surf Zone Forecast: face heights in feet, by the direction a shore faces, on one scale across every island.
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Tides
NOAA's predicted tide for the next two days, at the harbor nearest the island you follow.
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Vog and box jellyfish
Vog, measured as PM2.5 — and the box jellyfish window, which follows the moon.
Vog
Volcanic haze from Kīlauea, carried around the state by the trades. Worst on the Kona and Kaʻū side, where the wind wraps it down the leeward coast.
Reading air quality monitors…
Box jellyfish
The most predictable hazard in Hawaiʻi, and the one most visitors are stung by.
Satellite and station loops
GOES-18 satellite and NWS station loops — the wider picture. For rain right now, the radar map on Now is the sharper tool.
Earthquakes and volcanoes
Straight from the USGS: earthquakes in the last 24 hours, and any volcano sitting above normal alert level.