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Forecast track and cone
The cone from the National Hurricane Center's own GIS feed, redrawn at each advisory. It shows where the centre may go — not where the impacts reach, which extend far beyond it.
Your island
Alerts are pulled zone by zone from the National Weather Service. Pick your island, then narrow to your area.
Timeline
Each bar is a real alert with the weather service's own start and end times. Bars fading out on the right have no published end yet.
When surge meets the tide
Storm surge rides on top of whatever the tide is already doing. The same surge is a nuisance at low water and a flooded street at high. These are NOAA tide predictions for Honolulu Harbour.
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Predictions are astronomical only — they do not include the surge itself. Tides vary between islands and harbours; treat Honolulu as the reference, not your exact shoreline.
Every alert covering you
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What to do next
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Take this with you
When the power goes and the phone is dying, this page is not what you need — this card is. Print it for the fridge, or screenshot it so it survives losing the network.
Radar and stream gages
Radar for your island, and the USGS stream gages nearest you. Flash flooding is what actually kills people here, and it starts in the gulches before anyone sees it on the coast. There is no radar on Oʻahu — the Molokaʻi site covers it.
Shelters
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After it passes
More people are hurt in the days after a Hawaiʻi storm than during it — by generators, downed lines, floodwater and cleanup. Ordered by what harms you soonest.
Radio, outages and county contacts
Cell towers hold on batteries for hours, not days. Write these down.