Wave intelligence
The systems in the sea
A buoy's significant wave height sums everything in the sea: long groundswell from a storm a thousand miles off, a closer swell, the chop of the local wind. Each buoy's measured directional spectrum is partitioned into those systems, which are followed through time, used to place the storms the swells came from, and checked for seas that cross.
- Stations analysed
- 161 of 162
- Newest spectrum
- 50 min ago
- Systems named
- 301
- Swell · wind sea
- 197 · 104
- Seas crossing
- 11 buoys
- Storms, last month
- 167 placed →
- Window
- The last 4 days
- Method
- Reference
Buoys where the two largest systems now meet at 40° or more with comparable energy, in seas of 1.5 m or more: steeper, less regular waves than the height alone suggests.
Each petal is a system, pointing to where it comes from, north up. Its length grows with height (the ring is 13 ft); its width is the directional spread. Swell Wind sea Storm placed
No station matches. Try another name, or all regions.
| Station | Crossing | Systems |
|---|---|---|
| Georges Bank, MA 44011 · Eastern Seaboard North · 1 h ago | 165° apartthe smaller holds 83% of the larger's energy |
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| Nantucket Offshore, MA 44008 · Eastern Seaboard North · 1 h ago | 165° apartthe smaller holds 67% of the larger's energy |
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| SW Hawaii - 200 NM SW of Kona 51002 · Hawaii · 1 h ago | 160° apartthe smaller holds 43% of the larger's energy |
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| Portlock Bank, AK 46080 · Alaska · 1 h ago | 125° apartthe smaller holds 51% of the larger's energy |
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| Northern Hawaii One 51000 · Hawaii · 1 h ago | 100° apartthe smaller holds 32% of the larger's energy |
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| NW Hawaii - 200 NM NW of Kauai 51001 · Hawaii · 1 h ago | 85° apartthe smaller holds 34% of the larger's energy |
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| Clatsop Spit, OR 46243 · Pacific Northwest · 1 h ago | 70° apartthe smaller holds 36% of the larger's energy |
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| King-Poloa, American Samoa 51214 · Pacific islands · 1 h ago | 65° apartthe smaller holds 40% of the larger's energy |
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| Northwestern Hawaii Two 51101 · Hawaii · 1 h ago | 60° apartthe smaller holds 86% of the larger's energy |
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| Barbers Point, Kalaeloa, HI (238) 51212 · Hawaii · 1 h ago | 55° apartthe smaller holds 88% of the larger's energy |
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| West Washington 46005 · Pacific Northwest · 1 h ago | 45° apartthe smaller holds 35% of the larger's energy |
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