Bluegraph
SIMarineUS

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
162 of 164
Newest spectrum
50 min ago
Systems named
316
Swell · wind sea
217 · 99
Seas crossing
4 buoys
Storms, last month
212 placed →
Window
The last 4 days
Method
Reference

The wave systems in each buoy's latest spectrum, largest first, and whether each is building or fading.

Each petal is a system, pointing to where it comes from, north up. Its length grows with height (the ring is 4 m); its width is the directional spread. Swell Wind sea Storm placed

StationSystems nowSeas crossingStorm placed
Stonewall Bank, OR 46050 · Pacific Northwest · 1 h ago
  • Swell1.8 m12 sNW
  • Wind sea0.6 m4 sN
About 1400 km to the W (268°T)
Tillamook Bay South Jetty, OR 46278 · Pacific Northwest · 1 h ago
  • Swell1.6 m12 sWNW
  • Wind sea0.4 m5 sNW new
About 4450 km to the WNW (289°T)
Tillamook, OR 46089 · Pacific Northwest · 1 h ago
  • Swell1.5 m10 sWNW ↓ fading
About 2150 km to the W (260°T)
Umpqua, OR Offshore 46229 · Pacific Northwest · 1 h ago
  • Swell1.7 m11 sWNW
  • Wind sea0.8 m4 sN ↓ fading
About 4600 km to the WNW (297°T)
West Oregon 46002 · Pacific Northwest · 1 h ago
  • Swell1.4 m11 sWNW new
  • Groundswell0.5 m15 sS
About 6250 km to the WNW (296°T)
West Washington 46005 · Pacific Northwest · 1 h ago
  • Swell1.3 m12 sNW ↑ building
  • Wind sea1.2 m5 sWSW ↑ building
  • Swell0.8 m11 sS
75° apart
Albatross Bank, AK 46078 · Alaska · 1 h ago
  • Swell1.4 m7 sWSW ↓ fading
  • Groundswell0.5 m14 sSSE new
About 3450 km to the WSW (240°T)
Cape Cleare, AK 46076 · Alaska · 1 h ago
  • Swell1.2 m8 sSW new
  • Swell0.7 m7 sSSE new
Cape Edgecumbe, AK 46084 · Alaska · 1 h ago
  • Swell2.0 m9 sWSW ↑ building
About 1300 km to the WSW (245°T)
Cape Suckling, AK 46082 · Alaska · 1 h ago
  • Wind sea1.6 m7 sSSW ↑ building
  • Groundswell0.4 m16 sS new
About 4700 km to the SSW (213°T)
Central Aleutians, AK 46072 · Alaska · 50 min ago
  • Swell3.4 m9 sSSE
  • Wind sea2.6 m7 sENE new
100° apart
Central Bering Sea, AK Offshore 46035 · Alaska · 1 h ago
  • Wind sea2.7 m8 sE
Central Gulf of Alaska 46085 · Alaska · 1 h ago
  • Swell2.0 m8 sW
  • Groundswell0.5 m16 sS
Fairweather Ground, AK 46083 · Alaska · 1 h ago
  • Swell1.9 m8 sSW
About 750 km to the WSW (244°T)
Lower Cook Inlet, AK 46108 · Alaska · 1 h ago
  • Wind sea1.3 m6 sSW
Portlock Bank, AK 46080 · Alaska · 1 h ago
  • Swell1.2 m8 sSSW
  • Swell0.8 m6 sNW new
About 3500 km to the SSW (208°T)
Seal Rocks, AK 46061 · Alaska · 1 h ago
  • Swell0.6 m8 sSSW
  • Swell0.5 m4 sSE ↑ building
  • Groundswell0.2 m16 sSW new
  • +1 more
Shelikof Strait, AK 46077 · Alaska · 1 h ago
  • Wind sea0.9 m6 sSSW
Shumagin Islands, AK 46075 · Alaska · 1 h ago
  • Swell1.0 m7 sW ↓ fading
  • Groundswell0.4 m14 sSSW ↑ building
  • Groundswell0.3 m14 sNE new
South Kodiak, AK 46066 · Alaska · 1 h ago
  • Swell1.1 m6 sWNW
  • Swell0.4 m11 sS
  • Wind sea0.3 m3 sSSW new