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
56 min ago
Systems named
307
Swell · wind sea
198 · 109
Seas crossing
9 buoys
Storms, last month
206 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 · 56 min ago
  • Swell2.0 m11 sWNW ↑ building
  • Wind sea0.6 m4 sNNW
About 750 nmi to the W (268°T)
Tillamook Bay South Jetty, OR 46278 · Pacific Northwest · 1 h ago
  • Swell1.6 m12 sWNW
  • Wind sea1.1 m8 sWNW new
About 2400 nmi to the WNW (289°T)
Tillamook, OR 46089 · Pacific Northwest · 56 min ago
  • Swell1.8 m11 sWNW
About 1200 nmi to the W (260°T)
Umpqua, OR Offshore 46229 · Pacific Northwest · 1 h ago
  • Swell2.1 m12 sNW ↑ building
About 2450 nmi to the WNW (296°T)
West Oregon 46002 · Pacific Northwest · 56 min ago
  • Swell1.6 m10 sWNW
  • Groundswell0.5 m16 sSSW new
About 3550 nmi to the WNW (297°T)
West Washington 46005 · Pacific Northwest · 56 min ago
  • Swell1.3 m10 sWNW
  • Wind sea1.1 m6 sWSW new
  • Swell0.5 m13 sSSW new
  • +2 more
55° apart
Albatross Bank, AK 46078 · Alaska · 56 min ago
  • Swell1.6 m8 sWSW
  • Groundswell0.4 m15 sSSW new
About 2000 nmi to the WSW (239°T)
Cape Cleare, AK 46076 · Alaska · 56 min ago
  • Swell1.1 m6 sSW ↑ building
  • Groundswell0.3 m14 sENE new
  • Groundswell0.3 m17 sSW new
Cape Edgecumbe, AK 46084 · Alaska · 56 min ago
  • Swell1.7 m10 sWSW
About 700 nmi to the WSW (245°T)
Cape Suckling, AK 46082 · Alaska · 56 min ago
  • Swell1.3 m7 sSW
  • Swell0.8 m5 sE
  • Swell0.4 m12 sSE new
120° apartAbout 2600 nmi to the SSW (213°T)
Central Aleutians, AK 46072 · Alaska · 56 min ago
  • Swell3.5 m10 sSE ↑ building
About 300 nmi to the NNW (331°T)
Central Bering Sea, AK Offshore 46035 · Alaska · 56 min ago
  • Wind sea2.7 m8 sENE
Central Gulf of Alaska 46085 · Alaska · 56 min ago
  • Wind sea1.7 m8 sW ↓ fading
  • Swell1.0 m7 sSSW new
  • Groundswell0.5 m17 sSSW new
65° apart
Fairweather Ground, AK 46083 · Alaska · 56 min ago
  • Swell1.7 m9 sWSW ↑ building
  • Wind sea0.7 m5 sS ↓ fading
About 400 nmi to the WSW (244°T)
Lower Cook Inlet, AK 46108 · Alaska · 1 h ago
  • Wind sea1.4 m6 sWSW new
Portlock Bank, AK 46080 · Alaska · 1 h ago
  • Swell1.3 m8 sSSW
  • Swell1.2 m6 sNW ↑ building
  • Groundswell0.4 m14 sSSW new
95° apartAbout 1900 nmi to the SSW (208°T)
Seal Rocks, AK 46061 · Alaska · 56 min ago
  • Swell0.5 m9 sSSW
  • Swell0.3 m6 sSE new
  • Wind sea0.3 m2 sENE new
  • +2 more
Shelikof Strait, AK 46077 · Alaska · 56 min ago
  • Swell0.7 m5 sSSW new
  • Wind sea0.4 m3 sSW new
Shumagin Islands, AK 46075 · Alaska · 56 min ago
  • Swell1.0 m7 sWSW
  • Swell0.4 m4 sSW new
South Kodiak, AK 46066 · Alaska · 56 min ago
  • Swell1.1 m6 sW ↓ fading
  • Groundswell0.5 m14 sSSW
  • Swell0.4 m4 sWNW new