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
55 min ago
Systems named
313
Swell · wind sea
212 · 101
Seas crossing
7 buoys
Storms, last month
203 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 13 ft); its width is the directional spread. Swell Wind sea Storm placed

StationSystems nowSeas crossingStorm placed
Santa Monica Bay, CA 46221 · California · 1 h ago
  • Swell2.8 ft12 sWSW ↑ building
  • Wind sea0.8 ft3 sSE new
Scripps Nearshore, CA 46254 · California · 1 h ago
  • Wind sea2.8 ft8 sW ↓ fading
  • Groundswell0.9 ft13 sWNW new
South Santa Rosa Island, CA 46069 · California · 55 min ago
  • Wind sea5.8 ft11 sWNW ↓ fading
Southeast Papa 46006 · California · 55 min ago
  • Swell4.7 ft11 sWNW ↑ building
  • Swell2.3 ft12 sSSE ↑ building
  • Wind sea1.3 ft4 sSW new
St Georges, CA 46027 · California · 55 min ago
  • Wind sea8.1 ft6 sNNW ↑ building
About 1750 mi to the WNW (295°T)
Tanner Bank, CA 46047 · California · 55 min ago
  • Swell7.4 ft11 sNW new
  • Swell2.2 ft10 sSW new
About 2950 mi to the WNW (297°T)
Topanga Nearshore 46268 · California · 1 h ago
  • Wind sea1.4 ft6 sSW new
  • Groundswell1.4 ft16 sSSW
Torrey Pines Outer, CA 46225 · California · 1 h ago
  • Groundswell2.7 ft15 sSW ↑ building
  • Wind sea2.5 ft7 sWNW ↓ fading
West California 46059 · California · 55 min ago
  • Swell5.3 ft11 sNW ↑ building
  • Swell3.0 ft6 sNE new
  • Swell1.5 ft13 sSSW
80° apartAbout 2350 mi to the NW (312°T)
West Santa Barbara, CA 46054 · California · 55 min ago
  • Swell7.2 ft10 sWNW ↓ fading
About 3250 mi to the WNW (302°T)
Angeles Point, WA (248) 46267 · Pacific Northwest · 1 h ago
  • Swell1.0 ft11 sWNW new
Astoria Canyon, OR (179) 46248 · Pacific Northwest · 1 h ago
  • Swell6.4 ft11 sWNW
Cape Elizabeth, WA 46041 · Pacific Northwest · 55 min ago
  • Swell5.9 ft11 sW
  • Swell1.8 ft11 sN new
About 1150 mi to the SW (225°T)
Clatsop Spit, OR 46243 · Pacific Northwest · 1 h ago
  • Swell5.3 ft10 sW
About 2400 mi to the W (261°T)
Columbia River Bar, OR 46029 · Pacific Northwest · 55 min ago
  • Swell7.4 ft10 sWNW ↑ building
About 500 mi to the NW (308°T)
Grays Harbor, WA 46211 · Pacific Northwest · 1 h ago
  • Swell5.4 ft12 sWNW
Neah Bay, WA 46087 · Pacific Northwest · 55 min ago
  • Swell4.6 ft11 sW new
About 600 mi to the W (267°T)
New Dungeness, WA 46088 · Pacific Northwest · 55 min ago
  • Swell0.6 ft7 sE new
Ocean Station PAPA (166) 46246 · Pacific Northwest · 3 h ago
  • Wind sea5.1 ft8 sWNW ↑ building
  • Groundswell1.8 ft15 sSSE
About 4250 mi to the W (281°T)
Port Orford, OR 46015 · Pacific Northwest · 55 min ago
  • Swell5.3 ft10 sWNW
  • Wind sea3.1 ft4 sN ↑ building
  • Swell2.6 ft12 sESE
55° apartAbout 850 mi to the NW (317°T)