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
44 min ago
Systems named
313
Swell · wind sea
207 · 106
Seas crossing
9 buoys
Storms, last month
224 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
Santa Monica Bay, CA 46221 · California · 1 h ago
  • Groundswell0.6 m14 sSSW
  • Wind sea0.5 m9 sW ↑ building
Scripps Nearshore, CA 46254 · California · 1 h ago
  • Wind sea0.7 m10 sW ↓ fading
  • Swell0.4 m13 sWNW new
South Santa Rosa Island, CA 46069 · California · 44 min ago
  • Swell1.7 m11 sNW
  • Groundswell0.6 m14 sS new
Southeast Papa 46006 · California · 44 min ago
  • Swell1.3 m9 sWNW ↑ building
  • Swell1.1 m6 sWSW new
  • Groundswell0.8 m14 sS
45° apart
St Georges, CA 46027 · California · 44 min ago
  • Swell1.7 m7 sNW
  • Swell0.9 m10 sNW ↓ fading
About 2800 km to the WNW (297°T)
Tanner Bank, CA 46047 · California · 44 min ago
  • Swell1.7 m12 sWNW ↓ fading
About 4800 km to the WNW (300°T)
Topanga Nearshore 46268 · California · 1 h ago
  • Groundswell0.4 m14 sSSW
  • Wind sea0.3 m5 sWSW new
About 7200 km to the SSW (207°T)
Torrey Pines Outer, CA 46225 · California · 1 h ago
  • Swell0.8 m10 sW
  • Groundswell0.6 m15 sSSW ↑ building
West California 46059 · California · 44 min ago
  • Swell1.3 m7 sNNE new
  • Swell1.2 m10 sWNW
80° apartAbout 1700 km to the SSE (153°T)
West Santa Barbara, CA 46054 · California · 44 min ago
  • Swell1.6 m10 sWNW ↓ fading
  • Swell0.6 m10 sSSW new
About 5200 km to the NW (304°T)
Angeles Point, WA (248) 46267 · Pacific Northwest · 1 h ago
  • Wind sea0.3 m9 sW ↓ fading
  • Swell0.3 m11 sNNW new
Astoria Canyon, OR (179) 46248 · Pacific Northwest · 1 h ago
  • Swell1.4 m10 sNW ↓ fading
  • Swell0.7 m11 sWSW new
  • Groundswell0.4 m16 sSW
About 2800 km to the WNW (283°T)
Cape Elizabeth, WA 46041 · Pacific Northwest · 44 min ago
  • Swell1.4 m12 sWNW ↓ fading
  • Wind sea0.3 m3 sSE new
About 6850 km to the WNW (291°T)
Clatsop Spit, OR 46243 · Pacific Northwest · 1 h ago
  • Swell1.2 m10 sW
  • Groundswell0.3 m16 sSW ↓ fading
About 3900 km to the W (261°T)
Columbia River Bar, OR 46029 · Pacific Northwest · 44 min ago
  • Swell1.5 m11 sWNW
About 7350 km to the WNW (294°T)
Grays Harbor, WA 46211 · Pacific Northwest · 1 h ago
  • Wind sea1.2 m10 sWNW ↓ fading
  • Groundswell0.3 m16 sSW new
About 4000 km to the W (275°T)
Neah Bay, WA 46087 · Pacific Northwest · 1 h ago
  • Swell1.1 m11 sW new
  • Groundswell0.3 m16 sSW new
About 1050 km to the WSW (249°T)
New Dungeness, WA 46088 · Pacific Northwest · 44 min agoCalm: no wave system large enough to name
Ocean Station PAPA (166) 46246 · Pacific Northwest · 3 h ago
  • Wind sea1.2 m8 sWNW
  • Groundswell0.5 m14 sSSE ↑ building
About 5550 km to the WNW (283°T)
Port Orford, OR 46015 · Pacific Northwest · 44 min ago
  • Wind sea1.4 m9 sN new
  • Swell1.0 m10 sWSW new
105° apartAbout 6400 km to the WNW (303°T)