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
161 of 163
Newest spectrum
45 min ago
Systems named
321
Swell · wind sea
214 · 107
Seas crossing
6 buoys
Storms, last month
189 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
Scripps Nearshore, CA 46254 · California · 1 h ago
  • Wind sea1.0 m7 sWNW
  • Groundswell0.4 m14 sWNW ↑ building
South Santa Rosa Island, CA 46069 · California · 45 min ago
  • Wind sea2.4 m10 sNW ↑ building
  • Groundswell0.7 m15 sSSW
Southeast Papa 46006 · California · 45 min ago
  • Swell1.7 m11 sWNW
  • Groundswell0.8 m16 sSSE
St Georges, CA 46027 · California · 45 min ago
  • Swell1.9 m12 sNW
  • Wind sea1.3 m5 sNNW
About 1500 nmi to the WNW (297°T)
Tanner Bank, CA 46047 · California · 45 min ago
  • Swell2.7 m13 sWNW new
About 2550 nmi to the WNW (299°T)
Topanga Nearshore 46268 · California · 1 h ago
  • Wind sea0.4 m6 sWSW ↓ fading
  • Groundswell0.4 m16 sSSW
Torrey Pines Outer, CA 46225 · California · 1 h ago
  • Wind sea1.2 m7 sW
  • Swell0.5 m12 sSSW new
  • Groundswell0.4 m14 sWNW ↓ fading
  • +1 more
West California 46059 · California · 45 min ago
  • Swell1.7 m10 sNW
  • Wind sea1.1 m5 sN ↑ building
  • Groundswell0.6 m15 sS ↓ fading
50° apartAbout 900 nmi to the SSE (151°T)
West Santa Barbara, CA 46054 · California · 45 min ago
  • Swell1.6 m10 sNW ↓ fading
  • Swell1.0 m13 sW ↓ fading
  • Swell0.8 m4 sNW new
  • +2 more
About 3000 nmi to the WNW (294°T)
Angeles Point, WA (248) 46267 · Pacific Northwest · 1 h ago
  • Swell0.2 m11 sW
  • Swell0.2 m10 sNNE new
Astoria Canyon, OR (179) 46248 · Pacific Northwest · 1 h ago
  • Wind sea1.4 m10 sWNW new
  • Swell0.8 m12 sWNW ↓ fading
  • Swell0.5 m12 sSW new
  • +1 more
Cape Elizabeth, WA 46041 · Pacific Northwest · 45 min ago
  • Swell1.9 m10 sWNW ↑ building
About 850 nmi to the SW (220°T)
Clatsop Spit, OR 46243 · Pacific Northwest · 1 h ago
  • Swell1.3 m12 sW ↓ fading
  • Wind sea0.7 m6 sW new
  • Groundswell0.5 m18 sSSW new
About 2100 nmi to the W (261°T)
Columbia River Bar, OR 46029 · Pacific Northwest · 45 min ago
  • Swell1.7 m11 sWNW ↓ fading
  • Swell0.4 m11 sS new
Grays Harbor, WA 46211 · Pacific Northwest · 1 h ago
  • Swell1.5 m12 sW
  • Wind sea0.4 m8 sSW ↓ fading
Neah Bay, WA 46087 · Pacific Northwest No spectrum in the last six hours
New Dungeness, WA 46088 · Pacific Northwest · 45 min ago
  • Swell0.2 m11 sE new
Ocean Station PAPA (166) 46246 · Pacific Northwest · 2 h ago
  • Wind sea1.6 m9 sWNW ↓ fading
  • Swell0.5 m12 sSSE
Port Orford, OR 46015 · Pacific Northwest · 45 min ago
  • Swell2.4 m11 sWNW
About 750 nmi to the NW (317°T)
Stonewall Bank, OR 46050 · Pacific Northwest · 45 min ago
  • Swell1.7 m10 sWNW new
  • Swell0.7 m13 sNNW ↓ fading
About 800 nmi to the W (268°T)