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
32 min ago
Systems named
303
Swell · wind sea
202 · 101
Seas crossing
5 buoys
Storms, last month
209 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
  • Swell0.5 m11 sWSW ↑ building
  • Groundswell0.4 m15 sSSW
Scripps Nearshore, CA 46254 · California · 1 h ago
  • Groundswell0.8 m13 sW ↑ building
South Santa Rosa Island, CA 46069 · California · 1 h ago
  • Wind sea1.9 m11 sWNW
Southeast Papa 46006 · California · 1 h ago
  • Swell1.2 m10 sWNW ↓ fading
  • Groundswell0.7 m14 sS
  • Swell0.6 m5 sWSW new
  • +1 more
St Georges, CA 46027 · California · 1 h ago
  • Swell1.7 m11 sNW new
  • Swell1.6 m6 sNW ↓ fading
About 1500 nmi to the WNW (297°T)
Tanner Bank, CA 46047 · California · 1 h ago
  • Swell2.2 m10 sNW
About 2550 nmi to the WNW (299°T)
Topanga Nearshore 46268 · California · 1 h ago
  • Groundswell0.4 m15 sSSW
  • Wind sea0.3 m5 sWSW new
About 3900 nmi to the SSW (207°T)
Torrey Pines Outer, CA 46225 · California · 32 min ago
  • Wind sea0.7 m10 sW new
  • Groundswell0.5 m14 sSSW
  • Swell0.4 m12 sWNW ↓ fading
About 1450 nmi to the WSW (258°T)
West California 46059 · California · 1 h ago
  • Swell1.5 m11 sNW ↑ building
  • Wind sea1.2 m6 sNNE
65° apartAbout 1800 nmi to the NW (313°T)
West Santa Barbara, CA 46054 · California · 42 min ago
  • Swell2.4 m10 sE new
About 3000 nmi to the WNW (295°T)
Angeles Point, WA (248) 46267 · Pacific Northwest · 1 h ago
  • Swell0.3 m11 sWNW ↓ fading
Astoria Canyon, OR (179) 46248 · Pacific Northwest · 32 min ago
  • Swell1.6 m10 sWNW
  • Groundswell0.5 m17 sSW new
Cape Elizabeth, WA 46041 · Pacific Northwest · 1 h ago
  • Swell1.7 m10 sWNW ↑ building
  • Groundswell0.4 m16 sSW ↑ building
About 2400 nmi to the WNW (290°T)
Clatsop Spit, OR 46243 · Pacific Northwest · 1 h ago
  • Swell1.2 m11 sWNW ↓ fading
  • Groundswell0.4 m16 sSSW
  • Wind sea0.4 m5 sNW new
About 2100 nmi to the W (261°T)
Columbia River Bar, OR 46029 · Pacific Northwest · 1 h ago
  • Swell1.5 m11 sWNW
Grays Harbor, WA 46211 · Pacific Northwest · 1 h ago
  • Swell1.4 m11 sWNW ↑ building
  • Groundswell0.3 m16 sSW
Neah Bay, WA 46087 · Pacific Northwest · 2 h ago
  • Swell1.5 m10 sW
About 700 nmi to the SW (233°T)
New Dungeness, WA 46088 · Pacific Northwest · 1 h ago
  • Swell0.3 m11 sWSW new
Ocean Station PAPA (166) 46246 · Pacific Northwest · 32 min ago
  • Wind sea1.2 m9 sWNW
  • Swell0.4 m12 sSE ↓ fading
  • Groundswell0.3 m16 sSSW new
About 2950 nmi to the WNW (282°T)
Port Orford, OR 46015 · Pacific Northwest · 42 min ago
  • Swell1.9 m11 sENE new
About 750 nmi to the NW (322°T)