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 164
Newest spectrum
23 min ago
Systems named
316
Swell · wind sea
240 · 76
Seas crossing
7 buoys
Storms, last month
211 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 · 23 min ago
  • Swell1.4 ft10 sW
  • Groundswell1.2 ft15 sSSW ↓ fading
  • Swell1.1 ft11 sSSW new
Scripps Nearshore, CA 46254 · California · 1 h ago
  • Swell2.5 ft11 sW
  • Wind sea0.7 ft4 sWSW new
South Santa Rosa Island, CA 46069 · California · 1 h ago
  • Wind sea5.5 ft11 sWNW
Southeast Papa 46006 · California · 1 h ago
  • Swell4.1 ft8 sWNW new
  • Swell1.8 ft13 sSE ↓ fading
  • Wind sea1.6 ft4 sS ↑ building
St Georges, CA 46027 · California · 33 min ago
  • Swell5.7 ft7 sNE new
  • Swell4.4 ft10 sNE new
About 1700 mi to the WNW (296°T)
Tanner Bank, CA 46047 · California · 1 h ago
  • Swell7.0 ft10 sNW
About 2900 mi to the WNW (299°T)
Topanga Nearshore 46268 · California · 1 h ago
  • Groundswell1.3 ft15 sSSW
  • Swell0.7 ft4 sWSW new
  • Swell0.5 ft4 sSW new
About 4500 mi to the SSW (207°T)
Torrey Pines Outer, CA 46225 · California · 1 h ago
  • Wind sea2.3 ft10 sW new
  • Groundswell1.6 ft14 sSSW new
  • Swell1.2 ft12 sWNW ↓ fading
About 1900 mi to the W (279°T)
West California 46059 · California · 1 h ago
  • Swell5.0 ft11 sNW
  • Wind sea3.5 ft6 sNNE
  • Groundswell1.8 ft14 sSE ↑ building
80° apartAbout 1400 mi to the NW (314°T)
West Santa Barbara, CA 46054 · California · 33 min ago
  • Swell7.3 ft10 sWNW
  • Swell1.7 ft5 sW new
About 3250 mi to the WNW (302°T)
Angeles Point, WA (248) 46267 · Pacific Northwest · 1 h ago
  • Swell1.9 ft10 sWNW ↑ building
Astoria Canyon, OR (179) 46248 · Pacific Northwest · 23 min ago
  • Swell5.0 ft10 sWNW
  • Groundswell1.4 ft17 sSW new
About 2050 mi to the W (276°T)
Cape Elizabeth, WA 46041 · Pacific Northwest · 1 h ago
  • Swell5.9 ft10 sWNW
About 900 mi to the SW (221°T)
Clatsop Spit, OR 46243 · Pacific Northwest · 1 h ago
  • Swell4.0 ft11 sWNW new
  • Groundswell1.1 ft16 sSW new
About 2400 mi to the W (260°T)
Columbia River Bar, OR 46029 · Pacific Northwest · 1 h ago
  • Swell5.3 ft11 sWNW
Grays Harbor, WA 46211 · Pacific Northwest · 23 min ago
  • Swell4.2 ft10 sWNW
  • Swell1.3 ft7 sWSW new
Neah Bay, WA 46087 · Pacific Northwest · 3 h ago
  • Swell4.8 ft10 sW
About 850 mi to the SW (233°T)
New Dungeness, WA 46088 · Pacific Northwest · 33 min ago
  • Swell0.8 ft11 sE new
Ocean Station PAPA (166) 46246 · Pacific Northwest · 1 h ago
  • Wind sea4.0 ft9 sWNW
  • Swell1.4 ft12 sSE ↓ fading
  • Groundswell1.0 ft16 sSSW new
About 3400 mi to the WNW (282°T)
Port Orford, OR 46015 · Pacific Northwest · 1 h ago
  • Swell4.5 ft11 sWNW ↓ fading
  • Wind sea4.1 ft6 sN ↑ building
50° apartAbout 2700 mi to the WNW (303°T)