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
41 min ago
Systems named
321
Swell · wind sea
214 · 107
Seas crossing
6 buoys
Storms, last month
186 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
Leucadia Nearshore 46274 · California · 1 h ago
  • Wind sea0.9 m8 sW
  • Groundswell0.4 m16 sSW
  • Swell0.3 m12 sSW
Long Beach Channel, CA 46256 · California · 1 h ago
  • Groundswell0.5 m15 sS ↑ building
  • Wind sea0.5 m7 sWSW ↓ fading
  • Groundswell0.3 m15 sNNW
Mission Bay West, CA 46258 · California · 1 h ago
  • Groundswell1.5 m14 sW ↑ building
  • Swell0.4 m12 sS ↓ fading
Monterey Canyon Outer, CA (156) 46236 · California · 1 h ago
  • Wind sea2.2 m9 sWNW
Monterey, CA 46042 · California · 41 min ago
  • Swell2.8 m10 sNW
About 4600 km to the NW (313°T)
Oceanside Offshore, CA 46224 · California · 1 h ago
  • Wind sea0.7 m6 sW ↓ fading
  • Groundswell0.6 m15 sSSW
Point Arena, CA 46014 · California · 41 min ago
  • Wind sea2.9 m8 sNW
About 2550 km to the WNW (294°T)
Point Loma South, CA 46232 · California · 1 h ago
  • Wind sea1.1 m8 sW ↓ fading
  • Groundswell0.6 m17 sSSW ↓ fading
  • Groundswell0.6 m15 sW new
  • +1 more
Point Reyes, CA 46214 · California · 1 h ago
  • Wind sea3.2 m9 sNW
About 6000 km to the W (281°T)
Point Sur, CA (157) 46239 · California · 1 h ago
  • Swell3.2 m10 sNW
About 5750 km to the WNW (299°T)
Red Beach Nearshore 46275 · California · 1 h ago
  • Groundswell0.6 m16 sSW ↑ building
  • Wind sea0.6 m7 sW ↓ fading
San Francisco, CA 46026 · California · 41 min ago
  • Swell2.1 m9 sNW ↓ fading
About 5200 km to the W (262°T)
San Nicolas Island, CA 46219 · California · 1 h ago
  • Groundswell2.2 m13 sNW ↑ building
  • Wind sea0.8 m10 sSSW ↑ building
About 5250 km to the NW (309°T)
San Pedro South, CA 46253 · California · 1 h ago
  • Wind sea0.9 m8 sWNW
  • Groundswell0.2 m15 sSSW ↓ fading
  • Swell0.2 m12 sSSE new
San Pedro, CA 46222 · California · 1 h ago
  • Wind sea0.9 m8 sW
  • Groundswell0.4 m15 sSSE
  • Groundswell0.2 m15 sW
Santa Cruz Basin, CA 46251 · California · 1 h ago
  • Wind sea1.2 m7 sWNW
  • Groundswell0.6 m14 sWSW new
Santa Lucia Escarpment, CA 46259 · California · 1 h ago
  • Swell2.1 m10 sNW ↓ fading
  • Groundswell0.6 m16 sSSW
About 5750 km to the NW (307°T)
Santa Maria, CA 46011 · California · 41 min ago
  • Swell2.0 m10 sNW new
  • Groundswell0.6 m13 sSSE new
About 5200 km to the WNW (301°T)
Santa Monica Basin, CA 46025 · California · 41 min ago
  • Swell0.7 m8 sW
  • Swell0.5 m13 sSW ↓ fading
  • Groundswell0.3 m16 sE new
  • +1 more
Santa Monica Bay, CA 46221 · California · 1 h ago
  • Wind sea0.8 m8 sWSW new
  • Groundswell0.4 m16 sSSW ↓ fading