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
52 min ago
Systems named
311
Swell · wind sea
204 · 107
Seas crossing
6 buoys
Storms, last month
190 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
Bodega Bay, CA 46013 · California · 52 min ago
  • Wind sea7.9 ft9 sNW
About 1500 mi to the WNW (301°T)
Cape Mendocino, CA (094) 46213 · California · 1 h ago
  • Groundswell7.8 ft13 sNW ↑ building
  • Wind sea6.1 ft7 sNW new
About 2950 mi to the WNW (284°T)
Cape San Martin, CA 46028 · California · 52 min ago
  • Swell10.7 ft10 sNW
Capistrano Beach Nearshore, CA 46285 · California · 1 h ago
  • Groundswell2.0 ft14 sSW
  • Wind sea1.9 ft9 sW new
Del Mar Nearshore, CA 46266 · California · 1 h ago
  • Wind sea3.0 ft7 sW
  • Groundswell2.0 ft14 sWSW ↑ building
Diablo Canyon, CA 46215 · California · 1 h ago
  • Wind sea6.9 ft10 sWNW
About 1850 mi to the SW (235°T)
East Santa Barbara, CA 46053 · California · 1 h ago
  • Swell3.2 ft8 sWSW new
  • Groundswell1.4 ft14 sW
  • Swell0.9 ft11 sE new
Eel River, CA 46022 · California · 52 min ago
  • Swell6.6 ft11 sNW
  • Wind sea4.7 ft7 sNNW ↑ building
About 2900 mi to the WNW (302°T)
Green Beach Offshore 46277 · California · 1 h ago
  • Wind sea2.4 ft7 sWSW ↓ fading
  • Groundswell1.4 ft16 sSW ↓ fading
  • Swell1.4 ft12 sS new
Harvest, CA (071) 46218 · California · 1 h ago
  • Wind sea7.3 ft10 sNW
  • Groundswell2.2 ft16 sS
About 2200 mi to the WNW (304°T)
Leucadia Nearshore 46274 · California · 1 h ago
  • Wind sea2.7 ft7 sW
  • Groundswell1.8 ft16 sSW
Long Beach Channel, CA 46256 · California · 1 h ago
  • Groundswell1.8 ft14 sS ↑ building
  • Wind sea1.5 ft7 sWSW ↓ fading
  • Groundswell1.1 ft15 sNNW
Mission Bay West, CA 46258 · California · 1 h ago
  • Groundswell4.3 ft13 sWNW ↑ building
  • Groundswell2.0 ft14 sS ↑ building
Monterey Canyon Outer, CA (156) 46236 · California · 1 h ago
  • Swell6.2 ft10 sWNW ↓ fading
  • Wind sea2.5 ft6 sWNW ↑ building
Monterey, CA 46042 · California · 52 min ago
  • Swell9.0 ft10 sNW
About 2950 mi to the NW (311°T)
Oceanside Offshore, CA 46224 · California · 1 h ago
  • Groundswell2.7 ft14 sWSW new
  • Wind sea0.7 ft3 sS new
Point Arena, CA 46014 · California · 52 min ago
  • Wind sea9.4 ft8 sNW
About 1550 mi to the WNW (293°T)
Point Loma South, CA 46232 · California · 1 h ago
  • Wind sea3.6 ft7 sW
  • Groundswell2.2 ft14 sWSW
  • Swell1.4 ft11 sW new
  • +1 more
Point Reyes, CA 46214 · California · 1 h ago
  • Wind sea10.4 ft9 sNW ↓ fading
  • Swell4.9 ft13 sWNW new
About 3800 mi to the W (275°T)
Point Sur, CA (157) 46239 · California · 1 h ago
  • Swell9.3 ft10 sNW
About 3550 mi to the WNW (300°T)