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
54 min ago
Systems named
313
Swell · wind sea
209 · 104
Seas crossing
7 buoys
Storms, last month
187 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 m7 sW
  • Groundswell0.5 m17 sSW
Long Beach Channel, CA 46256 · California · 1 h ago
  • Wind sea0.5 m7 sWSW new
  • Swell0.5 m12 sS
  • Swell0.3 m12 sNNW
Mission Bay West, CA 46258 · California · 1 h ago
  • Groundswell1.3 m14 sWNW new
  • Swell0.5 m12 sS ↑ building
  • Wind sea0.4 m10 sSSW new
About 8400 km to the SW (223°T)
Monterey Canyon Outer, CA (156) 46236 · California · 1 h ago
  • Swell2.1 m10 sWNW ↑ building
Monterey, CA 46042 · California · 54 min ago
  • Swell2.6 m9 sNW ↓ fading
  • Swell0.7 m10 sSW new
About 4650 km to the NW (314°T)
Oceanside Offshore, CA 46224 · California · 1 h ago
  • Wind sea0.7 m7 sW ↓ fading
  • Groundswell0.5 m16 sSW
  • Swell0.4 m12 sSSW
Point Arena, CA 46014 · California · 54 min ago
  • Wind sea2.8 m7 sNW
About 1800 km to the WNW (299°T)
Point Loma South, CA 46232 · California · 1 h ago
  • Wind sea1.1 m8 sW ↓ fading
  • Groundswell0.8 m16 sSW ↑ building
Point Reyes, CA 46214 · California · 1 h ago
  • Wind sea3.4 m9 sNW
  • Groundswell1.0 m13 sWNW new
About 6200 km to the W (275°T)
Point Sur, CA (157) 46239 · California · 1 h ago
  • Swell3.3 m10 sNW ↑ building
About 5750 km to the WNW (295°T)
Red Beach Nearshore 46275 · California · 1 h ago
  • Wind sea0.7 m7 sW ↓ fading
  • Groundswell0.6 m16 sSW ↑ building
San Francisco, CA 46026 · California · 54 min ago
  • Swell2.2 m8 sNW ↓ fading
  • Swell0.7 m10 sSW new
About 5150 km to the W (262°T)
San Nicolas Island, CA 46219 · California · 1 h ago
  • Groundswell2.2 m13 sNW
  • Groundswell0.7 m16 sSSW
About 5250 km to the NW (309°T)
San Pedro South, CA 46253 · California · 1 h ago
  • Wind sea0.9 m8 sW ↓ fading
  • Swell0.3 m12 sS ↓ fading
San Pedro, CA 46222 · California · 1 h ago
  • Wind sea1.0 m7 sW new
  • Swell0.4 m12 sSSE
Santa Cruz Basin, CA 46251 · California · 1 h ago
  • Wind sea1.3 m8 sW ↑ building
  • Groundswell0.7 m14 sSW ↑ building
About 9100 km to the SSW (203°T)
Santa Lucia Escarpment, CA 46259 · California · 1 h ago
  • Swell2.2 m11 sNW ↓ fading
  • Wind sea0.6 m8 sWSW new
About 5750 km to the NW (304°T)
Santa Maria, CA 46011 · California · 54 min ago
  • Swell2.1 m10 sWNW new
About 5250 km to the NW (310°T)
Santa Monica Basin, CA 46025 · California · 54 min ago
  • Swell0.8 m7 sW
  • Groundswell0.6 m16 sSSW new
Santa Monica Bay, CA 46221 · California · 1 h ago
  • Wind sea0.8 m7 sWSW new
  • Groundswell0.5 m17 sSW ↑ building