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
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 13 ft); its width is the directional spread. Swell Wind sea Storm placed

StationSystems nowSeas crossingStorm placed
Leucadia Nearshore 46274 · California · 1 h ago
  • Wind sea3.0 ft7 sW
  • Groundswell1.5 ft17 sSW
Long Beach Channel, CA 46256 · California · 1 h ago
  • Wind sea1.8 ft7 sWSW new
  • Swell1.8 ft12 sS
  • Swell1.0 ft12 sNNW
Mission Bay West, CA 46258 · California · 1 h ago
  • Groundswell4.3 ft14 sWNW new
  • Swell1.5 ft12 sS ↑ building
  • Wind sea1.2 ft10 sSSW new
About 5250 mi to the SW (223°T)
Monterey Canyon Outer, CA (156) 46236 · California · 1 h ago
  • Swell7.0 ft10 sWNW ↑ building
Monterey, CA 46042 · California · 52 min ago
  • Swell8.7 ft9 sNW ↓ fading
  • Swell2.3 ft10 sSW new
About 2900 mi to the NW (314°T)
Oceanside Offshore, CA 46224 · California · 1 h ago
  • Wind sea2.2 ft7 sW ↓ fading
  • Groundswell1.5 ft16 sSW
  • Swell1.3 ft12 sSSW
Point Arena, CA 46014 · California · 52 min ago
  • Wind sea9.3 ft7 sNW
About 1150 mi to the WNW (299°T)
Point Loma South, CA 46232 · California · 1 h ago
  • Wind sea3.5 ft8 sW ↓ fading
  • Groundswell2.5 ft16 sSW ↑ building
Point Reyes, CA 46214 · California · 1 h ago
  • Wind sea11.3 ft9 sNW
  • Groundswell3.3 ft13 sWNW new
About 3850 mi to the W (275°T)
Point Sur, CA (157) 46239 · California · 1 h ago
  • Swell10.8 ft10 sNW ↑ building
About 3550 mi to the WNW (295°T)
Red Beach Nearshore 46275 · California · 1 h ago
  • Wind sea2.2 ft7 sW ↓ fading
  • Groundswell1.9 ft16 sSW ↑ building
San Francisco, CA 46026 · California · 52 min ago
  • Swell7.3 ft8 sNW ↓ fading
  • Swell2.2 ft10 sSW new
About 3200 mi to the W (262°T)
San Nicolas Island, CA 46219 · California · 1 h ago
  • Groundswell7.3 ft13 sNW
  • Groundswell2.1 ft16 sSSW
About 3250 mi to the NW (309°T)
San Pedro South, CA 46253 · California · 1 h ago
  • Wind sea3.1 ft8 sW ↓ fading
  • Swell1.0 ft12 sS ↓ fading
San Pedro, CA 46222 · California · 1 h ago
  • Wind sea3.2 ft7 sW new
  • Swell1.3 ft12 sSSE
Santa Cruz Basin, CA 46251 · California · 1 h ago
  • Wind sea4.4 ft8 sW ↑ building
  • Groundswell2.2 ft14 sSW ↑ building
About 5650 mi to the SSW (203°T)
Santa Lucia Escarpment, CA 46259 · California · 1 h ago
  • Swell7.3 ft11 sNW ↓ fading
  • Wind sea1.8 ft8 sWSW new
About 3550 mi to the NW (304°T)
Santa Maria, CA 46011 · California · 52 min ago
  • Swell7.1 ft10 sWNW new
About 3250 mi to the NW (310°T)
Santa Monica Basin, CA 46025 · California · 52 min ago
  • Swell2.7 ft7 sW
  • Groundswell2.0 ft16 sSSW new
Santa Monica Bay, CA 46221 · California · 1 h ago
  • Wind sea2.7 ft7 sWSW new
  • Groundswell1.6 ft17 sSW ↑ building