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
160 of 163
Newest spectrum
36 min ago
Systems named
317
Swell · wind sea
210 · 107
Seas crossing
4 buoys
Storms, last month
184 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 · 36 min ago
  • Wind sea0.9 m7 sW
  • Groundswell0.5 m16 sSW
Long Beach Channel, CA 46256 · California · 1 h ago
  • Wind sea0.7 m7 sWSW new
  • Groundswell0.4 m16 sS ↓ fading
  • Groundswell0.3 m16 sNNW ↑ building
Mission Bay West, CA 46258 · California · 36 min ago
  • Wind sea1.0 m8 sW ↓ fading
  • Swell0.8 m11 sW ↑ building
  • Swell0.5 m12 sS
About 3350 nmi to the W (265°T)
Monterey Canyon Outer, CA (156) 46236 · California · 1 h ago
  • Swell2.0 m12 sWNW new
Monterey, CA 46042 · California · 46 min ago
  • Swell3.0 m9 sNW
About 2450 nmi to the NW (312°T)
Oceanside Offshore, CA 46224 · California · 36 min ago
  • Wind sea0.7 m7 sW ↓ fading
  • Swell0.6 m12 sSSW ↑ building
Point Arena, CA 46014 · California · 46 min ago
  • Wind sea2.7 m8 sNW ↑ building
  • Swell0.7 m13 sSSW
About 1350 nmi to the WNW (293°T)
Point Loma South, CA 46232 · California · 36 min ago
  • Wind sea1.1 m7 sW new
  • Groundswell0.8 m16 sWSW new
  • Swell0.5 m12 sSSE new
Point Reyes, CA 46214 · California · 36 min ago
  • Wind sea3.7 m9 sNW
About 3300 nmi to the W (276°T)
Point Sur, CA (157) 46239 · California · 1 h ago
  • Swell3.0 m10 sNW
About 3100 nmi to the WNW (294°T)
Red Beach Nearshore 46275 · California · 1 h ago
  • Wind sea0.8 m7 sW
  • Groundswell0.4 m16 sSSW ↓ fading
San Francisco, CA 46026 · California · 46 min ago
  • Swell2.5 m9 sNW
About 2800 nmi to the W (262°T)
San Nicolas Island, CA 46219 · California · 36 min ago
  • Wind sea1.9 m10 sNW new
  • Swell1.1 m13 sNW ↓ fading
  • Swell0.8 m12 sS
About 2850 nmi to the NW (310°T)
San Pedro South, CA 46253 · California · 36 min ago
  • Wind sea1.1 m8 sWNW
  • Groundswell0.3 m14 sS ↓ fading
San Pedro, CA 46222 · California · 36 min ago
  • Wind sea1.0 m7 sW new
  • Swell0.4 m12 sSSE
  • Groundswell0.3 m14 sWSW
Santa Cruz Basin, CA 46251 · California · 36 min ago
  • Wind sea1.2 m6 sW
  • Groundswell0.7 m14 sWSW ↑ building
Santa Lucia Escarpment, CA 46259 · California · 1 h ago
  • Wind sea2.7 m10 sNW
  • Swell0.6 m12 sSSE new
About 3100 nmi to the NW (304°T)
Santa Maria, CA 46011 · California · 46 min ago
  • Swell2.3 m10 sNW
  • Groundswell0.6 m16 sS new
About 2800 nmi to the NW (310°T)
Santa Monica Basin, CA 46025 · California · 46 min ago
  • Swell0.8 m8 sW ↓ fading
  • Groundswell0.5 m15 sSW
Santa Monica Bay, CA 46221 · California · 36 min ago
  • Wind sea0.8 m6 sWSW ↓ fading
  • Groundswell0.4 m17 sSW ↓ fading