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
162 of 163
Newest spectrum
35 min ago
Systems named
313
Swell · wind sea
203 · 110
Seas crossing
4 buoys
Storms, last month
181 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
Yucatan Basin, MX 42056 · Gulf of Mexico · 35 min ago
  • Wind sea1.7 m6 sSE ↑ building
Arecibo, PR 41121 · Caribbean and tropical Atlantic · 1 h ago
  • Wind sea0.9 m5 sENE ↓ fading
  • Swell0.7 m10 sNNE new
Caribbean Valley 42060 · Caribbean and tropical Atlantic · 35 min ago
  • Wind sea1.0 m5 sENE ↓ fading
  • Swell0.3 m11 sN ↓ fading
Central Caribbean 42058 · Caribbean and tropical Atlantic · 35 min ago
  • Wind sea1.6 m7 sE
East Bahamas 41046 · Caribbean and tropical Atlantic · 35 min ago
  • Wind sea0.5 m4 sESE
  • Swell0.5 m10 sN new
  • Swell0.5 m8 sESE ↓ fading
  • +2 more
About 900 nmi to the W (278°T)
NE Puerto Rico 41043 · Caribbean and tropical Atlantic · 35 min ago
  • Wind sea1.0 m5 sE new
  • Swell0.9 m11 sNNE ↑ building
  • Groundswell0.4 m17 sNNE new
NE St Martin 41044 · Caribbean and tropical Atlantic · 35 min ago
  • Swell1.0 m11 sN new
  • Wind sea1.0 m6 sE
  • Groundswell0.4 m16 sNNE ↓ fading
North Equatorial One 41040 · Caribbean and tropical Atlantic · 35 min ago
  • Swell1.2 m11 sENE
  • Wind sea0.4 m4 sE new
  • Swell0.4 m6 sNE new
  • +1 more
North Equatorial Two 41041 · Caribbean and tropical Atlantic · 35 min ago
  • Swell1.3 m10 sENE
About 2150 nmi to the N (005°T)
Western Caribbean 42057 · Caribbean and tropical Atlantic · 35 min ago
  • Swell1.4 m7 sESE
  • Wind sea0.3 m4 sENE new
Bodega Bay, CA 46013 · California · 35 min ago
  • Wind sea3.0 m8 sNW
About 1300 nmi to the WNW (302°T)
Cape Mendocino, CA (094) 46213 · California · 55 min ago
  • Groundswell2.2 m13 sNW
  • Wind sea1.0 m5 sNNW ↑ building
About 2500 nmi to the W (276°T)
Cape San Martin, CA 46028 · California · 35 min ago
  • Wind sea3.1 m10 sNW
About 1350 nmi to the NW (314°T)
Capistrano Beach Nearshore, CA 46285 · California · 55 min ago
  • Wind sea0.8 m7 sWSW ↑ building
  • Groundswell0.7 m15 sSW
Del Mar Nearshore, CA 46266 · California · 55 min ago
  • Wind sea0.8 m8 sW new
  • Groundswell0.5 m17 sWSW ↑ building
Diablo Canyon, CA 46215 · California · 55 min ago
  • Swell2.1 m12 sWNW
About 1850 nmi to the SW (236°T)
East Santa Barbara, CA 46053 · California · 35 min ago
  • Swell1.2 m6 sWSW ↓ fading
  • Groundswell0.3 m14 sNW new
Eel River, CA 46022 · California · 35 min ago
  • Swell1.9 m10 sNW ↑ building
  • Swell0.7 m4 sNW
Green Beach Offshore 46277 · California · 55 min ago
  • Wind sea1.0 m9 sW
  • Groundswell0.6 m15 sSW new
Harvest, CA (071) 46218 · California · 55 min ago
  • Wind sea2.5 m10 sNW ↑ building
About 1950 nmi to the WNW (297°T)