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
42 min ago
Systems named
300
Swell · wind sea
194 · 106
Seas crossing
3 buoys
Storms, last month
180 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
Yucatan Basin, MX 42056 · Gulf of Mexico · 52 min ago
  • Wind sea5.6 ft7 sSE
Arecibo, PR 41121 · Caribbean and tropical Atlantic · 1 h ago
  • Wind sea3.5 ft10 sNE new
Caribbean Valley 42060 · Caribbean and tropical Atlantic · 52 min ago
  • Wind sea3.1 ft5 sENE ↓ fading
  • Swell1.2 ft10 sN ↓ fading
Central Caribbean 42058 · Caribbean and tropical Atlantic · 52 min ago
  • Wind sea5.1 ft6 sE new
East Bahamas 41046 · Caribbean and tropical Atlantic · 52 min ago
  • Swell3.0 ft10 sE ↑ building
  • Groundswell1.3 ft16 sENE
  • Wind sea1.1 ft4 sENE ↓ fading
  • +1 more
NE Puerto Rico 41043 · Caribbean and tropical Atlantic · 52 min ago
  • Wind sea3.6 ft4 sE ↑ building
  • Swell3.2 ft10 sNNE ↑ building
  • Swell1.2 ft11 sS
NE St Martin 41044 · Caribbean and tropical Atlantic · 52 min ago
  • Wind sea3.4 ft6 sE
  • Swell2.8 ft9 sN
  • Groundswell2.0 ft16 sNE ↑ building
  • +1 more
North Equatorial One 41040 · Caribbean and tropical Atlantic · 52 min ago
  • Swell3.6 ft11 sNE
  • Wind sea2.7 ft6 sE new
  • Groundswell1.2 ft18 sNNE new
North Equatorial Two 41041 · Caribbean and tropical Atlantic · 52 min ago
  • Swell4.3 ft11 sENE
  • Groundswell1.4 ft17 sN new
Western Caribbean 42057 · Caribbean and tropical Atlantic · 52 min ago
  • Swell3.2 ft7 sE ↓ fading
  • Swell2.9 ft7 sSE ↓ fading
  • Swell1.4 ft4 sENE new
Bodega Bay, CA 46013 · California · 52 min ago
  • Wind sea9.1 ft8 sNW
About 1450 mi to the WNW (302°T)
Cape Mendocino, CA (094) 46213 · California · 1 h ago
  • Groundswell7.5 ft13 sNW
  • Wind sea3.1 ft5 sNNW
About 2850 mi to the W (274°T)
Cape San Martin, CA 46028 · California · 52 min ago
  • Swell9.7 ft12 sNW ↓ fading
  • Swell2.4 ft12 sSSW new
Capistrano Beach Nearshore, CA 46285 · California · 42 min ago
  • Wind sea2.8 ft8 sWSW ↑ building
  • Groundswell2.2 ft15 sSW ↓ fading
Del Mar Nearshore, CA 46266 · California · 42 min ago
  • Wind sea3.0 ft7 sW new
  • Groundswell2.0 ft15 sWSW ↓ fading
Diablo Canyon, CA 46215 · California · 42 min ago
  • Swell7.0 ft10 sWNW
About 2150 mi to the SW (236°T)
East Santa Barbara, CA 46053 · California · 52 min ago
  • Wind sea3.8 ft7 sW ↓ fading
  • Groundswell1.0 ft16 sN new
Eel River, CA 46022 · California · 52 min ago
  • Swell6.0 ft12 sWNW
  • Swell2.2 ft5 sNNW ↑ building
Green Beach Offshore 46277 · California · 1 h ago
  • Wind sea3.2 ft9 sW
  • Groundswell1.9 ft15 sSW ↑ building
Harvest, CA (071) 46218 · California · 42 min ago
  • Groundswell6.7 ft14 sNW
  • Groundswell1.7 ft13 sSSE ↓ fading
About 2250 mi to the WNW (300°T)