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 164
Newest spectrum
30 min ago
Systems named
327
Swell · wind sea
221 · 106
Seas crossing
3 buoys
Storms, last month
234 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
Canaveral East, FL 41010 · Eastern Seaboard South · 1 h ago
  • Swell0.5 m12 sNE ↓ fading
  • Swell0.3 m12 sSSE new
  • Wind sea0.3 m3 sE new
  • +2 more
About 1150 km to the ENE (062°T)
Canaveral, FL 41009 · Eastern Seaboard South · 1 h ago
  • Swell0.9 m5 sSE ↑ building
  • Swell0.3 m3 sSE new
  • Swell0.3 m13 sN new
  • +1 more
About 5250 km to the ENE (059°T)
Cape Canaveral Nearshore, FL 41113 · Eastern Seaboard South · 30 min ago
  • Wind sea0.8 m5 sSE ↓ fading
  • Swell0.3 m11 sE ↑ building
Cape Hatteras East, NC (250) 41120 · Eastern Seaboard South · 30 min ago
  • Swell0.5 m12 sESE
  • Wind sea0.4 m9 sENE
Diamond Shoals, NC 41025 · Eastern Seaboard South · 40 min ago
  • Swell0.6 m10 sE ↑ building
About 1000 km to the E (096°T)
Duck FRF 26 m, NC 44100 · Eastern Seaboard South · 1 h ago
  • Swell0.4 m12 sESE
  • Wind sea0.4 m9 sESE
Duck FRF, NC 44056 · Eastern Seaboard South · 1 h ago
  • Swell0.4 m12 sESE ↓ fading
  • Wind sea0.3 m9 sE new
  • Swell0.2 m12 sNE new
About 5600 km to the E (088°T)
Edisto, SC 41004 · Eastern Seaboard South · 1 h ago
  • Swell0.4 m12 sESE ↑ building
  • Swell0.3 m5 sE new
  • Wind sea0.2 m3 sNE ↑ building
Fernandina Beach, FL Offshore 41112 · Eastern Seaboard South · 30 min ago
  • Wind sea0.6 m4 sESE new
  • Swell0.4 m12 sE
Fort Pierce, FL (134) 41114 · Eastern Seaboard South · 30 min ago
  • Wind sea0.7 m5 sESE ↓ fading
  • Swell0.3 m12 sENE
About 4250 km to the ENE (071°T)
Frying Pan Shoals, NC 41013 · Eastern Seaboard South · 50 min ago
  • Swell0.5 m11 sE
  • Wind sea0.4 m4 sESE new
About 2400 km to the ESE (102°T)
Grays Reef, GA 41008 · Eastern Seaboard South · 1 h ago
  • Wind sea0.6 m4 sENE new
  • Swell0.2 m12 sNNE new
  • Swell0.2 m12 sSSE ↓ fading
Hollywood Beach, FL (265) 41122 · Eastern Seaboard South · 1 h ago
  • Wind sea0.9 m5 sE
About 5000 km to the NE (056°T)
Masonboro Inlet, ILM2, NC (150) 41110 · Eastern Seaboard South · 1 h ago
  • Swell0.4 m12 sESE
  • Wind sea0.3 m4 sESE ↓ fading
About 7450 km to the ESE (115°T)
NE BAHAMAS - 350 NM ENE of Nassau, Bahamas 41047 · Eastern Seaboard South · 40 min ago
  • Swell0.5 m8 sNNE new
  • Swell0.4 m6 sSSE ↓ fading
  • Swell0.4 m11 sSE new
  • +2 more
Nags Head, NC 44086 · Eastern Seaboard South · 30 min ago
  • Swell0.6 m11 sE
  • Wind sea0.2 m6 sSSE ↓ fading
Onslow Bay Outer, NC (217) 41159 · Eastern Seaboard South · 30 min ago
  • Wind sea0.7 m12 sSE ↑ building
About 5650 km to the ESE (109°T)
Oregon Inlet, NC 44095 · Eastern Seaboard South · 30 min ago
  • Swell0.6 m11 sE
  • Swell0.2 m2 sS new
South Bermuda 41049 · Eastern Seaboard South · 1 h ago
  • Swell0.8 m10 sNNE new
  • Swell0.7 m10 sE ↑ building
  • Swell0.7 m13 sNNE ↓ fading
  • +1 more
About 3100 km to the NNE (032°T)
South Hatteras 41002 · Eastern Seaboard South · 1 h ago
  • Swell0.7 m11 sENE new
  • Swell0.4 m4 sESE ↓ fading
About 1100 km to the SSE (155°T)