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 162
Newest spectrum
44 min ago
Systems named
299
Swell · wind sea
197 · 102
Seas crossing
12 buoys
Storms, last month
167 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 · 54 min ago
  • Swell0.6 m10 sENE
  • Groundswell0.2 m14 sSE new
  • Swell0.1 m6 sENE new
Canaveral, FL 41009 · Eastern Seaboard South · 1 h ago
  • Swell0.4 m10 sENE
Cape Canaveral Nearshore, FL 41113 · Eastern Seaboard South · 44 min ago
  • Wind sea0.3 m10 sENE
Cape Hatteras East, NC (250) 41120 · Eastern Seaboard South · 1 h ago
  • Wind sea0.5 m6 sSE new
  • Swell0.3 m11 sNE new
  • Groundswell0.2 m14 sESE
Diamond Shoals, NC 41025 · Eastern Seaboard South · 1 h ago
  • Swell0.6 m9 sESE
  • Swell0.2 m3 sSSE ↓ fading
About 550 nmi to the ESE (102°T)
Duck FRF 26 m, NC 44100 · Eastern Seaboard South · 1 h ago
  • Wind sea0.6 m9 sE
Duck FRF, NC 44056 · Eastern Seaboard South · 1 h ago
  • Wind sea0.5 m6 sE new
  • Swell0.3 m10 sENE ↓ fading
  • Groundswell0.2 m14 sE new
About 2100 nmi to the ENE (057°T)
Edisto, SC 41004 · Eastern Seaboard South · 1 h ago
  • Swell0.3 m10 sE
  • Swell0.2 m11 sSSE new
  • Swell0.2 m4 sSSW new
Fernandina Beach, FL Offshore 41112 · Eastern Seaboard South · 44 min ago
  • Wind sea0.5 m10 sSE new
Fort Pierce, FL (134) 41114 · Eastern Seaboard South · 44 min ago
  • Swell0.4 m10 sENE
Frying Pan Shoals, NC 41013 · Eastern Seaboard South · 54 min ago
  • Swell0.4 m10 sESE
  • Swell0.2 m5 sS ↓ fading
Grays Reef, GA 41008 · Eastern Seaboard South · 1 h ago
  • Swell0.5 m5 sSSE
  • Swell0.3 m10 sE ↑ building
  • Swell0.2 m4 sESE ↓ fading
Hollywood Beach, FL (265) 41122 · Eastern Seaboard South · 1 h ago
  • Wind sea0.5 m3 sSSE new
  • Swell0.1 m10 sNNE new
Masonboro Inlet, ILM2, NC (150) 41110 · Eastern Seaboard South · 44 min ago
  • Swell0.3 m10 sESE ↑ building
  • Wind sea0.3 m5 sS new
NE BAHAMAS - 350 NM ENE of Nassau, Bahamas 41047 · Eastern Seaboard South · 54 min ago
  • Swell0.8 m8 sNNE
  • Swell0.5 m6 sS ↓ fading
  • Wind sea0.3 m3 sSW new
Nags Head, NC 44086 · Eastern Seaboard South · 1 h ago
  • Wind sea0.7 m9 sENE ↑ building
  • Groundswell0.2 m15 sE
Onslow Bay Outer, NC (217) 41159 · Eastern Seaboard South · 44 min ago
  • Wind sea0.5 m5 sSE new
Oregon Inlet, NC 44095 · Eastern Seaboard South · 44 min ago
  • Swell0.5 m10 sESE
  • Wind sea0.4 m3 sNE new
  • Swell0.2 m7 sNNE new
  • +1 more
South Bermuda 41049 · Eastern Seaboard South · 54 min ago
  • Swell1.1 m9 sWNW ↑ building
  • Swell0.7 m12 sESE ↑ building
  • Groundswell0.5 m16 sNNE
South Hatteras 41002 · Eastern Seaboard South · 54 min ago
  • Swell0.6 m10 sE ↑ building
  • Swell0.4 m4 sW new