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 163
Newest spectrum
38 min ago
Systems named
315
Swell · wind sea
213 · 102
Seas crossing
3 buoys
Storms, last month
185 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 · 38 min ago
  • Swell0.5 m9 sENE ↑ building
  • Swell0.3 m5 sSW ↓ fading
  • Swell0.2 m5 sE
  • +2 more
Canaveral, FL 41009 · Eastern Seaboard South · 38 min ago
  • Swell0.3 m9 sENE
  • Swell0.2 m3 sSSE new
  • Groundswell0.2 m13 sSE new
Cape Canaveral Nearshore, FL 41113 · Eastern Seaboard South · 58 min ago
  • Wind sea0.3 m9 sESE ↓ fading
Cape Hatteras East, NC (250) 41120 · Eastern Seaboard South · 58 min ago
  • Wind sea0.5 m10 sESE
  • Groundswell0.3 m13 sE
About 1700 nmi to the NE (055°T)
Diamond Shoals, NC 41025 · Eastern Seaboard South · 38 min ago
  • Swell0.5 m9 sE ↑ building
  • Swell0.3 m13 sE
Duck FRF 26 m, NC 44100 · Eastern Seaboard South · 58 min ago
  • Wind sea0.6 m9 sE
  • Groundswell0.3 m14 sE
About 1850 nmi to the NE (052°T)
Duck FRF, NC 44056 · Eastern Seaboard South · 58 min ago
  • Wind sea0.5 m10 sE
  • Groundswell0.3 m13 sE
About 1650 nmi to the NE (053°T)
Edisto, SC 41004 · Eastern Seaboard South · 38 min ago
  • Swell0.3 m9 sE ↑ building
  • Swell0.2 m3 sS new
  • Swell0.2 m13 sESE new
Fernandina Beach, FL Offshore 41112 · Eastern Seaboard South · 58 min ago
  • Wind sea0.4 m9 sESE
  • Groundswell0.2 m14 sE new
Fort Pierce, FL (134) 41114 · Eastern Seaboard South · 58 min ago
  • Wind sea0.3 m10 sENE
Frying Pan Shoals, NC 41013 · Eastern Seaboard South · 38 min ago
  • Swell0.5 m9 sESE
Grays Reef, GA 41008 · Eastern Seaboard South · 38 min ago
  • Swell0.3 m9 sE
  • Swell0.2 m3 sENE new
  • Groundswell0.2 m16 sENE new
Hollywood Beach, FL (265) 41122 · Eastern Seaboard South · 58 min ago
  • Swell0.3 m5 sESE new
Masonboro Inlet, ILM2, NC (150) 41110 · Eastern Seaboard South · 58 min ago
  • Wind sea0.3 m9 sESE
  • Groundswell0.2 m14 sESE
About 4850 nmi to the E (099°T)
NE BAHAMAS - 350 NM ENE of Nassau, Bahamas 41047 · Eastern Seaboard South · 38 min ago
  • Swell0.6 m9 sENE ↓ fading
  • Groundswell0.4 m15 sN new
  • Swell0.3 m12 sSE ↓ fading
  • +1 more
Nags Head, NC 44086 · Eastern Seaboard South · 58 min ago
  • Wind sea0.6 m9 sE
  • Groundswell0.3 m14 sE ↑ building
Onslow Bay Outer, NC (217) 41159 · Eastern Seaboard South · 58 min ago
  • Wind sea0.4 m9 sESE
  • Groundswell0.2 m13 sESE
Oregon Inlet, NC 44095 · Eastern Seaboard South · 58 min ago
  • Swell0.5 m8 sE ↑ building
  • Swell0.4 m4 sE ↑ building
  • Groundswell0.3 m14 sE
South Bermuda 41049 · Eastern Seaboard South · 38 min ago
  • Groundswell1.1 m15 sENE ↑ building
  • Swell0.7 m7 sWNW new
  • Swell0.4 m6 sSE ↓ fading
About 2750 nmi to the NE (048°T)
South Hatteras 41002 · Eastern Seaboard South · 38 min ago
  • Swell0.6 m5 sS
  • Swell0.6 m13 sENE ↑ building
About 500 nmi to the SE (145°T)