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
36 min ago
Systems named
305
Swell · wind sea
192 · 113
Seas crossing
6 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
Canaveral East, FL 41010 · Eastern Seaboard South · 46 min ago
  • Swell0.5 m9 sNE ↓ fading
  • Swell0.3 m10 sSSW ↑ building
Canaveral, FL 41009 · Eastern Seaboard South · 46 min ago
  • Swell0.6 m4 sE new
  • Swell0.3 m10 sE
About 3750 nmi to the NE (050°T)
Cape Canaveral Nearshore, FL 41113 · Eastern Seaboard South · 36 min ago
  • Wind sea0.5 m5 sSE new
Cape Hatteras East, NC (250) 41120 · Eastern Seaboard South · 36 min ago
  • Wind sea0.6 m10 sESE
  • Groundswell0.3 m16 sESE
Diamond Shoals, NC 41025 · Eastern Seaboard South · 46 min ago
  • Swell0.4 m8 sNE ↓ fading
  • Swell0.3 m9 sSSE new
  • Swell0.3 m7 sSE ↑ building
  • +2 more
Duck FRF 26 m, NC 44100 · Eastern Seaboard South · 36 min ago
  • Wind sea0.5 m10 sE
  • Groundswell0.2 m14 sE
Duck FRF, NC 44056 · Eastern Seaboard South · 1 h ago
  • Wind sea0.5 m8 sE ↓ fading
  • Groundswell0.3 m15 sE ↑ building
About 1850 nmi to the NE (053°T)
Edisto, SC 41004 · Eastern Seaboard South · 46 min ago
  • Swell0.4 m8 sESE
  • Swell0.2 m5 sS
Fernandina Beach, FL Offshore 41112 · Eastern Seaboard South · 36 min ago
  • Swell0.2 m11 sE ↓ fading
  • Wind sea0.2 m4 sSSE new
  • Groundswell0.2 m15 sE ↓ fading
Fort Pierce, FL (134) 41114 · Eastern Seaboard South · 36 min ago
  • Wind sea0.4 m10 sE ↓ fading
About 1200 nmi to the NE (044°T)
Frying Pan Shoals, NC 41013 · Eastern Seaboard South · 1 h ago
  • Swell0.4 m9 sESE ↓ fading
  • Groundswell0.2 m14 sESE new
Grays Reef, GA 41008 · Eastern Seaboard South · 46 min ago
  • Swell0.3 m10 sESE
  • Swell0.2 m4 sSSE ↓ fading
  • Swell0.2 m4 sNE ↓ fading
Hollywood Beach, FL (265) 41122 · Eastern Seaboard South · 36 min ago
  • Wind sea0.3 m3 sSE
Masonboro Inlet, ILM2, NC (150) 41110 · Eastern Seaboard South · 36 min ago
  • Wind sea0.3 m7 sSE new
  • Swell0.2 m10 sESE ↓ fading
NE BAHAMAS - 350 NM ENE of Nassau, Bahamas 41047 · Eastern Seaboard South · 46 min ago
  • Swell0.7 m10 sNE new
  • Swell0.4 m5 sSW ↑ building
  • Swell0.2 m6 sESE new
  • +1 more
Nags Head, NC 44086 · Eastern Seaboard South · 36 min ago
  • Wind sea0.6 m9 sE
  • Groundswell0.3 m13 sENE ↑ building
Onslow Bay Outer, NC (217) 41159 · Eastern Seaboard South · 36 min ago
  • Wind sea0.4 m10 sESE
  • Groundswell0.2 m14 sESE
Oregon Inlet, NC 44095 · Eastern Seaboard South · 36 min ago
  • Swell0.5 m9 sE ↑ building
  • Swell0.3 m3 sENE
South Bermuda 41049 · Eastern Seaboard South · 1 h ago
  • Groundswell1.1 m14 sNE
  • Swell0.7 m8 sWNW
  • Swell0.6 m8 sESE new
About 1350 nmi to the NE (037°T)
South Hatteras 41002 · Eastern Seaboard South · 1 h ago
  • Swell0.4 m8 sE
  • Groundswell0.3 m13 sESE new
  • Swell0.2 m6 sSE
  • +2 more