Bluegraph
SIMarineUS

Wave intelligence

The systems in the sea

A buoy's single wave height hides what the sea is made of: 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 taken apart into those systems, followed through time, and used to place the storms the swells came from and to flag seas that cross.

161 of 162 stations with directional spectra analysed from their latest spectrum and the four days before it.

The wave systems in each buoy's latest spectrum, largest first, and whether each is building or fading.

22 of 162 shown

StationSystems nowSeasStorms
Canaveral East, FL 41010 · Eastern Seaboard South · spectrum 51 min ago
  • Swell 0.7 m · 10 s · ENE
——
Canaveral, FL 41009 · Eastern Seaboard South · spectrum 51 min ago
  • Swell 0.5 m · 11 s · ENE new
  • Wind sea 0.4 m · 3 s · S building
  • Swell 0.2 m · 7 s · NE new
——
Cape Canaveral Nearshore, FL 41113 · Eastern Seaboard South · spectrum 1 h ago
  • Wind sea 0.5 m · 3 s · SSE new
  • Swell 0.3 m · 11 s · E
——
Cape Hatteras East, NC (250) 41120 · Eastern Seaboard South · spectrum 1 h ago
  • Wind sea 0.6 m · 10 s · ENE
——
Diamond Shoals, NC 41025 · Eastern Seaboard South · spectrum 51 min ago
  • Swell 0.7 m · 9 s · ESE building
—About 400 nmi to the NNE (020°T)
Duck FRF 26 m, NC 44100 · Eastern Seaboard South · spectrum 1 h ago
  • Wind sea 0.4 m · 8 s · ESE fading
  • Swell 0.4 m · 10 s · ENE new
—About 2950 nmi to the ENE (067°T)
Duck FRF, NC 44056 · Eastern Seaboard South · spectrum 1 h ago
  • Swell 0.4 m · 10 s · E
  • Wind sea 0.3 m · 3 s · ESE
—About 2650 nmi to the ENE (059°T)
Edisto, SC 41004 · Eastern Seaboard South · spectrum 51 min ago
  • Swell 0.4 m · 5 s · SSW fading
  • Swell 0.3 m · 8 s · ESE fading
  • Swell 0.2 m · 11 s · E new
——
Fernandina Beach, FL Offshore 41112 · Eastern Seaboard South · spectrum 41 min ago
  • Wind sea 0.7 m · 4 s · SSE
——
Fort Pierce, FL (134) 41114 · Eastern Seaboard South · spectrum 41 min ago
  • Wind sea 0.6 m · 11 s · E
—About 1200 nmi to the NE (044°T)
Frying Pan Shoals, NC 41013 · Eastern Seaboard South · spectrum 51 min ago
  • Swell 0.4 m · 5 s · SSW building
  • Swell 0.3 m · 7 s · ESE building
—About 800 nmi to the ESE (107°T)
Grays Reef, GA 41008 · Eastern Seaboard South No spectrum in the last six hours
Hollywood Beach, FL (265) 41122 · Eastern Seaboard South · spectrum 1 h ago
  • Wind sea 0.3 m · 4 s · SSE new
  • Swell 0.2 m · 12 s · NE fading
——
Masonboro Inlet, ILM2, NC (150) 41110 · Eastern Seaboard South · spectrum 1 h ago
  • Swell 0.3 m · 10 s · ESE building
  • Wind sea 0.2 m · 4 s · S new
——
NE BAHAMAS - 350 NM ENE of Nassau, Bahamas 41047 · Eastern Seaboard South · spectrum 51 min ago
  • Swell 1.1 m · 9 s · N
  • Swell 0.8 m · 6 s · S
——
Nags Head, NC 44086 · Eastern Seaboard South · spectrum 1 h ago
  • Wind sea 0.6 m · 10 s · ESE
——
Onslow Bay Outer, NC (217) 41159 · Eastern Seaboard South · spectrum 41 min ago
  • Swell 0.4 m · 10 s · ESE fading
  • Wind sea 0.2 m · 5 s · SSW new
——
Oregon Inlet, NC 44095 · Eastern Seaboard South · spectrum 41 min ago
  • Swell 0.5 m · 10 s · ESE building
  • Wind sea 0.3 m · 2 s · E new
  • Swell 0.2 m · 4 s · NNE fading
——
South Bermuda 41049 · Eastern Seaboard South · spectrum 51 min ago
  • Swell 1.3 m · 8 s · WNW building
  • Swell 0.6 m · 12 s · E new
  • Swell 0.5 m · 5 s · SSW new
—About 1300 nmi to the NE (038°T)
South Hatteras 41002 · Eastern Seaboard South · spectrum 51 min ago
  • Swell 0.6 m · 10 s · ENE
  • Swell 0.4 m · 4 s · WNW fading
  • Swell 0.2 m · 3 s · WSW new
——
St. Augustine, FL (194) 41117 · Eastern Seaboard South · spectrum 41 min ago
  • Wind sea 0.8 m · 4 s · SSE new
  • Swell 0.3 m · 11 s · ENE fading
——
West Bermuda 41048 · Eastern Seaboard South · spectrum 51 min ago
  • Swell 0.8 m · 7 s · NW
  • Swell 0.7 m · 7 s · SE building
  • Swell 0.5 m · 9 s · NE fading
——