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
160 of 162
Newest spectrum
38 min ago
Systems named
298
Swell · wind sea
199 · 99
Seas crossing
11 buoys
Storms, last month
161 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 · 48 min ago
  • Swell0.6 m9 sENE
  • Groundswell0.2 m14 sSE new
Canaveral, FL 41009 · Eastern Seaboard South · 1 h ago
  • Swell0.5 m10 sE
  • Swell0.3 m3 sE new
Cape Canaveral Nearshore, FL 41113 · Eastern Seaboard South · 38 min ago
  • Swell0.3 m11 sE ↓ fading
  • Wind sea0.2 m3 sSSE new
Cape Hatteras East, NC (250) 41120 · Eastern Seaboard South · 38 min ago
  • Wind sea0.6 m9 sESE new
Diamond Shoals, NC 41025 · Eastern Seaboard South · 48 min ago
  • Swell0.7 m9 sE ↑ building
Duck FRF 26 m, NC 44100 · Eastern Seaboard South · 1 h ago
  • Wind sea0.5 m9 sE new
About 4900 km to the ENE (065°T)
Duck FRF, NC 44056 · Eastern Seaboard South · 1 h ago
  • Wind sea0.5 m10 sE new
About 4350 km to the ENE (057°T)
Edisto, SC 41004 · Eastern Seaboard South · 1 h ago
  • Swell0.3 m10 sENE new
  • Swell0.3 m4 sE new
Fernandina Beach, FL Offshore 41112 · Eastern Seaboard South · 38 min ago
  • Wind sea0.6 m4 sSE
Fort Pierce, FL (134) 41114 · Eastern Seaboard South · 38 min ago
  • Swell0.4 m11 sNE
  • Wind sea0.3 m3 sNW new
About 2200 km to the NE (044°T)
Frying Pan Shoals, NC 41013 · Eastern Seaboard South · 48 min ago
  • Swell0.4 m5 sSSW ↓ fading
  • Swell0.3 m10 sE ↑ building
  • Swell0.2 m6 sSE
Grays Reef, GA 41008 · Eastern Seaboard South No spectrum in the last six hours
Hollywood Beach, FL (265) 41122 · Eastern Seaboard South · 1 h ago
  • Swell0.2 m11 sE new
Masonboro Inlet, ILM2, NC (150) 41110 · Eastern Seaboard South · 1 h ago
  • Wind sea0.4 m9 sSE
NE BAHAMAS - 350 NM ENE of Nassau, Bahamas 41047 · Eastern Seaboard South · 48 min ago
  • Swell0.9 m10 sN ↓ fading
  • Swell0.6 m7 sS
  • Wind sea0.4 m3 sSSW new
Nags Head, NC 44086 · Eastern Seaboard South · 1 h ago
  • Swell0.4 m9 sENE ↓ fading
  • Wind sea0.4 m8 sSE new
Onslow Bay Outer, NC (217) 41159 · Eastern Seaboard South · 38 min ago
  • Wind sea0.5 m9 sSE ↑ building
Oregon Inlet, NC 44095 · Eastern Seaboard South · 1 h ago
  • Swell0.4 m10 sESE ↓ fading
  • Swell0.3 m10 sNE new
  • Swell0.2 m6 sSSE ↓ fading
  • +1 more
South Bermuda 41049 · Eastern Seaboard South · 1 h ago
  • Swell1.4 m10 sE ↑ building
  • Groundswell0.3 m17 sE ↓ fading
About 2650 km to the NE (037°T)
South Hatteras 41002 · Eastern Seaboard South · 48 min ago
  • Swell0.6 m10 sE ↑ building
  • Swell0.4 m4 sW