Reported Nov 13, 4:30 AM ESTBuoy 42095

Satan Shoal, FL

Florida, United States

Last wave reading:

Now at the buoy

Significant wave height at the buoy

1.3 ft

0.4 m

Dominant period
2 s
Direction
from NNE 14°

Swell

0.0 ft0.0 m

22 sfrom NW 315°

Wind waves

1.0 ft0.3 m

2.3 sfrom NNE 23°

Wind waves lead: 1.0 ft at 2.3 s from the NNE, over 0.0 ft of long-period groundswell at 22 s from the NW. Holding steady over the last 6 hours.

Significant wave height is the average of the biggest third of waves at the buoy. It is not surf height at a beach.

Trend at the buoy

Height at the buoy

2 ft4 ft9 Mon10 Tue11 Wed12 Thu13 Fri
  • Total (significant height)
  • Swell
  • Wind waves

Period

5 s10 s15 s20 s25 s9 Mon10 Tue11 Wed12 Thu13 Fri
  • Swell period
  • Wind-wave period
dir

Hourly means of the buoy's readings. Arrows point the way the waves travel.

Model vs the buoy

2 ft4 ft6 ftforecast
  • Buoy, hourly
  • Model, past days
  • Model forecast

Over the last 5 days, the model tracked the buoy within 10%.

Model peak each day at the buoy
DayHeightPeak periodFrom
Fri, Nov 132.4 ft3.9 sNNW
Sat, Nov 142.6 ft5.1 sN
Sun, Nov 153.6 ft4.5 sE
Mon, Nov 164.4 ft5.1 sE
Tue, Nov 175.3 ft5.9 sE
Wed, Nov 185.2 ft6.1 sE
Thu, Nov 194.1 ft5.1 sE

ECMWF WAM wave model via Open-Meteo, nearest model cell (24.500°N, 82.000°W). Both lines are significant wave height at sea, the same measure the buoy reports. Model output, not a Quiver beach forecast.

Nearby buoys

Nearest tide station: Sand Key Lighthouse, Sand Key Channel 10 km for today’s highs and lows.

Other readings

Water temperature
83°F (28.2°C)
Air temperature
79°F (26.2°C)

Reported Nov 13, 4:30 AM EST.

How to read this buoy

Over the readings shown here, most wave energy reached this buoy from the S, SW and W.

Biggest hourly reading in that record: 5.2 ft at 5 s on Oct 18.

Station id
42095
CDIP id
244
Operator
U.S. Army Corps of Engineers
Program
IOOS Partners
Position
24.407°N, 81.968°W
Type
Moored buoy
Local time zone
America/New_York
Swell split
Yes, swell and wind waves reported

Source: NOAA National Data Buoy Center (NDBC); station operated by U.S. Army Corps of Engineers. Licence: Public domain (US government work). Station page at the source.

Not for navigation. Readings can be late, missing or wrong; check official marine forecasts before going to sea.

Buoy terms

Significant height
The average of the biggest third of waves the buoy measured. Sets in the surf zone can be bigger or smaller.
Dominant period
Seconds between the waves carrying the most energy. Longer period means more power and more bend around points.
Swell vs wind waves
Swell was made by distant wind; wind waves were made nearby. The buoy splits its spectrum at a cutoff period to report each.
Direction
Where waves come from, in degrees true. 270° is from the west.