Reported Nov 13, 4:18 AM ESTBuoy 44063

Annapolis, MD

Maryland, United States

Last wave reading:

Now at the buoy

Significant wave height at the buoy

1.0 ft

0.3 m

Dominant period
2 s
Direction
no direction

This station does not send a swell and wind-wave split, so the numbers are for the whole sea.

Short-period wind chop: 1.0 ft at 2 s.

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)

Period

5 s10 s15 s9 Mon10 Tue11 Wed12 Thu13 Fri
  • Dominant period
dir

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

Model vs the buoy

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

Over the last 4 days, the model tracked the buoy within 10%.

Model peak each day at the buoy
DayHeightPeak periodFrom
Fri, Nov 131.8 ft2.5 sNW
Sat, Nov 141.8 ft2.5 sNW
Sun, Nov 151.6 ft2.4 sNNW
Mon, Nov 161.2 ft2 sNNW
Tue, Nov 170.4 ft1.8 sNNW
Wed, Nov 180.4 ft1.6 sNW
Thu, Nov 190.2 ft1.8 sNW

ECMWF WAM wave model via Open-Meteo, nearest model cell (39.000°N, 76.250°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: Annapolis (US Naval Academy) 4 km for today’s highs and lows.

Other readings

Water temperature
60°F (15.3°C)
Wind
19 kt from the NNW, gusts 31 kt
Air temperature
46°F (7.7°C)

Reported Nov 13, 4:18 AM EST.

How to read this buoy

Biggest hourly reading in that record: 1.6 ft at 4 s on Oct 17.

Station id
44063
Operator
Chesapeake Bay Interpretive Buoy System (CBIBS)
Program
IOOS Partners
Position
38.963°N, 76.448°W
Type
Moored buoy
Local time zone
America/New_York
Swell split
No, whole-sea numbers only

Source: NOAA National Data Buoy Center (NDBC); station operated by Chesapeake Bay Interpretive Buoy System (CBIBS). 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.