Latitude: 18° 28.55´N
Longitude: 66° 5.97´W
Location Description: North side of Puerto Rico near San Juan
Deployed: Jul 16 2026
Coast Guard Light List Letter: B
Coast Guard Light List Number 30737
Water Depth: 32 meters (105 feet)
Watch Circle Radius: 60 meters (197 feet)
Last Cell Phone Transmission: Aug 13, 04 PM AST
Last GOES Transmission: Aug 13, 04 PM AST
Latest Event:
Jul 16, 05 PM AST
Deployed by Luis Ramirez


Specialized Plots:
Temperature, Salinity, Density: Temperature, Salinity, Density (Deployment Only):

Text Reports: Surface, Ocean, Currents OR Data Download (All data for this location)

Sensor Information (this deployment only)


Latest Conditions:

Click on the graph icons below to see time series plots of the listed variables. The latest conditions are in local time but all plots are in GMT(Summer EDT is 4 hours behind GMT; Winter EST is 5 hours behind GMT; Atlantic AST is always 4 hours behind GMT).

We follow the convention that depth is measure positive "down". That's why parameters like wind speed have negative depths attached to them! The latest eastward and northward subsurface currents are displayed at a subset of available depths; no plots are presently available for current velocity vectors below 2m. Click here for additional Information.

Variable (measurement depth in meters) Last
Observation
Last
Update
(AST)
Most
Recent Data
Plot
Full
Deployment
Plot
Full
Historical
Plot
Make
My
Own
Significant Wave Height (0m)1.3 meters (4.2 ft) Aug 13 4:00 PM
Maximum Wave Height (0m)2.0 meters (6.4 ft) Aug 13 4:00 PM
Dominant Wave Period (0m)7.4 seconds Aug 13 4:00 PM
Mean Wave Direction (0m)61.5 degrees Aug 13 4:00 PM
Mean Wave Direction Spread (0m)27.0 degrees Aug 13 4:00 PM
Significant Wave Height (alt) (0m)Sensor Failure Aug 13 4:00 PM
Dominant Wave Period (alt) (0m)Sensor Failure Aug 13 4:00 PM
Significant Wave Height (test) (0m)1.2 meters (4.0 ft) Aug 13 4:00 PM
Dominant Wave Period (test) (0m)7.7 seconds Aug 13 4:00 PM
Mean Wave Direction (test) (0m)63.7 degrees Aug 13 4:00 PM
Air Temperature (-3m)29.7 C (85.4 F) Aug 13 4:00 PM
Relative Humidity (-0m)78.3 percent Aug 13 4:00 PM
Barometric Pressure (-3m)1015.4 millibars Aug 13 4:00 PM
Wind Direction (-4m)East Aug 13 4:00 PM
Wind 2 Direction [Primary] (-4m)East Aug 13 4:00 PM
Wind Speed (-4m)10.5 m/s (23 mph, 20 kts) Aug 13 4:00 PM
Wind 2 Speed [Primary] (-4m)10.7 m/s (24 mph, 21 kts) Aug 13 4:00 PM
Wind Gust (-4m)13.8 m/s (31 mph, 27 kts) Aug 13 4:00 PM
Wind 2 Gust [Primary] (-4m)12.8 m/s (29 mph, 25 kts) Aug 13 4:00 PM
Water Temperature (1m)29.1 C (84.3 F) Aug 13 4:00 PM
Salinity (1m)35.1 psu Aug 13 4:00 PM
Sigma-T (1m)22.1 kg/m^3 Aug 13 4:00 PM
Current Direction (2.5m)West Aug 13 4:00 PM
Current Direction (4m)West Aug 13 4:00 PM
Current Direction (5m)West Aug 13 4:00 PM
Current Direction (6m)West Aug 13 4:00 PM
Current Direction (7m)West Aug 13 4:00 PM
Current Direction (8m)West Aug 13 4:00 PM
Current Direction (9m)West Aug 13 4:00 PM
Current Direction (10m)West Aug 13 4:00 PM
Current Direction (11m)West Aug 13 4:00 PM
Current Direction (12m)West Aug 13 4:00 PM
Current Direction (13m)WNW Aug 13 4:00 PM
Current Direction (14m)West Aug 13 4:00 PM
Current Direction (15m)West Aug 13 4:00 PM
Current Direction (16m)West Aug 13 4:00 PM
Current Speed (2.5m)40.1 cm/s (0.78 kts) Aug 13 4:00 PM
Current Speed (4m)39.6 cm/s (0.77 kts) Aug 13 4:00 PM
Current Speed (5m)32.9 cm/s (0.64 kts) Aug 13 4:00 PM
Current Speed (6m)30.8 cm/s (0.60 kts) Aug 13 4:00 PM
Current Speed (7m)26.8 cm/s (0.52 kts) Aug 13 4:00 PM
Current Speed (8m)22.7 cm/s (0.44 kts) Aug 13 4:00 PM
Current Speed (9m)17.5 cm/s (0.34 kts) Aug 13 4:00 PM
Current Speed (10m)12.7 cm/s (0.25 kts) Aug 13 4:00 PM
Current Speed (11m)13.3 cm/s (0.26 kts) Aug 13 4:00 PM
Current Speed (12m)10.0 cm/s (0.19 kts) Aug 13 4:00 PM
Current Speed (13m)11.9 cm/s (0.23 kts) Aug 13 4:00 PM
Current Speed (14m)11.2 cm/s (0.22 kts) Aug 13 4:00 PM
Current Speed (15m)8.6 cm/s (0.17 kts) Aug 13 4:00 PM
Current Speed (16m)7.0 cm/s (0.14 kts) Aug 13 4:00 PM
East Current Velocity (2.5m)-40.0 cm/s (-0.78 kts) Aug 13 4:00 PM
East Current Velocity (4m)-39.6 cm/s (-0.77 kts) Aug 13 4:00 PM
East Current Velocity (5m)-32.9 cm/s (-0.64 kts) Aug 13 4:00 PM
East Current Velocity (6m)-30.8 cm/s (-0.60 kts) Aug 13 4:00 PM
East Current Velocity (7m)-26.7 cm/s (-0.52 kts) Aug 13 4:00 PM
East Current Velocity (8m)-22.6 cm/s (-0.44 kts) Aug 13 4:00 PM
East Current Velocity (9m)-17.5 cm/s (-0.34 kts) Aug 13 4:00 PM
East Current Velocity (10m)-12.6 cm/s (-0.24 kts) Aug 13 4:00 PM
East Current Velocity (11m)-13.2 cm/s (-0.26 kts) Aug 13 4:00 PM
East Current Velocity (12m)-10.0 cm/s (-0.19 kts) Aug 13 4:00 PM
East Current Velocity (13m)-11.6 cm/s (-0.23 kts) Aug 13 4:00 PM
East Current Velocity (14m)-11.2 cm/s (-0.22 kts) Aug 13 4:00 PM
East Current Velocity (15m)-8.6 cm/s (-0.17 kts) Aug 13 4:00 PM
East Current Velocity (16m)-7.0 cm/s (-0.14 kts) Aug 13 4:00 PM
North Current Velocity (2.5m)2.7 cm/s (0.05 kts) Aug 13 4:00 PM
North Current Velocity (4m)-1.6 cm/s (-0.03 kts) Aug 13 4:00 PM
North Current Velocity (5m)0.4 cm/s (0.01 kts) Aug 13 4:00 PM
North Current Velocity (6m)0.9 cm/s (0.02 kts) Aug 13 4:00 PM
North Current Velocity (7m)2.4 cm/s (0.05 kts) Aug 13 4:00 PM
North Current Velocity (8m)-2.1 cm/s (-0.04 kts) Aug 13 4:00 PM
North Current Velocity (9m)-0.9 cm/s (-0.02 kts) Aug 13 4:00 PM
North Current Velocity (10m)1.6 cm/s (0.03 kts) Aug 13 4:00 PM
North Current Velocity (11m)1.7 cm/s (0.03 kts) Aug 13 4:00 PM
North Current Velocity (12m)0.1 cm/s (0.00 kts) Aug 13 4:00 PM
North Current Velocity (13m)2.5 cm/s (0.05 kts) Aug 13 4:00 PM
North Current Velocity (14m)0.6 cm/s (0.01 kts) Aug 13 4:00 PM
North Current Velocity (15m)-0.4 cm/s (-0.01 kts) Aug 13 4:00 PM
North Current Velocity (16m)-0.3 cm/s (-0.01 kts) Aug 13 4:00 PM


Measured Ocean Currents and Wind Stress

Hourly averaged wind stress at 4 m and currents (rotated to true north) at 2 m (current meter) and from 10 m to a maximum of 126 m (Doppler).
Latest Month's:
This Deployment:
Entire Position History:

How to Read a Stick Plot


Wind and Residual Ocean Currents

Measured winds and currents which are low-pass filtered to remove tidal currents. Winds at 4 m above sea surface, surface currents at a depth of 2 m, and doppler currents at 4 meter bins from 10 meters to a maximum of 126 meters.
Latest Month's:
This Deployment:
Entire Position History:

How to Read a Stick Plot


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