Station List

NDBC has recently revised the NDBC Handbook of Automated Data Quality Control Checks and Procedures. The new document can be found on our Publications page.

Station ROAM4 - Rock of Ages, MI Image indicating link to RSS feed of recent meteorological observations for station ROAM4

Owned and maintained by National Data Buoy Center
C-MAN Station
MARS payload
47.867 N 89.315 W (47°52'0" N 89°18'55" W)

Site elevation: 183.5 m above mean sea level
Air temp height: 46.5 m above site elevation
Anemometer height: 46.9 m above site elevation
Barometer elevation: 222.7 m above mean sea level

Latest NWS Marine Forecast

Important Notice to Mariners

Search And Rescue (SAR) Data

Meteorological Observations from Nearby Stations and Ships Image indicating link to RSS feed of recent meteorological observations near station ROAM4

View sector pictures for this station

Large icon indicates selected station.
yellow diamond Stations with recent data
red diamond Stations with no data in last 8 hours
(24 hours for tsunami stations)
Station ROAM4

Conditions at ROAM4 as of
(7:00 pm EDT)
2300 GMT on 04/19/2025:
     

Click on the graph icon in the table below to see a time series plot of the last five days of that observation.

5-day plot - Wind Direction Wind Direction (WDIR): SW ( 220 deg true )
5-day plot - Wind Speed Wind Speed (WSPD): 11 kts
5-day plot - Wind Gust Wind Gust (GST): 12 kts
5-day plot - Atmospheric Pressure Atmospheric Pressure (PRES):30.24 in
5-day plot - Pressure Tendency Pressure Tendency (PTDY):+0.07 in ( Rising )
5-day plot - Air Temperature Air Temperature (ATMP): 35.6 °F
5-day plot - Wind Chill Wind Chill (CHILL): 27.0 °F
5-day plot - Wind Speed at 10 Meters Wind Speed at 10 meters (WSPD10M): 10 kts
5-day plot - Wind Speed at 20 Meters Wind Speed at 20 meters (WSPD20M): 10 kts
5-day plot - Wind Speed, Wind Gust and Atmospheric Pressure Combined plot of Wind Speed, Gust, and Air Pressure
Continuous Winds
TIME
(EDT)		 5-day plot - Wind Direction WDIR 5-day plot - Wind Speed WSPD
7:00 pmSW ( 217 deg ) 11 kts
6:50 pmSW ( 219 deg ) 12 kts
6:40 pmSW ( 219 deg ) 13 kts
6:30 pmSW ( 216 deg ) 14 kts
6:20 pmSSW ( 212 deg ) 14 kts
6:10 pmSW ( 214 deg ) 15 kts
      
Peak gust during the measurement hour
TIME
(EDT)		 5-day plot - Gust Direction GDR 5-day plot - Gust Speed GST
6:05 pmSSW ( 210 deg ) 17 kts
Previous observations
TIME
(EDT)		 5-day plot - Wind Direction
WDIR
 		 5-day plot - Wind Speed
WSPD
kts		 5-day plot - Wind Gust
GST
kts		 5-day plot - Wave Height
WVHT
ft		 5-day plot - Dominant Wave Period
DPD
sec		 5-day plot - Average Wave Period
APD
sec		 5-day plot - Mean Wave Direction
MWD
 		 5-day plot - Atmospheric Pressure
PRES
in		 5-day plot - Pressure Tendency
PTDY
in		 5-day plot - Air Temperature
ATMP
°F		 5-day plot - Water Temperature
WTMP
°F		 5-day plot - Dew Point
DEWP
°F		 5-day plot - Salinity
SAL
psu		 5-day plot - Visibility
VIS
nmi		 5-day plot - Tide (above MLLW)
TIDE
ft
2025-04-19 06:00 pmSSW 16 16----30.22+0.06 34.9-----
2025-04-19 05:00 pmSSW 16 17----30.19+0.04 34.2-----
2025-04-19 04:00 pmSSW 15 16----30.17+0.04 33.4-----
2025-04-19 03:00 pmSSW 10 11----30.16+0.04 32.9-----
2025-04-19 02:00 pm SW 6 6----30.15+0.06 32.9-----
2025-04-19 01:00 pm NE 2 2----30.13+0.07 33.3-----
2025-04-19 12:00 pm NE 6 6----30.12+0.07 32.4-----
2025-04-19 11:00 am NE 11 11----30.09+0.05 32.0-----
2025-04-19 10:00 am NE 12 13----30.06+0.06 32.0-----
2025-04-19 09:00 am NE 13 13----30.05+0.09 32.9-----
2025-04-19 08:00 am NE 7 7----30.04+0.09 33.6-----
2025-04-19 07:00 am NE 5 5----30.00+0.06 34.0-----
2025-04-19 06:00 amENE 9 11----29.95+0.01 34.5-----
2025-04-19 05:00 am- 0 0----29.96+0.01 36.1-----
2025-04-19 04:00 am N 1 2----29.93+0.00 36.3-----
2025-04-19 03:00 am- 0 0----29.94+0.02 36.7-----
2025-04-19 02:00 amENE 2 3----29.94+0.03 37.0-----
2025-04-19 01:00 amENE 7 7----29.93+0.04 36.5-----
2025-04-19 12:00 amENE 8 8----29.92+0.05 37.4-----
2025-04-18 11:00 pm NE 10 10----29.91+0.05 37.4-----
2025-04-18 10:00 pm NE 12 12----29.89+0.03 38.1-----
2025-04-18 09:00 pm NE 8 9----29.87+0.04 39.6-----
2025-04-18 08:00 pm NE 6 7----29.86+0.03 39.4-----
2025-04-18 07:00 pm NW 4 5----29.86+0.04 39.0-----