Station ROAM4 - Rock of Ages, MI

Owned and maintained by National Data Buoy Center
C-MAN Station
MARS payload
47.867 N 89.313 W (47°52'0" N 89°18'48" 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

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Important Notice to Mariners

Search And Rescue (SAR) Data

Meteorological Observations from Nearby Stations and Ships

Sector pictures are available for this station at 0, 45, 90, 135, 180, 225, 270, 315 degrees.

(SECTOR PHOTOS ARE NOT IN REAL-TIME AND ARE NOT UPDATED!)

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Disclaimer

Conditions at ROAM4 as of
(8:00 am EDT)
1200 GMT on 03/31/2023:
Unit of Measure: Time Zone: Click on the graph icon in the table below to see a time series plot of the last five days of that observation.
	Atmospheric Pressure (PRES):	29.92 in
	Pressure Tendency (PTDY):	-0.03 in ( Falling )
	Air Temperature (ATMP):	31.3 °F

Previous observations
MM	DD	TIME (EDT)	WDIR	WSPD kts	GST kts	WVHT ft	DPD sec	APD sec	MWD	PRES in	PTDY in	ATMP °F	WTMP °F	DEWP °F	SAL psu	VIS nmi	TIDE ft

03	31	7:00 am	-	-	-	-	-	-	-	29.92	-0.03	31.6	-	-	-	-	-
03	31	6:00 am	-	-	-	-	-	-	-	29.93	-0.06	31.5	-	-	-	-	-
03	31	5:00 am	-	-	-	-	-	-	-	29.95	-0.06	31.3	-	-	-	-	-
03	31	4:00 am	-	-	-	-	-	-	-	29.96	-0.08	31.6	-	-	-	-	-
03	31	3:00 am	-	-	-	-	-	-	-	29.99	-0.06	31.6	-	-	-	-	-
03	31	2:00 am	-	-	-	-	-	-	-	30.02	-0.04	32.0	-	-	-	-	-
03	31	1:00 am	-	-	-	-	-	-	-	30.03	-0.01	32.0	-	-	-	-	-
03	31	12:00 am	-	-	-	-	-	-	-	30.04	+0.00	32.4	-	-	-	-	-
03	30	11:00 pm	-	-	-	-	-	-	-	30.06	+0.01	32.0	-	-	-	-	-
03	30	10:00 pm	-	-	-	-	-	-	-	30.05	-0.01	31.3	-	-	-	-	-
03	30	9:00 pm	-	-	-	-	-	-	-	30.04	-0.03	30.6	-	-	-	-	-
03	30	8:00 pm	-	-	-	-	-	-	-	30.04	-0.04	29.8	-	-	-	-	-
03	30	7:00 pm	-	-	-	-	-	-	-	30.06	-0.05	28.9	-	-	-	-	-
03	30	6:00 pm	-	-	-	-	-	-	-	30.07	-0.05	28.2	-	-	-	-	-
03	30	5:00 pm	-	-	-	-	-	-	-	30.09	-0.06	27.3	-	-	-	-	-
03	30	4:00 pm	-	-	-	-	-	-	-	30.10	-0.06	26.4	-	-	-	-	-
03	30	3:00 pm	-	-	-	-	-	-	-	30.12	-0.07	25.2	-	-	-	-	-
03	30	2:00 pm	-	-	-	-	-	-	-	30.15	-0.06	25.2	-	-	-	-	-
03	30	1:00 pm	-	-	-	-	-	-	-	30.16	-0.05	24.4	-	-	-	-	-
03	30	12:00 pm	-	-	-	-	-	-	-	30.19	-0.03	23.7	-	-	-	-	-
03	30	11:00 am	-	-	-	-	-	-	-	30.20	-0.02	22.6	-	-	-	-	-
03	30	10:00 am	-	-	-	-	-	-	-	30.22	+0.00	22.5	-	-	-	-	-
03	30	9:00 am	-	-	-	-	-	-	-	30.22	+0.00	22.3	-	-	-	-	-
03	30	8:00 am	-	-	-	-	-	-	-	30.22	-0.01	21.4	-	-	-	-	-

Description of Measurements

Links which are specific to this station are listed below:

Real Time Data in tabular form for the last forty-five days.

Historical Data & Climatic Summaries for quality controlled data for the current month, previous months, and previous years.

The weekly status report and the weekly maintenance report also provide valuable station information.

Note that the payload types and the station locations occasionally change.
Please refer to the NDBC data inventory for the data history of each station.