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

Latest NWS Marine Forecast

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!)

Large icon indicates selected station.

Stations with recent data

Stations with no data in last 8 hours
(24 hours for tsunami stations)

Disclaimer

Conditions at ROAM4 as of
(10:00 pm EST on 12/12/2018)
0300 GMT on 12/13/2018:
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.
	Wind Direction (WDIR):	S ( 180 deg true )
	Wind Speed (WSPD):	13 kts
	Wind Gust (GST):	14 kts
	Atmospheric Pressure (PRES):	29.93 in
	Pressure Tendency (PTDY):	+0.02 in ( Rising )
	Air Temperature (ATMP):	34.0 °F
	Wind Chill (CHILL):	24.1 °F
	Wind Speed at 10 meters (WSPD10M):	12 kts
	Wind Speed at 20 meters (WSPD20M):	12 kts
	Combined plot of Wind Speed, Gust, and Air Pressure

Continuous Winds
TIME (EST)	WDIR	WSPD
10:00 pm	SSE ( 166 deg )	12 kts
9:50 pm	SSE ( 150 deg )	15 kts
9:40 pm	SSE ( 153 deg )	16 kts
9:30 pm	SE ( 146 deg )	16 kts
9:20 pm	SE ( 146 deg )	17 kts
9:10 pm	SE ( 143 deg )	16 kts

Peak gust during the measurement hour
TIME (EST)	GDR	GST
9:04 pm	SSE ( 150 deg )	20 kts

Previous observations

MM	DD	TIME (EST)	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
12	12	9:00 pm	SSE	16	17	-	-	-	-	29.90	+0.00	33.8	-	-	-	-	-
12	12	8:00 pm	SE	9	10	-	-	-	-	29.91	-	33.4	-	-	-	-	-
12	12	7:00 pm	E	7	8	-	-	-	-	29.91	+0.03	33.1	-	-	-	-	-
12	12	6:00 pm	ENE	5	6	-	-	-	-	29.91	-	33.3	-	-	-	-	-
12	12	5:00 pm	ENE	6	7	-	-	-	-	29.89	+0.03	33.1	-	-	-	-	-
12	12	4:00 pm	ESE	3	4	-	-	-	-	29.88	-	33.1	-	-	-	-	-
12	12	3:00 pm	SE	4	5	-	-	-	-	29.87	+0.01	33.1	-	-	-	-	-
12	12	2:00 pm	SE	7	8	-	-	-	-	29.86	-0.02	32.9	-	-	-	-	-
12	12	1:00 pm	SE	7	7	-	-	-	-	29.85	-0.04	32.7	-	-	-	-	-
12	12	12:00 pm	SE	11	12	-	-	-	-	29.86	-0.02	32.5	-	-	-	-	-
12	12	11:00 am	SSE	15	16	-	-	-	-	29.88	-	32.4	-	-	-	-	-
12	12	10:00 am	SSE	15	16	-	-	-	-	29.89	+0.01	32.0	-	-	-	-	-
12	12	9:00 am	SSE	20	21	-	-	-	-	29.88	-0.01	31.8	-	-	-	-	-
12	12	8:00 am	SE	18	21	-	-	-	-	29.88	-0.02	31.5	-	-	-	-	-
12	12	7:00 am	SE	20	22	-	-	-	-	29.88	-0.06	32.0	-	-	-	-	-
12	12	6:00 am	SE	21	23	-	-	-	-	29.89	-0.08	32.4	-	-	-	-	-
12	12	5:00 am	SE	21	23	-	-	-	-	29.91	-0.08	32.5	-	-	-	-	-
12	12	4:00 am	SE	20	22	-	-	-	-	29.93	-0.06	32.4	-	-	-	-	-
12	12	3:00 am	SSE	19	23	-	-	-	-	29.97	-0.04	31.3	-	-	-	-	-
12	12	2:00 am	SE	21	23	-	-	-	-	29.98	-0.05	30.9	-	-	-	-	-
12	12	1:00 am	SSE	20	21	-	-	-	-	30.00	-0.05	30.6	-	-	-	-	-
12	12	12:00 am	SSE	19	20	-	-	-	-	30.02	-0.06	30.2	-	-	-	-	-
12	11	11:00 pm	SSE	17	18	-	-	-	-	30.03	-0.06	29.8	-	-	-	-	-
12	11	10:00 pm	SSE	17	18	-	-	-	-	30.05	-0.04	28.8	-	-	-	-	-

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.