Station List

Station STDM4 - Stannard Rock, MI Image indicating link to RSS feed of recent meteorological observations for station STDM4

Owned and maintained by National Data Buoy Center
C-MAN Station
SM+ Payload
47.184 N 87.225 W (47°11'1" N 87°13'30" W)

Site elevation: 182.9 m above mean sea level
Air temp height: 35.1 m above site elevation
Anemometer height: 35.7 m above site elevation
Barometer elevation: 210.3 m above mean sea level

The system installed at STDM4 is a prototype. Data is provisional pending rigorous review.

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 STDM4

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yellow diamond Stations with recent data
red diamond Stations with no data in last 8 hours
(24 hours for tsunami stations)
Station STDM4

Conditions at STDM4 as of
(5:30 pm EST)
2230 GMT on 12/24/2025:
     

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):SSW ( 210 deg true )
5-day plot - Wind Speed Wind Speed (WSPD): 12 kts
5-day plot - Wind Gust Wind Gust (GST): 14 kts
5-day plot - Atmospheric Pressure Atmospheric Pressure (PRES):30.10 in
5-day plot - Air Temperature Air Temperature (ATMP): 34.7 °F
5-day plot - Dew Point Dew Point (DEWP): 25.9 °F
5-day plot - Wind Chill Wind Chill (CHILL): 25.5 °F
5-day plot - Wind Speed at 10 Meters Wind Speed at 10 meters (WSPD10M): 12 kts
5-day plot - Wind Speed at 20 Meters Wind Speed at 20 meters (WSPD20M): 12 kts
5-day plot - Wind Speed, Wind Gust and Atmospheric Pressure Combined plot of Wind Speed, Gust, and Air Pressure
Supplemental Measurements
Lowest 1-minute Pressure
Time (EST)Pressure
5:29 pm30.10 in
Highest 1-minute Wind Speed
Time (EST)5-day plot - 1-Minute Wind Speed WSPD 5-day plot - 1-Minute Wind Direction WDIR
5:29 pm 14 ktsSSW ( 210 deg true )
Previous observations
TIME
(EST)		 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
2025-12-24 05:20 pmSSW 14 16----30.10- 34.5- 25.9---
2025-12-24 05:10 pm S 15 17----30.09- 34.3- 25.3---
2025-12-24 05:00 pm S 16 18----30.09-0.04 34.2- 25.5---
2025-12-24 04:50 pm S 16 18----30.09- 34.2- 25.9---
2025-12-24 04:40 pm S 16 19----30.09- 34.2- 25.3---
2025-12-24 04:30 pmSSW 15 17----30.11- 34.2- 24.8---
2025-12-24 04:20 pmSSW 14 17----30.11- 34.2- 25.3---
2025-12-24 04:10 pm S 14 17----30.12- 33.8- 26.6---
2025-12-24 04:00 pm S 15 18----30.13-0.01 33.6- 26.2---
2025-12-24 03:50 pm S 16 18----30.13- 33.3- 26.8---
2025-12-24 03:40 pm S 17 19----30.14- 32.9- 26.8---
2025-12-24 03:30 pm S 19 22----30.13- 32.5- 27.1---
2025-12-24 03:20 pm S 21 24----30.12- 32.4- 26.6---
2025-12-24 03:10 pm S 23 25----30.11- 32.2- 26.6---
2025-12-24 03:00 pm S 24 27----30.11-0.07 31.8- 26.6---
2025-12-24 02:50 pm S 26 29----30.11- 31.8- 26.8---
2025-12-24 02:40 pm S 25 29----30.11- 31.8- 27.0---
2025-12-24 02:30 pm S 24 27----30.11- 32.0- 27.1---
2025-12-24 02:20 pm S 25 28----30.12- 31.5- 27.0---
2025-12-24 02:10 pm S 26 29----30.11- 31.5- 27.1---
2025-12-24 02:00 pm S 25 28----30.13-0.11 31.1- 27.3---
2025-12-24 01:50 pm S 28 30----30.13- 30.7- 26.4---
2025-12-24 01:40 pm S 27 30----30.12- 30.9- 27.1---
2025-12-24 01:30 pm S 26 29----30.12- 30.7- 26.8---
2025-12-24 01:20 pm S 26 29----30.14- 30.6- 26.6---
2025-12-24 01:10 pm S 26 29----30.14- 30.6- 27.0---
2025-12-24 01:00 pm S 27 31----30.14-0.12 30.2- 26.4---
2025-12-24 12:50 pm S 27 30----30.14- 30.0- 26.4---
2025-12-24 12:40 pm S 25 29----30.15- 29.8- 26.4---
2025-12-24 12:30 pm S 25 29----30.16- 29.5- 26.1---
2025-12-24 12:20 pm S 25 28----30.17- 29.3- 25.7---
2025-12-24 12:10 pm S 25 27----30.18- 29.3- 25.9---
2025-12-24 12:00 pm S 24 27----30.18-0.11 29.3- 25.9---
2025-12-24 11:50 am S 24 28----30.21- 28.9- 25.3---
2025-12-24 11:40 am S 22 26----30.22- 28.9- 25.7---
2025-12-24 11:30 am S 22 26----30.22- 28.8- 25.5---
2025-12-24 11:20 am S 24 26----30.22- 28.6- 25.3---
2025-12-24 11:10 am S 24 27----30.22- 28.6- 25.0---
2025-12-24 11:00 am S 22 26----30.23-0.10 28.6- 25.2---
2025-12-24 10:50 am S 22 26----30.23- 28.6- 25.2---
2025-12-24 10:40 am S 22 25----30.24- 28.4- 25.2---
2025-12-24 10:30 am S 21 25----30.24- 28.4- 25.5---
2025-12-24 10:20 am S 20 24----30.26- 28.0- 25.7---
2025-12-24 10:10 am S 19 23----30.26- 27.7- 25.2---
2025-12-24 10:00 am S 18 21----30.26-0.09 27.5- 25.2---
2025-12-24 09:50 amSSE 15 18----30.27- 27.0- 24.8---
2025-12-24 09:40 amSSE 15 19----30.29- 26.8- 24.4---
2025-12-24 09:30 amSSE 14 18----30.29- 26.4- 24.1---
2025-12-24 09:20 amSSE 12 15----30.29- 26.1- 23.7---
2025-12-24 09:10 amSSE 12 16----30.29- 25.9- 23.5---
2025-12-24 09:00 amSSE 11 13----30.29-0.07 25.7- 23.4---
2025-12-24 08:50 amSSE 10 13----30.29- 25.5- 23.2---
2025-12-24 08:40 amSSE 8 12----30.31- 25.2- 22.6---
2025-12-24 08:30 amSSE 8 10----30.32- 24.8- 22.3---
2025-12-24 08:20 am SE 6 9----30.32- 24.8- 22.3---
2025-12-24 08:10 am SE 5 8----30.32- 24.8- 22.3---
2025-12-24 08:00 am SE 5 6----30.34-0.02 24.4- 21.6---
2025-12-24 07:50 am SE 4 6----30.34- 24.4- 21.7---
2025-12-24 07:40 amSSE 2 4----30.35- 24.1- 21.2---
2025-12-24 07:30 am- 0 2----30.35- 23.9- 21.0---
2025-12-24 07:20 am S 2 5----30.35- 23.9- 21.0---
2025-12-24 07:10 am S 4 6----30.35- 23.7- 20.7---
2025-12-24 07:00 amSSW 5 9----30.35+0.02 23.7- 20.7---
2025-12-24 06:50 amSSW 6 9----30.35- 23.7- 20.7---
2025-12-24 06:40 am SW 7 10----30.35- 23.5- 20.8---
2025-12-24 06:30 am SW 7 12----30.35- 23.7- 21.0---
2025-12-24 06:20 am SW 7 10----30.36- 23.7- 21.2---
2025-12-24 06:10 amWSW 7 10----30.37- 23.7- 21.2---
2025-12-24 06:00 amWSW 6 10----30.36-0.01 23.7- 21.0---
2025-12-24 05:50 am- 0 2----30.36- 23.5- 20.5---
2025-12-24 05:40 am S 3 6----30.35- 23.4- 20.1---
2025-12-24 05:30 amSSE 2 4----30.35- 23.2- 19.8---
2025-12-24 05:20 amSSW 2 4----30.36- 23.2- 19.9---
2025-12-24 05:10 am S 2 5----30.36- 23.2- 19.8---
2025-12-24 05:00 amSSE 2 4----30.36+0.00 23.2- 19.8---
2025-12-24 04:50 am SE 2 5----30.35- 23.0- 19.6---
2025-12-24 04:40 am S 1 4----30.35- 22.8- 19.2---
2025-12-24 04:30 am- 0 4----30.36- 22.6- 19.4---
2025-12-24 04:20 am- 0 4----30.35- 22.5- 19.4---
2025-12-24 04:10 amESE 6 9----30.32- 22.3- 19.2---
2025-12-24 04:00 am N 5 7----30.33+0.02 22.5- 19.6---
2025-12-24 03:50 amNNW 4 6----30.35- 22.3- 19.4---
2025-12-24 03:40 amNNW 6 9----30.36- 22.5- 19.6---
2025-12-24 03:30 amNNW 2 6----30.36- 22.6- 19.8---
2025-12-24 03:20 amENE 2 4----30.37- 22.5- 19.6---
2025-12-24 03:10 amNNW 3 4----30.37- 22.3- 19.4---
2025-12-24 03:00 amNNW 6 10----30.37+0.08 22.3- 19.4---
2025-12-24 02:50 amWNW 8 11----30.36- 22.5- 20.1---
2025-12-24 02:40 amWNW 6 10----30.36- 22.1- 19.6---
2025-12-24 02:30 amWNW 7 10----30.36- 22.1- 19.8---
2025-12-24 02:20 amWNW 9 14----30.36- 22.1- 19.4---
2025-12-24 02:10 amWNW 10 13----30.36- 21.9- 18.9---
2025-12-24 02:00 am W 10 13----30.35+0.09 21.7- 18.9---
2025-12-24 01:50 amWNW 10 13----30.35- 21.7- 18.9---
2025-12-24 01:40 amWNW 12 17----30.34- 21.6- 18.5---
2025-12-24 01:30 amWNW 11 15----30.34- 21.7- 18.7---
2025-12-24 01:20 amWNW 13 18----30.34- 21.6- 18.7---
2025-12-24 01:10 amWNW 14 20----30.32- 21.7- 19.0---
2025-12-24 01:00 amWNW 13 18----30.31+0.07 21.9- 19.2---
2025-12-24 12:50 amWNW 16 20----30.31- 21.9- 19.2---
2025-12-24 12:40 amWNW 17 20----30.31- 22.3- 19.2---
2025-12-24 12:30 am NW 16 22----30.31- 22.3- 19.4---
2025-12-24 12:20 amWNW 19 24----30.31- 22.6- 19.9---
2025-12-24 12:10 am NW 18 22----30.29- 23.0- 20.8---
2025-12-24 12:00 am NW 18 22----30.29+0.11 23.4- 20.8---
2025-12-23 11:50 pmWNW 18 25----30.30- 23.2- 19.4---
2025-12-23 11:40 pm NW 18 24----30.29- 23.4- 19.0---
2025-12-23 11:30 pmWNW 21 29----30.29- 23.9- 20.3---
2025-12-23 11:20 pmWNW 22 27----30.27- 24.1- 20.1---
2025-12-23 11:10 pmWNW 24 30----30.26- 24.3- 20.7---
2025-12-23 11:00 pmWNW 25 31----30.26+0.08 24.6- 20.7---
2025-12-23 10:50 pmWNW 24 29----30.26- 24.8- 21.0---
2025-12-23 10:40 pmWNW 24 30----30.26- 25.3- 21.9---
2025-12-23 10:30 pmWNW 25 32----30.25- 25.7- 22.5---
2025-12-23 10:20 pmWNW 26 30----30.24- 26.1- 22.5---
2025-12-23 10:10 pmWNW 28 32----30.24- 26.4- 23.0---
2025-12-23 10:00 pmWNW 27 33----30.24+0.14 26.6- 23.0---
2025-12-23 09:50 pmWNW 28 33----30.24- 27.1- 22.6---
2025-12-23 09:40 pm W 30 34----30.22- 27.0- 21.7---
2025-12-23 09:30 pm W 29 36----30.21- 27.5- 22.8---
2025-12-23 09:20 pmWNW 28 34----30.21- 27.7- 22.8---
2025-12-23 09:10 pm W 31 36----30.23- 27.7- 22.5---
2025-12-23 09:00 pmWNW 34 39----30.18+0.11 27.7- 21.6---
2025-12-23 08:50 pmWNW 32 38----30.19- 28.0- 21.6---
2025-12-23 08:40 pm W 33 39----30.19- 28.0- 21.6---
2025-12-23 08:30 pm W 31 38----30.19- 28.2- 22.5---
2025-12-23 08:20 pm W 30 37----30.20- 28.4- 23.4---
2025-12-23 08:10 pm W 33 41----30.19- 28.2- 22.3---
2025-12-23 08:00 pm W 35 40----30.19+0.14 28.4- 22.1---
2025-12-23 07:50 pm W 36 41----30.17- 28.6- 23.0---
2025-12-23 07:40 pm W 34 42----30.14- 28.9- 23.5---
2025-12-23 07:30 pm W 37 44----30.14- 28.8- 24.3---
2025-12-23 07:20 pm W 40 45----30.14- 28.6- 23.4---
2025-12-23 07:10 pm W 39 45----30.13- 28.8- 23.5---
2025-12-23 07:00 pm W 41 46----30.11+0.13 28.9- 23.7---
2025-12-23 06:50 pm W 42 48----30.10- 28.8- 23.9---
2025-12-23 06:40 pm W 40 47----30.09- 28.9- 24.6---
2025-12-23 06:30 pm W 39 44----30.10- 29.1- 25.0---
2025-12-23 06:20 pm W 40 46----30.09- 29.5- 25.2---
2025-12-23 06:10 pm W 42 47----30.06- 29.7- 25.7---
2025-12-23 06:00 pm W 42 48----30.07+0.14 29.8- 26.8---
2025-12-23 05:50 pm W 42 47----30.05- 30.7- 27.9---
2025-12-23 05:40 pm W 38 45----30.05- 32.2- 28.9---
2025-12-23 05:30 pm W 35 42----30.06- 32.7- 28.6---
2025-12-23 05:20 pm W 33 39----30.07- 33.1- 28.9---
2025-12-23 05:10 pm W 36 43----30.05- 33.1- 28.9---
2025-12-23 05:00 pm W 35 42----30.04+0.14 33.4- 29.3---
2025-12-23 04:50 pm W 38 44----30.03- 33.6- 28.9---