NOAA - Great Lakes Environmental Research Laboratory

Real-Time Meteorological Observation Network
South Haven, MI (SVNM4) 42° 24´ 05" N, 86° 17´ 20" W

See Metadata File for full description of instruments and parameters, as well as site maps. See also rtmon status, webcam status

Conditions at 2:30 am EDT on 03/29/2020 (DOY 089 06:30 GMT)
(Updated at about 02,17,32,47 minutes past the hour)

Wind Speed:	14.6 kts (7.5 m/s)
Max Wind Speed:	17.7 kts (9.1 m/s)
Wind Direction:	107° (ESE)
Air Temperature:	59.2 °F (15.1 °C)
Data & Plots of Previous 3 Hours (2 minute increments)
Data & Plots of Previous 5 Days (hourly increments)
1 Day Windrose Plot, 5 Day Windrose Plot, (explanation)

Click on image to enlarge
(images updated 2X per hour)
Webcam Location & Info

12-hr animations: 1 2 3 4
Previous 48 images: 1 2 3 4
All Images (past 10 days)

----- Previous 18 Hours (at top of hour) [English] [Metric] -----
YEAR	DOY	EDT	Wind Spd kts	Wind Gust kts	Peak Wind kts	Wind Dir deg	Air Tmp F	Wind Chill F
2020	089	0200	14.0	16.5	18.7	115	58.6	-99.0
2020	089	0100	17.7	23.3	24.9	111	56.1	-99.0
2020	089	0000	16.1	21.2	23.5	094	54.5	-99.0
2020	088	2300	3.9	7.2	21.8	084	53.4	-99.0
2020	088	2200	8.9	11.7	19.8	079	52.9	-99.0
2020	088	2100	15.2	17.1	25.1	076	52.9	-99.0
2020	088	2000	10.9	13.2	18.3	078	53.1	-99.0
2020	088	1900	8.4	10.1	19.2	084	54.1	-99.0
2020	088	1800	8.4	10.5	15.0	062	54.7	-99.0
2020	088	1700	9.3	11.7	14.0	069	55.0	-99.0
2020	088	1600	3.3	4.5	12.2	031	49.6	-99.0
2020	088	1500	3.3	4.5	9.1	126	53.8	-99.0
2020	088	1400	6.8	9.3	10.1	099	52.9	-99.0
2020	088	1300	11.1	14.2	17.3	103	50.7	-99.0
2020	088	1200	12.2	17.1	17.9	089	49.1	-99.0
2020	088	1100	10.3	15.0	17.1	067	47.7	-99.0
2020	088	1000	0.6	1.6	14.4	019	47.5	-99.0
2020	088	0900	10.3	14.6	15.9	067	47.8	-99.0

Note: Peak wind is max wind gust during entire hour
Note: Wind chill is set to -99 if air temp > 40 F or wind speed < 3 mph

Click here for today's 2-minute data: 20200329.08t.txt, data format (metadata)
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Click here for past data: 2020 | Archive

Access current marine observations on your mobile device. See NDBC's mobile access page.
These data are also available from NDBC website and NDBC's Dial-a-Buoy Program.
See also NWS Marine Forecast for this area, and NWS Recreational Beach Forecast

Realtime Data Disclaimer
Special thanks to Special thanks to ATON CG Group Muskegon, 9th USCG Group, State of Michigan
Historic Preservation Office, and the Michigan Maritime Museum in South Haven.

Additional Great Lakes Meteorological Observations

Real-Time Meteorological Observation NetworkSouth Haven, MI (SVNM4) 42° 24´ 05" N, 86° 17´ 20" W