Station List

Station 45175 - Mackinac Straits West, Mackinaw City, MI

Station operated by Michigan Technological University
Buoy
45.825 N 84.772 W (45°49'31" N 84°46'20" W)

Site elevation: 176 m above mean sea level
Air temp height: 1.7 m above site elevation
Anemometer height: 1.7 m above site elevation
Barometer elevation: 177.7 m above mean sea level
Sea temp depth: 1 m below water line

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Conditions at 45175 as of
(6:40 pm EDT)
2240 GMT on 07/04/2026:
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):	SSE ( 150 deg true )
Wind Speed (WSPD):	9.7 kts
Wind Gust (GST):	11.7 kts
Wave Height (WVHT):	0.7 ft
Mean Wave Direction (MWD):	S ( 189 deg true )
Atmospheric Pressure (PRES):	29.97 in
Air Temperature (ATMP):	70.0 °F
Water Temperature (WTMP):	66.9 °F
Dew Point (DEWP):	62.2 °F
Wind Speed at 10 meters (WSPD10M):	11.7 kts
Wind Speed at 20 meters (WSPD20M):	13.6 kts
Combined plot of Wind Speed, Gust, and Air Pressure

Previous observations
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
2026-07-04 06:20 pm	SSE	9.7	13.6	0.7	-	-	S	29.97	-	69.8	66.7	62.6	-	-	-
2026-07-04 06:00 pm	SSE	7.8	9.7	0.7	-	-	S	29.98	-0.03	69.3	66.7	63.5	-	-	-
2026-07-04 05:40 pm	SE	5.8	7.8	0.7	-	-	S	29.98	-	69.4	66.9	63.9	-	-	-
2026-07-04 05:20 pm	SE	7.8	9.7	0.3	-	-	S	29.98	-	69.8	66.7	63.1	-	-	-
2026-07-04 05:00 pm	SE	5.8	7.8	0.7	-	-	S	29.99	-0.02	68.9	66.6	63.7	-	-	-
2026-07-04 04:40 pm	ESE	5.8	5.8	0.7	-	-	SSW	30.01	-	68.9	66.7	63.9	-	-	-
2026-07-04 04:20 pm	ESE	5.8	7.8	0.7	-	-	S	30.01	-	68.9	66.7	63.7	-	-	-
2026-07-04 04:00 pm	ESE	7.8	9.7	0.7	-	-	S	30.01	+0.00	69.4	66.7	63.0	-	-	-
2026-07-04 03:40 pm	ESE	7.8	7.8	0.7	-	-	SSW	30.01	-	68.7	66.6	63.3	-	-	-
2026-07-04 03:20 pm	ESE	5.8	7.8	0.7	-	-	SSW	30.01	-	68.4	66.6	63.9	-	-	-
2026-07-04 03:00 pm	E	5.8	7.8	0.7	-	-	SW	30.01	+0.00	68.5	66.4	63.7	-	-	-
2026-07-04 02:40 pm	E	7.8	9.7	0.7	-	-	SW	30.01	-	68.4	66.4	63.5	-	-	-
2026-07-04 02:20 pm	E	7.8	9.7	0.7	-	-	SW	30.01	-	68.2	66.2	63.7	-	-	-
2026-07-04 02:00 pm	ESE	5.8	7.8	0.7	-	-	SW	30.01	+0.02	68.0	66.2	63.7	-	-	-
2026-07-04 01:40 pm	ESE	5.8	7.8	0.7	-	-	WSW	30.02	-	67.8	66.0	63.7	-	-	-
2026-07-04 01:20 pm	ESE	5.8	7.8	0.7	-	-	SW	30.02	-	67.8	66.0	63.7	-	-	-
2026-07-04 01:00 pm	ESE	7.8	11.7	0.7	-	-	SW	30.01	+0.02	68.2	66.0	63.3	-	-	-
2026-07-04 12:40 pm	ESE	9.7	11.7	0.7	-	-	SW	30.01	-	67.8	66.0	63.1	-	-	-
2026-07-04 12:20 pm	E	9.7	11.7	0.7	-	-	WSW	30.01	-	67.8	66.0	63.1	-	-	-
2026-07-04 12:00 pm	ESE	9.7	13.6	0.7	-	-	WSW	30.01	+0.01	67.8	65.8	63.0	-	-	-
2026-07-04 11:40 am	ESE	9.7	11.7	0.3	-	-	WSW	30.01	-	67.8	65.8	63.0	-	-	-
2026-07-04 11:20 am	ESE	7.8	9.7	0.3	-	-	WSW	30.01	-	68.0	65.8	63.3	-	-	-
2026-07-04 11:00 am	E	5.8	7.8	0.3	-	-	WSW	30.00	+0.00	67.6	65.7	63.5	-	-	-
2026-07-04 10:40 am	E	7.8	9.7	0.3	-	-	WSW	29.99	-	68.2	65.7	63.5	-	-	-
2026-07-04 10:20 am	E	7.8	9.7	0.3	-	-	W	30.00	-	68.4	65.7	63.3	-	-	-
2026-07-04 10:00 am	E	9.7	13.6	0.3	-	-	WNW	29.99	+0.01	68.4	65.7	63.1	-	-	-
2026-07-04 09:40 am	E	7.8	9.7	0.3	-	-	ENE	29.99	-	67.6	65.7	63.1	-	-	-
2026-07-04 09:20 am	E	5.8	7.8	0.3	-	-	NNW	29.99	-	67.1	65.5	62.8	-	-	-
2026-07-04 09:00 am	E	3.9	5.8	0.3	-	-	NNW	29.99	+0.03	66.9	65.5	62.4	-	-	-
2026-07-04 08:40 am	E	3.9	5.8	0.0	-	-	SSE	29.99	-	66.6	65.3	62.8	-	-	-
2026-07-04 08:20 am	N	1.9	3.9	0.3	-	-	SE	29.99	-	65.8	65.3	62.4	-	-	-
2026-07-04 08:00 am	N	3.9	3.9	0.0	-	-	SW	29.99	+0.04	65.5	65.3	62.1	-	-	-
2026-07-04 07:40 am	NNE	3.9	5.8	0.0	-	-	SW	29.99	-	65.5	65.3	62.1	-	-	-
2026-07-04 07:20 am	NNE	1.9	3.9	0.0	-	-	SW	29.98	-	65.5	65.3	62.2	-	-	-
2026-07-04 07:00 am	NNE	3.9	3.9	0.0	-	-	SSW	29.98	+0.03	65.7	65.5	62.4	-	-	-
2026-07-04 06:40 am	NNE	3.9	3.9	0.0	-	-	SW	29.98	-	65.5	65.7	62.1	-	-	-
2026-07-04 06:20 am	N	3.9	5.8	0.0	-	-	SW	29.98	-	66.2	65.5	63.0	-	-	-
2026-07-04 06:00 am	N	1.9	3.9	0.0	-	-	WSW	29.97	+0.00	66.4	65.5	63.1	-	-	-
2026-07-04 05:40 am	N	3.9	5.8	0.3	-	-	WSW	29.96	-	66.4	65.5	64.0	-	-	-
2026-07-04 05:20 am	WNW	3.9	3.9	0.3	-	-	WSW	29.96	-	66.0	65.3	65.1	-	-	-
2026-07-04 05:00 am	WSW	3.9	7.8	0.3	-	-	WSW	29.96	+0.00	65.8	65.5	65.1	-	-	-
2026-07-04 04:40 am	WSW	5.8	7.8	0.3	-	-	W	29.96	-	65.8	65.5	65.1	-	-	-
2026-07-04 04:20 am	WSW	3.9	5.8	0.3	-	-	WSW	29.96	-	65.7	65.7	64.9	-	-	-
2026-07-04 04:00 am	WSW	3.9	5.8	0.3	-	-	SW	29.96	+0.01	65.7	65.7	64.9	-	-	-
2026-07-04 03:40 am	WSW	3.9	3.9	0.3	-	-	SW	29.96	-	65.8	65.5	64.9	-	-	-
2026-07-04 03:20 am	SW	1.9	3.9	0.3	-	-	SW	29.96	-	66.6	65.5	65.3	-	-	-
2026-07-04 03:00 am	NW	1.9	1.9	0.3	-	-	WSW	29.96	+0.00	67.1	65.5	65.7	-	-	-
2026-07-04 02:40 am	WNW	1.9	3.9	0.3	-	-	E	29.96	-	66.7	65.5	65.5	-	-	-
2026-07-04 02:20 am	NW	3.9	3.9	0.3	-	-	SSW	29.95	-	66.6	65.5	65.5	-	-	-
2026-07-04 02:00 am	NNW	3.9	5.8	0.3	-	-	SSW	29.95	+0.00	66.4	65.5	65.3	-	-	-
2026-07-04 01:40 am	NW	5.8	5.8	0.3	-	-	SW	29.95	-	66.4	65.5	65.3	-	-	-
2026-07-04 01:20 am	W	3.9	5.8	0.3	-	-	SW	29.94	-	66.4	65.3	65.3	-	-	-
2026-07-04 01:00 am	NNW	1.9	3.9	0.3	-	-	SSW	29.94	+0.00	66.4	65.5	65.3	-	-	-
2026-07-04 12:40 am	NW	3.9	3.9	0.7	-	-	S	29.95	-	66.4	65.5	65.3	-	-	-
2026-07-04 12:00 am	N	1.9	1.9	0.3	-	-	SW	29.96	+0.01	66.2	65.5	64.9	-	-	-
2026-07-03 11:40 pm	W	1.9	1.9	0.3	-	-	ESE	29.97	-	66.2	65.7	65.1	-	-	-
2026-07-03 11:20 pm	W	1.9	3.9	0.3	-	-	ESE	29.96	-	66.4	65.7	65.1	-	-	-
2026-07-03 11:00 pm	WSW	3.9	5.8	0.3	-	-	ESE	29.96	-0.01	66.4	65.7	65.1	-	-	-
2026-07-03 10:40 pm	W	3.9	5.8	0.3	-	-	SSW	29.96	-	66.4	65.7	65.1	-	-	-
2026-07-03 10:20 pm	W	1.9	1.9	0.7	-	-	SE	29.96	-	66.6	65.8	65.1	-	-	-
2026-07-03 10:00 pm	NW	1.9	3.9	0.7	-	-	E	29.95	-0.02	66.6	66.0	65.1	-	-	-
2026-07-03 09:40 pm	W	1.9	3.9	0.7	-	-	S	29.95	-	66.9	66.2	65.3	-	-	-
2026-07-03 09:20 pm	-	0.0	1.9	0.7	-	-	S	29.95	-	67.1	66.0	65.5	-	-	-
2026-07-03 09:00 pm	S	1.9	3.9	0.7	-	-	SE	29.95	+0.00	66.6	65.8	65.3	-	-	-
2026-07-03 08:40 pm	SSW	3.9	5.8	0.7	-	-	SSE	29.95	-	66.9	65.7	65.3	-	-	-
2026-07-03 08:20 pm	WNW	7.8	9.7	1.0	-	-	S	29.96	-	67.6	65.7	65.7	-	-	-
2026-07-03 08:00 pm	W	5.8	9.7	1.0	-	-	SSW	29.97	+0.01	66.7	65.7	65.3	-	-	-
2026-07-03 07:40 pm	W	9.7	11.7	1.0	-	-	SSW	29.97	-	67.1	65.7	65.1	-	-	-
2026-07-03 07:20 pm	WSW	11.7	13.6	1.0	-	-	SSW	29.97	-	67.6	65.8	65.3	-	-	-
2026-07-03 07:00 pm	W	9.7	11.7	1.0	-	-	SSW	29.96	+0.00	68.2	65.8	65.7	-	-	-

Wave Summary
for 45175 as of (6:40 pm EDT)
2240 GMT on 07/04/2026:
These wave data are displayed in rounded times. 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.
Significant Wave Height (WVHT):	0.7 ft

Previous observations
TIME (EDT)	WVHT ft	SwH ft	SwP sec	SwD	WWH ft	WWP sec	WWD	STEEPNESS	APD sec
2026-07-04 06:20 pm	0.7	-	-	-	-	-	-	N/A	-
2026-07-04 06:00 pm	0.7	-	-	-	-	-	-	N/A	-
2026-07-04 05:40 pm	0.7	-	-	-	-	-	-	N/A	-
2026-07-04 05:20 pm	0.3	-	-	-	-	-	-	N/A	-
2026-07-04 05:00 pm	0.7	-	-	-	-	-	-	N/A	-
2026-07-04 04:40 pm	0.7	-	-	-	-	-	-	N/A	-
2026-07-04 04:20 pm	0.7	-	-	-	-	-	-	N/A	-
2026-07-04 04:00 pm	0.7	-	-	-	-	-	-	N/A	-
2026-07-04 03:40 pm	0.7	-	-	-	-	-	-	N/A	-
2026-07-04 03:20 pm	0.7	-	-	-	-	-	-	N/A	-
2026-07-04 03:00 pm	0.7	-	-	-	-	-	-	N/A	-
2026-07-04 02:40 pm	0.7	-	-	-	-	-	-	N/A	-
2026-07-04 02:20 pm	0.7	-	-	-	-	-	-	N/A	-
2026-07-04 02:00 pm	0.7	-	-	-	-	-	-	N/A	-
2026-07-04 01:40 pm	0.7	-	-	-	-	-	-	N/A	-
2026-07-04 01:20 pm	0.7	-	-	-	-	-	-	N/A	-
2026-07-04 01:00 pm	0.7	-	-	-	-	-	-	N/A	-
2026-07-04 12:40 pm	0.7	-	-	-	-	-	-	N/A	-
2026-07-04 12:20 pm	0.7	-	-	-	-	-	-	N/A	-
2026-07-04 12:00 pm	0.7	-	-	-	-	-	-	N/A	-
2026-07-04 11:40 am	0.3	-	-	-	-	-	-	N/A	-
2026-07-04 11:20 am	0.3	-	-	-	-	-	-	N/A	-
2026-07-04 11:00 am	0.3	-	-	-	-	-	-	N/A	-
2026-07-04 10:40 am	0.3	-	-	-	-	-	-	N/A	-
2026-07-04 10:20 am	0.3	-	-	-	-	-	-	N/A	-
2026-07-04 10:00 am	0.3	-	-	-	-	-	-	N/A	-
2026-07-04 09:40 am	0.3	-	-	-	-	-	-	N/A	-
2026-07-04 09:20 am	0.3	-	-	-	-	-	-	N/A	-
2026-07-04 09:00 am	0.3	-	-	-	-	-	-	N/A	-
2026-07-04 08:40 am	0.0	-	-	-	-	-	-	N/A	-
2026-07-04 08:20 am	0.3	-	-	-	-	-	-	N/A	-
2026-07-04 08:00 am	0.0	-	-	-	-	-	-	N/A	-
2026-07-04 07:40 am	0.0	-	-	-	-	-	-	N/A	-
2026-07-04 07:20 am	0.0	-	-	-	-	-	-	N/A	-
2026-07-04 07:00 am	0.0	-	-	-	-	-	-	N/A	-
2026-07-04 06:40 am	0.0	-	-	-	-	-	-	N/A	-
2026-07-04 06:20 am	0.0	-	-	-	-	-	-	N/A	-
2026-07-04 06:00 am	0.0	-	-	-	-	-	-	N/A	-
2026-07-04 05:40 am	0.3	-	-	-	-	-	-	N/A	-
2026-07-04 05:20 am	0.3	-	-	-	-	-	-	N/A	-
2026-07-04 05:00 am	0.3	-	-	-	-	-	-	N/A	-
2026-07-04 04:40 am	0.3	-	-	-	-	-	-	N/A	-
2026-07-04 04:20 am	0.3	-	-	-	-	-	-	N/A	-
2026-07-04 04:00 am	0.3	-	-	-	-	-	-	N/A	-
2026-07-04 03:40 am	0.3	-	-	-	-	-	-	N/A	-
2026-07-04 03:20 am	0.3	-	-	-	-	-	-	N/A	-
2026-07-04 03:00 am	0.3	-	-	-	-	-	-	N/A	-
2026-07-04 02:40 am	0.3	-	-	-	-	-	-	N/A	-
2026-07-04 02:20 am	0.3	-	-	-	-	-	-	N/A	-
2026-07-04 02:00 am	0.3	-	-	-	-	-	-	N/A	-
2026-07-04 01:40 am	0.3	-	-	-	-	-	-	N/A	-
2026-07-04 01:20 am	0.3	-	-	-	-	-	-	N/A	-
2026-07-04 01:00 am	0.3	-	-	-	-	-	-	N/A	-
2026-07-04 12:40 am	0.7	-	-	-	-	-	-	N/A	-
2026-07-04 12:00 am	0.3	-	-	-	-	-	-	N/A	-
2026-07-03 11:40 pm	0.3	-	-	-	-	-	-	N/A	-
2026-07-03 11:20 pm	0.3	-	-	-	-	-	-	N/A	-
2026-07-03 11:00 pm	0.3	-	-	-	-	-	-	N/A	-
2026-07-03 10:40 pm	0.3	-	-	-	-	-	-	N/A	-
2026-07-03 10:20 pm	0.7	-	-	-	-	-	-	N/A	-
2026-07-03 10:00 pm	0.7	-	-	-	-	-	-	N/A	-
2026-07-03 09:40 pm	0.7	-	-	-	-	-	-	N/A	-
2026-07-03 09:20 pm	0.7	-	-	-	-	-	-	N/A	-
2026-07-03 09:00 pm	0.7	-	-	-	-	-	-	N/A	-
2026-07-03 08:40 pm	0.7	-	-	-	-	-	-	N/A	-
2026-07-03 08:20 pm	1.0	-	-	-	-	-	-	N/A	-
2026-07-03 08:00 pm	1.0	-	-	-	-	-	-	N/A	-
2026-07-03 07:40 pm	1.0	-	-	-	-	-	-	N/A	-
2026-07-03 07:20 pm	1.0	-	-	-	-	-	-	N/A	-
2026-07-03 07:00 pm	1.0	-	-	-	-	-	-	N/A	-

Solar Radiation Conditions at 45175 as of
(6:40 pm EDT)
2240 GMT on 07/04/2026:
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.
Short Wave Radiation 1 (SRAD1):	456.4	watts/meter²

Previous observations
TIME (EDT)	SRAD1 w/m²	SRAD2 w/m²	LRAD w/m²
2026-07-04 06:20 pm	541.8	-	-
2026-07-04 06:00 pm	584.4	-	-
2026-07-04 05:40 pm	623.5	-	-
2026-07-04 05:20 pm	686.5	-	-
2026-07-04 05:00 pm	726.2	-	-
2026-07-04 04:40 pm	771.5	-	-
2026-07-04 04:20 pm	815.0	-	-
2026-07-04 04:00 pm	836.3	-	-
2026-07-04 03:40 pm	840.4	-	-
2026-07-04 03:20 pm	952.1	-	-
2026-07-04 03:00 pm	949.8	-	-
2026-07-04 02:40 pm	972.8	-	-
2026-07-04 02:20 pm	672.9	-	-
2026-07-04 02:00 pm	625.9	-	-
2026-07-04 01:40 pm	598.9	-	-
2026-07-04 01:20 pm	694.2	-	-
2026-07-04 01:00 pm	680.0	-	-
2026-07-04 12:40 pm	478.1	-	-
2026-07-04 12:20 pm	485.1	-	-
2026-07-04 12:00 pm	617.2	-	-
2026-07-04 11:40 am	518.7	-	-
2026-07-04 11:20 am	479.9	-	-
2026-07-04 11:00 am	495.0	-	-
2026-07-04 10:40 am	635.7	-	-
2026-07-04 10:20 am	599.8	-	-
2026-07-04 10:00 am	579.0	-	-
2026-07-04 09:40 am	527.1	-	-
2026-07-04 09:20 am	469.7	-	-
2026-07-04 09:00 am	392.8	-	-
2026-07-04 08:40 am	179.3	-	-
2026-07-04 08:20 am	241.0	-	-
2026-07-04 08:00 am	143.9	-	-
2026-07-04 07:40 am	179.4	-	-
2026-07-04 07:20 am	94.2	-	-
2026-07-04 07:00 am	75.1	-	-
2026-07-04 06:40 am	38.0	-	-
2026-07-04 06:20 am	18.4	-	-
2026-07-04 06:00 am	3.6	-	-
2026-07-04 05:40 am	0.4	-	-
2026-07-04 05:20 am	0.0	-	-
2026-07-04 05:00 am	0.0	-	-
2026-07-04 04:40 am	0.0	-	-
2026-07-04 04:20 am	0.0	-	-
2026-07-04 04:00 am	0.0	-	-
2026-07-04 03:40 am	0.0	-	-
2026-07-04 03:20 am	0.0	-	-
2026-07-04 03:00 am	0.0	-	-
2026-07-04 02:40 am	0.0	-	-
2026-07-04 02:20 am	0.0	-	-
2026-07-04 02:00 am	0.0	-	-
2026-07-04 01:40 am	0.0	-	-
2026-07-04 01:20 am	0.0	-	-
2026-07-04 01:00 am	0.0	-	-
2026-07-04 12:40 am	0.0	-	-
2026-07-04 12:00 am	0.0	-	-
2026-07-03 11:40 pm	0.0	-	-
2026-07-03 11:20 pm	0.0	-	-
2026-07-03 11:00 pm	0.0	-	-
2026-07-03 10:40 pm	0.0	-	-
2026-07-03 10:20 pm	0.0	-	-
2026-07-03 10:00 pm	0.0	-	-
2026-07-03 09:40 pm	1.2	-	-
2026-07-03 09:20 pm	4.5	-	-
2026-07-03 09:00 pm	16.8	-	-
2026-07-03 08:40 pm	25.6	-	-
2026-07-03 08:20 pm	44.6	-	-
2026-07-03 08:00 pm	70.4	-	-
2026-07-03 07:40 pm	109.7	-	-
2026-07-03 07:20 pm	218.8	-	-
2026-07-03 07:00 pm	208.6	-	-

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 prior months and years.

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