Station GSLM4 - Gravelly Shoal Light, MI

Owned and maintained by National Weather Service Central Region
Weather Station
44.018 N 83.537 W (44°1'6" N 83°32'14" W)

Site elevation: 179 m above mean sea level
Anemometer height: 25 m above site elevation

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Disclaimer

Conditions at GSLM4 as of
(4:40 am EDT)
0840 GMT on 09/18/2021:
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):	N ( 360 deg true )
	Wind Speed (WSPD):	17.1 kts
	Wind Gust (GST):	19.0 kts
	Atmospheric Pressure (PRES):	30.20 in
	Air Temperature (ATMP):	62.1 °F
	Wind Speed at 10 meters (WSPD10M):	15.5 kts
	Wind Speed at 20 meters (WSPD20M):	17.5 kts
	Combined plot of Wind Speed, Gust, and Air Pressure

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
09	18	4:30 am	N	17.1	19.0	-	-	-	-	30.19	-	62.2	-	-	-	-	-
09	18	4:20 am	N	15.9	19.0	-	-	-	-	30.20	-	62.2	-	-	-	-	-
09	18	4:10 am	N	19.0	20.0	-	-	-	-	30.19	-	62.2	-	-	-	-	-
09	18	4:00 am	N	18.1	22.0	-	-	-	-	30.19	+0.07	62.4	-	-	-	-	-
09	18	3:50 am	N	18.1	21.0	-	-	-	-	30.19	-	62.6	-	-	-	-	-
09	18	3:40 am	N	19.0	20.0	-	-	-	-	30.19	-	62.8	-	-	-	-	-
09	18	3:30 am	N	18.1	21.0	-	-	-	-	30.19	-	63.0	-	-	-	-	-
09	18	3:20 am	NNW	19.0	22.0	-	-	-	-	30.19	-	63.1	-	-	-	-	-
09	18	3:10 am	N	19.0	22.0	-	-	-	-	30.19	-	63.5	-	-	-	-	-
09	18	3:00 am	N	21.0	22.9	-	-	-	-	30.18	+0.07	63.7	-	-	-	-	-
09	18	2:50 am	NNW	21.0	25.1	-	-	-	-	30.18	-	64.0	-	-	-	-	-
09	18	2:40 am	NNW	20.0	22.9	-	-	-	-	30.17	-	64.4	-	-	-	-	-
09	18	2:30 am	NNW	21.0	24.1	-	-	-	-	30.16	-	64.6	-	-	-	-	-
09	18	2:20 am	N	22.0	24.1	-	-	-	-	30.16	-	64.8	-	-	-	-	-
09	18	2:10 am	N	22.9	26.0	-	-	-	-	30.15	-	64.9	-	-	-	-	-
09	18	2:00 am	N	22.0	27.0	-	-	-	-	30.15	-	65.3	-	-	-	-	-
09	18	1:50 am	N	25.1	27.0	-	-	-	-	30.15	-	65.8	-	-	-	-	-
09	18	1:40 am	N	24.1	27.0	-	-	-	-	30.14	-	66.0	-	-	-	-	-
09	18	1:30 am	N	24.1	27.0	-	-	-	-	30.14	-	66.6	-	-	-	-	-
09	18	1:20 am	N	24.1	25.1	-	-	-	-	30.14	-	67.1	-	-	-	-	-
09	18	1:10 am	N	22.0	26.0	-	-	-	-	30.13	-	67.5	-	-	-	-	-
09	18	1:00 am	N	22.9	25.1	-	-	-	-	30.12	+0.04	67.8	-	-	-	-	-
09	18	12:50 am	N	21.0	22.9	-	-	-	-	30.12	-	68.0	-	-	-	-	-
09	18	12:40 am	N	19.0	21.0	-	-	-	-	30.12	-	67.8	-	-	-	-	-
09	18	12:30 am	N	19.0	20.0	-	-	-	-	30.12	-	68.0	-	-	-	-	-
09	18	12:20 am	N	13.0	14.0	-	-	-	-	30.12	-	68.7	-	-	-	-	-
09	18	12:10 am	NNE	14.0	15.0	-	-	-	-	30.12	-	68.4	-	-	-	-	-
09	18	12:00 am	NNE	12.0	14.0	-	-	-	-	30.11	+0.05	68.2	-	-	-	-	-
09	17	11:50 pm	NNE	12.0	14.0	-	-	-	-	30.11	-	68.5	-	-	-	-	-
09	17	11:40 pm	NNE	9.9	12.0	-	-	-	-	30.11	-	69.1	-	-	-	-	-
09	17	11:30 pm	NNW	11.1	12.0	-	-	-	-	30.10	-	72.3	-	-	-	-	-
09	17	11:20 pm	NW	12.0	13.0	-	-	-	-	30.10	-	72.9	-	-	-	-	-
09	17	11:10 pm	NW	12.0	12.0	-	-	-	-	30.10	-	73.2	-	-	-	-	-
09	17	11:00 pm	NW	11.1	12.0	-	-	-	-	30.09	-	73.2	-	-	-	-	-
09	17	10:50 pm	WNW	8.9	9.9	-	-	-	-	30.09	-	73.9	-	-	-	-	-
09	17	10:40 pm	WNW	9.9	11.1	-	-	-	-	30.09	-	74.3	-	-	-	-	-
09	17	10:30 pm	WNW	9.9	12.0	-	-	-	-	30.09	-	74.7	-	-	-	-	-
09	17	10:20 pm	W	11.1	13.0	-	-	-	-	30.09	-	75.0	-	-	-	-	-
09	17	10:10 pm	W	12.0	15.0	-	-	-	-	30.08	-	75.4	-	-	-	-	-
09	17	10:00 pm	W	12.0	14.0	-	-	-	-	30.08	+0.05	75.2	-	-	-	-	-
09	17	9:50 pm	W	13.0	14.0	-	-	-	-	30.08	-	75.2	-	-	-	-	-
09	17	9:40 pm	W	11.1	15.0	-	-	-	-	30.08	-	75.4	-	-	-	-	-
09	17	9:30 pm	WSW	12.0	13.0	-	-	-	-	30.07	-	75.7	-	-	-	-	-
09	17	9:20 pm	WSW	12.0	12.0	-	-	-	-	30.07	-	76.3	-	-	-	-	-
09	17	9:10 pm	WSW	12.0	13.0	-	-	-	-	30.06	-	76.3	-	-	-	-	-
09	17	9:00 pm	WSW	12.0	14.0	-	-	-	-	30.06	+0.03	76.5	-	-	-	-	-
09	17	8:50 pm	SW	13.0	15.0	-	-	-	-	30.05	-	77.0	-	-	-	-	-
09	17	8:40 pm	SW	15.0	15.9	-	-	-	-	30.05	-	77.2	-	-	-	-	-
09	17	8:30 pm	SW	13.0	14.0	-	-	-	-	30.05	-	75.9	-	-	-	-	-
09	17	8:20 pm	SW	13.0	15.9	-	-	-	-	30.05	-	75.9	-	-	-	-	-
09	17	8:10 pm	SW	13.0	14.0	-	-	-	-	30.04	-	75.0	-	-	-	-	-
09	17	8:00 pm	SW	12.0	15.0	-	-	-	-	30.04	-	75.9	-	-	-	-	-
09	17	7:50 pm	SW	15.0	15.9	-	-	-	-	30.03	-	76.1	-	-	-	-	-
09	17	7:40 pm	SSW	13.0	14.0	-	-	-	-	30.03	-	75.2	-	-	-	-	-
09	17	7:30 pm	SW	14.0	15.0	-	-	-	-	30.03	-	76.6	-	-	-	-	-
09	17	7:20 pm	SW	12.0	15.9	-	-	-	-	30.03	-	76.8	-	-	-	-	-
09	17	7:10 pm	SW	14.0	15.9	-	-	-	-	30.03	-	76.8	-	-	-	-	-
09	17	7:00 pm	SSW	15.0	17.1	-	-	-	-	30.03	+0.00	77.2	-	-	-	-	-
09	17	6:50 pm	SSW	15.0	17.1	-	-	-	-	30.02	-	77.5	-	-	-	-	-
09	17	6:40 pm	SSW	15.0	15.9	-	-	-	-	30.02	-	78.3	-	-	-	-	-
09	17	6:30 pm	SW	14.0	17.1	-	-	-	-	30.02	-	78.6	-	-	-	-	-
09	17	6:20 pm	SW	17.1	18.1	-	-	-	-	30.03	-	78.6	-	-	-	-	-
09	17	6:10 pm	SW	14.0	15.9	-	-	-	-	30.03	-	77.0	-	-	-	-	-
09	17	6:00 pm	SW	12.0	14.0	-	-	-	-	30.03	-0.02	75.4	-	-	-	-	-
09	17	5:50 pm	SW	12.0	15.9	-	-	-	-	30.03	-	75.7	-	-	-	-	-
09	17	5:40 pm	SSW	15.0	15.9	-	-	-	-	30.03	-	76.5	-	-	-	-	-
09	17	5:30 pm	SSW	13.0	15.0	-	-	-	-	30.02	-	75.6	-	-	-	-	-
09	17	5:20 pm	SSW	6.0	9.9	-	-	-	-	30.03	-	75.0	-	-	-	-	-
09	17	5:10 pm	SSW	7.0	9.9	-	-	-	-	30.03	-	75.2	-	-	-	-	-
09	17	5:00 pm	S	4.1	7.0	-	-	-	-	30.02	-0.05	76.6	-	-	-	-	-
09	17	4:50 pm	E	4.1	15.0	-	-	-	-	30.01	-	76.1	-	-	-	-	-
09	17	4:40 pm	SE	8.9	14.0	-	-	-	-	30.01	-	75.6	-	-	-	-	-
09	17	4:30 pm	SSE	14.0	15.9	-	-	-	-	30.01	-	74.8	-	-	-	-	-
09	17	4:20 pm	SSE	14.0	15.0	-	-	-	-	30.02	-	74.5	-	-	-	-	-
09	17	4:10 pm	SSE	9.9	17.1	-	-	-	-	30.03	-	74.8	-	-	-	-	-
09	17	4:00 pm	SSE	12.0	15.9	-	-	-	-	30.03	-0.07	74.8	-	-	-	-	-
09	17	3:50 pm	SSE	15.9	19.0	-	-	-	-	30.02	-	74.1	-	-	-	-	-
09	17	3:40 pm	SSE	18.1	18.1	-	-	-	-	30.03	-	74.7	-	-	-	-	-
09	17	3:30 pm	SSE	14.0	15.9	-	-	-	-	30.03	-	74.7	-	-	-	-	-
09	17	3:20 pm	SE	8.0	14.0	-	-	-	-	30.04	-	73.9	-	-	-	-	-
09	17	3:10 pm	SSE	12.0	15.0	-	-	-	-	30.05	-	73.9	-	-	-	-	-
09	17	3:00 pm	SSE	13.0	14.0	-	-	-	-	30.05	-0.07	73.9	-	-	-	-	-
09	17	2:50 pm	SE	8.0	14.0	-	-	-	-	30.06	-	73.2	-	-	-	-	-
09	17	2:40 pm	SSE	11.1	13.0	-	-	-	-	30.06	-	73.0	-	-	-	-	-
09	17	2:30 pm	SSE	9.9	14.0	-	-	-	-	30.06	-	72.5	-	-	-	-	-
09	17	2:20 pm	SE	8.0	12.0	-	-	-	-	30.07	-	72.5	-	-	-	-	-
09	17	2:10 pm	SSE	9.9	14.0	-	-	-	-	30.07	-	72.1	-	-	-	-	-
09	17	2:00 pm	SSE	12.0	13.0	-	-	-	-	30.07	-0.06	72.1	-	-	-	-	-
09	17	1:50 pm	SSE	11.1	14.0	-	-	-	-	30.08	-	72.0	-	-	-	-	-
09	17	1:40 pm	SSE	9.9	11.1	-	-	-	-	30.09	-	72.0	-	-	-	-	-
09	17	1:30 pm	SE	4.1	5.1	-	-	-	-	30.10	-	71.6	-	-	-	-	-
09	17	1:20 pm	S	1.0	6.0	-	-	-	-	30.11	-	71.2	-	-	-	-	-
09	17	1:10 pm	SE	4.1	8.9	-	-	-	-	30.10	-	71.1	-	-	-	-	-
09	17	1:00 pm	SE	7.0	11.1	-	-	-	-	30.10	-0.02	70.5	-	-	-	-	-
09	17	12:50 pm	SSE	8.9	12.0	-	-	-	-	30.10	-	70.2	-	-	-	-	-
09	17	12:40 pm	SE	7.0	11.1	-	-	-	-	30.10	-	70.3	-	-	-	-	-
09	17	12:30 pm	SE	5.1	8.0	-	-	-	-	30.11	-	70.2	-	-	-	-	-
09	17	12:20 pm	SE	6.0	8.0	-	-	-	-	30.11	-	70.0	-	-	-	-	-
09	17	12:10 pm	SSE	4.1	6.0	-	-	-	-	30.11	-	69.4	-	-	-	-	-
09	17	12:00 pm	S	1.0	7.0	-	-	-	-	30.12	-0.01	68.5	-	-	-	-	-
09	17	11:50 am	SSW	5.1	9.9	-	-	-	-	30.12	-	67.8	-	-	-	-	-
09	17	11:40 am	SSW	7.0	9.9	-	-	-	-	30.12	-	67.5	-	-	-	-	-
09	17	11:30 am	SSW	7.0	11.1	-	-	-	-	30.12	-	67.1	-	-	-	-	-
09	17	11:20 am	SSW	5.1	11.1	-	-	-	-	30.13	-	66.7	-	-	-	-	-
09	17	11:10 am	SSW	6.0	9.9	-	-	-	-	30.13	-	66.6	-	-	-	-	-
09	17	11:00 am	SSW	5.1	9.9	-	-	-	-	30.13	+0.01	66.4	-	-	-	-	-
09	17	10:50 am	SSW	5.1	9.9	-	-	-	-	30.13	-	66.2	-	-	-	-	-
09	17	10:40 am	SSW	6.0	12.0	-	-	-	-	30.12	-	66.2	-	-	-	-	-
09	17	10:30 am	SSW	6.0	9.9	-	-	-	-	30.13	-	66.2	-	-	-	-	-
09	17	10:20 am	SSW	4.1	11.1	-	-	-	-	30.13	-	66.0	-	-	-	-	-
09	17	10:10 am	SSW	9.9	12.0	-	-	-	-	30.12	-	66.0	-	-	-	-	-
09	17	10:00 am	SSW	9.9	12.0	-	-	-	-	30.12	+0.02	66.2	-	-	-	-	-
09	17	9:50 am	SSW	9.9	12.0	-	-	-	-	30.13	-	66.2	-	-	-	-	-
09	17	9:40 am	SSW	8.0	8.9	-	-	-	-	30.13	-	65.8	-	-	-	-	-
09	17	9:30 am	SW	8.0	8.9	-	-	-	-	30.13	-	65.7	-	-	-	-	-
09	17	9:20 am	SW	8.0	12.0	-	-	-	-	30.13	-	65.3	-	-	-	-	-
09	17	9:10 am	SW	11.1	12.0	-	-	-	-	30.13	-	65.8	-	-	-	-	-
09	17	9:00 am	SW	9.9	17.1	-	-	-	-	30.13	+0.05	66.9	-	-	-	-	-
09	17	8:50 am	SSW	12.0	17.1	-	-	-	-	30.13	-	67.1	-	-	-	-	-
09	17	8:40 am	SSW	8.0	14.0	-	-	-	-	30.12	-	67.1	-	-	-	-	-
09	17	8:30 am	SSW	5.1	12.0	-	-	-	-	30.13	-	67.1	-	-	-	-	-
09	17	8:20 am	SSW	8.9	14.0	-	-	-	-	30.12	-	67.1	-	-	-	-	-
09	17	8:10 am	SSW	7.0	15.0	-	-	-	-	30.12	-	67.3	-	-	-	-	-
09	17	8:00 am	SSW	12.0	17.1	-	-	-	-	30.12	+0.04	67.8	-	-	-	-	-
09	17	7:50 am	SSW	4.1	9.9	-	-	-	-	30.11	-	67.8	-	-	-	-	-
09	17	7:40 am	S	1.0	5.1	-	-	-	-	30.11	-	67.5	-	-	-	-	-
09	17	7:30 am	S	1.9	7.0	-	-	-	-	30.11	-	67.1	-	-	-	-	-
09	17	7:20 am	SSE	4.1	9.9	-	-	-	-	30.11	-	66.9	-	-	-	-	-
09	17	7:10 am	SE	6.0	8.0	-	-	-	-	30.10	-	66.9	-	-	-	-	-
09	17	7:00 am	SSE	5.1	12.0	-	-	-	-	30.10	+0.01	66.7	-	-	-	-	-
09	17	6:50 am	SSE	9.9	15.9	-	-	-	-	30.09	-	66.6	-	-	-	-	-
09	17	6:40 am	SSE	14.0	17.1	-	-	-	-	30.09	-	66.6	-	-	-	-	-
09	17	6:30 am	SSE	14.0	17.1	-	-	-	-	30.08	-	66.6	-	-	-	-	-
09	17	6:20 am	SSE	14.0	15.9	-	-	-	-	30.08	-	66.4	-	-	-	-	-
09	17	6:10 am	SSE	14.0	15.9	-	-	-	-	30.08	-	66.4	-	-	-	-	-
09	17	6:00 am	SSE	13.0	15.9	-	-	-	-	30.08	-0.03	66.4	-	-	-	-	-
09	17	5:50 am	SSE	14.0	17.1	-	-	-	-	30.08	-	66.4	-	-	-	-	-
09	17	5:40 am	SSE	15.0	17.1	-	-	-	-	30.09	-	66.4	-	-	-	-	-
09	17	5:30 am	SSE	14.0	15.9	-	-	-	-	30.08	-	66.2	-	-	-	-	-
09	17	5:20 am	SSE	15.0	17.1	-	-	-	-	30.08	-	66.2	-	-	-	-	-
09	17	5:10 am	SSE	15.0	17.1	-	-	-	-	30.08	-	66.0	-	-	-	-	-
09	17	5:00 am	SSE	15.9	18.1	-	-	-	-	30.08	-0.04	66.0	-	-	-	-	-
09	17	4:50 am	SSE	15.9	18.1	-	-	-	-	30.08	-	66.0	-	-	-	-	-

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.