Station List

Station APNM4 - Alpena Harbor Light, Alpena, MI Image indicating link to RSS feed of recent meteorological observations for station APNM4

Owned and maintained by Great Lakes Environmental Research Laboratory
C-MAN Station
45.060 N 83.424 W (45°3'35" N 83°25'25" W)

Site elevation: 177.5 m above mean sea level
Air temp height: 15 m above site elevation
Anemometer height: 18 m above site elevation

Search And Rescue (SAR) Data

Meteorological Observations from Nearby Stations and Ships Image indicating link to RSS feed of recent meteorological observations near station APNM4

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yellow diamond Stations with recent data
red diamond Stations with no data in last 8 hours
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Station APNM4

Conditions at APNM4 as of
(7:50 am EST)
1250 GMT on 02/02/2026:
     

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): S ( 180 deg true )
5-day plot - Wind Speed Wind Speed (WSPD): 8 kts
5-day plot - Wind Gust Wind Gust (GST): 9 kts
5-day plot - Air Temperature Air Temperature (ATMP): 16.0 °F
5-day plot - Wind Chill Wind Chill (CHILL): 4.5 °F
5-day plot - Wind Speed, Wind Gust and Atmospheric Pressure Combined plot of Wind Speed, Gust, and Air Pressure
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
2026-02-02 07:40 am S 9 9------ 15.8-----
2026-02-02 07:30 am S 11 11------ 15.4-----
2026-02-02 07:20 am S 10 11------ 15.4-----
2026-02-02 07:10 am S 10 11------ 15.3-----
2026-02-02 07:00 am S 8 8------ 14.4-----
2026-02-02 06:50 am S 5 6------ 12.2-----
2026-02-02 06:40 am S 3 4------ 11.5-----
2026-02-02 06:30 am S 5 5------ 11.7-----
2026-02-02 06:20 amSSW 5 6------ 11.5-----
2026-02-02 06:10 am S 6 6------ 12.0-----
2026-02-02 06:00 amSSW 3 4------ 12.0-----
2026-02-02 05:50 am S 4 5------ 12.4-----
2026-02-02 05:40 amSSE 4 6------ 11.7-----
2026-02-02 05:30 am SE 3 4------ 10.4-----
2026-02-02 05:20 am S 2 3------ 10.6-----
2026-02-02 05:10 am S 3 4------ 10.2-----
2026-02-02 05:00 amSSW 3 4------ 9.9-----
2026-02-02 04:50 am S 2 3------ 10.6-----
2026-02-02 04:40 amSSW 3 3------ 10.6-----
2026-02-02 04:30 am S 3 4------ 10.2-----
2026-02-02 04:20 am S 4 5------ 10.2-----
2026-02-02 04:10 amSSW 3 4------ 9.3-----
2026-02-02 04:00 am S 4 4------ 9.1-----
2026-02-02 03:50 am S 3 5------ 9.7-----
2026-02-02 03:40 amSSW 3 4------ 9.1-----
2026-02-02 03:30 amSSW 2 3------ 9.3-----
2026-02-02 03:20 am SW 2 2------ 9.9-----
2026-02-02 03:10 amSSW 2 2------ 10.0-----
2026-02-02 03:00 am S 1 2------ 10.2-----
2026-02-02 02:50 am SW 2 2------ 10.9-----
2026-02-02 02:40 am SW 2 2------ 10.2-----
2026-02-02 02:30 am- 0 1------ 10.2-----
2026-02-02 02:20 am- 0 1------ 10.8-----
2026-02-02 02:10 am W 1 2------ 11.1-----
2026-02-02 02:00 am- 0 1------ 11.1-----
2026-02-02 01:50 am- 0 0------ 10.8-----
2026-02-02 01:40 am- 0 0------ 10.4-----
2026-02-02 01:30 am- 0 1------ 10.4-----
2026-02-02 01:20 am- 0 0------ 10.9-----
2026-02-02 01:10 am- 0 0------ 11.5-----
2026-02-02 01:00 am- 0 1------ 11.7-----
2026-02-02 12:50 amSSW 1 1------ 11.8-----
2026-02-02 12:40 am- 0 1------ 12.0-----
2026-02-02 12:30 amSSW 1 1------ 11.8-----
2026-02-02 12:20 amSSW 1 1------ 11.8-----
2026-02-02 12:10 am S 1 1------ 11.5-----
2026-02-02 12:00 am S 1 2------ 11.7-----
2026-02-01 11:50 pm S 1 2------ 11.7-----
2026-02-01 11:30 pmSSW 2 2------ 12.6-----
2026-02-01 11:20 pmSSW 2 2------ 13.3-----
2026-02-01 11:10 pm SW 3 3------ 13.8-----
2026-02-01 11:00 pm SW 3 3------ 13.8-----
2026-02-01 10:50 pm SW 2 3------ 13.8-----
2026-02-01 10:40 pm SW 2 2------ 14.4-----
2026-02-01 10:30 pmWSW 3 3------ 14.5-----
2026-02-01 10:20 pm SW 3 4------ 14.7-----
2026-02-01 10:10 pmWSW 3 3------ 15.1-----
2026-02-01 10:00 pmWSW 2 3------ 13.8-----
2026-02-01 09:50 pm- 0 1------ 13.8-----
2026-02-01 09:40 pmWSW 1 2------ 15.6-----
2026-02-01 09:30 pmWSW 2 2------ 17.1-----
2026-02-01 09:20 pmWSW 2 3------ 17.2-----
2026-02-01 09:10 pmWSW 3 3------ 17.1-----
2026-02-01 09:00 pm W 4 5------ 16.7-----
2026-02-01 08:50 pmWNW 4 4------ 16.5-----
2026-02-01 08:40 pmWNW 3 4------ 17.4-----
2026-02-01 08:30 pm W 4 5------ 18.3-----
2026-02-01 08:20 pmWSW 6 7------ 18.7-----
2026-02-01 08:10 pm SW 6 6------ 19.0-----
2026-02-01 08:00 pm SW 6 6------ 19.4-----
2026-02-01 07:50 pm SW 7 7------ 20.7-----
2026-02-01 07:40 pm S 10 11------ 21.6-----
2026-02-01 07:30 pm S 10 10------ 21.7-----
2026-02-01 07:20 pm S 11 11------ 21.9-----
2026-02-01 07:10 pm S 11 12------ 22.3-----
2026-02-01 07:00 pm S 11 11------ 22.3-----
2026-02-01 06:50 pmSSE 9 9------ 22.6-----
2026-02-01 06:40 pmSSE 8 9------ 22.5-----
2026-02-01 06:30 pmSSE 8 9------ 22.5-----
2026-02-01 06:20 pmSSE 8 8------ 22.1-----
2026-02-01 06:10 pmSSE 8 9------ 22.1-----
2026-02-01 06:00 pmSSE 8 9------ 22.1-----
2026-02-01 05:50 pmSSE 8 9------ 21.7-----
2026-02-01 05:40 pmSSE 7 8------ 22.3-----
2026-02-01 05:30 pmSSE 7 7------ 22.5-----
2026-02-01 05:20 pmSSE 7 7------ 22.8-----
2026-02-01 05:10 pmSSE 7 7------ 22.8-----
2026-02-01 04:40 pm SE 5 6------ 22.8-----
2026-02-01 04:30 pm SE 2 2------ 22.8-----
2026-02-01 04:20 pm SE 2 2------ 22.6-----
2026-02-01 04:10 pmESE 2 2------ 22.5-----
2026-02-01 04:00 pmESE 2 2------ 22.1-----
2026-02-01 03:50 pmESE 3 3------ 21.9-----
2026-02-01 03:40 pmESE 4 4------ 21.7-----
2026-02-01 03:30 pmESE 4 4------ 21.6-----
2026-02-01 03:20 pmESE 4 4------ 21.2-----
2026-02-01 03:10 pmESE 4 4------ 21.0-----
2026-02-01 03:00 pmESE 4 4------ 20.7-----
2026-02-01 02:50 pm E 4 4------ 20.5-----
2026-02-01 02:40 pm E 4 4------ 20.5-----
2026-02-01 02:30 pm E 3 3------ 21.0-----
2026-02-01 02:10 pmESE 4 4------ 20.3-----
2026-02-01 02:00 pmESE 4 4------ 19.9-----
2026-02-01 01:50 pm SE 3 3------ 20.1-----
2026-02-01 01:40 pm SE 3 3------ 20.1-----
2026-02-01 01:30 pm SE 3 3------ 19.9-----
2026-02-01 01:20 pm SE 3 3------ 21.7-----
2026-02-01 01:10 pmSSE 3 3------ 21.0-----
2026-02-01 01:00 pm SE 3 3------ 21.0-----
2026-02-01 12:50 pm SE 2 2------ 21.4-----
2026-02-01 12:40 pm SE 3 3------ 22.8-----
2026-02-01 12:30 pmSSW 1 2------ 29.5-----
2026-02-01 12:20 pm SW 1 2------ 22.5-----
2026-02-01 12:10 pm W 3 3------ 21.4-----
2026-02-01 12:00 pmWNW 3 4------ 19.6-----
2026-02-01 11:50 am W 3 4------ 19.6-----
2026-02-01 11:40 am NW 4 4------ 17.8-----
2026-02-01 11:30 amWNW 4 4------ 16.9-----
2026-02-01 11:20 am NW 4 5------ 15.8-----
2026-02-01 11:10 amWNW 5 6------ 15.1-----
2026-02-01 11:00 am NW 5 6------ 14.2-----
2026-02-01 10:50 am NW 4 5------ 13.8-----
2026-02-01 10:40 am NW 4 5------ 12.6-----
2026-02-01 10:30 am NW 7 9------ 11.3-----
2026-02-01 10:20 am NW 8 10------ 10.6-----
2026-02-01 10:10 amWNW 11 12------ 9.3-----
2026-02-01 10:00 amWNW 10 12------ 8.2-----
2026-02-01 09:50 am NW 10 12------ 7.3-----
2026-02-01 09:40 amWNW 10 12------ 6.6-----
2026-02-01 09:30 am NW 10 13------ 5.9-----
2026-02-01 09:20 am NW 9 11------ 5.5-----
2026-02-01 09:10 amWNW 11 14------ 5.5-----
2026-02-01 09:00 amWNW 11 12------ 5.4-----
2026-02-01 08:50 am NW 11 13------ 5.2-----
2026-02-01 08:40 am NW 10 12------ 5.0-----
2026-02-01 08:30 amWNW 9 11------ 4.8-----
2026-02-01 08:20 am NW 9 11------ 4.5-----
2026-02-01 08:10 am NW 9 11------ 4.1-----
2026-02-01 08:00 am NW 9 10------ 3.9-----
2026-02-01 07:50 am NW 9 10------ 4.1-----