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
(11:00 pm EDT on 07/05/2026)
0300 GMT on 07/06/2026:
     

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): N ( 350 deg true )
5-day plot - Wind Speed Wind Speed (WSPD): 4 kts
5-day plot - Wind Gust Wind Gust (GST): 5 kts
5-day plot - Air Temperature Air Temperature (ATMP): 66.7 °F
5-day plot - Wind Speed, Wind Gust and Atmospheric Pressure Combined plot of Wind Speed, Gust, and Air Pressure
Previous observations
TIME
(EDT)		 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
2026-07-05 10:50 pm N 3 4------ 67.1-----
2026-07-05 10:40 pm N 5 6------ 67.6-----
2026-07-05 10:30 pm N 4 5------ 68.2-----
2026-07-05 10:20 pm N 2 5------ 68.5-----
2026-07-05 10:10 pm N 3 4------ 68.7-----
2026-07-05 10:00 pm N 2 3------ 68.9-----
2026-07-05 09:50 pm N 2 2------ 69.3-----
2026-07-05 09:40 pm N 2 3------ 69.6-----
2026-07-05 09:30 pm N 3 4------ 70.3-----
2026-07-05 09:20 pm N 2 3------ 71.2-----
2026-07-05 09:10 pmNNE 2 3------ 72.3-----
2026-07-05 09:00 pmNNE 3 4------ 73.0-----
2026-07-05 08:50 pmNNE 3 5------ 73.4-----
2026-07-05 08:40 pm NE 3 4------ 72.5-----
2026-07-05 08:30 pmNNE 3 4------ 73.0-----
2026-07-05 08:20 pmENE 2 5------ 74.5-----
2026-07-05 08:10 pmENE 2 3------ 75.9-----
2026-07-05 08:00 pmENE 4 4------ 75.4-----
2026-07-05 07:50 pmENE 2 4------ 75.6-----
2026-07-05 07:40 pmNNE 2 5------ 75.7-----
2026-07-05 07:30 pm NE 3 5------ 74.5-----
2026-07-05 07:20 pm NE 3 6------ 75.2-----
2026-07-05 07:10 pm NE 6 8------ 73.9-----
2026-07-05 07:00 pm NE 5 7------ 74.8-----
2026-07-05 06:50 pmNNE 3 6------ 75.4-----
2026-07-05 06:40 pmENE 2 4------ 73.9-----
2026-07-05 06:30 pm E 3 4------ 72.5-----
2026-07-05 06:20 pmENE 3 5------ 72.1-----
2026-07-05 06:10 pm E 6 9------ 72.0-----
2026-07-05 06:00 pmENE 6 8------ 71.8-----
2026-07-05 05:50 pmENE 6 9------ 71.6-----
2026-07-05 05:40 pm E 6 8------ 71.1-----
2026-07-05 05:30 pm E 6 7------ 71.1-----
2026-07-05 05:20 pm E 6 7------ 70.7-----
2026-07-05 05:10 pm E 7 9------ 70.3-----
2026-07-05 05:00 pm E 8 9------ 70.0-----
2026-07-05 04:50 pm E 8 10------ 70.0-----
2026-07-05 04:40 pm E 9 10------ 69.8-----
2026-07-05 04:30 pm E 9 10------ 69.4-----
2026-07-05 04:20 pm E 7 8------ 68.9-----
2026-07-05 04:10 pm E 8 9------ 69.3-----
2026-07-05 04:00 pm E 7 8------ 69.3-----
2026-07-05 03:50 pm E 6 8------ 69.4-----
2026-07-05 03:40 pm E 7 8------ 69.4-----
2026-07-05 03:30 pm E 6 6------ 69.1-----
2026-07-05 03:20 pm E 5 6------ 69.6-----
2026-07-05 03:10 pm E 5 6------ 70.0-----
2026-07-05 03:00 pm E 6 7------ 70.0-----
2026-07-05 02:50 pm E 9 10------ 70.0-----
2026-07-05 02:40 pm E 7 8------ 69.6-----
2026-07-05 02:30 pm E 8 9------ 70.0-----
2026-07-05 02:20 pm E 9 10------ 69.6-----
2026-07-05 02:10 pm E 9 9------ 69.6-----
2026-07-05 01:50 pmESE 8 9------ 68.5-----
2026-07-05 01:40 pmESE 6 7------ 68.5-----
2026-07-05 01:30 pm E 8 9------ 68.5-----
2026-07-05 01:20 pm E 9 10------ 68.7-----
2026-07-05 01:10 pm E 10 11------ 68.5-----
2026-07-05 01:00 pm E 10 11------ 67.8-----
2026-07-05 12:50 pm E 11 12------ 67.6-----
2026-07-05 12:40 pm E 9 10------ 67.8-----
2026-07-05 12:30 pm E 8 9------ 67.6-----
2026-07-05 12:20 pm E 8 10------ 67.3-----
2026-07-05 12:10 pmESE 7 8------ 66.9-----
2026-07-05 12:00 pmESE 7 8------ 67.5-----
2026-07-05 11:50 am E 6 11------ 68.0-----
2026-07-05 11:40 amENE 6 10------ 68.2-----
2026-07-05 11:30 amENE 8 10------ 67.6-----
2026-07-05 11:20 amENE 6 10------ 67.5-----
2026-07-05 11:10 amENE 8 10------ 67.6-----
2026-07-05 11:00 amENE 8 10------ 67.5-----
2026-07-05 10:50 amENE 10 11------ 67.5-----
2026-07-05 10:40 amENE 10 12------ 67.1-----
2026-07-05 10:30 amENE 8 10------ 67.3-----
2026-07-05 10:20 amENE 8 11------ 67.1-----
2026-07-05 10:10 amENE 10 12------ 66.9-----
2026-07-05 10:00 amENE 9 12------ 66.9-----
2026-07-05 09:50 amENE 9 13------ 67.3-----
2026-07-05 09:40 amENE 5 9------ 67.5-----
2026-07-05 09:30 amENE 6 9------ 67.5-----
2026-07-05 09:20 amENE 8 12------ 67.6-----
2026-07-05 09:10 am NE 7 11------ 67.1-----
2026-07-05 08:50 amENE 6 9------ 67.5-----
2026-07-05 08:40 am NE 7 11------ 67.8-----
2026-07-05 08:30 amENE 10 15------ 67.6-----
2026-07-05 08:20 amENE 11 14------ 67.6-----
2026-07-05 08:10 amENE 8 11------ 67.3-----
2026-07-05 08:00 amENE 9 14------ 67.3-----
2026-07-05 07:50 amENE 11 17------ 67.5-----
2026-07-05 07:40 amENE 10 14------ 66.9-----
2026-07-05 07:30 amENE 6 12------ 66.9-----
2026-07-05 07:20 amENE 5 11------ 67.5-----
2026-07-05 07:10 amENE 8 13------ 66.6-----
2026-07-05 07:00 amENE 8 12------ 66.2-----
2026-07-05 06:50 amENE 6 12------ 66.0-----
2026-07-05 06:40 amENE 5 11------ 66.0-----
2026-07-05 06:30 amENE 9 13------ 66.0-----
2026-07-05 06:20 amENE 10 13------ 65.5-----
2026-07-05 06:10 amENE 8 15------ 65.5-----
2026-07-05 06:00 am NE 5 8------ 65.7-----
2026-07-05 05:50 amENE 5 9------ 65.7-----
2026-07-05 05:40 amENE 6 11------ 65.8-----
2026-07-05 05:30 am NE 7 13------ 65.8-----
2026-07-05 05:20 amNNE 5 8------ 65.5-----
2026-07-05 05:10 amNNE 6 10------ 65.8-----
2026-07-05 05:00 amNNE 7 8------ 65.7-----
2026-07-05 04:20 amNNE 7 10------ 66.4-----
2026-07-05 04:10 am N 6 8------ 66.4-----
2026-07-05 04:00 am N 6 8------ 66.4-----
2026-07-05 03:50 am N 7 9------ 66.6-----
2026-07-05 03:40 am N 5 7------ 66.7-----
2026-07-05 03:30 am N 5 8------ 66.6-----
2026-07-05 03:20 am N 3 4------ 66.2-----
2026-07-05 03:10 am N 3 4------ 66.2-----
2026-07-05 02:50 amNNE 6 8------ 65.5-----
2026-07-05 02:40 am N 5 7------ 65.5-----
2026-07-05 02:30 am N 5 9------ 65.5-----
2026-07-05 02:20 am N 6 8------ 65.7-----
2026-07-05 02:10 am N 5 7------ 66.4-----
2026-07-05 01:50 am N 5 6------ 66.2-----
2026-07-05 01:40 am N 4 6------ 65.8-----
2026-07-05 01:30 am N 4 5------ 66.0-----
2026-07-05 01:20 am N 3 5------ 66.2-----
2026-07-05 01:10 am N 2 4------ 66.6-----
2026-07-05 12:50 amNNW 4 5------ 66.9-----
2026-07-05 12:40 amNNW 3 4------ 66.9-----
2026-07-05 12:30 amNNW 3 4------ 66.9-----
2026-07-05 12:20 amNNW 1 2------ 67.1-----
2026-07-05 12:10 amNNW 2 3------ 66.9-----
2026-07-05 12:00 amNNW 2 3------ 67.3-----
2026-07-04 11:50 pm N 1 3------ 67.5-----
2026-07-04 11:40 pmNNW 3 4------ 67.8-----
2026-07-04 11:30 pmNNW 4 4------ 68.4-----
2026-07-04 11:20 pmNNW 3 3------ 68.9-----
2026-07-04 11:10 pmNNW 2 2------ 68.9-----
2026-07-04 11:00 pm N 1 1------ 69.3-----
2026-07-04 10:50 pm N 3 3------ 69.3-----