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
(9:40 pm EDT on 06/30/2026)
0140 GMT on 07/01/2026:
     

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):WSW ( 240 deg true )
5-day plot - Wind Speed Wind Speed (WSPD): 10 kts
5-day plot - Wind Gust Wind Gust (GST): 12 kts
5-day plot - Air Temperature Air Temperature (ATMP): 86.4 °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
2026-06-30 09:30 pmWSW 11 14------ 86.7-----
2026-06-30 09:20 pmWSW 8 10------ 86.7-----
2026-06-30 09:10 pmWSW 9 10------ 87.3-----
2026-06-30 09:00 pmWSW 10 14------ 87.8-----
2026-06-30 08:50 pmWSW 8 10------ 88.3-----
2026-06-30 08:40 pmWSW 8 11------ 88.9-----
2026-06-30 08:30 pmWSW 9 11------ 89.4-----
2026-06-30 08:20 pmWSW 15 17------ 89.8-----
2026-06-30 08:10 pmWSW 13 15------ 90.0-----
2026-06-30 08:00 pmWSW 13 14------ 90.3-----
2026-06-30 06:50 pm W 11 14------ 90.3-----
2026-06-30 06:40 pm W 11 13------ 90.5-----
2026-06-30 06:30 pm W 11 14------ 91.2-----
2026-06-30 06:20 pm SW 8 12------ 90.7-----
2026-06-30 06:10 pmWSW 8 10------ 91.9-----
2026-06-30 06:00 pmWSW 10 13------ 91.8-----
2026-06-30 05:50 pmWSW 10 11------ 92.1-----
2026-06-30 05:40 pmWSW 11 16------ 91.6-----
2026-06-30 05:30 pmWSW 14 18------ 91.6-----
2026-06-30 05:20 pm SW 12 15------ 90.9-----
2026-06-30 05:10 pm W 9 11------ 91.2-----
2026-06-30 05:00 pmWSW 9 11------ 91.4-----
2026-06-30 04:40 pmSSW 10 12------ 89.2-----
2026-06-30 04:30 pmSSW 10 11------ 89.6-----
2026-06-30 04:20 pmSSW 11 13------ 89.1-----
2026-06-30 04:10 pmSSW 11 13------ 89.2-----
2026-06-30 04:00 pm SW 8 9------ 90.0-----
2026-06-30 03:50 pm SW 9 14------ 89.2-----
2026-06-30 03:40 pm SW 10 12------ 88.3-----
2026-06-30 03:30 pm SW 12 14------ 88.3-----
2026-06-30 03:20 pm SW 11 13------ 88.5-----
2026-06-30 03:10 pm SW 12 16------ 89.6-----
2026-06-30 02:50 pmWSW 10 13------ 89.4-----
2026-06-30 02:40 pmWSW 11 14------ 89.2-----
2026-06-30 02:30 pm SW 10 12------ 88.9-----
2026-06-30 01:50 pm SW 13 15------ 87.8-----
2026-06-30 01:40 pm SW 11 13------ 87.4-----
2026-06-30 01:30 pm SW 10 12------ 87.1-----
2026-06-30 01:20 pm SW 13 14------ 86.5-----
2026-06-30 01:10 pm SW 8 10------ 86.9-----
2026-06-30 01:00 pm SW 11 13------ 86.7-----
2026-06-30 12:50 pm SW 13 16------ 86.5-----
2026-06-30 12:40 pmWSW 11 12------ 86.2-----
2026-06-30 12:30 pm SW 12 15------ 86.2-----
2026-06-30 12:20 pm SW 11 13------ 85.5-----
2026-06-30 12:10 pm SW 11 12------ 85.1-----
2026-06-30 12:00 pm SW 10 12------ 84.4-----
2026-06-30 11:50 am SW 11 12------ 84.6-----
2026-06-30 11:20 am W 12 15------ 84.0-----
2026-06-30 11:10 amWSW 11 14------ 84.2-----
2026-06-30 11:00 amWSW 11 15------ 84.2-----
2026-06-30 10:50 amWSW 11 14------ 84.6-----
2026-06-30 10:40 amWSW 9 12------ 84.2-----
2026-06-30 10:30 amWSW 10 13------ 83.5-----
2026-06-30 10:20 am SW 9 11------ 83.3-----
2026-06-30 10:10 am SW 13 15------ 83.1-----
2026-06-30 10:00 am SW 10 10------ 82.8-----
2026-06-30 09:50 am SW 10 12------ 82.6-----
2026-06-30 09:40 amSSW 12 13------ 82.8-----
2026-06-30 09:30 amSSW 9 11------ 82.4-----
2026-06-30 09:20 am SW 8 10------ 80.4-----
2026-06-30 09:10 amSSW 6 6------ 79.2-----
2026-06-30 09:00 am S 5 6------ 77.0-----
2026-06-30 07:20 am S 3 4------ 71.4-----
2026-06-30 07:10 am SE 3 4------ 70.0-----
2026-06-30 07:00 am SE 3 4------ 70.0-----
2026-06-30 06:50 amESE 2 2------ 70.3-----
2026-06-30 06:40 am E 1 2------ 69.3-----
2026-06-30 06:30 amESE 3 3------ 68.0-----
2026-06-30 06:10 am SE 5 5------ 67.3-----
2026-06-30 06:00 am SE 4 4------ 66.9-----
2026-06-30 05:50 amESE 4 5------ 66.6-----
2026-06-30 05:40 amESE 5 6------ 66.2-----
2026-06-30 05:30 am E 3 4------ 66.2-----
2026-06-30 05:20 am E 4 4------ 66.4-----
2026-06-30 05:10 am E 2 2------ 66.7-----
2026-06-30 05:00 am S 2 2------ 66.6-----
2026-06-30 04:50 am S 4 4------ 66.6-----
2026-06-30 04:10 amESE 5 5------ 65.7-----
2026-06-30 04:00 amESE 5 6------ 65.7-----
2026-06-30 03:40 am E 4 5------ 65.8-----
2026-06-30 03:30 am E 3 4------ 66.0-----
2026-06-30 03:20 amESE 5 5------ 65.8-----
2026-06-30 03:10 amESE 7 8------ 65.7-----
2026-06-30 03:00 amESE 9 9------ 65.5-----
2026-06-30 02:50 amESE 9 10------ 65.5-----
2026-06-30 02:40 amESE 10 10------ 65.3-----
2026-06-30 02:30 amESE 8 9------ 65.5-----
2026-06-30 02:20 amESE 7 8------ 65.8-----
2026-06-30 02:10 amESE 7 8------ 66.0-----
2026-06-30 02:00 amESE 5 6------ 65.8-----
2026-06-30 01:50 am S 3 4------ 65.7-----
2026-06-30 01:40 am SE 10 12------ 65.7-----
2026-06-30 01:30 amSSE 10 11------ 65.7-----
2026-06-30 01:20 am SE 10 11------ 65.5-----
2026-06-30 01:10 am SE 9 11------ 65.5-----
2026-06-30 01:00 am SE 9 10------ 65.7-----
2026-06-30 12:50 am SE 7 8------ 65.7-----
2026-06-30 12:40 am SE 8 8------ 65.7-----
2026-06-30 12:30 am SE 8 9------ 65.8-----
2026-06-30 12:20 am SE 6 7------ 65.7-----
2026-06-30 12:10 amESE 5 6------ 65.7-----
2026-06-29 11:50 pmESE 6 7------ 65.8-----
2026-06-29 11:40 pmESE 7 7------ 66.0-----
2026-06-29 11:30 pm E 4 4------ 66.0-----
2026-06-29 11:20 pm E 4 5------ 65.7-----
2026-06-29 11:10 pm E 4 4------ 65.5-----
2026-06-29 10:50 pm SE 11 13------ 65.7-----
2026-06-29 10:40 pm SE 12 13------ 65.8-----
2026-06-29 10:30 pm SE 14 16------ 66.0-----
2026-06-29 10:20 pm SE 13 15------ 66.0-----
2026-06-29 10:10 pmESE 12 15------ 65.8-----
2026-06-29 10:00 pmESE 15 16------ 66.2-----
2026-06-29 09:50 pmESE 16 18------ 66.2-----