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Station SRLM4 - Spectacle Reef Light, MI Image indicating link to RSS feed of recent meteorological observations for station SRLM4

Owned and maintained by Great Lakes Environmental Research Laboratory
C-MAN Station
45.773 N 84.137 W (45°46'24" N 84°8'12" W)

Site elevation: 177 m above mean sea level
Anemometer height: 30 m above site elevation

Instruments are owned and maintained by the University of Colorado, Boulder.

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Search And Rescue (SAR) Data

Meteorological Observations from Nearby Stations and Ships Image indicating link to RSS feed of recent meteorological observations near station SRLM4

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yellow diamond Stations with recent data
red diamond Stations with no data in last 8 hours
(24 hours for tsunami stations)

Conditions at SRLM4 as of
1000 GMT on 08/15/2026:
     

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 - Air Temperature Air Temperature (ATMP): 64.0 °F
5-day plot - Dew Point Dew Point (DEWP): 59.2 °F
Previous observations
TIME
(GMT)		 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
2026-08-15 0930--------- 64.2- 59.2---
2026-08-15 0900--------- 64.6- 58.8---
2026-08-15 0830--------- 64.8- 58.6---
2026-08-15 0800--------- 64.9- 58.6---
2026-08-15 0730--------- 65.1- 58.5---
2026-08-15 0700--------- 65.1- 58.1---
2026-08-15 0630--------- 65.5- 58.3---
2026-08-15 0600--------- 65.7- 58.1---
2026-08-15 0530--------- 65.8- 57.2---
2026-08-15 0500--------- 65.8- 57.2---
2026-08-15 0430--------- 66.0- 57.0---
2026-08-15 0400--------- 66.4- 57.0---
2026-08-15 0330--------- 67.3- 55.4---
2026-08-15 0300--------- 68.5- 55.0---
2026-08-15 0230--------- 70.0- 55.6---
2026-08-15 0200--------- 71.1- 59.7---
2026-08-15 0130--------- 72.0- 58.5---
2026-08-15 0100--------- 73.0- 53.4---
2026-08-15 0030--------- 72.5- 56.8---
2026-08-15 0000--------- 72.1- 59.9---
2026-08-14 2330--------- 72.3- 59.5---
2026-08-14 2300--------- 72.1- 59.0---
2026-08-14 2230--------- 71.8- 59.7---
2026-08-14 2200--------- 71.6- 59.7---
2026-08-14 2130--------- 71.2- 59.7---
2026-08-14 2100--------- 70.9- 59.4---
2026-08-14 2030--------- 70.7- 59.4---
2026-08-14 2000--------- 70.0- 59.4---
2026-08-14 1930--------- 69.3- 59.2---
2026-08-14 1900--------- 70.0- 59.2---
2026-08-14 1830--------- 69.4- 59.4---
2026-08-14 1800--------- 68.5- 59.4---
2026-08-14 1730--------- 67.8- 59.5---
2026-08-14 1700--------- 66.7- 59.5---
2026-08-14 1630--------- 66.0- 59.5---
2026-08-14 1600--------- 65.3- 59.4---
2026-08-14 1530--------- 65.1- 59.4---
2026-08-14 1500--------- 66.2- 59.4---
2026-08-14 1430--------- 67.1- 59.4---
2026-08-14 1400--------- 64.9- 58.5---
2026-08-14 1330--------- 63.1- 58.5---
2026-08-14 1300--------- 62.2- 58.1---
2026-08-14 1230--------- 62.1- 58.5---
2026-08-14 1200--------- 62.1- 58.1---
2026-08-14 1130--------- 63.0- 58.6---
2026-08-14 1100--------- 63.0- 58.3---