Station List

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.

Latest NWS Marine Forecast

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
1100 GMT on 04/11/2026:
     

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): 30.7 °F
5-day plot - Dew Point Dew Point (DEWP): 27.3 °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
2026-04-11 1030--------- 30.7- 27.0---
2026-04-11 1000--------- 30.7- 27.1---
2026-04-11 0930--------- 30.4- 26.6---
2026-04-11 0900--------- 30.2- 26.8---
2026-04-11 0830--------- 30.2- 25.9---
2026-04-11 0800--------- 31.1- 26.4---
2026-04-11 0730--------- 31.5- 26.2---
2026-04-11 0700--------- 31.5- 25.2---
2026-04-11 0630--------- 31.1- 25.7---
2026-04-11 0600--------- 30.9- 26.8---
2026-04-11 0530--------- 30.7- 26.6---
2026-04-11 0500--------- 30.9- 26.1---
2026-04-11 0430--------- 31.6- 25.7---
2026-04-11 0400--------- 32.0- 25.7---
2026-04-11 0330--------- 32.2- 25.5---
2026-04-11 0300--------- 32.5- 25.2---
2026-04-11 0230--------- 33.3- 25.3---
2026-04-11 0200--------- 34.0- 25.0---
2026-04-11 0130--------- 34.5- 24.8---
2026-04-11 0100--------- 35.2- 23.7---
2026-04-11 0030--------- 35.1- 25.0---
2026-04-11 0000--------- 35.2- 25.5---
2026-04-10 2330--------- 36.0- 24.6---
2026-04-10 2300--------- 35.8- 24.8---
2026-04-10 2230--------- 35.2- 26.6---
2026-04-10 2200--------- 34.7- 27.7---
2026-04-10 2130--------- 35.4- 26.6---
2026-04-10 2100--------- 35.8- 27.0---
2026-04-10 2030--------- 34.9- 29.1---
2026-04-10 2000--------- 34.9- 30.2---
2026-04-10 1930--------- 35.6- 30.2---
2026-04-10 1900--------- 36.0- 30.0---
2026-04-10 1830--------- 34.5- 31.5---
2026-04-10 1800--------- 34.0- 31.5---
2026-04-10 1730--------- 33.6- 31.5---
2026-04-10 1700--------- 33.1- 31.3---
2026-04-10 1630--------- 33.3- 31.3---
2026-04-10 1600--------- 32.9- 31.3---
2026-04-10 1530--------- 32.5- 30.9---
2026-04-10 1500--------- 32.4- 30.7---
2026-04-10 1430--------- 32.4- 30.6---
2026-04-10 1400--------- 32.2- 30.6---
2026-04-10 1330--------- 32.2- 30.4---
2026-04-10 1300--------- 32.5- 30.6---
2026-04-10 1230--------- 32.5- 30.6---
2026-04-10 1200--------- 32.4- 30.2---
2026-04-10 1130--------- 32.7- 29.8---
2026-04-10 1100--------- 33.6- 29.7---