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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
0200 GMT on 10/18/2026:
     

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): 50.9 °F
5-day plot - Dew Point Dew Point (DEWP): 34.2 °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
2026-10-18 0130--------- 51.1- 34.0---
2026-10-18 0100--------- 51.4- 33.3---
2026-10-18 0030--------- 52.0- 33.6---
2026-10-18 0000--------- 52.3- 32.9---
2026-10-17 2330--------- 52.7- 33.3---
2026-10-17 2300--------- 53.1- 33.3---
2026-10-17 2230--------- 53.4- 35.4---
2026-10-17 2200--------- 53.6- 33.6---
2026-10-17 2130--------- 53.4- 33.8---
2026-10-17 2100--------- 53.2- 34.3---
2026-10-17 2030--------- 52.9- 35.1---
2026-10-17 2000--------- 52.7- 36.3---
2026-10-17 1930--------- 52.5- 35.1---
2026-10-17 1900--------- 52.2- 34.3---
2026-10-17 1830--------- 51.3- 35.2---
2026-10-17 1800--------- 48.6- 37.0---
2026-10-17 1730--------- 47.5- 36.9---
2026-10-17 1700--------- 46.4- 36.5---
2026-10-17 1630--------- 44.8- 35.2---
2026-10-17 1600--------- 43.7- 33.8---
2026-10-17 1530--------- 42.6- 32.7---
2026-10-17 1500--------- 41.2- 32.4---
2026-10-17 1430--------- 39.9- 31.6---
2026-10-17 1400--------- 39.2- 30.9---
2026-10-17 1330--------- 39.0- 30.2---
2026-10-17 1300--------- 39.6- 29.8---
2026-10-17 1230--------- 39.4- 29.3---
2026-10-17 1200--------- 38.8- 25.9---
2026-10-17 1130--------- 38.3- 23.0---
2026-10-17 1100--------- 38.3- 23.7---
2026-10-17 1030--------- 37.9- 23.7---
2026-10-17 1000--------- 37.4- 24.1---
2026-10-17 0930--------- 37.0- 24.8---
2026-10-17 0900--------- 36.9- 24.6---
2026-10-17 0830--------- 36.7- 24.4---
2026-10-17 0800--------- 36.7- 23.9---
2026-10-17 0730--------- 36.9- 24.6---
2026-10-17 0700--------- 37.0- 24.6---
2026-10-17 0630--------- 37.4- 26.6---
2026-10-17 0600--------- 37.9- 27.0---
2026-10-17 0530--------- 38.5- 26.6---
2026-10-17 0500--------- 39.2- 27.0---
2026-10-17 0430--------- 39.6- 25.3---
2026-10-17 0400--------- 40.1- 26.2---
2026-10-17 0330--------- 40.5- 27.1---
2026-10-17 0300--------- 40.8- 26.6---