NDBC RCKM4 · Tide gauge · Great Lakes

Rock Cut, MI

46°15.9′N 084°11.5′W

Reading the gauge's spectra from NDBC…

At the shore, at this coastline's 1:10m scale 16 nmi SSE of Sault Ste. Marie Coastline: Natural Earth · places: GeoNames

A simulation of the sea at this gauge, built from its wave measurements. The wave heights, periods and directions are real; the exact position of each crest is not. How it is made

This page is drawn by script. The CSV and JSON downloads have every observation.

Every measurement · last 48 hours

What the gauge reports

Compare with other stations Query in SQL

Download CSV JSON