Sunday, April 08, 2007

Northwest River Levels

I've noticed that the NL government gauge is not being updated at the moment. It has been this way for a while and I'm not sure when it will get fixed. However, the environment Canada gauge is still working fine and can be found at

Unfortunately this data is given as the head of the gauge (m), as opposed to the NL graph, which is converted to CMS. A few years ago I monitored the websites and came up with a fairly accurate conversion for the environment Canada data. This allows us to judge the water levels using numbers we're familiar with for the Northwest River. Listed below are a few touchstone levels for each gauge. I hope this helps you out.

Environment Canada (m) = NL Government (CMS) River Level
1.1 m = 10.7 cms Low
1.3 m = 15.8 cms Low
1.44 m = 20.1 cms Medium
1.6 m = 25.8 cms Medium
1.7 m = 29.8 cms High
1.8 m = 34.1 cms High
1.9 m = 38.8 cms High
2.0 m = 43.7 cms High
2.5 m = 73.3 cms Really High
3.0 m = 110.8 cms Really High

My conversion is an estimate, but is very accurate between 2 cms and 50 cms. Above 50 cms it becomes less accurate. Really though, if you're on Northwest River above 50 cms you know what you're about and you don't need a lousy gauge.

I hope this helps you out a bit. The Northwest is at about 20 cms today. In otherwords it is perfect. Judging by the weather forecast it will stay in a good window for a few days. So, get out there and paddle.

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