Sample of Rainy Lake Levels

Rainy Lake Levels

Rainy Lake & Namakan Lake Data and Information, provided by the the Lake of the Woods Control Board of the IJC, gives important information on current and recent lake levels and flow management.  Most useful and user-friendly are the Rainy Lake Graph and Namakan Lake Graph, which are PDF documents linked below all the other information for each lake.

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Rainy Lake Property Owners Association

Rainy Lake Property Owners Association

Representing the residents and friends of Rainy Lake

After several conversations over the last few weeks with our local representative and consulting advisor to the water levels committee who have been advocating for all of us. We have some news worth sharing. It’s never easy when we are in situations like this. It’s disappointing to hear that the downstream effects is the primary reason for not opening waste gates sooner. This something we will be discussing with the committee as we are impacted by releases from above us on a regular basis even before the lakes above us are out side of the curve.

Below is a note from Abby Moore , hydro graph of the estimated outflow from a USGS gauge located near the Shorewood Dr. This gauges is one of our go to sites to confirm waste gate openings. The photo is of the down stream side of the canal gates.

waterdata.usgs.gov/monitoring-location/05129515/#parameterCode=00060&period=P7D&showMedian=false

Good afternoon,



Please see the below water level notice recently posted to the International Rainy Lake of the Woods Watershed Board’s Water level notice webpage:



Conditions in the basin, specifically at Rainy Lake and on the Rainy River have changed over the last few days. When the WLC had met on Friday, May 24, Rainy Lake levels had begun to stabilize and were still below the maximum summer rule curve level (337.75 m). Daily inflows to Rainy Lake had peaked on May 22 and had been steadily declining. Downstream, on the Rainy River, flows and levels were still rising due to the increased outflow from Rainy Lake and increasing flows from the Big and Little Fork Rivers. The level on the Rainy River was climbing outside of its normal range, and at Manitou Rapids the level had increased by 2 meters (6.5 feet) since May 20, over a period of 4 days. With this information, and a relatively dry forecast, the WLC recommended a more modest outflow increase from Rainy Lake on May 24, with no further increases over the weekend.



Over the weekend, some local rainfall occurred directly on Rainy Lake, causing the level to rise 4.5 cm (1.8 inches) and to reach the top of the maximum summer rule curve level on May 28. At the same time, both the Rainy River and Fork Rivers peaked, with flows and levels starting to decline as of Sunday, May 27. The WLC met again on Tuesday, May 28, and observed that inflows to Rainy Lake are continuing to decrease and are closer to matching current outflow. Taking into consideration the recently declining flows and levels downstream, as well as some precipitation in the 7-day forecast, the WLC has recommended that operators return Rainy Lake to its rule curves as quickly as possible, with additional gate openings up to two gates per day. Two gate openings at the International Falls/ Fort Frances dam are scheduled for May 29. The water level target for Rainy Lake is to reach the middle of the rule curve (25-75% range) by the middle of June.



Namakan Lake is beginning to stabilize, and there will be an additional outflow increase this week, so the lake level returns to its water level targets (25-75% range of its rule curve).



Sincerely,

Abby

Abby Moore, EIT

U.S. Engineering Advisor

IRLWWB- Water Levels Committee
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After several conversations over the last few weeks with our local representative and consulting advisor to  the water levels committee who have been advocating for all of us. We have some news worth sharing. Its never easy when we are in situations like this.  Its disappointing to hear that the downstream effects  is the primary reason for not opening waste gates sooner. This something we will be discussing with the committee as we are impacted by releases from above us on a regular basis even before the lakes above us are out side of the curve.  

Below is a note from Abby Moore ,  hydro graph of the estimated outflow from a USGS gauge located near the Shorewood Dr.  This gauges is one of our go to sites to confirm waste gate openings. The photo is of the down stream side of the canal gates. 

https://waterdata.usgs.gov/monitoring-location/05129515/#parameterCode=00060&period=P7D&showMedian=false

Good afternoon,

 

Please see the below water level notice recently posted to the International Rainy Lake of the Woods Watershed Board’s Water level notice webpage:

 

Conditions in the basin, specifically at Rainy Lake and on the Rainy River have changed over the last few days. When the WLC had met on Friday, May 24, Rainy Lake levels had begun to stabilize and were still below the maximum summer rule curve level (337.75 m). Daily inflows to Rainy Lake had peaked on May 22 and had been steadily declining. Downstream, on the Rainy River, flows and levels were still rising due to the increased outflow from Rainy Lake and increasing flows from the Big and Little Fork Rivers. The level on the Rainy River was climbing outside of its normal range, and at Manitou Rapids the level had increased by 2 meters (6.5 feet) since May 20, over a period of 4 days. With this information, and a relatively dry forecast, the WLC recommended a more modest outflow increase from Rainy Lake on May 24, with no further increases over the weekend.

 

Over the weekend, some local rainfall occurred directly on Rainy Lake, causing the level to rise 4.5 cm (1.8 inches) and to reach the top of the maximum summer rule curve level on May 28.  At the same time, both the Rainy River and Fork Rivers peaked, with flows and levels starting to decline as of Sunday, May 27.  The WLC met again on Tuesday, May 28, and observed that inflows to Rainy Lake are continuing to decrease and are closer to matching current outflow. Taking into consideration the recently declining flows and levels downstream, as well as some precipitation in the 7-day forecast, the WLC has recommended that operators return Rainy Lake to its rule curves as quickly as possible, with additional gate openings up to two gates per day. Two gate openings at the International Falls/ Fort Frances dam are scheduled for May 29. The water level target for Rainy Lake is to reach the middle of the rule curve (25-75% range) by the middle of June.

 

Namakan Lake is beginning to stabilize, and there will be an additional outflow increase this week, so the lake level returns to its water level targets (25-75% range of its rule curve).

 

Sincerely,

Abby

Abby Moore, EIT

U.S. Engineering Advisor

IRLWWB- Water Levels CommitteeImage attachment
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Current information from the National Weather Service

National Weather Service Duluth, MN, has the latest information regarding the Rainy River Basin. This page contains resources for river and lake levels across the Rainy River Basin, encompassing parts of northwest Ontario and northeast Minnesota. If flooding is forecast, briefings will be posted to this page.

National Weather Service Rainy River Basin