Search User Login Menu
Tools
Close
Close

News Minnesota

News/Minnesota
Lake Superior News Minnesota Region. Duluth, Cook County, Grand Marais, Lake County, St. Louis County, Carlton County, Itasca County, Koochiching County, Lake of the Woods County, Minnesota.

Latest News Minnesota

St. Marys Rapids flows and water levels will increase in August
David Thompson

St. Marys Rapids flows and water levels will increase in August

THUNDER BAY, SAULT STE MARIE, ONTARIO DULUTH, MINNESOTA  ~~~~  August  4, 2022 (LSNews)  Anglers and other users of the St. Marys Rapids, please be advised that the St. Marys Rapids flows and water levels will increase in August. As of Friday, August 5, the St. Marys Rapids flow is expected to be approximately 923 cubic meters per second (m3/s) (32.6 thousand cubic feet per second (tcfs)). At these flows, some flooding of low-lying areas including recreation trails on Whitefish Island is expected, and everyone is encouraged to use extreme caution.

Outflows from Lake Superior and into Lake Michigan-Huron continue to be set in consideration of water levels upstream and downstream. The Board expects the total outflow to be 2,660 m3/s (93.9 tcfs) in August, which is as prescribed by Lake Superior Regulation Plan 2012. Compensating Works Gates #13 and #14 will be raised to a setting of 97 cm (39 in) open on Friday, August 5. Gate #16 will be closed now that sea lamprey trapping has been completed for the season.  There will be no change to the setting of Gate #1, which supplies a flow of about 15 m3/s to the channel north of the Fishery Remedial Dike. Note that Gates #9 through #12 were adjusted on July 12 instead of July 6 as originally scheduled and posted in the July 1 news release. Gates #7 and #8 were raised as scheduled on July 6.

Water supplies were near average in the Lake Superior basin in July. Lake Superior rose 4 cm (1.6 in) last month, which is near the seasonal long-term average rise in July of 5 cm (2 in). Water supplies were drier than average in the Lake Michigan-Huron basin in July. As a result, Lake Michigan-Huron declined 2 cm (0.8 in) last month, while on average the lake remains stable in July.

At the beginning of August, the lake-wide water level of Lake Superior is 10 cm (3.9 in) above the seasonal long-term average (1918-2021) and 7 cm (2.8 in) above the level of a year ago. At beginning of August, the lake-wide level of Lake Michigan-Huron is 21 cm (8.3 in) above average, 22 cm (8.7 in) below the level of a year ago.

Depending on the weather and water supply conditions during the next month, Lake Superior may rise by as much as 8 cm (3.1 in) in August, or may begin its seasonal decline. Lake Michigan-Huron water levels may rise slightly in August or may decline by as much as 10 cm (3.9 in).

The International Lake Superior Board of Control is responsible for managing the control works on the St. Marys River and regulating the outflow from Lake Superior into Lake Michigan-Huron. Under any outflow regulation plan, the ability to regulate the flow through the St. Marys River does not mean that full control of the water levels of Lake Superior and Lake Michigan-Huron is possible. This is because the major factors affecting water supply to the Great Lakes (i.e. precipitation, evaporation, and runoff) cannot be controlled, and are difficult to accurately predict. Outflow management cannot eliminate the risk of extreme water levels from occurring during periods of severe weather and water supply conditions. 

#LSN_Shipping  #LSN_MNNews #LSN_MiNews #LSN_CircleTour

Below Please Rate and Share this story 
To help us learn what is important to you
 

Internation Joint Commission The International Lake Superior Board of Control is responsible for regulating the outflow of Lake Superior and managing the control works on the St. Marys River. Under any regulation plan, the ability to regulate the outflow from Lake Superior does not mean that full control of lake levels is possible. This is because the major factors affecting water supply to the Great Lakes, precipitation, evaporation, and runoff cannot be controlled, and are difficult to accurately predict. Outflow management cannot eliminate the risk of extreme water levels from occurring during periods of severe weather and water supply conditions. Additional information can be found at the Board’s homepage: https://ijc.org/en/lsbc or on Facebook at: https://www.facebook.com/InternationalLakeSuperiorBoardOfControl

 

Print
Rate this article:
5.0
2Upvote 0Downvote

Minnesota Calendar

«September 2022»
SunMonTueWedThuFriSat
28293031123
45678910
11121314151617
18192021222324
252627282930
  • 3rd Annual Golf for the Good
    3rd Annual Golf for the Good

    3rd Annual Golf for the Good

    COOK COUNTY, MINNESOTA  ~~~~~~ September 7, 2022  (LSNews)     Superior National at Lutsen is once again partnering with the North Shore Health Care Foundation to bring you the 3rd Annual Golf for the Good – NSHCF Weekend on Friday, Sept. 30 and Saturday, Oct. 1. It’s coming up fast and we need you!

    #LSN_Health  #LSN_CookCounty 

    Read more
1
  • 3rd Annual Golf for the Good
    3rd Annual Golf for the Good

    3rd Annual Golf for the Good

    COOK COUNTY, MINNESOTA  ~~~~~~ September 7, 2022  (LSNews)     Superior National at Lutsen is once again partnering with the North Shore Health Care Foundation to bring you the 3rd Annual Golf for the Good – NSHCF Weekend on Friday, Sept. 30 and Saturday, Oct. 1. It’s coming up fast and we need you!

    #LSN_Health  #LSN_CookCounty 

    Read more
  • Applications Due Oct 1 for Last Round of 2022
    Applications Due Oct 1 for Last Round of 2022

    Applications Due Oct 1 for Last Round of 2022

    COOK COUNTY, MINNESOTA  ~~~~~sEPEMBER 16, 2022 (LSNews)  The North Shore Health Care Foundation (NSHCF) will be awarding its final round of 2022 grant funds this fall. Applications for Foundation funding for projects that work toward a healthy community for all are due Saturday, Oct. 1 by 4 pm.

    The Foundation works to address gaps in health care and community health-related needs in Cook County. A total of $34,000 has been budgeted for in the 2022 NSHCF budget to help fund community organizations and programs that contribute to equitable health care and healthy living in Cook County this year, through the semi-annual community grant program.

    #LSN_Health   #LSN_CookCounty   %LSN_MNNews 

    Read more
2345678

Upcoming events iCalendar export

Banners

Follow LSN on Twitter

Latest Minnesota News

Banners

Latest News

No content

A problem occurred while loading content.

Previous Next
Back To Top