Great Lakes Water Levels

July 18th, 2013 at 10:51 pm by under Bill's Blog, News, Weather

Mackinac Bridge    Lake Michigan-Huron is up 1″ in the past month and up 2″ year-to-year.  The lake is 19″ below the century average, but a foot above the low water point for July in 1964.  The Grand River continues to run at above average flow.    Lake Superior is up 4″ in the last month and is also up 2″ in the past year.  Superior is 6″ below the long-term average and 15″ above the lowest July water level of 1926.  Several lines of storms crossed Lake Superior Thursday Night and that may add an inch to the lake in the next week.  lake Erie is up 4″ in the last month and up 8″ in the last year.  Erie is now 2″ above the average water level.  Lake Ontario is up a whopping 15″ since July 2012 and is now 6″ above the century average level. (picture from Jewelsie35 (Julie) at ReportIt.  See it full screen.)

Great Lakes News:  The water temperatures of Lake Michigan reached their peak on Thursday (maybe the peak of the summer Thurs. and Fri.) with 78 deg. at Holland, Grand Haven, Saugatuck and S. Haven.  The mid-lake buoy was at 77.  Researches are collecting Lake Michigan trash.     While the Federal government continues to chip away at NWS funding and really, really should spend money on making the American models (GFS) better, they have boatloads of grant money to hand out.  More metallic sheen on Lake Michigan beaches.  Finally, Cuyahoga River has record flood, beats 1913.

5 Responses to “Great Lakes Water Levels”

  1. Jack says:

    FIRST!!! Great News !!! Bill, You certainly Are a BUSY THREAD MAKER TODAY !!! Keep up the GREAT WORK…. ;-)

  2. Brian(Grandville) says:

    Second that Jack.

  3. Travis (Oakland County) says:

    Lk Michigan temps are already 6-8 degrees higher than their average annual maximum temp. And they usually don’t max out until mid August.

    Lots of fuel for storms.

    1. Bill Steffen says:

      Peak water temp. of Lake Michigan can occur in July: http://coastwatch.glerl.noaa.gov/statistic/avg-sst.php?lk=m&yr=0

      It’s been a pretty calm month and the surface water hasn’t mixed with cooler water underneath. Muskegon hasn’t had a bust to 30 mph since 7/1 and the last gust over 36 mph was 5/21. See if the first windy day stirs the water up and knocks temps. down a few degrees.

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