Great Lakes Ice Forecasts - Text

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Great Lakes Ice Outlook (CLEICELIO)

Issued Monday Wednesday Friday (product only valid when ice is present on the Great Lakes)


                            
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FZUS81 KCLE 202156
ICELIO

Great Lakes Ice Outlook
National Weather Service Cleveland Ohio
456 PM EST Mon Jan 20 2025

Active watches...warnings...and advisories on the Great Lakes can
be found at:

http://www.weather.gov/greatlakes/

5 Day Ice Discussion...

Ice cover on Lakes Superior, Huron, and Michigan remains confined to bays
and relatively-shallow waters along/very near each respective lakeshore
(e.g. Duluth Harbor, Straits of Mackinac, Green Bay, Little Bay De Noc,
Big Bay De Noc, and Saginaw Bay). Lake St. Clair is completely ice-covered.
As for Lake Erie, the western basin is ice-covered, while ice cover is
primarily confined to waters along and within five nautical miles of the
shoreline in the central and eastern basins. Primarily slow to moderate
ice formation is expected during the next five days on the Upper Great
Lakes and Lake Erie as surface air temperatures over and near the lakes
remain below-normal through this Wednesday and then moderate to near-normal
by this Thursday and Friday. However, surface winds are expected to
average 10 to 25 knots over the lakes through this Friday. The bulk of ice
formation is expected to be confined to bays and inlets, especially those
that are sheltered, and shallower waters within several miles of the
shoreline of each lake.

The Great Lakes ice analysis products can be found at:

http://usicecenter.gov/Products/GreatLakesHome

and

http://www.glerl.noaa.gov/data/ice/#currentconditions

     MAX WIND (KNOTS) AT EACH SITE FOR THE 12 HOUR FCST PERIOD

       Location     Tonight     Tue    Tue Night    Wed    Wed Night
  West Superior      280/21    220/26    220/25    330/15    320/11
   Mid Superior      310/19    230/25    220/24    330/18    330/14
  East Superior      310/19    260/24    230/22    330/16    340/14
 North Michigan      300/20    250/20    220/23    240/17    310/11
 South Michigan      280/22    280/19    200/30    220/26    280/15
    North Huron      260/20    260/20    200/27    200/26    260/14
      Mid Huron      260/22    250/21    200/23    200/24    240/16
    South Huron      260/22    260/20    190/24    190/26    220/17
      West Erie      240/19    260/20    190/17    190/16    210/15
      East Erie      260/24    240/20    280/19    220/23    220/19
Central Ontario      250/27    250/24    250/22    210/20    220/20

A full graphical forecast of wind on the Great Lakes can be found at:
http://www.weather.gov/greatlakes/

        Temperature  Forecasts for Selected Cities

 Location   01/21   01/22   01/23   01/24   01/25   01/26
   Duluth  -1  -1  -1  17   1  15   1  21  15  24  10  23
Marquette  -1   3  -3  17  10  21   8  23  14  28  14  24
 GreenBay  -1   1  -4  21   8  23   5  24  17  30  14  28
Milwaukee  -1   1  -1  23  17  26  10  26  19  33  19  30
  Chicago  -4   3   1  24  19  28  14  28  23  35  23  32
 Muskegon   3  10   6  26  19  26  17  28  23  32  23  30
   Alpena  -1   8  -1  14  10  23  10  24  15  30  19  26
  Detroit   3   8  -1  17  14  24  14  26  19  32  24  32
   Toledo   3   6  -6  17  14  24  15  26  19  33  26  32
Cleveland   3  12  -8  17  12  28  17  26  19  35  26  33
  Buffalo   6  12  -1  14  10  26  17  28  19  32  26  32

A full graphical forecast of the Great Lakes forecast temperatures
can be found at http://www.weather.gov/greatlakes/

FREEZING DEGREE DAY ACCUMULATIONS AT SELECTED STATIONS
COMPARED TO NORMAL CALCULATED ON Mon Jan 20:

LOCATION           DATE   NORMAL CURRENT
----------------------------------------

   DULUTH,   MN  JAN   19  944  908
MARQUETTE,   MI  JAN   19  756  638
SAU_S_MAR,   MI  JAN   19  554  421
 GREENBAY,   WI  JAN   19  488  425
MILWAUKEE,   WI  JAN   19  227  198
  CHICAGO,   IL  JAN   19  182  194
 MUSKEGON,   MI  JAN   19  124  109
   ALPENA,   MI  JAN   19  382  298
  DETROIT,   MI  JAN   19  156  158
   TOLEDO,   OH  JAN   19   98  148
CLEVELAND,   OH  JAN   19   52  150
  BUFFALO,   NY  JAN   19  153  132


NORMAL TEMPS FOR SELECTED LOCATIONS AROUND THE
GREAT LAKES FOR Mon Jan 20:

LOCATION     HIGH LOW
----------------------------------------------

    DULUTH,MN  19   0
 MARQUETTE,MI  22   7
 GREEN BAY,WI  25   8
 MILWAUKEE,WI  30  17
   CHICAGO,IL  31  14
  MUSKEGON,MI  28  14
    ALPENA,MI  26   8
   DETROIT,MI  31  17
    TOLEDO,OH  31  16
 CLEVELAND,OH  33  19
   BUFFALO,NY  31  17

$$