Ice Forecast
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Great Lakes Ice Outlook
National Weather Service Cleveland Ohio
506 PM EDT Wed Mar 12 2025

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

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

5 Day Ice Discussion...

Ice on the Great Lakes has become fairly limited over the last week and
should generally continue to decay through the next several days. The
greatest ice cover is on Lake Erie, with fast ice remaining from near
Ashtabula, OH points east. Otherwise, on Lake Huron Saginaw Bay remains
mainly ice-covered with shore ice along the eastern shore. On Lake
Michigan Green Bay remains ice-covered, with very limited shore ice along
the Michigan coast. The Straits of Mackinac remain ice-covered. On Lake
Superior ice persists along much of the southern shoreline, with Whitefish
Bay remaining significantly ice-covered as well. The open waters of Lakes
Superior, Michigan and Huron have very little ice.

Temperatures will be well-above normal through Saturday across the western
Great Lakes and Sunday across the eastern Great Lakes, leading to
continued decay of the ice through this weekend. A strong low pressure
will track from the central Plains on Friday to near western Lake Superior
on Saturday. Strong southerly winds (20-30kt sustained with higher gusts)
will likely develop across eastern Lake Superior, Lake Michigan, Lake
Huron, and Lake Erie late Friday into Saturday. These winds will turn
northwest from west to east Saturday into Sunday as a cold front passes,
with wind speeds diminishing behind the cold front.

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     Thu    Thu Night    Fri    Fri Night
  West Superior      250/07    090/16    100/16    090/14    090/14
   Mid Superior      260/10    120/12    130/17    130/16    130/20
  East Superior      200/15    130/11    140/17    120/19    130/21
 North Michigan      180/06    110/07    150/11    120/12    130/16
 South Michigan      050/07    110/11    150/17    140/20    150/21
    North Huron      140/10    150/09    140/14    140/16    150/19
      Mid Huron      140/09    120/07    150/13    150/16    150/19
    South Huron      120/10    100/08    150/15    140/18    150/22
      West Erie      060/11    080/10    080/10    140/13    160/18
      East Erie      050/14    010/06    070/07    140/11    160/17
Central Ontario      080/13    100/11    120/09    140/15    150/14

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   03/13   03/14   03/15   03/16   03/17   03/18
   Duluth  30  50  35  55  44  48  19  35  19  44  30  41
Marquette  28  50  30  53  44  53  28  33  23  39  28  41
 GreenBay  30  57  39  64  48  57  30  41  23  48  35  53
Milwaukee  32  48  41  62  48  55  32  41  26  50  39  57
  Chicago  37  50  44  66  53  64  35  44  30  55  44  64
 Muskegon  30  57  42  68  50  57  35  39  30  42  35  51
   Alpena  26  46  30  50  44  60  39  46  26  41  30  48
  Detroit  28  53  37  68  55  71  50  55  33  50  39  60
   Toledo  32  50  35  75  59  75  50  53  32  50  39  64
Cleveland  33  48  41  73  59  73  53  57  35  46  39  60
  Buffalo  32  53  35  68  51  66  53  64  35  41  32  53

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 Tue Mar 11:

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

   DULUTH,   MN  MAR   09 1748 1773
MARQUETTE,   MI  MAR   10 1539 1445
SAU_S_MAR,   MI  MAR   10 1243 1111
 GREENBAY,   WI  MAR   10 1003  888
MILWAUKEE,   WI  MAR   10  457  500
  CHICAGO,   IL  MAR   10  327  347
 MUSKEGON,   MI  MAR   10  315  314
   ALPENA,   MI  MAR   10  920  804
  DETROIT,   MI  MAR   10  336  388
   TOLEDO,   OH  MAR    2  211  357
CLEVELAND,   OH  MAR   10   79  294
  BUFFALO,   NY  MAR   10  427  397


NORMAL TEMPS FOR SELECTED LOCATIONS AROUND THE
GREAT LAKES FOR Tue Mar 11

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

    DULUTH,MN  34  17
 MARQUETTE,MI  34  18
  GREENBAY,WI  40  22
 MILWAUKEE,WI  42  26
   CHICAGO,IL  46  29
  MUSKEGON,MI  42  27
    ALPENA,MI  38  19
   DETROIT,MI  45  28
    TOLEDO,OH  46  28
 CLEVELAND,OH  46  29
   BUFFALO,NY  42  26

$$