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)

    
                        
313
FZUS81 KCLE 212204
ICELIO

Great Lakes Ice Outlook
National Weather Service Cleveland Ohio
504 PM EST Fri Feb 21 2025

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

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

5 Day Ice Discussion...
Ice coverage has increased on the Great Lakes over the last two days. Ice
coverage over all of the Great Lakes is now up to 45 percent, which is
above normal for this time of year. Fast ice is present across much of the
western and far eastern basins in addition the immediate lakeshore of
Lake Erie with the rest of the lake mostly ice covered. With that being
said, there are still some cracks in the open waters of Lake Erie. Much of
southwestern Lake Huron is ice-covered with fast ice present in Saginaw
Bay. Additional ice stretches along the lakeshore from roughly Alpena, MI
northward to the Straits of Mackinac. The Straits of Mackinac remain ice-
covered and the majority of northern Lake Michigan is ice covered. Ice
coverage along the lakeshore of Lake Michigan has increased, although it
remains thin, and fast ice remains over Green Bay. Ice concentration has
increased in nearshore waters and bays on Lake Superior and fast ice
remains present along the immediate southern lakeshore and around the
Apostle Islands and on Chequamegon Bay, and Whitefish Bay.

Temperatures will remain below freezing tonight and through Saturday night
in most spots before a warming trend unfolds late this weekend into early
next week. High temperatures will remain above freezing Sunday through at
least early next week and low temperatures will likely be above normal
Sunday through mid to late week. The warmer temperatures will likely
result in slower ice growth and possibly slight reductions in ice
coverage. West to southwest winds 25 knots or less will preclude an ice
floe risk over the next several days.

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     Sat    Sat Night    Sun    Sun Night
  West Superior      250/25    250/17    270/12    240/13    260/16
   Mid Superior      260/25    280/15    170/11    170/15    260/13
  East Superior      250/23    270/18    300/10    190/17    240/13
 North Michigan      240/23    240/19    240/15    210/14    230/14
 South Michigan      240/23    240/22    250/18    210/16    230/18
    North Huron      240/19    250/19    270/14    210/13    190/15
      Mid Huron      230/20    240/22    250/16    210/12    190/15
    South Huron      220/17    230/19    240/13    200/12    190/16
      West Erie      230/15    230/18    230/13    210/12    200/14
      East Erie      230/23    230/25    240/18    200/14    200/17
Central Ontario      240/24    250/29    260/25    250/15    180/18

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   02/22   02/23   02/24   02/25   02/26   02/27
   Duluth  12  37  17  37  30  41  32  44  30  39  21  32
Marquette  12  32  21  37  28  39  30  37  26  37  19  26
 GreenBay  12  30  15  35  28  41  35  41  30  41  24  32
Milwaukee  14  32  23  39  30  44  35  44  32  44  28  35
  Chicago  15  35  24  42  35  46  37  46  33  46  32  37
 Muskegon  23  32  28  35  30  41  35  39  30  39  30  35
   Alpena  17  32  23  35  26  39  30  37  23  37  21  28
  Detroit  17  30  23  35  32  41  37  42  32  42  32  37
   Toledo  17  30  21  35  32  41  37  44  33  46  35  39
Cleveland  17  32  21  37  33  44  39  44  33  44  35  41
  Buffalo  17  32  23  33  28  41  37  41  32  39  30  37

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 Fri Feb 21:

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

   DULUTH,   MN  FEB   20 1559 1718
MARQUETTE,   MI  FEB   20 1324 1325
SAU_S_MAR,   MI  FEB   20 1059  995
 GREENBAY,   WI  JAN   31 1076  945
MILWAUKEE,   WI  FEB   20  454  559
  CHICAGO,   IL  FEB   20  361  468
 MUSKEGON,   MI  FEB   20  300  361
   ALPENA,   MI  FEB   20  780  793
  DETROIT,   MI  FEB   20  340  451
   TOLEDO,   OH  FEB   20  219  382
CLEVELAND,   OH  FEB   20  122  378
  BUFFALO,   NY  FEB   20  387  424


NORMAL TEMPS FOR SELECTED LOCATIONS AROUND THE
GREAT LAKES FOR Fri Feb 21

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

    DULUTH,MN  27   9
 MARQUETTE,MI  28  12
  GREENBAY,WI  33  15
 MILWAUKEE,WI  36  21
   CHICAGO,IL  39  22
  MUSKEGON,MI  35  21
    ALPENA,MI  32  13
   DETROIT,MI  38  22
    TOLEDO,OH  39  22
 CLEVELAND,OH  39  23
   BUFFALO,NY  36  20

$$



                

Freeze-Up/Break-Up Outlook (NWS CLE)

Typically only issued in Nov/Dec. Otherwise, below text will be blank. 

Canadian Daily Ice Forecast (click me)

National Ice Center 30 day ice outlook (click me)

Canadian 30-day ice outlook (click me)