980  
FZUS81 KCLE 242130  
ICELIO  
 
GREAT LAKES ICE OUTLOOK  
NATIONAL WEATHER SERVICE CLEVELAND OHIO  
530 PM EDT WED MAR 24 2021  
 
ACTIVE WATCHES...WARNINGS...AND ADVISORIES ON THE GREAT LAKES CAN  
BE FOUND AT:  
 
HTTP://WWW.WEATHER.GOV/GREATLAKES/  
 
5 DAY ICE DISCUSSION...  
ICE COVERAGE REMAINS LIMITED AND PRIMARILY CONFINED TO THE PROTECTED BAYS  
OF THE UPPER GREAT LAKES, INCLUDING GREEN BAY, THE STRAITS OF MACKINAC,  
AND NORTHERN AND EASTERN PORTIONS OF GEORGIAN BAY. TEMPERATURES WILL  
REMAIN WARM ALLOWING THE REMAINING ICE TO DECAY. WINDS WILL BE ELEVATED  
ON THURSDAY NIGHT INTO FRIDAY WHICH WILL ALSO ASSIST WITH THE DECAY AND  
BREAK UP.  
 
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 330/17 060/18 060/19 050/08 110/07  
MID SUPERIOR 340/26 060/22 060/22 040/15 160/10  
EAST SUPERIOR 320/27 060/19 060/20 030/10 160/10  
NORTH MICHIGAN 09/20 020/24 020/24 350/12 100/08  
SOUTH MICHIGAN 260/13 020/28 010/31 320/11 130/12  
NORTH HURON 210/16 020/12 020/23 340/16 290/10  
MID HURON 210/16 040/16 350/25 330/21 140/08  
SOUTH HURON 210/15 030/17 330/26 320/22 130/07  
WEST ERIE 230/11 080/17 250/34 280/20 160/06  
EAST ERIE 210/14 070/11 230/34 240/32 250/08  
CENTRAL ONTARIO 190/15 130/10 240/28 240/32 280/13  
 
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 03/25 03/26 03/27 03/28 03/29 03/30  
DULUTH 25 31 25 38 28 42 27 43 31 55 38 48  
MARQUETTE 27 30 26 32 27 42 31 36 28 47 36 48  
GREENBAY 34 43 28 46 31 47 33 47 29 54 41 57  
MILWAUKEE 39 44 35 44 36 48 37 46 34 52 43 55  
CHICAGO 43 43 36 45 43 57 42 51 38 58 46 63  
MUSKEGON 40 48 35 42 33 48 36 43 31 49 39 54  
ALPENA 38 48 31 40 28 43 33 43 26 44 33 51  
DETROIT 48 65 44 54 37 59 43 52 32 54 39 62  
TOLEDO 47 64 43 53 38 61 44 52 32 55 39 63  
CLEVELAND 52 65 47 52 42 58 46 51 37 48 40 58  
BUFFALO 49 66 53 54 36 53 42 51 32 42 31 55  
 
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 WED MAR 24:  
 
LOCATION DATE NORMAL CURRENT  
----------------------------------------  
 
DULUTH, MN MAR 23 1505 869  
MARQUETTE, MI MAR 23 1746 1238  
SAU_S_MAR, MI MAR 23 1406 797  
GREENBAY, WI MAR 23 1223 747  
MILWAUKEE, WI MAR 23 607 307  
CHICAGO, IL MAR 23 404 187  
MUSKEGON, MI MAR 23 370 218  
ALPENA, MI MAR 23 1057 635  
DETROIT, MI MAR 23 299 129  
TOLEDO, OH MAR 23 294 70  
CLEVELAND, OH MAR 23 78 41  
BUFFALO, NY MAR 23 503 181  
 
 
NORMAL TEMPS FOR SELECTED LOCATIONS AROUND THE  
GREAT LAKES FOR WED MAR 24  
 
LOCATION HIGH LOW  
----------------------------------------------  
 
DULUTH,MN 40 22  
MARQUETTE,MI 39 22  
GREENBAY,WI 46 27  
MILWAUKEE,WI 47 29  
CHICAGO,IL 51 33  
MUSKEGON,MI 47 31  
ALPENA,MI 43 23  
DETROIT,MI 51 32  
TOLEDO,OH 52 32  
CLEVELAND,OH 51 33  
BUFFALO,NY 47 30  
 

 
 
THIS WILL BE THE LAST ICE FORECAST FOR THE 2020-2021 ICE SEASON. THE NEXT  
FREEZE-UP OUTLOOK WILL BE ISSUED DURING THE FIRST WEEK OF NOVEMBER, 2021.  
THE ICE FORECASTS WILL RESUME ONCE THE ICE BEGINS TO DEVELOP ACROSS THE  
GREAT LAKES NEXT WINTER.  
 
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