376  
FZUS81 KCLE 142202  
ICELIO  
 
GREAT LAKES ICE OUTLOOK  
NATIONAL WEATHER SERVICE CLEVELAND OHIO  
502 PM EST FRI FEB 14 2025  
 
ACTIVE WATCHES...WARNINGS...AND ADVISORIES ON THE GREAT LAKES CAN  
BE FOUND AT:  
 
HTTP://WWW.WEATHER.GOV/GREATLAKES/  
 
5 DAY ICE DISCUSSION...  
 
OVERALL ICE COVERAGE ACROSS LAKES SUPERIOR, MICHIGAN, AND HURON CONTINUES  
TO BE SLIGHTLY BELOW NORMAL FOR MID FEBRUARY. ICE COVERAGE ON LAKE ERIE CONTINUES  
TO BE WELL ABOVE NORMAL AS ICE COVERAGE IS AROUND 90 TO 95%. THE LATEST SAR  
IMAGERY REVEALS THE REMAINING 5 TO 10% OF "ICE-FREE" AREA FOR LAKE ERIE  
RESIDING ON THE NORTHERN SHORES OF ONTARIO TOWARDS THE ISLANDS, RESULTING  
FROM STRONG WESTERLY WINDS THURSDAY EVENING. A MIX OF MEDIUM TO THICK  
LAKE ICE IS PRESENT ACROSS THE STRAITS OF MACKINAC, GREEN BAY, SAGINAW  
BAY, AND MOST RECENTLY, THE EASTERN SHORELINE OF LAKE ERIE. NEW TO THIN  
LAKE CONTINUES TO APPEAR AND INCREASE IN COVERAGE ALONG THE SHORELINES OF  
ALL OTHER LAKES. CURRENT ICE COVERAGE ACROSS ALL GREAT LAKES IS ROUGHLY  
33 PERCENT.  
 
THE ENTIRE GREAT LAKES REGION IS EXPECTED TO REMAIN BELOW FREEZING THROUGH  
THE WEEKEND AND INTO EARLY NEXT WEEK. MODEST NORTH TO NORTHWEST WINDS OF  
20 TO 30 KNOTS WILL RETURN ACROSS MUCH OF THE GREAT LAKES BEHIND A  
DEEPENING LOW PRESSURE SYSTEM SUNDAY INTO MONDAY WHICH COULD CONTRIBUTE TO  
SIGNIFICANT SHIFTS IN THE ICE. ARCTIC AIR WILL ARRIVE BEHIND THIS SYSTEM  
WHICH COULD LEAD TO AREAS OF MODERATE TO RAPID ICE GROWTH, PARTICULARLY  
ACROSS THE UPPER GREAT LAKES.  
 
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 040/27 040/27 030/25 340/17 330/19  
MID SUPERIOR 050/24 040/25 040/24 010/21 350/21  
EAST SUPERIOR 220/15 060/21 060/21 020/23 360/19  
NORTH MICHIGAN 170/17 050/20 040/22 330/21 300/19  
SOUTH MICHIGAN 150/20 040/18 330/28 320/28 300/24  
NORTH HURON 200/17 070/22 050/27 010/24 310/21  
MID HURON 140/16 080/17 040/27 360/24 300/23  
SOUTH HURON 130/17 120/16 030/23 320/25 290/23  
WEST ERIE 140/11 160/12 300/24 290/25 270/22  
EAST ERIE 070/10 080/12 060/14 270/30 260/29  
CENTRAL ONTARIO 120/19 090/20 060/29 290/33 280/38  
 
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 02/15 02/16 02/17 02/18 02/19 02/20  
DULUTH 14 23 3 12 -1 5 -1 8 -8 12 -3 17  
MARQUETTE 17 26 17 21 3 8 1 12 3 17 8 21  
GREENBAY 21 30 17 24 -6 8 -1 12 -8 14 -4 19  
MILWAUKEE 23 32 23 26 -3 6 -6 10 1 12 3 17  
CHICAGO 24 35 26 28 1 8 -1 12 5 17 5 17  
MUSKEGON 23 32 24 28 10 14 8 17 10 21 12 21  
ALPENA 17 28 19 23 5 14 1 14 1 19 5 21  
DETROIT 21 35 28 32 14 19 3 17 3 21 6 23  
TOLEDO 21 37 30 32 14 15 3 15 5 19 6 21  
CLEVELAND 26 39 35 39 17 19 6 15 8 19 12 21  
BUFFALO 19 35 32 37 14 19 5 14 5 17 8 21  
 
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 14:  
 
LOCATION DATE NORMAL CURRENT  
----------------------------------------  
 
DULUTH, MN FEB 13 1447 1512  
MARQUETTE, MI FEB 13 1213 1155  
SAU_S_MAR, MI FEB 13 963 851  
GREENBAY, WI FEB 13 826 765  
MILWAUKEE, WI FEB 13 423 422  
CHICAGO, IL FEB 13 342 342  
MUSKEGON, MI FEB 13 270 272  
ALPENA, MI FEB 13 702 670  
DETROIT, MI FEB 13 315 347  
TOLEDO, OH FEB 13 208 298  
CLEVELAND, OH FEB 13 118 294  
BUFFALO, NY FEB 13 349 335  
 
 
NORMAL TEMPS FOR SELECTED LOCATIONS AROUND THE  
GREAT LAKES FOR FRI FEB 14  
 
LOCATION HIGH LOW  
----------------------------------------------  
 
DULUTH,MN 25 7  
MARQUETTE,MI 26 10  
GREENBAY,WI 13 -1  
MILWAUKEE,WI 34 20  
CHICAGO,IL 36 20  
MUSKEGON,MI 33 19  
ALPENA,MI 30 11  
DETROIT,MI 35 20  
TOLEDO,OH 36 20  
CLEVELAND,OH 37 22  
BUFFALO,NY 34 19  
 

 
 
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