285  
FZUS81 KCLE 232156  
ICELIO  
 
GREAT LAKES ICE OUTLOOK  
NATIONAL WEATHER SERVICE CLEVELAND OHIO  
456 PM EST FRI FEB 23 2018  
 
ACTIVE WATCHES...WARNINGS...AND ADVISORIES ON THE GREAT LAKES CAN  
BE FOUND AT...HTTP://WWW.CRH.NOAA.GOV/GREATLAKES/?C=HAZ&L=GL&P=A  
 
5 DAY ICE DISCUSSION...  
LARGE AREA OF HIGH PRESSURE OVER THE PLAINS STATES WILL TRACK EAST ACROSS  
THE LAKES THIS WEEKEND, THEN MOVE INTO NOVA SCOTIA SUNDAY. THIS WILL ALLOW  
AN INTENSE LOW TO TRACK NE ACROSS THE CENTRAL LAKES ON SUNDAY. THE LOW  
WILL TRACK ACROSS JAMES BAY SUNDAY NIGHT WHILE HIGH PRESSURE TRACKS EAST  
ACROSS THE UPPER OHIO VALLEY. THE HIGH WILL TRACK EAST AND MOVE OFF THE  
MID ATLANTIC COAST TUESDAY NIGHT. LOW PRESSURE WILL TRACK INTO THE LOWER  
LAKES LATE WEDNESDAY.  
 
SOUTHWEST WINDS WILL INCREASE TO NEAR GALE FORCE ACROSS THE LAKES  
SATURDAY NIGHT INTO SUNDAY AS THE INTENSE LOW TRACKS ACROSS THE LAKES.  
THE STRONG WINDS WILL LIKELY CAUSE THE ICE TO SHIFT AND MAY CAUSE TRACKS  
TO CLOSE. WINDS GRADUALLY DIMINISH ON MONDAY AS THE LOW TRACKS INTO CANADA  
AND HIGH PRESSURE MOVES ACROSS THE UPPER OHIO VALLEY.  
 
ICE DETERIORATION IS EXPECTED TO CONTINUE THROUGH THE ENTIRE FORECAST  
PERIOD AS TEMPERATURES WILL REMAIN WELL ABOVE NORMAL.  
 
THE GREAT LAKES ICE ANALYSIS PRODUCTS CAN BE FOUND AT:  
 
HTTP://WWW.NATICE.NOAA.GOV/PRODUCTS/GREAT_LAKES.HTML  
 
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 250/07 080/19 250/26 260/30 240/13  
MID SUPERIOR 270/07 110/16 100/25 260/31 250/14  
EAST SUPERIOR 290/08 120/22 110/32 260/32 260/18  
NORTH MICHIGAN 320/08 100/26 240/34 240/30 250/14  
SOUTH MICHIGAN 090/12 120/27 250/31 240/24 260/11  
NORTH HURON 300/18 100/19 110/30 240/23 270/16  
MID HURON 330/15 100/14 240/29 240/28 250/12  
SOUTH HURON 290/10 110/13 130/26 240/23 220/09  
WEST ERIE 060/09 080/17 250/23 250/16 240/09  
EAST ERIE 250/09 060/15 240/26 240/26 250/18  
CENTRAL ONTARIO 280/17 080/13 160/23 240/24 260/20  
 
A FULL GRAPHICAL FORECAST OF WIND ON THE GREAT LAKES CAN BE FOUND AT:  
HTTP://WWW.CRH.NOAA.GOV.GREATLAKES/?C=MAP&L=GL&P=A&M=WS  
 
TEMPERATURE FORECASTS FOR SELECTED CITIES  
 
LOCATION 02/24 02/25 02/26 02/27 02/28 03/01  
DULUTH 9 29 23 32 15 34 18 35 17 34 19 33  
MARQUETTE 20 33 27 37 23 37 26 38 25 36 25 34  
GREENBAY 22 36 32 39 24 41 28 45 29 41 29 39  
MILWAUKEE 29 39 32 42 28 45 33 49 35 46 33 42  
CHICAGO 33 41 34 44 30 47 36 53 41 51 38 45  
MUSKEGON 30 42 35 41 30 42 31 47 34 47 33 42  
ALPENA 24 35 29 43 28 40 25 43 28 40 26 38  
DETROIT 35 41 36 51 32 46 33 51 38 50 38 46  
TOLEDO 35 40 37 52 31 47 32 53 37 52 37 47  
CLEVELAND 35 43 41 56 34 45 33 50 37 50 39 47  
BUFFALO 34 42 38 55 31 43 29 44 30 44 31 42  
 
A FULL GRAPHICAL FORECAST OF THE GREAT LAKES FORECAST TEMPERATURES  
CAN BE FOUND AT HTTP://WWW.CRH.NOAA.GOV/GREATLAKES/?C=MAP&L=GL&P=A&M=TE  
 
FREEZING DEGREE DAY ACCUMULATIONS AT SELECTED STATIONS  
COMPARED TO NORMAL CALCULATED ON FRI FEB 23:  
 
LOCATION DATE NORMAL CURRENT  
----------------------------------------  
 
DULUTH, MN FEB 22 1725 2059  
MARQUETTE, MI FEB 22 1448 1689  
SAU_S_MAR, MI FEB 22 1165 1321  
GREENBAY, WI FEB 22 1107 1138  
MILWAUKEE, WI FEB 22 627 648  
CHICAGO, IL FEB 22 501 576  
MUSKEGON, MI FEB 22 390 495  
ALPENA, MI FEB 22 886 1041  
DETROIT, MI FEB 22 375 530  
TOLEDO, OH FEB 22 381 510  
CLEVELAND, OH FEB 22 196 268  
BUFFALO, NY FEB 22 493 733  
 
 
NORMAL TEMPS FOR SELECTED LOCATIONS AROUND THE  
GREAT LAKES FOR FRI FEB 23  
 
LOCATION HIGH LOW  
----------------------------------------------  
 
DULUTH,MN 28 10  
MARQUETTE,MI 29 13  
GREENBAY,WI 28 10  
MILWAUKEE,WI 37 22  
CHICAGO,IL 40 23  
MUSKEGON,MI 36 22  
ALPENA,MI 28 10  
DETROIT,MI 39 23  
TOLEDO,OH 40 23  
CLEVELAND,OH 40 24  
BUFFALO,NY 37 21  
 

 
 
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