####018005059#### FZUS81 KCLE 052223 ICELIO Great Lakes Ice Outlook National Weather Service Cleveland Ohio 523 PM EST Wed Mar 5 2025 Active watches...warnings...and advisories on the Great Lakes can be found at: http://www.weather.gov/greatlakes/ 5 Day Ice Discussion... Current ice concentration among the Great Lakes continues to oscillate in the 25-30 percent range, without much in the way of wholesale changes of the distribution of coverage over the past couple of days. Across Lake Superior, the ice is predominantly fast ice along the shorelines, with Whitefish Bay mostly ice covered. Down into the Straits of Mackinac, significant fast ice exists on the western side of the straits and into the straits themselves, with less coverage of the fast ice on the eastern side. The other significant fast ice remaining is in Saginaw Bay, portions of Green Bay, and the far eastern basin of Lake Erie near Buffalo. Changes in the ice have been seen over Lake Erie with a significant portion of the central basin now primarily ice free from the islands east to Cleveland. Southerly winds over the past 24 hours have also pushed the ice away from shore from Cleveland to Conneaut. Lake Erie ice coverage is down to around 65 percent from a peak of around 95 per. cent just a week and a half ago. A colder airmass back in place for the end of the week through the weekend could see slow ice growth occurring, but with the calendar having turned to March, sun angles and the increasing length of daylight is now working against additional significant ice formation even in colder airmasses. Milder weather for all of the Great Lakes is expected into the beginning of next week, prompting ice decay. 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 350/22 300/23 310/21 340/08 280/08 Mid Superior 360/29 310/23 320/24 340/15 320/10 East Superior 010/33 330/23 320/24 330/16 320/11 North Michigan 350/29 320/20 290/15 320/12 310/10 South Michigan 330/34 320/22 270/15 340/15 300/13 North Huron 320/30 310/33 290/23 310/19 310/17 Mid Huron 310/31 310/30 290/20 310/18 310/16 South Huron 310/30 310/29 290/19 320/17 310/16 West Erie 270/30 290/29 270/16 320/11 300/11 East Erie 240/29 260/29 250/21 290/11 290/16 Central Ontario 240/25 290/37 290/34 290/27 290/27 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 03/06 03/07 03/08 03/09 03/10 03/11 Duluth 14 37 14 33 19 39 26 50 28 48 30 46 Marquette 21 33 17 26 12 30 19 41 26 41 30 42 GreenBay 21 37 21 35 17 39 26 46 30 53 37 55 Milwaukee 23 39 28 37 23 42 30 48 33 55 41 57 Chicago 28 41 35 37 28 44 32 50 37 59 46 64 Muskegon 28 35 30 35 24 37 30 41 32 46 37 50 Alpena 21 32 23 35 19 35 23 37 28 42 32 46 Detroit 28 39 30 44 26 41 30 46 35 55 42 64 Toledo 30 39 30 41 26 41 30 44 33 55 42 66 Cleveland 30 37 32 41 28 37 30 41 33 50 41 62 Buffalo 32 33 26 37 24 32 24 37 28 41 35 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 5: LOCATION DATE NORMAL CURRENT ---------------------------------------- DULUTH, MN MAR 4 1705 1755 MARQUETTE, MI MAR 4 1480 1405 SAU_S_MAR, MI MAR 4 1193 1079 GREENBAY, WI MAR 4 983 920 MILWAUKEE, WI MAR 4 468 545 CHICAGO, IL MAR 4 352 406 MUSKEGON, MI MAR 4 320 345 ALPENA, MI MAR 4 885 818 DETROIT, MI MAR 4 349 430 TOLEDO, OH MAR 2 211 357 CLEVELAND, OH MAR 4 103 340 BUFFALO, NY MAR 4 424 430 NORMAL TEMPS FOR SELECTED LOCATIONS AROUND THE GREAT LAKES FOR Wed Mar 5 LOCATION HIGH LOW ---------------------------------------------- DULUTH,MN 32 14 MARQUETTE,MI 32 16 GREENBAY,WI 38 19 MILWAUKEE,WI 40 24 CHICAGO,IL 44 27 MUSKEGON,MI 40 25 ALPENA,MI 36 17 DETROIT,MI 42 26 TOLEDO,OH 44 26 CLEVELAND,OH 44 27 BUFFALO,NY 40 24 $$ Griffin