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Great Lakes Ice Coverage January 2019. The red dashed line marks the long-term average maximum ice cover of 533. Low ice cover also prevailed during the 2019-2020 season. Ice cover on the Great Lakes can fluctuate dramatically from year to year controlled by four patterns of climate variability. The ice cover on the Great Lakes begins each year along shallower coasts during late fall and early winter and typically peaks in late winter and early spring.
Outlook for February February 1-15. Ice coverage remained near 2 very close the climatological ice amount. Open water except 1-3 tenths of new and thin lake ice near Duluth near the end of the month. I am unaware of anyone in the media who could understand what a sine curve is. Surface Air Temperature Anomaly for the Great Lakes 15 December 2018 to 15 January 2019 Figure 4. Despite a recent surge Great Lakes ice coverage is well below average this winter.
The long-term trend in ice.
Ice coverage is currently at almost 38 per cent below the average of 53 per cent. Ice coverage remained near 2 very close the climatological ice amount. There was visibly less ice on the Great Lakes on January 21 2019 This years ice so far isnt anything incredible. Great Lakes Ice Cover Data - Ice Year 2019. Open water except 1-3 tenths of new and thin lake ice. Ice Year 2019 ArcGIS shapefiles - gis2019zip 192 MB Ice Year 2019 ASCII files - grid2019zip 39 MB Ice Year 2019 Graphic image files - jpg2019zip 79 MB Back to main Great Lakes Ice Cover Data page click on thumbnails for larger jpeg images Nov 15 2018.