Breakup Watch 2018 (false colour) - April 30

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Satellite image of break-up in Temagami, 2018 

Image courtesy of NASA/NOAA                                                 Posted May 1, 2018

May 1, 2017 was break-up day. A year later, and there is no open water on the lakes. This great image from yesterday uses false colour to make the ice easier to define. The only open water (arrows) is moving water.

Will this be another 1996 when break-up came between May 12 and 15?

BACKGROUND: 30 years of break-up dates


Black open water or thin, clear ice
Dull/ dark blue thin ice with little or no snow cover
Bright turquoise thick ice, snow-covered ice or snow on unforested land  (e.g. clearcuts, farmland)

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