Wednesday 13 May 2015

Will skies be clear Wednesday evening over southern Ontario?

Clear skies are easy to forecast for Wednesday night as a strong high pressure ridge builds over the Great Lakes region (illustrated below on a forecast chart for UTC 03:00 or EDT 23:00). A few low-level clouds may appear in some locations during the early evening, especially over southernmost regions, until the low-level moisture and cloudiness that is over southern Ontario during Wednesday afternoon moves south of the province overnight.


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