Friday, 8 May 2015

Will skies be clear over southern Ontario Friday night?


It looks like lots of high-level moisture will be over southern Ontario overnight (illustrated below) and so skies will be partly clear with scattered mid and high-level clouds resulting in occasionally cloudy skies and occasionally mostly clear skies except that high cirrus clouds will most likely be present even when skies appear to be clear.

Thursday, 7 May 2015

Will skies be clear Thursday night over southern Ontario?

Mostly clear skies are expected, except for high-level cirrus clouds that will appear in the skies over most regions. The chart below shows the predicted location at 11 pm but the cirrus high cloudiness would probably be visible most of the time overnight over most locations to some extent.



Wednesday, 6 May 2015

Will skies be clear over southern Ontario Wednesday night?


It looks like skies will be clear except for some scattered mid-level clouds over southwestern regions, remaining from the cloud deck along the frontal zone that is over southwestern Ontario during Wednesday. While the frontal zone is weakening and the cloud deck is drying, the remnant low and mid-level moisture may appear as scattered clouds during the evening, and then may form fog by early morning.

Tuesday, 5 May 2015

Will skies be clear over southern Ontario Tuesday evening?


Skies will most likely be cloudy over most regions, except for regions near and north of the Toronto area, due to moisture (illustrated below) along a frontal zone over the southern Great Lakes region which is forecast to be over most of southern Ontario approximately south and west of Toronto.


Monday, 4 May 2015

Will skies be clear over southern Ontario Monday night?

It looks like skies will become mostly clear by sunset following passage of Monday's cold front, except for southwestern regions where mid-level moisture will remain (illustrated below) and cause mostly cloudy skies.

Sunday, 3 May 2015

Will skies be clear over southern Ontario Sunday evening?
It's another day and upcoming evening of scattered mid and high-level cloudiness so that the only forecast that could be made is a night of scattered cloudiness, with some periods having a mostly obscured sky, other periods having enough high-level cloudiness to cause lunar haloes, and some periods may be clear enough to appear like a clear sky especially with the bright moonlight.

Friday, 1 May 2015

Will skies be clear over southern Ontario Friday evening?


Skies will be mostly clear by the end of evening twilight. Some mid-level clouds may appear near Lake Ontario and GTHA at and shortly after sunset, caused by some mid-level moisture moving southward from the Lake Ontario region during the afternoon, but a high pressure ridge moving across southern Ontario (illustrated below) is expected to provide dry air and subsidence, resulting in mostly clear skies overnight.