Thursday, January 17, 2013

January 18-20 Clipper Event

A clipper event appears likely for parts of the Upper Midwest from January 18-20, 2013.

At this time, model forecasts have a disturbance pushing through southern Canada and possibly into the Great Lakes, with some weak accumulating likely to also move into the region. As the system pushes through, temperatures will rise to the freezing level in central Illinois and southern Iowa in response to the incoming clipper system. However, due to the typical lack of moisture in clipper systems, this will not be a significant event. I expect anywhere from a trace of snow to 1 inch of snow in the light blue areas, and possibly as high as 3 inches of snow in very isolated areas of the dark blue areas.

The new snow day potential chart has been made, and is shown below for this timeframe:



PK said...

Any chance we can see what u see on the gfs or euro maps that make u think storms are coming?

Andrew said...

I just look at the models. You can check the Weather Models page, and that's the same stuff I look at.