Storm over the midwest brings a mix to the region
It's kind of ironic that part of my school study this week is on cyclones and fronts. This is what we have going on here. A storm intensifies quickly over the midwest, and could bring a rough batch of weather around the Great Lakes region and the Ohio Valley. A warm front attached to it moves northeastward into New England on Sunday. (Note how the storm over the Great Lakes weakens as it moves eastward. I will talk more about that.) The result for our region is rain and snow, with a bit of a mix possible for the western interior.
Precipitation arrives over western and southern areas Sunday morning, and then moves to into the north and east Sunday evening into early Monday. As the storm weakens, steadier precipitation turns into shower activity which becomes widely scattered during the day on Monday, and dissipates overnight into Tuesday morning.
Most of the snowfall and mixed precipitation falls Sunday night into Monday morning. A poorly organized coastal low taps into colder air from high pressure over the Bay of St. Lawrence and causes temperatures to fall. This will create some slick spots over the interior Sunday night into Monday, and again Monday night into early Tuesday.
I do expect some light sleet and freezing rain to come for interior western areas, but I don't expect accumulations to be an issue.
Upper level energy to keep pattern rather unsettled
Notice how tightly wrapped the upper level energy is over the midwest, then weakens as it moves eastward. As what happens at the upper level also transfers to the surface. The storm becomes occluded, which weakens the impact on our region. As the upper energy and surface low decays, the energy and moisture associated with it dissipates and becomes disorganized. Due to a traffic jam over the north Atlantic, this remnant energy will hang around over our region for much of the week. This will bring clouds at times to the area, but otherwise the outlook appears dry until late week.
Temperature outlook through Monday