March 6, 2018

Temperature: 31°F
Dew Point: 25°F
Wind: NE 13 mph
Clouds: Cloudy
Precipitation: 60%

 After the snow event from yesterday, there has been much precipitation in this area. In Figure 1, you can see that the warm air is circling up and bringing cold air down in a spinning fashion over the Midwest. Any time winds are moving from the NE, there is typically snow that follows.

Figure 1. Colored water vapor in North Central Region (accuweather.com). 

The Jet stream has a pocket of cold air over the Midwest where the snow is still circulating. North of it, there i another ridge on top with arctic cold air.

Figure 2. (500) jet stream (earth.nullschool.net).

There is an occluded front in the cycle of cold air over the Midwest. Because the cold air rushed in so fast it cut off the cold front. The low pressure system is also continuing through the east and pushing more snow and rain with it. The east coast and northeast especially will soon be experiencing their second lash of the storm.

Figure 3. Current surface map (intellicast.com).