A couple of low pressure systems forecast to move through the middle of the U.S. will bring unsettled weather to the Upper Midwest this week. Here is a quick summary of what to expect through Wednesday:
The first low pressure system will stay well off to our northwest today, as seen in the image below. However, strong high pressure to the east will create a tight pressure gradient across the western Great Lakes (depicted by the tightly spaced yellow lines), resulting in windy conditions today. Southerly winds will gust to around 30 mph at times. There is a small chance of showers this afternoon near the Wisconsin Dells, otherwise southern Wisconsin will be dry.
The second low pressure system will affect the area Tuesday afternoon through Wednesday, bringing widespread wet weather to the Upper Midwest. This low will track from the panhandle of Oklahoma early Tuesday evening, northeast into Wisconsin by Wednesday morning. See the image below:
The next image shows the expected precipitation amounts for Wisconsin. The bulk of the precipitation will occur from 6 PM Tuesday through noon on Wednesday.
Temperatures will be cold enough on the northwest side of the low pressure track to bring the threat of snow. Here is a 24 hour probability of 4 inches or more of snow running from noon Tuesday through noon Wednesday:
Here is the actual snowfall forecast for northwest Wisconsin:
And check it out...a Winter Storm Watch has been posted for parts of northwest Wisconsin and southern Minnesota!!
The low pressure system will track off to the northeast Wednesday night with cooler high pressure briefly building in for Thursday.