Colder Weather On The Way! (Updated 5 am Sat)

Active Weather Pattern Next Few Days

It will go something like this:  Low pressure moves east, then high pressure, then low pressure, then high pressure, all in the next 5 days. 

Here's a graph summarizing the week:

 

Now the details!

   
A vigorous low pressure system moved across Wisconsin last night.  Temperatures behind the low will remain mild today, with highs in the upper 40s to lower 50s.  Breezy winds will swing around to the west-northwest in the afternoon.  You will probably have to rake some more leaves after today.
High pressure will build in behind the departing low on Sunday, but temperatures will not fall very hard, holding near normal for this time of year.  Highs on Sunday will be in the mid 40s, with partly to mostly sunny skies.
The high will slide off to the east by Monday, allowing a sharp cold front to dive south into the northern tier of the U.S.  Some mixed light rain and snow may accompany the front as it moves through on Monday. Highs will fall through the 30s behind the cold front.
A big and cold Canadian high pressure system will then settle over a large part of the United States on Tuesday.  Tuesday into Tuesday night will be the coldest period of the next week. Highs on Tuesday will only be around 30 with brisk northwest winds.
With the center of the high over the area Wednesday morning, clear skies and light winds will allow temperatures to fall into the upper teens to around 20 by sunrise.  The high will then slide off to the east slowly, allowing temperatures to modify over the remainder of next week.

Below are animations of high and low temperatures from Mon-Fri of next week.  This shows how the temperatures bottom out, then recover toward the end of the week.

High Temperatures:

Low Temperatures:

 


 

 

Davis/Wood
NWS Milwaukee/Sullivan, WI



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