November 12, 3 PM Weather Forecast Update: Two Snow Systems & Arctic Blast

Two rounds of snowfall are expected over the next few days over the area with unseasonably cold air.

Posted: Nov 12, 2018 2:36 PM
Updated: Nov 12, 2018 3:22 PM


Round of snow will pass this evening to tonight.  It is moving into central Illinois right now.  Temperatures are beginning to fall now & as the snow moves in they will fall further to the 20s to lower 30s.  The snow may begin as a bit of light rain initially in places, but then transition pretty quickly to light snow.

This should move in after the main evening commute, like after 5:30 p.m., so no major issues are expected.  Most of the snow will fall between 6 p.m. & 12 a.m. over the area.

The deep tropical moisture is well southeast of us & the main surface low will track well southeast of the area.  This will cut down on snowfall totals here.

Now, for plowers, this may not be a very plowable snow, but given some slush & icy accumulation on some pavement, it will be a chemical treatment situation.

After wave of snow this evening-tonight, lake effect snow will continue in the northeastern counties into tomorrow before ending in the afternoon.  While this occurs, the rest of the area will see a nice clearing trend.  Despite the sunshine, it will be unseasonably cold!

Most of the area will see around 1" of snow.

There will be some scattered 1.2-1.5" amounts. 

Total snowfall may reach 2-2.5" in northern Fulton County due to lake effect.

With temperatures dropping from near 20 to the mid 20s tonight, watch for slick areas on roadways.  That will begin this evening.  Even though the pavement may be wet at first, temperatures will be on the way down, so icy spots will develop & accumulation will begin to occur on roadways.

Conditions should improve rapidly tomorrow morning given the sunshine, despite the cold temperatures.

Things are getting more & more interesting for late week.  Note only with this system coming out of the Gulf of Mexico keep the warm 50s at bay over Missouri, but it may bring mix & snow Thursday.

Models suggest some snowfall accumulation here.

It is unclear how much yet.

Then Arctic air rolls in with clipper Friday with a few rain/snow showers.

Much warmer weather should follow afterward with a couple/several big storm systems with rain & even a few storms.

Arctic blast should return as we exit November & move into December.

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Mild Finish To The Weekend
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