Winter Storm Watches In Effect. Half a Foot Of Snow Possible

Winter Storm Watches are now in effect across much of Central Illinois and even parts of Southern Illinois in anticipation of a winter storm to take aim on the region Sunday night into Monday. A corridor of up to 7 inches of snow is possible in some of these areas. Expect upgrades to advisories and/or warnings later today or early Monday as further details become clear. 

Right now there appears the first wave of precip will arrive as a wintry mix across Central Illinois Sunday evening, before eventually changing over to all snow by Monday. We'll have a more detailed article with event timing later today.

Detailed watch info is as follows

...WINTER STORM TO IMPACT CENTRAL AND SOUTHEAST ILLINOIS...  

Counties: Schuyler-Mason-Logan-Cass-Menard-Scott-Morgan-Sangamon-Christian- Macon

Including the cities of Rushville, Havana, Lincoln, Beardstown, Petersburg, Winchester, Jacksonville, Springfield, Taylorville, and Decatur

...WINTER STORM WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH MONDAY EVENING... * WHAT...Wintry mix of snow and freezing rain possible. Total snow accumulations of 4 to 7 inches and ice accumulations of up to one tenth of an inch possible. * WHERE...Portions of central and west central Illinois. * WHEN...From Sunday afternoon through Monday evening. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact Sunday evening travelers and the Monday morning and evening commutes.
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Counties: Bond IL-Clinton IL-Cole MO-Fayette IL-Franklin MO-Gasconade MO- Jefferson MO-Madison IL-Marion IL-Moniteau MO-Monroe IL-Osage MO- Saint Charles MO-Saint Clair IL-Saint Louis City MO- Saint Louis MO-Warren MO-Washington IL- 

Including the cities of Alton, Belleville, Cahokia, Centralia, Edwardsville, Jefferson City, Saint Charles, Saint Louis, Salem, Sullivan, Union, Vandalia, and Washington 

...WINTER STORM WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH MONDAY AFTERNOON...

* WHAT...Heavy mixed precipitation possible. Total snow accumulations of 1 to 4 inches and ice accumulations of around one tenth of an inch possible. 
* WHERE...Portions of central and east central Missouri and south central and southwest Illinois. * WHEN...From Sunday afternoon through Monday afternoon. 
* IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact Sunday evening travelers and the Monday morning and evening commutes. 
​ * ADDITIONAL DETAILS...A mix of snow, sleet and freezing rain may lead to hazardous driving conditions Sunday through Monday. PRECAUTIONARY/PREPAREDNESS ACTIONS...  A Winter Storm Watch is advanced notice that the potential for severe winter weather exists in the Watch area, but it does not mean it is a certainty. Those in the Watch area should begin preparing in case the storm does materialize. If you have travel planned, you may want to adjust your travel time to avoid the storm. Also, you should use this advanced notice to make certain your vehicle is winterized. Make preparations at home by stocking emergency supplies, such as food, medicine, and extra heating fuel, just in case the storm makes travel impossible. This is especially important for those living in rural areas. 
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Our current TAM is shown below, expect an updated one later today as well. Now that the system responsible will be coming on shore, we should be able to get a better grip on what could potentially happen. 

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