The first burst of snow of the season could occur on Monday throughout the Chicagoland area. Areas highlighted in yellow should expect a burst of wind-driven snow while areas in orange should expect heavy and wet snow. | Graphic via NWS

The first snowflakes of the season fell Monday morning in northeast Illinois and the National Weather Service says a “burst of snow” is expected later this afternoon.

The National Weather Service (NWS) issued a hazardous weather outlook for Lake and McHenry counties, including portions of North Central Illinois, Northeast Illinois and Northwest Indiana.

The NWS said a strong fall storm system will bring windy conditions to the area Monday into the evening.

Wind gusts of up to 35 mph are possible and sub-freezing temperatures are expected tonight.

The NWS said an “upper-level disturbance” will interact with the unseasonably cold air mass in place and result in a burst of some snow later Monday.

Little or no accumulation is expected but snow could fall at a “pretty good clip” across the Chicago metro area south down the Interstate 57 corridor.

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The timing is 3 p.m. to 9 p.m., according to the NWS.

Forecasters said people should prepare for extra travel time and check road conditions before driving.

In Northwest Indiana, lake enhancement is expected to result in a period of heavy, wet and wind-driven snow.