By John Dodge

CHICAGO (CBS) — While the temperatures have moderated somewhat, it comes with a price: More snow is expected this weekend.

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The precise amount of snow is difficult to predict, but the area will see three waves of snow in varying intensities, starting late Friday night.

The first round is only expected to drop about an inch of snow at the most.

However, even a small amount will set another milestone.

Another half-inch and the winter of 2013-14 will rank as the fourth-snowiest ever in Chicago. So far, Chicago has gotten 67.9 inches. The winter of 1967 currently ranks No. 4 with 68.4 inches.

On Saturday night, a second wave will pass through, leaving 2-4 inches. High temperatures will be in the low 20s.

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A bigger system will move into the Midwest on Sunday, but right now it appears that it will stay south of Chicago.

However, the path bears watching.

If the storm track shifts to the north, the Chicago area could see at least six inches of snow.

However, right now the heavy snowfall will be in central Illinois on Sunday, with some heavy amounts possible in the far southern suburbs (3 to 5 inches). Chicago could see some scattered snow showers.

Towns in the middle of the state could see 6 to 10 inches.

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A Winter Storm Watch has been issued for the southern half of the state for Sunday and Monday.