See expected snow totals here

4 Warn the WeatherToday is a 4Warn Weather Day.

Weather alerts

  • A Winter Storm Warning is in effect for Wayne, Washtenaw, Oakland, Macomb, Monroe, St. Clair, Sanilac and Lenawee counties until tonight.

  • Winter Weather Advisory for the rest of SE Michigan until 10 pm

The timing

While some light snow appears to be crossing the state line from the south this morning, the more widespread snow is set to begin around sunrise and then move up through the morning. This initial dusting may be just enough accumulation for brilliant conditions for the morning drive time throughout the Metro Detroit area.

We expect a slight weakening in the mid-morning before the storm strengthens around 10 am, with a noticeable afternoon peak in coverage and intensity.

A band of heavy snow is expected between 10 am and 4 pm, centered roughly in a line from Adrian to Metro Detroit to Port Huron. A snow rate of 1 inch per hour is likely during this time, creating significant travel implications tonight.

It looks like the snow will taper off by 7 pm into the evening.

Snow totals

Much of Southeastern Michigan will see 4-5 inches of snow, with downstream areas possibly pushing 6 inches in 12-14 hours on Wednesday. A higher value, favored for those south of I-94, can be raised closer to 5-6 inches.

The highest accumulation will likely occur around the Michigan/Indiana/Ohio state line, but the system’s trajectory also places it downstream in a favorable zone for a slightly extended period of moderate to heavy snowfall.

North toward the I-69 corridor, especially in the Flint area, 3-4 inches would be more reasonable, as the heaviest rates extend far beyond this area to the east/southeast.

In the Thumb region, some lake improvement will occur from midnight into the evening and will bring some local amounts of 5 inches or more as snow continues to accumulate for several hours longer.

More rounds of snow

Beyond this storm system, expect a mildly wintry pattern to return Friday into the weekend with cold and occasionally snowy conditions continuing into early next week. After a clipper system delivers light snowfall Friday/Friday night, a larger system could affect parts of the region later this weekend. This is the next system with widespread snow accumulation for our area. Temperatures will be noticeably cooler next week with highs in the low to mid 20s and single digits in the lower teens for overnight lows.

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