Several Michigan counties are under winter weather alerts as more snow is expected heading into the weekend, with up to 7 inches of snow possible in some areas.

A winter weather advisory has been issued for several Michigan counties as more snow is expected on Thursday and into the weekend.

There are 18 counties in Michigan under winter weather alerts due to the chance of accumulating snow.

A strong storm system is expected in Metro Detroit later this week, bringing rain, snow and gusty winds to the region.

Snow is expected to return to Metro Detroit Wednesday afternoon, raising concerns about a refreeze and icy roads during the evening commute.

There are 43 counties in Michigan under winter weather alerts due to accumulating snow.

There are 40 counties in Michigan under winter weather alerts due to the chance of snow.

As the first wave of snow makes its way through Metro Detroit, here’s what to know about the second wave that’s expected on Tuesday evening.

Snow showers and cold artic air will arrive in Southeast Michigan this week.

The National Weather Service has issued a Winter Storm Watch for Wednesday and Thursday for all of Metro Detroit.

The cold air sits in place tonight under some clouds Sunday night.

Highs in the upper 20s (-2 degrees Celsius) will feel more like upper teens (-8 degrees Celsius) due to a north wind at 10 to 17 mph. AdFun fact: Today’s average high increased a degree to 33 degrees (0.5 degrees Celsius). Cloudy skies prevail Monday night, with lows near 20 degrees (-7 degrees Celsius). Snow showers are still possible Friday night, with lows in the mid teens (-9 degrees Celsius). Highs Saturday in the mid 20s (-4 degrees Celsius), and then only near 20 degrees (-7 degrees Celsius) on Sunday as a new surge of Arctic air arrives.

Highs in the low to mid 30s (0 to 1 degree Celsius), with a north wind becoming northeast at 5 to 10 mph. Tuesday snow forecastHighs Tuesday should once again be in the low to mid 30s (0 to 1 degrees Celsius). Snow ends Tuesday evening, with lows in the mid 20s (-5 to -4 degrees Celsius). Becoming partly cloudy by late Wednesday night, and the clearing skies will allow temperatures to fall into the mid-teens (-10 degrees Celsius). Weekend outlookIncreasing clouds on Saturday, with highs in the low 30s (0 degrees Celsius).

Highs in the low to mid 30s (0 to 1 degree Celsius), with a north wind becoming northeast at 5 to 10 mph. Tuesday snow forecastHighs Tuesday should once again be in the low to mid 30s (0 to 1 degrees Celsius). Snow ends Tuesday evening, with lows in the mid 20s (-5 to -4 degrees Celsius). Becoming partly cloudy by late Wednesday night, and the clearing skies will allow temperatures to fall into the mid-teens (-10 degrees Celsius). Weekend outlookIncreasing clouds on Saturday, with highs in the low 30s (0 degrees Celsius).