Light snow filters through Monday, with lake effect snow ramping up by Tuesday
A clipper system will work into northern Michigan on Monday, which will allow light snow to become widespread by the mid-morning timeframe. A broad 1-3" is expected, with temperatures generally ranging in the 20s. Snow amounts are not large, but will be enough to cause some slick spots. With a south-southwest wind, Mackinac Co. will see an uptick in lake-effect snow throughout the day - leading to additional snowfall amounts and is the reason a Winter Weather Advisory is in effect throughout the day.
The coldest air of the season (it is still fall) arrives by Tuesday, and this will ramp up the lake effect snowfall again. Starting Monday night, winds will shift to the N-NW, and stay that way throughout Tuesday. This N-NW wind direction will increase lake effect snow from the Leelanau Peninsula/Grand Traverse Bay region and areas south through Benzie/Manistee/Mason/Oceana counties. These counties will be under a Winter Storm Warning from 10PM Monday through 12AM Wednesday - accumulations will generally be in the 4-8" range with isolated spots seeing more. Around the lakeshore counties (Antrim, Kalkaska, Wexford, Missaukee, Lake, Osceola) a Winter Weather Advisory is in effect for the same time period. Temperatures on Tuesday will struggle to reach the 20s, with some in the Upper Peninsula only topping out in the single digits. Winds out of the N-NW at 10-20 mph will allow wind chills to be on either side of zero throughout the day.
On and off snow showers (either in the form of lake effect or various clipper systems) will continue throughout most of the extended forecast. This will lead to more accumulations, and pile on the fresh snow pack. Temperatures will remain cold and below normal as well, with many struggling to reach the 20s on Wednesday as well.
We are always looking for snow accumulation totals, so if you want to measure and send us the amount and where you live we would appreciate that very much. Email us at: firstname.lastname@example.org which comes right to our desk.
-Meteorologist Blake Hansen