A Winter Weather Advisory starts at midnight and runs to noon Thursday for Oceana, Newaygo, Mecosta and Isabella counties to the north. This is for 1-3″ of snow (heaviest north of US 10), the possibility of a little freezing (doesn’t make too much of that to make travel more difficult) and wind gusts to 30-35 mph.
Here’s the Grand Rapids NWS graphic on the storm for later tonight. Southern Lower Michigan will see mostly rain from this system and main roads may just be wet for the Thursday AM commute.
This will be a wet, heavy snow. Des;pite that, wind gusts of 30-45 mph could cause some drifting. Roads will become snow covered and slippery in most areas by early Thursday morning.
Here’s the Midwest Weather Hazards Map. Pink is Winter Storm Warning. Purple is Winter Weather Advisory. You can see the anticipated path of the heavier snow, from Colorado, thru Nebraska, Iowa, Wisconsin and into Upper Michigan.
Grand Rapids will see rain and maybe a little snow as the colder air filters in, but the heavier snow will be north of US 10.
The latest 8-14 Day Temperature Outlook from the Climate Prediction Center shows the pattern change, with the cold air moving east and south. Confidence is high that January will end with significantly colder air over much of the country and with that cold air, the possibility of both storm system snowfall and lake-effect snow showers.